CN108815644B

CN108815644B - Nutrition syringe cap

Info

Publication number: CN108815644B
Application number: CN201810659005.3A
Authority: CN
Inventors: 陆军; 赵丽杰; 张传雷; 倪琳
Original assignee: Jiangsu Caina Medical Technology Co ltd
Current assignee: Jiangsu Caina Medical Technology Co ltd
Priority date: 2018-06-25
Filing date: 2018-06-25
Publication date: 2021-01-15
Anticipated expiration: 2038-06-25
Also published as: CN108815644A

Abstract

The invention discloses a nutrition syringe cap which is formed by assembling a shell and an inner core, wherein the inner core comprises a syringe plug, a ring wall is integrally arranged outside the syringe plug, a cutting groove is arranged on the wall surface of the ring wall, a profiling cutting groove is additionally arranged on a thread, and the nutrition syringe cap has two forms of an inclined window and a vertical window, the inner surface of the ring wall is provided with the thread, the ring wall is provided with a ring groove, and the ring groove is provided with external engagement teeth; the shell is in a circular shell shape with openings at two ends, a step-shaped clamping ring matched with the annular groove is arranged at the opening at one end, inner engaging teeth matched with the outer engaging teeth are arranged on the step-shaped clamping ring, and the outer surface of the shell is in a spherical table shape and/or a frustum shape. The threaded outward-opening window is convenient for the injector to press down and push open double-threaded teeth during installation, and reduces the fatigue degree of medical workers; and the principle that the gravity center is downward is ingeniously utilized, no matter the syringe cap is thrown onto a table top at that angle, the inner core of the syringe cap faces upwards, so that a nursing worker can conveniently and quickly insert the syringe, and the fatigue degree of the syringe which is positioned upwards again is reduced.

Description

Nutrition syringe cap

Technical Field

The present invention relates to syringe caps.

Background

Parenteral nutrition plays a key role in the rescue of critically ill patients, but since the implementation of parenteral nutrition is not standardized all the time because of various conditions, the key departments of many large hospitals and hospitals do not implement standardized intravenous nutrition, and the parenteral nutrition is generally advocated to 'all in one' (all are mixed together), namely all nutrients (mainly fat emulsion, amino acid and glucose) are firstly fused together and then infused into the bodies of patients.

Medical personnel can put the syringe cylinder and the block of a batch of needs equipment to the assembly table when preparing for-use nutrition syringe, put a batch of block to the desktop when medical personnel, the block falls randomly on the desktop, some block openings up, some block openings down, opening up's block is not convenient for medical personnel to insert nutrition syringe, medical personnel are tired easily when a lot of syringes are assembled to needs, working strength is big.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a syringe cap which is convenient for pressing down a syringe during mounting and can easily jack the teeth on the double threads, and a threaded outward-opening window is convenient for pressing down and jacking the teeth on the double threads during mounting, so that a medical worker can conveniently insert a nutrition syringe and reduce the fatigue degree.

In order to achieve the purpose, the technical scheme of the invention is that the nutrition syringe cap is designed and is formed by assembling a shell and an inner core, the inner core comprises a blind hole-shaped syringe plug, a ring wall is integrally arranged outside the syringe plug, the syringe plug and the ring wall are coaxially arranged, the wall surface of the ring wall is provided with a cutting groove, the inner surface of the ring wall is provided with threads, the cutting groove is arranged at one side of a thread tooth, an annular cavity is formed between the upper end of the ring wall and the syringe plug, the outer surface of the lower end of the ring wall is provided with an annular groove, the annular surface of the annular groove is provided with external meshing teeth, and the bottom of the ring; the outer shell is in a circular shell body with openings at two ends, a step-shaped clamping ring matched with the annular groove is arranged at the opening at one end, the outer shell and the inner core are assembled through the annular groove and the step-shaped clamping ring, inner engaging teeth matched with the outer engaging teeth are arranged on the step-shaped clamping ring, and the outer surface of the outer shell is in a spherical table shape and/or a frustum shape. The bottom end of the inner core plane and the side surface of the curved surface of the outer shell basically ensure that the automatic opening faces upwards when the table falls onto a table top randomly. The screw thread increases profile modeling cutting groove, has oblique windowing and two kinds of forms of windowing perpendicularly, and the syringe pushes down when the installation of being convenient for, and the tooth on the double thread is pushed open to the very easy, because the existence of cutting the groove, the tooth of screw thread is outwards extruded, and the medical personnel of being convenient for more inserts nutrition syringe, reduces its fatigue degree. In addition, the principle that the gravity center is downward is ingeniously utilized, no matter the syringe cap is thrown onto a table at the angle, the inner core of the syringe cap faces upwards, a nursing person can conveniently and quickly insert the syringe, and the fatigue degree of the syringe which is positioned upwards again is reduced.

The further technical proposal is that the cutting groove is a spiral groove which is arranged at the upper side and/or the lower side of the tooth; the direction of the cutting groove is along the spiral line direction of the thread.

The further technical proposal is that the cutting groove is a U-shaped groove which is arranged at the left side and/or the right side of the tooth.

The further technical proposal is that the thread is double thread; the outer surface of the shell is provided with a plurality of grooves, the grooves are uniformly arranged along the outer surface of the shell, and the direction of the grooves is the same as the axial direction of the annular wall.

