CN211156659U

CN211156659U - Lacrimal passage irrigation needle

Info

Publication number: CN211156659U
Application number: CN201921993988.0U
Authority: CN
Inventors: 刘明琼; 卞薇; 姚佳佳
Original assignee: First Affiliated Hospital of PLA Military Medical University
Current assignee: First Affiliated Hospital of PLA Military Medical University
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-08-04
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a lacrimal passage washes needle belongs to medical instrument technical field, including syringe needle, cylinder, the syringe needle includes the needle body and the needle file that sets up with the needle body an organic whole, the needle file other end can be dismantled with the cylinder and be connected, be provided with a feed liquor pipe on the needle file, the feed liquor pipe be provided with needle file inner chamber intercommunication, and the feed liquor passageway that is greater than the syringe needle diameter, be provided with the check valve that can prevent needle file inner chamber flush fluid toward outer spilling over on the feed liquor passageway, the oral area of feed liquor pipe is provided with the seal port, the seal port lid has closed sealed lid, the below of cylinder is provided with the handle of gripping. The utility model can lead the washing liquid to pass through by arranging the liquid inlet pipe with the liquid inlet channel larger than the diameter of the needle head, thereby improving the suction efficiency; meanwhile, the backflow of the flushing liquid is prevented through the one-way valve, the total amount of the flushing liquid and the pressure in the cylinder are kept, the flushing liquid is not wasted when pushed out, and the pressure is constant, so that the operation is facilitated.

Description

Lacrimal passage irrigation needle

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to lacrimal passage washes needle.

Background

Lacrimal passage irrigation is an operation technique for injecting irrigation fluid or other liquid medicine into lacrimal passage to dredge different obstruction of lacrimal passage, and is a conventional means for diagnosing and treating lacrimal passage diseases. Most of the existing lacrimal passage irrigators are of syringe structures, most of the existing syringes in the existing market comprise syringes with nipples, push rods and irrigation needles, and the irrigation needles are fixedly connected with the nipples on the syringes through pintle.

For the narrow and small patient of some punctums of cooperation, the diameter of current washing needle designs very little, generally is 0.3 ~ 0.7mm, and the trafficability characteristic is relatively poor, simultaneously, for the matching degree that improves washing needle and human lacrimal passage route, the head of current washing needle is bent, though can reduce the operation risk, has brought a new problem from this: since the inner bore of the irrigation needle cannot maintain its original size when bent, and may become narrower, the fluidity thereof is further reduced, and it is difficult, laborious and inefficient to suck the irrigation fluid.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a lacrimal passage irrigation needle can be light inhales the flush fluid to solve prior art and inhale the difficult and inefficiency problem of flush fluid.

The utility model discloses a following technical scheme realizes:

lacrimal passage washes needle, including syringe needle, cylinder, the syringe needle includes the needle body and the needle file that sets up with the needle body is integrative, the needle file other end can be dismantled with the cylinder and be connected, be provided with a feed liquor pipe on the needle file, the feed liquor pipe be provided with needle file inner chamber intercommunication, and than the inlet channel that the needle head diameter is big, the last check valve that can prevent needle file inner chamber flush fluid toward outer spilling over that is provided with of inlet channel, the oral area of feed liquor pipe is provided with the seal port, the seal port lid has closed sealed lid, the below of cylinder is provided with the handle of gripping.

Further, the ratio of the diameter of the liquid inlet channel to the diameter of the needle is 2-6.

Further, the needle body comprises a front section and a rear section which forms an included angle of 110 degrees and 125 degrees with the front section, and length scribed lines are arranged on the front section and the rear section.

Furthermore, the end part of the needle body is spherical.

Further, the length of the front section is 2-5 mm, and the length of the rear section is 5-7 mm.

The needle body is characterized by further comprising an extension pipe which is consistent with the front section of the needle body in direction, wherein the extension pipe is a cylindrical straight pipe, one end of the extension pipe is connected with a liquid inlet pipe sealing opening through a 90-degree joint, and the other end of the extension pipe is detachably connected with the sealing cover.

The beneficial effects of the utility model reside in that:

the utility model can lead the washing liquid to pass through by arranging the liquid inlet pipe with the liquid inlet channel larger than the diameter of the needle head, thereby improving the suction efficiency; meanwhile, the backflow of the flushing liquid is prevented through the one-way valve, the total amount of the flushing liquid and the pressure in the cylinder are kept, the flushing liquid is not wasted when pushed out, and the pressure is constant, so that the operation is facilitated; in addition, the opening part of the liquid inlet pipe is provided with a sealing cover, so that foreign matters or bacteria are prevented from entering the liquid inlet channel to pollute the flushing liquid.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention.

