CN218922969U - Threaded silicone oil takes out auxiliary device - Google Patents

Abstract

The utility model relates to the technical field of medical appliances, and provides a threaded silicone oil taking-out auxiliary device which comprises an empty cylinder, a piston rod, a piston head, a nipple and an extraction mechanism, wherein a threaded groove is formed in the inner wall of the empty cylinder, the nipple is arranged at the front end of the empty cylinder, the piston head is rotatably arranged in the empty cylinder, a spiral protrusion matched with the threaded groove is arranged on the piston head, the piston head moves and rotates in the empty cylinder, and the piston rod is arranged on one side, far away from the nipple, of the piston head. The extraction mechanism stretches into the silicone oil, the piston rod and the piston head are rotated, the piston head rotates and moves along the threads in the hollow cylinder, under the suction of negative pressure, the silicone oil enters the hollow cylinder through the extraction mechanism, the threads in the hollow cylinder are arranged, the threaded protrusions on the piston head are matched with the threaded grooves, the sealing function in the hollow cylinder is enhanced, the hollow cylinder is kept in a vacuum state, and stable constant negative pressure is realized.

Description

Threaded silicone oil takes out auxiliary device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a threaded silicone oil taking-out auxiliary device.

Background

Silicone oil is often used clinically as an intraocular filler with good results, but the silicone oil must be removed from the eye after surgery. The piston rod forming negative pressure in the syringe of the existing injector cannot be reliably and effectively positioned, so that the movement of the piston rod can either form pressurization in the syringe or form depressurization in the syringe, namely, reliable and stable constant negative pressure cannot be formed in the syringe.

Disclosure of Invention

The utility model aims to provide a threaded silicone oil taking-out auxiliary device, which solves the problems that a piston rod forming negative pressure in a syringe cylinder cannot be reliably and effectively positioned and a reliable and stable constant negative pressure cannot be formed in the syringe cylinder in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a take out auxiliary device with screw thread silicone oil, includes empty section of thick bamboo, piston rod, piston head, nipple and extraction mechanism, empty section of thick bamboo inner wall is equipped with the screw thread recess, the nipple sets up the front end of empty section of thick bamboo, the piston head rotates to be set up in the empty section of thick bamboo, be equipped with on the piston head with screw thread recess assorted spiral arch, the piston head is in remove and rotate in the empty section of thick bamboo, the piston rod sets up keep away from on the piston head one side of nipple, the piston rod stretches out empty section of thick bamboo rear end, extraction mechanism sets up on the nipple.

Further, the extraction mechanism further comprises a catheter, a needle head and a bevel, wherein the catheter is sleeved on the nipple, the needle head is arranged on the catheter, the needle head and the nipple are communicated, and the bevel is arranged on the needle head.

Further, a gate valve is arranged on the nipple.

Further, the hollow cylinder and the piston rod are made of PP materials.

Further, the hollow cylinder end is provided with a raised line, and the length of the raised line is greater than the diameter of the hollow cylinder.

Further, the hollow cylinder is transparent.

Further, the outer surface of the hollow cylinder is provided with scales.

Further, a roughened surface is provided on the catheter at an end thereof adjacent to the needle.

The above-mentioned one or more technical solutions in the embodiments of the present utility model at least have the following technical effects or advantages:

according to the threaded silicone oil taking auxiliary device provided by the embodiment of the utility model, the extraction mechanism stretches into the silicone oil, the piston rod and the piston head are rotated, so that the piston head rotates and moves along the threads in the hollow cylinder, under the suction of negative pressure, the silicone oil enters the hollow cylinder through the extraction mechanism, and the threads in the hollow cylinder are arranged, so that the thread protrusions on the piston head are matched with the thread grooves, the sealing function in the hollow cylinder is enhanced, the hollow cylinder is kept in a vacuum state, stable constant negative pressure is realized, meanwhile, the piston head is effectively positioned, the mistaken touch of the piston rod can be avoided, and the extraction risk is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an embodiment of the present utility model;

in the figure: 1. hollow cylinder 2, piston rod 3, piston head 4, nipple 5, convex strip 6, conduit 7, needle 8, gate valve 9, chamfer.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiment of the utility model provides a threaded silicone oil extraction auxiliary device, belongs to the technical field of medical instruments, and in the prior art, silicone oil is used as an intraocular filler, is often applied to clinic, and has good effect, but the postoperative silicone oil is required to be extracted from the eye. The piston rod forming negative pressure in the syringe of the existing injector cannot be reliably and effectively positioned, so that the movement of the piston rod can either form pressurization in the syringe or form depressurization in the syringe, namely, reliable and stable constant negative pressure cannot be formed in the syringe.

Based on this, how to provide a technical problem to be solved is urgent.

The technical scheme of the utility model is further elaborated by the following with reference to the drawings and specific embodiments.

Referring to fig. 1-2, an embodiment of the present utility model provides a threaded silicone oil extraction aid,

comprises a hollow cylinder 1, a piston rod 2, a piston head 3, a nipple 4 and an extraction mechanism, wherein the inner wall of the hollow cylinder 1 is provided with a thread concave 5 groove, the nipple 4 is arranged at the front end of the hollow cylinder 1, the piston head 3 is rotatably arranged in the hollow cylinder 1, and the piston head 3 is arranged on the piston head 3

The piston rod 2 is arranged on one side of the piston head 3 far away from the nipple 4, the piston rod 2 extends out of the rear end of the hollow cylinder 1, and the extraction mechanism is arranged on the nipple 4.

