CN207666967U - A kind of two-tube lacrimal passage drainage tubes - Google Patents

Abstract

A double-tube lacrimal duct drainage tube, which adopts an integrated structure of the catheter end and the drainage tube body, the transition connection between the catheter end and the drainage tube body adopts a gradual change in size, and the catheter end and the drainage tube body are made of different flexible materials It is easier to guide the double lacrimal duct drainage tube into the upper lacrimal canaliculus and the lower lacrimal canaliculus, and the operation is convenient.

Description

A double lacrimal drainage tube

technical field

The utility model relates to the technical field of medical equipment, in particular to a double-tube lacrimal duct drainage tube.

Background technique

Canaliculus obstruction is a common lacrimal duct disease. At present, there is a clinical treatment method using double-tube one-step artificial lacrimal duct implantation. However, in the above treatment, the guide tube needs to be inserted into the lower nasal passage first, and then Try to pull it from the lower meatus into the nasal cavity. However, the original guiding tube is too hard to be easily pulled into the nasal cavity, which brings inconvenience to the operation and increases the pain of the patient.

Therefore, there is still a lack of a double-tube lacrimal duct drainage tube that can be introduced into the lower nasal passage and is easily pulled into the nasal cavity from the lower nasal passage to provide convenience for patients with lacrimal duct blockage.

Contents of the invention

In order to solve the deficiencies of the prior art, the utility model provides a double-tube lacrimal drainage tube.

The technical solution adopted by the utility model is: a double-tube lacrimal duct drainage tube, including a drainage tube body, and both ends of the drainage tube body are provided with a catheter device, and the catheter device includes a catheter end and a The guide needle in the catheter end, the catheter end and the drainage tube body are of an integrated structure, the transition connection between the catheter end and the drainage tube body adopts a gradual change in size, and the guide needle and the catheter end can be The connection is disassembled, and the catheter end is connected with the lumen of the drainage tube body.

The connection between the drainage tube body and the catheter end is also provided with a needle hole, and the guide needle is inserted into the catheter end through the needle hole.

The catheter end of the integrated structure and the catheter end of the drainage tube body are more flexible than the material of the drainage tube body.

The drainage tube body is made of medical PP material, and the catheter end is made of polyurethane material.

The end of the introducer needle is also provided with a handle, and the handle is located outside the end of the catheter.

The end of the conduit end is in the shape of a closed arc.

The length of the drainage tube body is 30cm, and the outer diameter is 0.65mm.

The length of the catheter end is 13cm, the outer diameter is 1mm, and the inner diameter is 0.6mm.

The beneficial effects of the utility model are: the utility model provides a double-tube lacrimal duct drainage tube, which adopts an integrated structure of the catheter end and the drainage tube body, and adopts a transition connection with a gradual change in size between the catheter end and the drainage tube body. The end and the drainage tube body are made of different flexible materials, which makes it easier for the double-tube lacrimal duct drainage tube to lead into the upper lacrimal canaliculus and the lower lacrimal canaliculus, and is convenient to operate.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure, 1-drainage tube body, 2-catheter device, 3-introducer needle, 31-handle.

Detailed ways

The utility model is further described in conjunction with Fig. 1. A double-tube lacrimal duct drainage tube includes a drainage tube body (1), and catheter devices (2) are provided at both ends of the drainage tube body (1). The catheter device (2) includes a catheter end and an introducer needle (3) inserted into the catheter end, the catheter end and the drainage tube body (1) are of an integrated structure, and the catheter end and the drainage tube body (1) A transitional connection with a gradual change in size is adopted, the guide needle (3) is detachably connected to the catheter end, and the catheter end is connected to the lumen of the drainage tube body (1). The connection between the drainage tube body (1) and the catheter end is also provided with a needle hole, and the guide needle (3) is inserted into the catheter end through the needle hole. The catheter end of the integrated structure and the catheter end of the drainage tube body (1) are more flexible than the material of the drainage tube body (1). The drainage tube body (1) is made of medical PP material, and the catheter end is made of polyurethane material. The utility model adopts an integrated structure of the catheter end and the drainage tube body, and the transition connection between the catheter end and the drainage tube body adopts a gradually changing size, and the catheter end and the drainage tube body are made of materials with different flexibility, so that the double-tube tears It is easier to guide the drainage tube into the upper lacrimal canaliculus and the lower lacrimal canaliculus, and the operation is convenient.

The end of the guide needle (3) is also provided with a handle (31), and the handle (31) is located outside the end of the catheter to facilitate insertion and removal of the guide needle (3).

The end of the conduit end is in the shape of a closed arc.

The length of the drainage tube body (1) is 30cm, and the outer diameter is 0.65mm.

The length of the catheter end is 13cm, the outer diameter is 1mm, and the inner diameter is 0.6mm.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (8)

1. A double-tube lacrimal duct drainage tube, comprising a drainage tube body (1), characterized in that, both ends of the drainage tube body (1) are provided with a catheter device (2), and the catheter device (2) ) includes a catheter end and a guide needle (3) inserted into the catheter end, the catheter end and the drainage tube body (1) are of an integrated structure, and the catheter end and the drainage tube body (1) A transition connection with gradually changing sizes is adopted, the guide needle (3) is detachably connected to the catheter end, and the catheter end is connected to the inner cavity of the drainage tube body (1). 2. A double-tube lacrimal duct drainage tube according to claim 1, characterized in that a needle hole is provided at the connection between the drainage tube body (1) and the catheter end, and the guide needle (3 ) inserted through the pinhole into the catheter end. 3. A double-tube lacrimal duct drainage tube according to claim 1, characterized in that the catheter end of the integrated structure and the catheter end of the drainage tube body (1) are more flexible than the drainage tube body (1) The flexibility of the material. 4. A double lacrimal drainage tube according to claim 3, characterized in that, the drainage tube body (1) is made of medical PP material, and the catheter end is made of polyurethane material. 5. A double-tube lacrimal drainage tube according to claim 1, characterized in that, the end of the guide needle (3) is also provided with a handle (31), and the handle (31 ) outside the conduit end. 6. A double-tube lacrimal drainage tube according to claim 1, characterized in that, the end of the catheter end is in a closed arc shape. 7. The double lacrimal duct drainage tube according to claim 1, characterized in that, the drainage tube body (1) has a length of 30 cm and an outer diameter of 0.65 mm. 8. A double-tube lacrimal drainage tube according to claim 1, characterized in that the length of the catheter end is 13 cm, the outer diameter is 1 mm, and the inner diameter is 0.6 mm.