CN217339100U

CN217339100U - Novel needle for flushing lacrimal passage

Info

Publication number: CN217339100U
Application number: CN202221186297.1U
Authority: CN
Inventors: 王朋
Original assignee: Third Medical Center of PLA General Hospital
Current assignee: Third Medical Center of PLA General Hospital
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-09-02
Anticipated expiration: 2032-05-17

Abstract

The utility model provides a novel lacrimal passage flushing needle head, wherein scales are arranged on a needle head body, and a convex lens is arranged on a needle head seat, so that the scales can be enlarged and observed, and the lacrimal passage blockage condition can be judged according to the depth of the needle head body inserted into the lacrimal passage; the inner part of the bracket of the convex lens can rotate through the hinged design, and the bracket and the needle head seat can also rotate mutually, so that the height and the angle of the convex lens can be flexibly adjusted, and the focus of the convex lens can be aligned to the corresponding position of the scale when the needle head body is inserted into different depths, and the specific reading can be observed conveniently; the support and the needle head seat can be designed into a structure convenient to disassemble and can be separated after being used, the needle head seat and the needle head body are discarded after being treated as medical waste, and the support and the convex lens can be reused after being disinfected, so that the cost is reduced under the condition of ensuring safety.

Description

Novel needle for flushing lacrimal passage

Technical Field

The utility model belongs to the technical field of therapeutic equipment, in particular to a novel syringe needle for flushing lacrimal passage.

Background

Lacrimal passage obstruction is a common ophthalmic disease, and usually occurs at the junction of lacrimal punctum, lacrimal canaliculus, lacrimal sac and nasolacrimal duct and at the lower mouth of nasolacrimal duct, with the main symptom of epiphora, and if the treatment is not thorough, there is a risk of intraocular and external infection. At present, the most common method for diagnosing the lacrimal duct obstruction is lacrimal duct flushing, namely, a syringe is used for injecting flushing liquid such as physiological saline from a lower lacrimal punctum of a lacrimal punctum, if liquid backflow occurs, the lacrimal duct obstruction can be judged, and meanwhile, the obstruction degree is judged through the depth of a needle inserted into the lacrimal duct. The existing needle head lacks a design capable of intuitively measuring the insertion depth, and the excessively thin shape of the needle head determines that a mark which can be conveniently observed by naked eyes cannot be arranged on the needle head, so that the lacrimal passage blocking condition cannot be accurately judged.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a novel syringe needle for flushing lacrimal passage.

The utility model discloses specific technical scheme as follows:

the utility model provides a novel lacrimal passage flushing needle head, which comprises a needle head body and a needle head seat fixedly arranged at the bottom of the needle head body, wherein the needle head body is provided with scales; the needle head seat is connected with a support, a convex lens is arranged on the support, and the focus of the lens falls on the needle head body; the support includes first support body and second support body articulated each other, first support body with the syringe needle seat is connected, convex lens establishes on the second support body.

Furthermore, the support also comprises a connecting piece which is mutually hinged with the first support body, and the connecting piece is movably connected with the needle head seat.

Furthermore, the connecting piece is provided with a through hole, and the needle head seat is embedded in the through hole and is in threaded connection with the inner wall of the through hole.

Furthermore, the connecting sheet is provided with two arc-shaped and mutually symmetrical clamping rings, the clamping rings surround to form a clamping groove, and the needle head seat is clamped in the clamping groove.

Furthermore, elastic gaskets are arranged on the inner walls of the two clamping rings.

The utility model has the advantages as follows: the utility model provides a novel lacrimal passage flushing needle head, wherein scales are arranged on a needle head body, and a convex lens is arranged on a needle head seat, so that the scales can be enlarged and observed, and the lacrimal passage blockage condition can be judged according to the depth of the needle head body inserted into the lacrimal passage; the inner part of the bracket of the convex lens can rotate through the hinged design, and the bracket and the needle head seat can also rotate mutually, so that the height and the angle of the convex lens can be flexibly adjusted, and the focus of the convex lens can be aligned to the corresponding position of the scale when the needle head body is inserted into different depths, and the specific reading can be observed conveniently; the support and the needle head seat can be designed into a structure convenient to disassemble and can be separated after being used, the needle head seat and the needle head body are discarded after being treated as medical waste, and the support and the convex lens can be reused after being disinfected, so that the cost is reduced under the condition of ensuring safety.

Drawings

FIG. 1 is a schematic view of the novel lacrimal passage irrigation needle according to an embodiment in use;

FIG. 2 is a schematic view of the structure of the novel lacrimal passage irrigation needle according to an embodiment;

FIG. 3 is a schematic view showing a first structure of a connecting piece of the novel lacrimal passage irrigation needle according to an embodiment;

fig. 4 is a schematic structural diagram of a second structure of a connecting sheet in the novel lacrimal passage irrigation needle according to the embodiment.

