CN219332788U

CN219332788U - Novel side pushing syringe

Info

Publication number: CN219332788U
Application number: CN202222693293.9U
Authority: CN
Inventors: 谢孟针; 邓应平; 唐静
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-07-14
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses a novel side pushing syringe, which relates to the technical field of medical appliances, and has the technical scheme that: the device comprises a barrel and a push rod arranged in the barrel, wherein a sealing cover is arranged at the tail end of the barrel, and the head end of the barrel is an inlet and outlet end; the outer wall of the cylinder body is provided with scale marks, and zero scales of the scale marks are close to the inlet and outlet ends of the cylinder body; the side wall of the cylinder is provided with a chute close to the tail end of the cylinder, one end of the push rod, which faces the outlet end of the cylinder, is connected with a rubber piston, one end of the push rod, which faces the tail end of the cylinder, is transversely connected with a push seat, and one end of the push seat, which is far away from the push rod, extends out of the cylinder through the chute. The push rod of the side push syringe has short push distance, and an operator can finish the actions of extracting liquid medicine and pushing liquid medicine by one hand, so that the operation of extracting the liquid medicine and pushing the liquid medicine is more convenient.

Description

Novel side pushing syringe

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a novel side-pushing syringe.

Background

Syringes are a common medical device. Mainly using needles to withdraw or inject gas or liquid. The advent of syringes is an epoch-making revolution in the medical device field. This process of drawing, injecting a gas or liquid with a needle is called injection. The injector consists of a needle cylinder with a small hole at the head end and a matched piston core rod, and is used for injecting a small amount of liquid or the liquid into areas inaccessible to other methods or extracting the liquid or the gas from the places, wherein the liquid or the gas is sucked from the small hole at the head end of the needle cylinder when the core rod is pulled out, and the liquid or the gas is extruded when the core rod is pushed in.

Medical injectors may be used to inject, output, and aspirate a variety of fluids, typically by injecting a variety of medicaments into, or aspirating a variety of fluids from, subcutaneous, intramuscular, vascular, or other tissue organs of a human or animal.

Syringes are also often used in ophthalmic treatment. The injector used in the treatment of ophthalmic diseases is generally thin and long, and has various specifications, and a common injector with a volume of 1mL has the same push injection principle as the conventional injector, and is a push-back injector (i.e. pumping and push injection operation are realized by pushing and pulling the tail end of a piston push rod arranged in a needle cylinder of the injector). The piston push rod needs to be pushed into the bottom or completely pulled out during the injection and the extraction, so that the single-hand operation is particularly difficult for medical staff, the operation can be performed by matching both hands, or the second person is required to assist the operation, and the working efficiency of the medical staff is greatly reduced.

Accordingly, the present utility model is directed to a novel side-pushing syringe to solve the above-described problems.

Disclosure of Invention

The utility model aims to provide a novel side-pushing injector, the push rod of the side-pushing injector has short pushing distance, and an operator can finish the actions of extracting liquid medicine and pushing liquid medicine by one hand, so that the operation of extracting the liquid medicine and pushing the liquid medicine is more convenient.

The technical aim of the utility model is realized by the following technical scheme: the novel side pushing injector comprises a cylinder body and a push rod arranged in the cylinder body, wherein a sealing cover is arranged at the tail end of the cylinder body, and the head end of the cylinder body is an inlet and outlet end; the outer wall of the cylinder body is provided with scale marks, and zero scales of the scale marks are close to the inlet and outlet ends of the cylinder body; the side wall of the cylinder is provided with a chute close to the tail end of the cylinder, one end of the push rod, which faces the outlet end of the cylinder, is connected with a rubber piston, one end of the push rod, which faces the tail end of the cylinder, is transversely connected with a push seat, and one end of the push seat, which is far away from the push rod, extends out of the cylinder through the chute.

Through adopting above-mentioned technical scheme, the barrel is used for splendid attire medicine, and the closing cap seals the top, simultaneously can also control the movable range of pushing seat inside one end of barrel, and the scale mark can observe the quantity of reagent in the barrel, and the pushing seat passes the spout, is convenient for promote the pushing seat from hollow department of spout from top to drive the push rod motion, the push rod drives the rubber piston motion again, absorbs and release the medicament.

The utility model is further provided with: the total volume marked by the scale marks is 1mL.

By adopting the above technical scheme, ophthalmic injection is generally in small dose, so the volume is set to 1mL.

The utility model is further provided with: the length of the cylinder body is twice the total length of the graduation marks (namely, the distance from zero graduation of the graduation marks to 1mL graduation marks), and the length of the push rod is equal to the total length of the graduation marks.

By adopting the technical scheme, the length of the push rod is equal to the distance from 0 scale to 1mL scale of the scale mark, so that the medicament can be completely pushed out; the length of the cylinder body is twice the distance from 0 scale of the scale mark to 1mL scale, when the medicament is sucked, the pushing seat is pushed to be farthest from the head end of the cylinder body, the medicament is sucked to be 1mL, when the medicament is pushed out, the pushing seat is pushed to be closest to the head end of the cylinder body, and the rubber piston connected with the other end of the pushing rod just reaches the tail end of the cylinder body.

The utility model is further provided with: the top of the rubber piston is conical.

By adopting the technical scheme, the conical shape can be attached to the head end of the cylinder body, so that the medicament is ensured to be completely pushed out.

The utility model is further provided with: the pushing seat comprises a round plunger, a connecting rod and a thumb button, wherein the round plunger is attached to the inner wall of the cylinder body, and the connecting rod penetrates through the sliding groove to extend to the cylinder body to be connected with the thumb button.