By adopting the technical proposal, the extracting mechanism stretches into the silicone oil, then the piston rod 2 and the piston head 3 are rotated to enable the piston head 3 to rotate and move along the thread in the hollow cylinder 1, under the suction of negative pressure,

the silicone oil enters the hollow cylinder 1 through the extraction mechanism, the screw threads in the hollow cylinder 1 are arranged, so that the piston head 3 is matched with the screw threads, the sealing function in the hollow cylinder 1 is stronger, the hollow cylinder 1 is kept in a vacuum state all the time, meanwhile, in the extraction process, even if the piston rod 2 is touched by mistake, the piston rod 2 can be reliably and effectively positioned, the hollow cylinder 1 obtains stable negative pressure, and the extraction risk is reduced.

5 in some embodiments, the extraction mechanism further comprises a catheter 6, a needle 7, and a bevel 9, the catheter 6 being sleeved with

On the nipple 4, a needle 7 is arranged on the catheter 6, the catheter 6 and the needle 7 are communicated with the nipple 4, and a bevel 9 is arranged on the needle 7.

By adopting the technical scheme, the contact area between the needle 7 and the silicone oil can be enlarged by the arrangement of the chamfer 9, the extraction efficiency is improved, and the silicone oil is extracted by the needle 7 and flows into the hollow cylinder 1 through the guide pipe 6.

0 in some embodiments, a gate valve 8 is provided on the nipple 4.

According to the technical scheme, when the hollow cylinder 1 is not used, the piston head 3 and the piston rod 2 are rotated to the front end position of the hollow cylinder 1, so that air in the hollow cylinder 1 is discharged, then the gate valve 8 on the nipple 4 is closed, the hollow cylinder 1 is kept in a negative pressure state, and when the hollow cylinder 1 is used, the needle 7 stretches into silicone oil and then the gate valve 8 on the nipple 4 can be opened, so that the silicone oil is extracted into the hollow cylinder 1 in the negative pressure state.

In some embodiments, the hollow cylinder 1 and the piston rod 2 are both made of PP material.

In some embodiments, the end of the hollow cylinder 1 is provided with a rib 5, the length of the rib 5 being greater than the diameter of the hollow cylinder 1.

By adopting the technical scheme, the convex strips 5 can be convenient for hands to prop against the two ends of the hollow cylinder 1, and the piston rod 2 can be conveniently moved.

In some embodiments, the hollow cylinder 1 is transparent.

By adopting the technical scheme, the condition of the empty cylinder 1 for extracting the silicone oil is convenient to observe.

In some embodiments, the outer surface of the hollow cylinder 1 is provided with graduations.

By adopting the technical scheme, the amount of the extracted silicone oil in the empty cylinder 1 can be accurately known.

In some embodiments, the catheter 6 is provided with a roughened surface at the end near the needle 7.

With the above technical solution, the rough surface on the catheter 6 is convenient to grasp and operate.

In one embodiment, the above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model should be included in the scope of the present utility model.

Claims (8)

1. A threaded silicone oil extraction aid, characterized in that: including empty section of thick bamboo (1), piston rod (2), piston head (3), nipple (4) and extraction mechanism, empty section of thick bamboo (1) inner wall is equipped with the screw thread recess, nipple (4) set up the front end of empty section of thick bamboo (1), piston head (3) rotate and set up in empty section of thick bamboo (1), be equipped with on piston head (3) with screw thread recess assorted spiral arch, piston head (3) are in empty section of thick bamboo (1) remove and rotate, piston rod (2) set up on piston head (3) are kept away from one side of nipple (4), piston rod (2) stretch out empty section of thick bamboo (1) rear end, extraction mechanism sets up on nipple (4).

2. A threaded silicone oil extraction aid according to claim 1, characterized in that: the extraction mechanism further comprises a guide pipe (6), a needle head (7) and a chamfer (9), wherein the guide pipe (6) is sleeved on the nipple (4), the needle head (7) is arranged on the guide pipe (6), the guide pipe (6) the needle head (7) is communicated with the nipple (4), and the chamfer (9) is arranged on the needle head (7).

3. A threaded silicone oil extraction aid according to claim 1, characterized in that: the nipple (4) is provided with a gate valve (8).

4. A threaded silicone oil extraction aid according to claim 1, characterized in that: the hollow cylinder (1) and the piston rod (2) are made of PP materials.

5. A threaded silicone oil extraction aid according to claim 1, characterized in that: the end part of the hollow cylinder (1) is provided with a raised line (5), and the length of the raised line (5) is larger than the diameter of the hollow cylinder (1).

6. A threaded silicone oil extraction aid according to claim 1, characterized in that: the hollow cylinder (1) is transparent.

7. A threaded silicone oil extraction aid according to claim 1, characterized in that: the outer surface of the hollow cylinder (1) is provided with scales.

8. A threaded silicone oil extraction aid according to claim 2, characterized in that: a rough surface is arranged on one end of the catheter (6) close to the needle (7).

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