Auxiliary injector for nursing

Abstract

The utility model discloses an auxiliary syringe for nursing. The auxiliary syringe comprises a needle tube; a needle hub; a needle cylinder and an injection rod; the needle cylinder comprises a connector, the end, away from the needle base, of the connector is fixedly connected with a cylinder, and the end, away from the connector, of the cylinder is fixedly connected with a baffle; the outer wall of the piston is fixedly connected with a stand column, the outer wall of the stand column is fixedly connected with elastic plates, and the elastic plates are symmetrically arranged along the central axis of the stand column. The utility model relates to the field of injectors. The syringe is provided with the baffle ring, the stand column, the elastic plates and the limiting buckle, the dredging hole in the baffle ring ensures normal passing of fluid, the diameter of the baffle hole is slightly larger than the longest straight line in the cross section of the stand column and smaller than the distance between the end points of the free ends of the two elastic plates, and the problem that some people use the used syringe to extract medicine for secondary injection is solved; therefore, secondary pollution to the patient is avoided, the injection health of the patient is ensured to a certain extent, and the patient is more relieved.

Description

Technical Field

[0001] The utility model relates to the field of syringes, in particular to an auxiliary syringe for nursing. Background Art

[0002] The syringe is a common medical device. As early as the 15th century, the Italian Catinel proposed the principle of the syringe. The needle is mainly used to extract or inject gas or liquid. The syringe can also be used for medical equipment, containers, such as some scientific instruments in chromatography to inject through the rubber diaphragm.

[0003] However, although the prior art has many technical advantages, it has the disadvantage that, when using a traditional nursing syringe, due to the need to ensure hygiene, disposable sterile syringes are adopted. However, there are some people who are greedy or careless and use used syringes to extract drugs for secondary injections. This behavior may contaminate the syringe, which may easily cause secondary contamination to the patient, and in serious cases may endanger the patient's health. Utility Model Content

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: an auxiliary syringe for nursing, comprising:

[0005] Needle;

[0006] A needle seat, the outer wall of which is fixedly connected to the inner wall of the needle tube;

[0007] A syringe, the outer wall of which is slidably connected to the inner wall of the needle seat;

[0008] An injection rod, the outer wall of which is slidably connected to the inner wall of the syringe;

[0009] The syringe comprises a connector, one end of the connector away from the needle seat is fixedly connected to a barrel, and one end of the barrel away from the connector is fixedly connected to a baffle;

[0010] The injection rod includes a piston, a push rod is fixedly connected to the outer wall of the piston, a finger pressure plate is fixedly connected to the end of the push rod away from the piston, a limit buckle is arranged on the outside of the push rod, and the inner wall of the limit buckle contacts the outer wall of the push rod, the outer wall of the piston is fixedly connected to a column, the outer wall of the column is fixedly connected to an elastic plate, and the elastic plate is symmetrically arranged along the central axis of the column.

[0011] Preferably, the outer wall of the connector is slidably connected to the outer wall of the needle seat, the inner wall of the connector is fixedly connected with a baffle ring, a dredging hole is opened in the wall of the baffle ring, the inner wall of the baffle ring contacts the column and the elastic plate through the baffle hole, and the baffle hole is opened in the wall of the baffle ring, the outer wall of the cylinder is fixedly connected with a scale bar, and the scale bar is linearly arrayed along the axial direction of the cylinder, the inner wall of the cylinder is slidably connected to the outer wall of the piston, the inner wall of the cylinder is slidably connected to the outer wall of the push rod, and the outer wall of the baffle is fixedly connected with a first anti-slip strip.

[0012] Preferably, the outer wall of the piston contacts the outer wall of the baffle ring, a second anti-slip strip is provided in the wall of the finger pressure plate, and the second anti-slip strip is symmetrically arranged along the central axis of the finger pressure plate, the outer wall of the limit buckle contacts the outer wall of the finger pressure plate, and the outer wall of the limit buckle contacts the outer wall of the baffle.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model sets a retaining ring, a column, an elastic plate and a limiting buckle. The dredging hole on the retaining ring ensures the normal passage of the fluid. The diameter of the retaining hole is slightly larger than the longest straight line inside the cross section of the column and smaller than the end point spacing of the free ends of the two elastic plates. The column and the elastic plate are pushed into the connector. When the retaining ring is released, the raised part of the elastic plate is pressed down by the retaining hole and resets when passing through. At this time, the column cannot be pulled out, which solves the problem that some people use a used syringe to extract medicine for secondary injection, thereby avoiding secondary contamination to the patient, ensuring the patient's injection health to a certain extent, and making the patient more at ease.