Through adopting above-mentioned technical scheme, the plunger is laminated with the barrel inner wall, and the stability of device is higher when promoting, the difficult condition that rocks that appears, the design of thumb knot, when pushing with absorb the medicament, medical personnel can pass annular thumb knot with the thumb according to self operational aspect, catches on the thumb knot for it is easier to push with the application of force of absorbing.

In summary, the utility model has the following beneficial effects:

compared with the conventional syringe, the side-push syringe has the advantages that the push distance of the push rod of the syringe is short, and an operator can finish the actions of extracting liquid medicine and pushing liquid medicine by one hand, so that the operation of extracting liquid medicine and pushing liquid medicine is more convenient.

Drawings

FIG. 1 is a schematic plan view of the present utility model;

FIG. 2 is a schematic plan view of a chute according to the present utility model;

FIG. 3 is a schematic illustration of the structure of the push rod of the present utility model;

fig. 4 is a top view of the push seat of the present utility model.

In the figure: 1. a cylinder; 2. a chute; 3. pushing the base; 4. scale marks; 5. a sealing cover; 6. a push rod; 7. a rubber piston; 8. a round plunger; 9. thumb button; 10. and (5) connecting a rod.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

Examples: a novel side-pushing injector, as shown in figures 1-4, comprises a cylinder 1 and a push rod 6 arranged in the cylinder 1, wherein the cylinder 1A sealing cover 5 is arranged at the tail end of the cylinder body 1, and the head end of the cylinder body is an inlet and outlet end; the outer wall of the cylinder body 1 is provided with scale marks 4, the total capacity marked by the scale marks 4 is 1mL, and zero scales of the scale marks 4 are close to the inlet and outlet ends of the cylinder body 1; the length of the cylinder body 1 is twice the total length of the graduation marks 4, and the length of the push rod 6 is equal to the total length of the graduation marks 4 _。 The side wall of the cylinder body 1 is provided with a chute 2 close to the tail end of the cylinder body 1, one end of the push rod 6 facing the outlet end of the cylinder body 1 is connected with a rubber piston 7, the top of the rubber piston 7 is conical, and the rubber piston 7 has slight elastic deformation; one end of the push rod 6 facing the tail end of the cylinder body 1 is transversely connected with a push seat 3, and one end of the push seat 3 far away from the push rod 6 extends out of the cylinder body 1 through the sliding groove 2. The pushing seat 3 comprises a plunger 8, a connecting rod 10 and a thumb button 9, the plunger 8 is attached to the inner wall of the cylinder body 1, and the connecting rod 10 penetrates through the sliding groove 2 to extend to the cylinder body 1 to be connected with the thumb button 9.

Working principle: the present utility model is different from a general syringe in that the push base 3 is pushed from the side of the cylinder 1 to suck and push out the medicine. In use, the index finger and middle finger grip the barrel 1 and the thumb can be passed through the thumb button 9 of the push seat 3 to suck the medicament. The thumb can be hooked by passing through the thumb button 9, so that the force application during suction is more convenient, and the operation by one hand is easier. The movable range of the pushing seat 3 is determined by the length of the chute 2, and both the pushing rod 6 and the rubber piston 7 connected with the pushing seat 3 are affected by the same. When the pushing seat 3 is pushed to the position farthest from the head end of the cylinder body 1, the rubber piston 7 is driven to the position of the 1mL scale mark 4, and the position is the maximum capacity of the syringe, and if a large amount of medicament is not needed, part of medicament can be sucked. When ejecting the medicament, promote pushing away seat 3 to be closest to barrel 1 head end, pushing away seat 3 is located barrel 1 inside plunger 8 and barrel 1 inner wall and laminating completely, produces certain frictional force between the two when promoting for whole promotion process will be more stable, and the syringe is difficult for appearing rocking, has also promoted the security of single hand operation, and the conical laminating barrel 1 head end at rubber piston 7 top, because rubber piston 7 self has certain elastic deformation, the medicament inside barrel 1 can abundant be extruded. Meanwhile, the rubber piston 7 has a similar function with the round plunger 8, and can generate friction force with the cylinder body 1, so that the stability of the device is further maintained.

The core technical innovation idea of the utility model comes from the small-dose syringe required during ophthalmic injection, so the 1mL syringe described in the specification can be used for adjusting the size of the syringe proportionally if syringes with different specifications are needed.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims

1. A novel side-pushing injector, which is characterized in that: the novel water heater comprises a barrel (1) and a push rod (6) arranged in the barrel (1), wherein a sealing cover (5) is arranged at the tail end of the barrel (1), and the head end of the barrel (1) is an inlet and outlet end; the outer wall of the cylinder body (1) is provided with scale marks (4), and zero scales of the scale marks (4) are close to the inlet and outlet ends of the cylinder body (1); the side wall of barrel (1) is equipped with spout (2) near barrel (1) tail end, push rod (6) are connected with rubber piston (7) towards the one end of barrel (1) exit end, the one end transverse connection of push rod (6) towards barrel (1) tail end has push holder (3), the one end that push holder (3) kept away from push rod (6) extends outside barrel (1) through spout (2).

2. The novel side-pushing syringe of claim 1, wherein: the total volume marked by the scale mark (4) is 1mL.

3. The novel side-pushing syringe of claim 1, wherein: the length of the cylinder body (1) is twice the total length of the scale marks (4), and the length of the push rod (6) is equal to the total length of the scale marks (4).

4. The novel side-pushing syringe of claim 1, wherein: the top of the rubber piston (7) is conical.

5. The novel side-pushing syringe of claim 1, wherein: the pushing seat (3) comprises a round plunger (8), a connecting rod (10) and a thumb button (9), wherein the round plunger (8) is attached to the inner wall of the cylinder body (1), and the connecting rod (10) penetrates through the sliding groove (2) to extend to the cylinder body (1) to be connected with the thumb button (9).