Wherein: 1. a needle body; 2. needle seat, 3, scale; 4. a convex lens; 5. a first frame body; 6. a second frame body; 7. connecting sheets; 71. a through hole; 72. a snap ring; 73. a card slot; 74. an elastic pad.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings.

Examples

As shown in fig. 1-2, embodiment 1 of the present invention provides a novel lacrimal passage irrigation needle, which comprises a needle body 1 and a needle base 2 fixedly arranged at the bottom of the needle body 1, wherein the needle body 1 is provided with a scale 3; the needle head seat 2 is connected with a support, the support is provided with a convex lens 4, and the focus of the lens falls on the needle head body 1.

When in use, the needle head seat 2 is connected with an injector provided with normal saline, then the needle head body 1 is inserted into the lacrimal canaliculus from the punctum, the depth of the inserted needle can be determined through the scale 3, thereby accurately judging the degree of lacrimal duct obstruction; because the needle body 1 is very thin, the scales 3 are also very small and are inconvenient to identify by naked eyes, so that the needle body 1 and the scales 3 are amplified through the convex lens 4, and the observation of medical staff is facilitated.

In some specific embodiments, the holder comprises a first holder 5 and a second holder 6 hinged to each other, the first holder 5 is connected to the needle holder 2, the convex lens 4 is provided on the second holder 6, and the angle between the convex lens 4 and the needle body 1 is adjusted by rotating the second holder 6, so that when the needle body 1 is inserted into different depths, the focus of the convex lens 4 can be aligned with the corresponding position of the scale 3, so as to observe specific readings.

In order to further facilitate the adjustment of the position and the angle of the convex lens 4, the support further comprises a connecting piece 7 mutually hinged with the first support body 5, and the connecting piece 7 is movably connected with the needle head base 2. The second frame body 6 and the first frame body 5, the first frame body 5 and the connecting piece 7 can rotate mutually, so that the convex lens 4 can be adjusted more flexibly and more greatly.

In order to reduce the cost on the premise of ensuring safety, the connecting sheet 7 and the needle base 2 can be designed into a structure convenient to disassemble, the support and the needle base 2 are separated after the use is finished, the needle base 2 and the needle body 1 are discarded after being treated as medical waste, and the support and the convex lens 4 can be reused after being sterilized. The method specifically comprises the following steps:

as shown in fig. 3, in some specific embodiments, the fixation of the connecting piece 7 to the needle base 2 is achieved by: the connecting piece 7 is provided with a through hole 71, and the needle head seat 2 is embedded in the through hole 71 and is in threaded connection with the inner wall of the through hole 71. The design of the sleeve connection and the thread connection ensures that the connecting sheet 7 and the needle head seat 2 can be conveniently disassembled, assembled and fixed, thereby being convenient for use.

As shown in fig. 4, in some specific embodiments, the fixation of the connecting piece 7 to the needle base 2 can also be achieved by: two arc-shaped clamping rings 72 which are symmetrical to each other are arranged on the connecting sheet 7, the two clamping rings 72 enclose to form a clamping groove 73, and the needle head seat 2 is clamped in the clamping groove 7. The quick assembly disassembly of connection piece 7 and syringe needle seat 2 can also be realized to the mode of joint to facilitate the use.

In order to improve the clamping firmness, the inner walls of the two clamping rings 72 can be provided with elastic gaskets 74, and the clamping grooves 73 are in interference fit with the needle seat 2 through the elastic gaskets 74, so that the needle seat 2 can be tightly clamped by the clamping grooves 73.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. A novel lacrimal passage flushing needle is characterized by comprising a needle body (1) and a needle seat (2) fixedly arranged at the bottom of the needle body (1), wherein scales (3) are arranged on the needle body (1); the needle head seat (2) is connected with a support, a convex lens (4) is arranged on the support, and the focus of the lens is located on the needle head body (1);

the support includes first support body (5) and second support body (6) of mutual articulated, first support body (5) with syringe needle seat (2) are connected, establish convex lens (4) on second support body (6).

2. A novel lacrimal passage irrigation needle according to claim 1, characterized in that said bracket further comprises a connecting piece (7) hinged to said first frame body (5), said connecting piece (7) being movably connected to said needle base (2).

3. A novel lacrimal passage irrigation needle as claimed in claim 2, characterized in that said connecting piece (7) is provided with a through hole (71), said needle base (2) is embedded in said through hole (71) and is screw-connected with the inner wall of said through hole (71).

4. A novel lacrimal passage irrigation needle according to claim 2, wherein two arc-shaped and symmetrical snap rings (72) are provided on the connecting piece (7), the two snap rings (72) enclose to form a snap groove (73), and the needle base (2) is snapped in the snap groove (73).

5. A novel lacrimal passage irrigation needle as claimed in claim 4, wherein the inner walls of both snap rings (72) are provided with resilient pads (74).