[0015] 2. The utility model provides a first anti-slip strip and a second anti-slip strip. The needle is inserted into the designated position. The thumb contacts the second anti-slip strip. The index finger and the middle finger hook the baffle and contact the first anti-slip strip. The anti-slip strip prevents errors in the injection caused by liquids such as sweat on the fingers, thereby achieving the purpose of anti-slip and stable injection of the fingers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is a partial exploded sectional view of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model at A;

[0019] Figure 4 It is a schematic diagram of the structure of the utility model at B;

[0020] Figure 5 It is a schematic diagram of the back structure of the utility model;

[0021] Figure 6This is a schematic diagram of the back structure of the injection rod of the utility model;

[0022] Figure 7 It is a structural schematic diagram of C of the utility model.

[0023] In the figure: 1, needle tube; 2, needle seat; 3, syringe; 31, connector; 311, retaining ring; 3111, dredging hole; 3112, retaining hole; 32, cylinder; 321, scale bar; 33, baffle; 331, first anti-slip strip; 4, injection rod; 41, piston; 42, push rod; 43, finger pressure plate; 431, second anti-slip strip; 44, limit buckle; 45, column; 46, elastic plate. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0025] Example: See Figure 1 - Figure 7 The utility model provides a technical solution: an auxiliary syringe for nursing, comprising:

[0026] Needle tube 1; needle seat 2, the outer wall of needle seat 2 is fixedly connected to the inner wall of needle tube 1; syringe 3, the outer wall of syringe 3 is slidably connected to the inner wall of needle seat 2; injection rod 4, the outer wall of injection rod 4 is slidably connected to the inner wall of syringe 3;

[0027] The syringe 3 comprises a connector 31, an end of the connector 31 away from the needle seat 2 is fixedly connected to a barrel 32, and an end of the barrel 32 away from the connector 31 is fixedly connected to a baffle 33;

[0028] The injection rod 4 includes a piston 41, the outer wall of the piston 41 is fixedly connected to a push rod 42, the end of the push rod 42 away from the piston 41 is fixedly connected to a finger pressure plate 43, a limit buckle 44 is arranged on the outside of the push rod 42, and the inner wall of the limit buckle 44 is in contact with the outer wall of the push rod 42, the outer wall of the piston 41 is fixedly connected to a column 45, the outer wall of the column 45 is fixedly connected to an elastic plate 46, and the elastic plate 46 is symmetrically arranged along the central axis of the column 45.

[0029] The outer wall of the connector 31 is slidably connected to the outer wall of the needle seat 2, the inner wall of the connector 31 is fixedly connected with a retaining ring 311, a dredging hole 3111 is opened in the wall of the retaining ring 311, the inner wall of the retaining ring 311 is in contact with the column 45 and the elastic plate 46 through the retaining hole 3112, and the retaining hole 3112 is opened in the wall of the retaining ring 311, the outer wall of the cylinder 32 is fixedly connected with a scale bar 321, and the scale bar 321 is linearly arrayed along the axial direction of the cylinder 32, the inner wall of the cylinder 32 is slidably connected to the outer wall of the piston 41, the inner wall of the cylinder 32 is slidably connected to the outer wall of the push rod 42, and the outer wall of the baffle 33 is fixedly connected with a first anti-slip strip 331.

