CN213047638U

CN213047638U - A prevent mistake and inhale flute needle for ophthalmology pen type

Info

Publication number: CN213047638U
Application number: CN202020883712.3U
Authority: CN
Inventors: 李红阳; 吴艺
Original assignee: Guangdong No 2 Peoples Hospital
Current assignee: Guangdong No 2 Peoples Hospital
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-04-27
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a prevent mistake and inhale flute needle for ophthalmology pen type, including the outer tube, the outer tube includes somatic part and head, open window has been seted up at the middle part in the somatic part outside, the inside of outer tube is equipped with interior sleeve pipe, interior sleeve pipe includes thick section and thin section, the through-hole with open window looks adaptation is seted up in the outside of thick section, the junction of interior sheathed tube thick section and thin section is equipped with the spring, the top and the bottom of spring respectively with the inner chamber top of outer tube thick pipe and the top fixed connection of interior sleeve pipe thick section, the bottom mounting laminating of thick section has the fastener, the bottom of fastener has the fastener through the latch meshing, the bottom fixedly connected with of fastener presses the compression column, press the bottom of compression column to run through the inner chamber bottom of somatic. The utility model discloses an interior sleeve pipe is equipped with in outer sheathed tube inside, interior sleeve pipe includes thick section and thin section, and the through-hole with open window looks adaptation is seted up in the outside of thick section for the device can be with the interior liquid absorption of eye.

Description

A prevent mistake and inhale flute needle for ophthalmology pen type

Technical Field

The utility model relates to an ophthalmology medical instrument field, in particular to a prevent mistake and inhale flute needle for ophthalmology pen type.

Background

In the retinal surgery, a flute needle is often needed to suck the liquid in the vitreous cavity and the subretinal fluid to complete the gas-liquid exchange and suck the subretinal fluid, but the material of the flute needle head used at present is hard, or the front rubber sleeve is easy to loosen, so that the iatrogenic injury is caused if the retina is touched carelessly in the surgery;

with the progress of surgical technology, the flute needles of 23G, 25G and 27G have smaller needles, so that the efficiency of sucking liquid in the operation is relatively slow;

in order to solve the problems, a pen-type horn mouth flute needle capable of preventing accidental injuries is provided. When the flute needle is used, the head of the flute needle is made of the silica gel material, so that iatrogenic dehiscence cannot be caused when the flute needle touches the retina carelessly; in addition, the flute needle is formed by integrating silica gel in the center, so that the problem that a rubber sleeve is loosened in the using process or the instrument cleaning process is not worried about, and the operation efficiency is greatly improved due to the fact that the head part of the flute needle is designed to be a bell mouth, so that the invention is necessary for solving the problem by inventing the pen-type mistaken-sucking-preventing flute needle for the ophthalmology department.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent mistake and inhale flute needle for ophthalmology pen type to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the flute suction preventing needle for the ophthalmological pen type comprises an outer sleeve, wherein the outer sleeve comprises a body part and a head part, a needle opening is formed in the head part, an open window is formed in the middle of the outer side of the body part, an inner sleeve is arranged in the outer sleeve and comprises a thick section and a thin section, and a through hole matched with the open window is formed in the outer side of the thick section;

the junction of interior sheathed tube thick section and thin section is equipped with the spring, the top and the bottom of spring respectively with the inner chamber top of the thick pipe of outer tube and the top fixed connection of the thick section of interior sleeve pipe, the bottom mounting laminating of thick section has the fastener, the bottom of fastener has the fastener through the latch meshing, the bottom fixedly connected with of fastener presses the compression leg, the bottom of pressing the compression leg runs through the inner chamber bottom of somatic part.

Preferably, the outer sleeve is made of hard plastic, and the inner sleeve is made of silica gel.

Preferably, the inner sleeve is of an integral hollow tubular structure with a thick upper part and a thin lower part, and the top end opening of the thin section is flared.

Preferably, the body part and the inner sleeve are consistent in shape, and the open window and the circle center of the through hole are located on the same horizontal line.

Preferably, the pen cartridge, the clip member, the pressing post and the spring cooperate to form a pressing pen style ejection mechanism.

The utility model discloses a technological effect and advantage:

1. the inner sleeve is arranged in the outer sleeve, the inner sleeve comprises a thick section and a thin section, and the outer side of the thick section is provided with a through hole matched with the open window, so that the device can absorb liquid in eyes;

2. the utility model discloses a including the hollow tubular structure of thick thin down on sleeve pipe formula as an organic whole, the condition of avoiding appearing the gum cover pine in the use or cleaning appliance's in-process and taking place that the landing appears, the open-top of thin section sets up to tubaeform, increases suction, promotes the efficiency of imbibition.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the present invention.

Fig. 3 is an enlarged schematic structural view of a position a in fig. 2 according to the present invention.