Description of reference numerals:

1-a needle head; 2-a needle cylinder; 3-a needle body; 4-needle seat; 5-a liquid inlet pipe; 6-a one-way valve; 7-sealing cover; 8-sealing the opening; 9-a handle; 10-lengthening the pipe; 11-90 degree joints.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the above description of the present invention, it should be noted that the terms "one side" and "the other side" are used for indicating the position or the positional relationship based on the position or the positional relationship shown in the drawings, or the position or the positional relationship which is usually placed when the product of the present invention is used, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Further, the term "identical" and the like do not mean that the components are absolutely required to be identical, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.

The first embodiment is as follows:

as shown in fig. 1 to 2, the lacrimal passage flushing needle of the present embodiment comprises a needle head 1 and a needle cylinder 2, the needle head comprises a needle body 3 and a needle seat 4 integrally formed with the needle body, the other end of the needle seat is connected with the needle cylinder through taper or screw thread, so that the inner cavity of the needle cylinder is communicated with a needle channel, so as to realize the flow of flushing fluid between the needle cylinder, the needle seat and the needle head, in particular, a fluid inlet pipe 5 is arranged on the needle seat, the fluid inlet pipe is provided with a fluid inlet channel, the fluid inlet channel is communicated with the inner cavity of the needle seat and has a diameter larger than that of the needle head, so as to enable the flushing fluid to flow rapidly and accelerate the suction efficiency, meanwhile, a check valve 6 is arranged on the fluid inlet channel, the check valve can prevent the flushing fluid in the inner cavity of the needle seat from overflowing outwards, thereby, specifically, be provided with seal 8 at the oral area of feed liquor pipe, the external diameter of seal and the internal diameter phase-match of sealed lid, when not using, sealed lid closes on the seal, during the use, only need take off sealed lid can, it is very convenient to operate, for convenient operation, this embodiment is provided with the handle of gripping 9 in the below of cylinder, can make the operation more laborsaving.

The inlet channel should be as large as possible, but may cause problems, such as mismatch with the mouth of the flushing liquid container, or inconvenient storage, etc., so that the diameter of the inlet channel cannot be too large, and the ratio of the diameter of the inlet channel to the diameter of the needle is considered most suitable to be 2-6 by years of combined clinical tests of the inventor.

As the improvement of this embodiment, the needle body includes anterior segment and back end, and anterior segment and back end are contained angle 110 and give first place to 125 degrees settings, do benefit to with human tear way phase-match, improve mobility and security, simultaneously, all be provided with the length scale line on anterior segment and back end, can know the entering depth, use safelyr.

As an improvement of the embodiment, the end part of the needle body is spherical, so that the needle body is prevented from puncturing the lacrimal passage through the sharp point.

As a modification of this embodiment, the length of the front section is 2-5 mm and the length of the rear section is 5-7 mm.

Example two:

under the general condition, the feed liquor pipe design is in the footpath of needle file, and there is certain distance with the needle point, therefore, different from the first embodiment, as shown in fig. 3, this embodiment still includes extension pipe 10, and set up extension pipe and needle body anterior segment direction unanimity, the direction syntropy promptly, make things convenient for extension pipe and needle body to get into the flush fluid container together and inhale the operation, increased adaptability, avoid some shorter container problem that can not use, and simultaneously, the extension pipe of this embodiment is a cylindrical straight tube, its one end passes through 90 degrees and connects 11 and feed liquor union coupling, the other end can be dismantled with sealed lid and be connected, can seal the protection after using.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. Tear way washes needle, including syringe needle, cylinder, the syringe needle includes the needle body and the needle file that sets up with the needle body is integrative, the needle file other end can be dismantled with the cylinder and be connected its characterized in that: be provided with a feed liquor pipe on the needle file, the feed liquor pipe be provided with needle file inner chamber intercommunication, just than the inlet channel that the syringe needle diameter is big, be provided with the check valve that can prevent needle file inner chamber flush fluid toward outer overflowing on the inlet channel, the oral area of feed liquor pipe is provided with the seal opening, the seal opening lid has closed sealed lid, the below of cylinder is provided with the handle of gripping.

2. The lacrimal irrigation needle of claim 1, wherein: the ratio of the diameter of the liquid inlet channel to the diameter of the needle head is 2-6.

3. The lacrimal irrigation needle of claim 1, wherein: the needle body comprises a front section and a rear section which is arranged at an included angle of 110 degrees and 125 degrees with the front section, and length scribed lines are arranged on the front section and the rear section.

4. The lacrimal irrigation needle of claim 1, wherein: the end part of the needle body is spherical.

5. The lacrimal irrigation needle of claim 3, wherein: the length of the front section is 2-5 mm, and the length of the rear section is 5-7 mm.

6. The lacrimal irrigation needle of claim 1, wherein: the needle body is characterized by further comprising an extension pipe consistent with the front section of the needle body in direction, the extension pipe is a cylindrical straight pipe, one end of the extension pipe is connected with the liquid inlet pipe sealing opening through a 90-degree joint, and the other end of the extension pipe is detachably connected with the sealing cover.