[0030] The outer wall of the piston 41 contacts the outer wall of the retaining ring 311, a second anti-slip strip 431 is provided in the wall of the finger pressure plate 43, and the second anti-slip strip 431 is symmetrically arranged along the central axis of the finger pressure plate 43, the outer wall of the limit buckle 44 contacts the outer wall of the finger pressure plate 43, and the outer wall of the limit buckle 44 contacts the outer wall of the retaining plate 33. Working principle:

[0031] When in use, take out the syringe from the sterile disinfection bag, pull off the protective cover on the needle tube 1 as shown in the main figure, slide the needle seat 2 on the connecting head 31 close to the barrel 32, and release it when tightening. At this time, the needle tube 1 and the needle seat 2 are fixed on the connecting head 31 of the syringe 3, and the needle is inserted into the medicine. Under the action of the sliding connection, the push rod 42 is pumped through the finger pressure plate 43 to move the piston 41 away from the connecting head 31. At this time, the medicine enters the syringe, and the tip of the needle tube 1 is upward, pushing the finger pressure plate 43 to expel the air.

[0032] When performing an injection, first separate the limit buckle 44 from the injection rod 4. The limit buckle 44 has a certain toughness and can rebound. It can be taken out by gently prying it apart. After taking out the limit buckle 44, insert the needle tube 1 into the specified position, the thumb contacts the second anti-slip strip 431, the index finger and the middle finger hook the baffle 33 and contact the first anti-slip strip 331, the anti-slip strip prevents the fingers from having sweat and other liquids that cause injection errors, the dredging hole 3111 on the baffle ring 311 ensures the normal passage of the fluid, the diameter of the baffle hole 3112 is slightly larger than the longest straight line inside the cross-section of the column 45, and is smaller than the end point spacing of the free ends of the two elastic plates 46, the column 45 and the elastic plate 46 are pushed into the connector 31, and the part of the elastic plate 46 that is lifted up when the baffle ring 311 is released is pressed down by the baffle hole 3112, and resets when passing through. At this time, the column 45 cannot be pulled out, thereby completing the self-destruction of the syringe to ensure its disposable use, and the scale bar 321 is used to assist in controlling the injection measurement.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A nursing auxiliary syringe, characterized in that: include: Needle tube (1); A needle seat (2), the outer wall of the needle seat (2) being fixedly connected to the inner wall of the needle tube (1); A syringe (3), the outer wall of the syringe (3) being slidably connected to the inner wall of the needle seat (2); An injection rod (4), the outer wall of the injection rod (4) being slidably connected to the inner wall of the syringe (3); The syringe (3) comprises a connector (31), one end of the connector (31) away from the needle seat (2) is fixedly connected to a barrel (32), and one end of the barrel (32) away from the connector (31) is fixedly connected to a baffle (33); The injection rod (4) comprises a piston (41), the outer wall of the piston (41) is fixedly connected to a push rod (42), one end of the push rod (42) away from the piston (41) is fixedly connected to a finger pressure plate (43), a limit buckle (44) is arranged outside the push rod (42), and the inner wall of the limit buckle (44) contacts the outer wall of the push rod (42), the outer wall of the piston (41) is fixedly connected to a column (45), the outer wall of the column (45) is fixedly connected to an elastic plate (46), and the elastic plate (46) is symmetrically arranged along the central axis of the column (45).

2. The auxiliary syringe for nursing use according to claim 1, characterized in that: The outer wall of the connector (31) is slidably connected to the outer wall of the needle seat (2); the inner wall of the connector (31) is fixedly connected to a retaining ring (311); a dredging hole (3111) is provided in the wall of the retaining ring (311); the inner wall of the retaining ring (311) contacts the column (45) and the elastic plate (46) through the retaining hole (3112); and the retaining hole (3112) is provided in the wall of the retaining ring (311); the outer wall of the cylinder (32) is fixedly connected to a scale bar (321); and the scale bar (321) is arranged in a linear array along the axis of the cylinder (32); the inner wall of the cylinder (32) is slidably connected to the outer wall of the piston (41); the inner wall of the cylinder (32) is slidably connected to the outer wall of the push rod (42); and the outer wall of the retaining plate (33) is fixedly connected to a first anti-slip strip (331).

3. The auxiliary syringe for nursing care according to claim 1, characterized in that: The outer wall of the piston (41) contacts the outer wall of the retaining ring (311); a second anti-slip strip (431) is provided in the wall of the finger pressure plate (43), and the second anti-slip strip (431) is symmetrically arranged along the central axis of the finger pressure plate (43); the outer wall of the limiting buckle (44) contacts the outer wall of the finger pressure plate (43); and the outer wall of the limiting buckle (44) contacts the outer wall of the retaining buckle (33).

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