In the figure: 1. an outer sleeve; 11. a body portion; 111. opening a window; 12. a head portion; 121. a needle opening; 2. an inner sleeve; 21. coarse section; 211. a through hole; 22. a thin section; 3. a pen chuck; 31. pressing the column; 32. a fastener; 33. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a prevent mistake and inhale flute needle for ophthalmology pen type as shown in fig. 1-3, including outer tube 1, outer tube 1 includes somatic part 11 and head 12, the inside of head 12 is equipped with needle mouth 121, open window 111 has been seted up at the middle part in the somatic part 11 outside, the inside of outer tube 1 is equipped with interior sleeve pipe 2, interior sleeve pipe 2 includes thick section 21 and thin section 22, the through-hole 211 with open window 111 looks adaptation is seted up to the outside of thick section 21, through the tubule of the vacuum bottle for the blood drawing of pegging graft in open window 111 and through-hole 211, the leakproofness between the interior sleeve pipe 2 of tubule and the silica gel material that is silica gel material together is good, make thick section 21 cavity inside form the negative pressure and inhale intraocular liquid through the horn mouth on thin section 22 top;

interior sleeve pipe 2's thick section 21 and thin section 22 junction are equipped with spring 33, the top and the bottom of spring 33 respectively with the inner chamber top of the thick pipe of outer tube 1 and the top fixed connection of interior sleeve pipe 2 thick section 21, the bottom mounting laminating of thick section 21 has fastener 32, there is fastener 32 in the bottom of fastener 32 through the latch meshing, the bottom fixedly connected with of fastener 32 presses post 31, press the bottom of post 31 to run through the inner chamber bottom of somatic part 11, the top of thick section 21 is blocked to spring 33, thrust is produced.

The material of outer tube 1 is the duroplasts, and the material of interior sleeve pipe 2 is the silica gel material, explains outer tube 1 and interior sleeve pipe 2's material.

Interior sleeve pipe 2 thick thin hollow tubular structure down in the integral type as an organic whole avoids appearing the gum cover pine in the use or the in-process of cleaning apparatus and takes place the condition that the landing was taken off, and the top end opening of thin section 22 sets up to tubaeform, increases suction, promotes the efficiency of imbibition.

The body 11 is in conformity with the inner sleeve 2 in shape, and the open window 111 and the center of the through hole 211 are located on the same horizontal line, further describing the form and positional relationship of the structure.

Pen type dop 3, fastener 32, press post 31 and spring 33 cooperation, form the pop-up mechanism of pressing a style for the horn mouth protrusion on thin section 22 top is outside needle mouth 121 notch, and the horn mouth on thin section 22 top forms the difference in height with the head 12 of outer tube 1, avoids the head 12 of outer tube 1 to contact the retina, thereby makes the device can avoid causing the damage to the retina.

The utility model discloses the theory of operation: firstly, the pressing column 31 is pressed, the latch at the bottom end of the clamping piece 32 enables the pen type clamping head 3 to rotate, the upright rods arranged at the top end of the pen type clamping head 3 in a staggered mode enable the clamping piece 32 and the inner sleeve 2 to move towards the needle opening 121, so that the bell mouth at the top end of the thin section 22 protrudes out of the notch of the needle opening 121, the thin tube of the vacuum bottle for blood drawing is inserted into the open window 111 and the through hole 211, and the sealing performance between the thin tube made of silica gel and the inner sleeve 2 made of silica gel is good, make the inside horn mouth that forms the negative pressure and pass through thin section 22 top of thick section 21 cavity absorb intraocular liquid, interior sleeve pipe 2 sets up to thick hollow tubular structure thin down on the integral type, avoids appearing the condition emergence that the gum cover pine takes off landing in the use or the in-process of cleaning apparatus, and the top opening of thin section 22 sets up to tubaeform, increases suction, promotes the efficiency of imbibition.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A prevent mistake and inhale flute needle for ophthalmology pen type, includes outer tube (1), its characterized in that: the outer sleeve (1) comprises a body part (11) and a head part (12), a needle opening (121) is formed in the head part (12), an open window (111) is formed in the middle of the outer side of the body part (11), an inner sleeve (2) is arranged in the outer sleeve (1), the inner sleeve (2) comprises a thick section (21) and a thin section (22), and a through hole (211) matched with the open window (111) is formed in the outer side of the thick section (21);

a spring (33) is arranged at the joint of the thick section (21) and the thin section (22) of the inner sleeve (2), the top end and the bottom end of the spring (33) are respectively fixedly connected with the top end of the inner cavity of the thick tube of the outer sleeve (1) and the top end of the thick section (21) of the inner sleeve (2), a clamping piece (32) is fixedly attached to the bottom end of the thick section (21), the clamping piece (32) is meshed with the bottom end of the clamping piece (32) through a clamping tooth, a pressing column (31) is fixedly connected to the bottom end of the clamping piece (32), and the bottom end of the pressing column (31) penetrates through the bottom end of the inner cavity of the body part (11;

the pen type clamping head (3), the clamping piece (32), the pressing column (31) and the spring (33) are matched to form an ejecting mechanism of a pressing pen type.

2. The flute stick preventing suction for an ophthalmic pen according to claim 1, wherein: the material of outer tube (1) is the duroplast, the material of interior sleeve pipe (2) is the silica gel material.

3. The flute stick preventing suction for an ophthalmic pen according to claim 1, wherein: the inner sleeve (2) is of an integrated hollow tubular structure with a thick upper part and a thin lower part, and the top end opening of the thin section (22) is horn-shaped.

4. The flute stick preventing suction for an ophthalmic pen according to claim 1, wherein: the body (11) and the inner sleeve (2) are consistent in shape, and the centers of the open window (111) and the through hole (211) are located on the same horizontal line.