CN212466323U - Peribulbar injection trocar needle for eyes - Google Patents

Abstract

The utility model discloses a ball all is shot and is annotated trocar syringe needle for eyes, including syringe needle, sleeve pipe and injection cap, the front portion of syringe needle is equipped with the flexion, the crookedness of flexion is 10-45, the front end of syringe needle is blunt, and its cross-section is oval, the cover pipe box is in on the syringe needle, its end with the injection cap is connected, the syringe needle passes sleeve pipe, injection cap, its front end is exposed outside the sleeve pipe. The innovative design of the peribulbar anesthesia pinhead of the utility model designs the pinhead curvature from the human engineering angle, thus solving the defect that the traditional pinhead is too sharp, effectively avoiding the problem that the traditional pinhead excessively depends on the manual operation of an operator to bypass the maximum diameter of the eyeball and avoiding accidentally injuring the eyeball; the innovative cannula design makes it possible to supplement anesthetic, avoiding the problem of re-injection during surgery.

Description

Peribulbar injection trocar needle for eyes

Technical Field

The utility model belongs to the technical field of medical instrument, in particular to global injection trocar needle for eyes.

Background

The eyeball anesthesia technology is an important ophthalmic anesthesia technology, and the retrobulbar anesthesia technology is applied to past anesthesia, but the complications are many, and serious blindness or unrecoverable ptosis can be caused. In recent years, peribulbar anesthesia has been used by more people, but since there is no dedicated peribulbar anesthesia needle, peribulbar anesthesia is still performed clinically with a 27-gauge needle or a dental needle having a needle length of 12 mm. The 12mm long ball back needle is a blunt needle, and pain patients experience poor feeling during injection. The dental needle is too sharp, so that the eyeball is punctured occasionally. Meanwhile, peribulbar anesthesia is infiltration anesthesia, so that the problem that the anesthetic cannot be effectively injected due to too long operation time often occurs.

Disclosure of Invention

The utility model provides a peribulbar injection trocar needle for eyes, aiming at the technical problems in the prior art, the innovative peribulbar anesthesia needle design is adopted, the needle curvature is designed from the human engineering angle, and the defect that the traditional needle is too sharp is solved, thereby effectively avoiding the problem that the traditional needle excessively depends on the manipulation of an operator to bypass the maximum diameter of an eyeball and accidentally injure the eyeball; the innovative cannula design makes it possible to supplement anesthetic, avoiding the problem of re-injection during surgery.

The utility model adopts the technical proposal that: the utility model provides a global injection trocar syringe needle for eyes, includes syringe needle, sleeve pipe and injection cap, the front portion of syringe needle is equipped with the flexion, the flexion of flexion is 10-45, the front end of syringe needle is blunt, and its cross-section is oval, the cover pipe box is in on the syringe needle, its end with the injection cap is connected, the syringe needle passes sleeve pipe, injection cap, its front end expose outside the sleeve pipe.

Preferably, the needle is a stainless steel needle with the model number of 29G, the sleeve is a silica gel sleeve, and the injection cap is a hard plastic injection cap.

Preferably, the curvature of the curved portion is 15 °.

The working principle is as follows: the stainless steel needle part is in an oval shape and is blunt, so that peribulbar injection of the conjunctival sac is facilitated; meanwhile, the needle head is 29G, so that the minimally invasive suture is realized without sewing; avoid serious complications such as eyeball puncture and the like. The stainless steel needle head is bent by 15 degrees, so that the eyeball curvature in human engineering is met, and the puncture complication is avoided. The stainless steel needle is externally provided with a silica gel sleeve which is connected with the plastic injection cap, after puncture, the stainless steel injection needle can be pulled out, and the silica gel sleeve and the injection cap are kept in place to supplement anesthetic.

Compared with the prior art, the utility model discloses the beneficial effect who has is: 1. the utility model is designed to conform to the radian of the normal eyeball shape and is designed for human engineering;

2. the utility model not only avoids the uncomfortable feeling of anesthesia after the ball, but also effectively solves the problem of adding anesthetic in the operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure 1-needle, 2-cannula, 3-injection cap.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment of the utility model discloses ball all injection trocar syringe needles for eyes, as shown in the figure, it includes syringe needle 1, sleeve pipe 2 and injection cap 3, the front portion of syringe needle 1 is equipped with the flexion, the flexion is 15 crooked, the front end of syringe needle 1 is blunt, and its cross-section is oval, sleeve pipe 2 cover is in on the syringe needle 1, its end with injection cap 3 is connected, syringe needle 1 passes sleeve pipe 2, injection cap 3, its front end is exposed outside sleeve pipe 2. The syringe needle 1 is the stainless steel syringe needle, and the model is 29G, sleeve pipe 2 is the silica gel sleeve pipe, injection cap 3 is the hard plastic injection cap. The length of the needle 1 and the sleeve 2 is 25-40 mm.

When in use, the needle head 1 and the sleeve 2 are pricked into the periphery of the ball, the needle head 1 is pulled out, and the liquid medicine in the injection cap 3 flows out along the sleeve 2 to continuously anaesthetize the periphery of the ball.

The present invention has been described in detail with reference to the embodiments, but the description is only exemplary of the present invention and should not be construed as limiting the scope of the present invention. The protection scope of the present invention is defined by the claims. Technical scheme, or technical personnel in the field are in the utility model technical scheme's inspiration the utility model discloses an essence and protection within range, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change that application scope was made and improve etc. all should still belong to within the protection scope is covered to the patent of the utility model.

Claims (3)

1. A peribulbar injection trocar needle for eyes, which is characterized in that: including syringe needle, sleeve pipe and injection cap, the front portion of syringe needle is equipped with the flexion, the crookedness of flexion is 10-45, the front end of syringe needle is blunt, and its cross-section is oval, the sleeve pipe box is in on the syringe needle, its end with the injection cap is connected, the syringe needle passes sleeve pipe, injection cap, its front end is exposed outside the sleeve pipe.

2. The periocular injection trocar needle of claim 1, wherein: the syringe needle is the stainless steel syringe needle, and the model is 29G, the sleeve pipe is the silica gel sleeve pipe, the injection cap is the hard plastic injection cap.

3. The periocular injection trocar needle of claim 1, wherein: the curvature of the bending part is 15 degrees.

Images