The invention has the advantages and beneficial effects that: the bottom end of the inner core plane and the side surface of the curved surface of the outer shell basically ensure that the automatic opening faces upwards when the table falls onto a table top randomly. The screw thread increases profile modeling cutting groove, has oblique windowing and two kinds of forms of windowing perpendicularly, and the syringe pushes down when the installation of being convenient for, and the tooth on the double thread is pushed open to the very easy, because the existence of cutting the groove, the tooth of screw thread is outwards extruded, and the medical personnel of being convenient for more inserts nutrition syringe, reduces its fatigue degree. The outer shell is connected with the inner core in a plug-in mode, and the tooth form is arranged at the joint, so that the rotation between the outer shell and the inner core after connection can be avoided. In addition, the principle that the gravity center is downward is ingeniously utilized, no matter the syringe cap is thrown onto a table at the angle, the inner core of the syringe cap faces upwards, a nursing person can conveniently and quickly insert the syringe, and the fatigue degree of the syringe which is positioned upwards again is reduced.

Drawings

FIG. 1 is a schematic view of a first embodiment of a syringe cap according to the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the present invention after connection to a syringe barrel;

FIG. 4 is an enlarged schematic view of the syringe barrel of FIG. 3;

FIG. 5 is an exploded schematic view of FIG. 1;

FIG. 6 is an exploded schematic view of FIG. 2;

FIG. 7 is an exploded view of a second embodiment of the present invention;

fig. 8 is a cross-sectional view from another perspective of fig. 7.

In the figure: 1. a housing; 2. an inner core; 3. an annular cavity; 4. an injector syringe; 5. an external thread; 6. an internal thread; 7. a syringe plug; 8. a collar; 9. a side surface; 10. an annular wall; 11. cutting the groove; 12. a conical surface; 13. an annular groove; 14. external gear teeth; 15. inner meshing teeth; 16. a groove; 17. a core bar; 18. a rubber plug.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The first embodiment is as follows:

as shown in fig. 1 to 6, the present invention is a syringe cap, the nutrition syringe cap is assembled by a shell 1 and an inner core 2, the inner core 2 includes a blind-hole-shaped syringe plug 7, a ring wall 10 is integrally arranged outside the syringe plug 7, the syringe plug 7 and the ring wall 10 are coaxially arranged, a cutting groove 11 is arranged on the wall surface of the ring wall 10, an internal thread 6 adapted to an external thread 5 at the top end of the syringe 4 is arranged on the inner surface of the ring wall 10 (the syringe structure includes the syringe 4, a core rod 17 arranged in the syringe 4, a rubber plug 18 is arranged at the top end of the core rod), the cutting groove 11 is arranged on one side of the internal thread 6, an annular cavity 3 is formed between the upper end of the ring wall 10 and the syringe plug 7, an annular groove 13 is arranged on the outer surface of the lower end of the ring wall 10, an external engaging tooth 14 is; the shell 1 is in a circular shell shape with openings at two ends, a step-shaped clamping ring 8 matched with the annular groove is arranged at the opening at one end, the shell 1 and the inner core 2 are assembled through the annular groove 13 and the step-shaped clamping ring 8, the step-shaped clamping ring 8 is provided with inner engaging teeth 15 matched with the outer engaging teeth 14, and the outer surface (namely the side surface 9) of the shell 1 is in a spherical frustum shape and/or a frustum shape. The cutting groove 11 is a spiral groove which is arranged on the upper side and/or the lower side of the tooth; the direction of the cutting grooves 11 is along the helix of the thread. The thread is double thread, specifically double-end right-handed thread, the thread pitch is 2.5mm, and the lead distance is 5.0 mm; the outer surface of the shell 1 is provided with a plurality of grooves 16, the grooves 16 are uniformly arranged along the outer surface of the shell 1, and the directions of the grooves are the same as the axial direction of the annular wall.

Example two:

the difference from the first embodiment is that, as shown in fig. 7 and 8, the cutting groove 11 is a U-shaped groove provided on the left and/or right side of the tooth.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A nutrition syringe cap is characterized in that the nutrition syringe cap is formed by assembling a shell and an inner core, the inner core comprises a blind hole-shaped syringe plug, a ring wall is integrally arranged outside the syringe plug, the syringe plug and the ring wall are coaxially arranged, the wall surface of the ring wall is provided with a cutting groove, the inner surface of the ring wall is provided with threads, the cutting groove is arranged at one side of a thread, an annular cavity is formed between the upper end of the ring wall and the syringe plug, the outer surface of the lower end of the ring wall is provided with an annular groove, the annular surface of the annular groove is provided with external meshing teeth, and the bottom of the ring wall is provided with a conical; the outer shell is in a circular shell shape with openings at two ends, a step-shaped clamping ring matched with the annular groove is arranged at the opening at one end, the outer shell and the inner core are assembled through the annular groove and the step-shaped clamping ring, inner engaging teeth matched with the outer engaging teeth are arranged on the step-shaped clamping ring, and the outer surface of the outer shell is in a spherical table shape and/or a frustum shape; the cutting groove is a spiral groove and is arranged on the upper side and/or the lower side of the thread teeth; the direction of the cutting groove is along the spiral line direction of the thread.

2. The nutritional syringe cap according to claim 1, wherein the cutting groove is a U-shaped groove provided on the left and/or right side of the thread ridge.

3. The nutritional syringe cap according to claim 1 or 2, wherein the thread is a double thread; the outer surface of the shell is provided with a plurality of grooves, the grooves are uniformly arranged along the outer surface of the shell, and the direction of the grooves is the same as the axial direction of the annular wall.