CN216439755U - Controllable syringe for department of anesthesia of dose - Google Patents

Abstract

The utility model discloses a dose-controllable injector for anesthesia department, which comprises an injection needle tube, wherein a connecting plate is fixedly installed on the upper end surface of the injection needle tube, an opening is formed in the upper end surface of the connecting plate, internal threads are formed in the inner wall surface of the opening, a piston is arranged in the injection needle tube, a pushing rod is fixedly installed on the upper end surface of the piston, scale marks are arranged on the outer wall surface of the pushing rod, a pushing block is fixedly installed at one end, away from the piston, of the pushing rod, a limiting tube is arranged above the injection needle tube, a limiting block is fixedly installed on the upper end surface of the limiting tube, and the limiting tube corresponds to the pushing rod in position. The utility model has the beneficial effects that: through setting up spacing pipe and stopper for the device is simple structure not only, easily operates, but also can make the device input anesthetic dose controllable through spacing pipe and stopper, avoids leading to the fact the secondary injury to the patient because of anesthetic injects into too much or too little.

Description

Controllable syringe for department of anesthesia of dose

Technical Field

The utility model relates to an injector, in particular to an injector for an anesthesia department with controllable dosage.

Background

Syringes are a common medical device. As early as the 15 th century, kathler, italian, proposed the principle of the syringe. Gas or liquid is primarily drawn or injected with a needle. The advent of syringes is an epoch-making revolution in the field of medical devices. This process of drawing, injecting gas or liquid with a needle is called injection. The injector consists of a syringe with a small hole at the front end and a matched piston core rod, and is used for injecting a small amount of liquid or extracting the liquid or the liquid from the inaccessible area by other methods, wherein the liquid or gas is sucked from the small hole at the front end of the syringe when the core rod is pulled out, and the liquid or gas is extruded when the core rod is pushed in. At present, the amount of an existing injector for an anesthesia department is uncontrollable in the using process, so that excessive or insufficient injection of an anesthetic possibly affects nerves of a patient, insufficient injection causes incomplete local anesthesia, and pain of the patient is increased. Therefore, based on the above problems, we have designed a controllable-dose syringe for anesthesia department to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dose-controllable injector for an anesthesia department, and the injector is used for solving the problems that in the prior art, the dosage of the existing injector for the anesthesia department is uncontrollable in the using process, so that too much or too little injection of anesthetic possibly affects the nerve of a patient, too little injection of anesthetic possibly causes incomplete local anesthesia, and the pain of the patient is increased.

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a controllable syringe for department of anesthesia of dose, includes the injection needle tubing, the up end fixed mounting of injection needle tubing has the connecting plate, the opening has been seted up to the up end of connecting plate, the internal thread has been seted up to the open-ended internal face, be equipped with the piston in the injection needle tubing, the up end fixed mounting of piston has the push rod, the outer wall of push rod is equipped with the scale mark, the one end fixed mounting that the piston was kept away from to the push rod has the propelling movement piece, the top of injection needle tubing is equipped with spacing pipe, the up end fixed mounting of spacing pipe has the stopper, spacing pipe corresponds with the position of push rod each other, and the outer wall at the push rod is established to spacing pipe box, the external screw thread has been seted up to the outer wall of spacing pipe, spacing pipe passes through external screw thread fixed mounting in the opening of connecting plate up end.

Preferably, the outer diameter of the piston is matched with the inner diameter of the injection needle tube, two grooves are sequentially formed in the outer wall surface of the piston, rubber sealing rings are arranged in the two grooves, and one side, away from the piston, of each of the two rubber sealing rings is abutted to the inner wall surface of the injection needle tube.

Preferably, the lower end face of the injection needle tube is fixedly provided with a connecting tube, and the outer wall face of the connecting tube is provided with an external thread.

Preferably, the below of injection needle tubing is equipped with the connector, the connector has been seted up to the up end of connector, internal thread has been seted up in the connector, the connector corresponds each other with the position of connecting pipe, and the connector passes through the internal thread in the connecting pipe and the external screw thread connection of connecting pipe outer wall surface.

Preferably, a needle head is fixedly installed on the lower end face of the connector, and the needle head is communicated with the connector, the connecting pipe and the injection needle pipe.

Preferably, one side protection pad is laid on the upper end face of the pushing block, and the protection pad is made of rubber.

In the technical scheme, the utility model provides the following technical effects and advantages:

according to the device, the limiting tube and the limiting block are arranged, so that when the anesthetic in the injection needle tube needs to be injected quantitatively, the limiting block is rotated to move up and down along the pushing rod, the limiting block is moved to the scale of the required injection amount due to the fact that the scale marks are arranged on the outer wall surface of the pushing rod, the needle head is further inserted into the body of a patient, then the pushing block is pushed, the lower end surface of the pushing block is closely attached to the upper end surface of the limiting block, and quantitative injection can be completed.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is an exploded view of the syringe, the limiting tube and the piston of the present invention.

FIG. 3 is an exploded view of the injection needle tube and the connector of the present invention.

FIG. 4 is a front cross-sectional view of the present invention.

Description of reference numerals:

1. injecting a needle tube; 2. a connecting plate; 3. an opening; 4. a piston; 5. a push rod; 6. scale lines; 7. a pushing block; 8. a limiting pipe; 9. a limiting block; 10. a groove; 11. a rubber seal ring; 12. a connecting pipe; 13. a connector; 14. a connecting port; 15. a needle head; 16. and (6) a protective pad.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The utility model provides a dose-controllable injector for anesthesia department as shown in figures 1-4, which comprises an injection needle tube 1, wherein the upper end surface of the injection needle tube 1 is fixedly provided with a connecting plate 2, the upper end surface of the connecting plate 2 is provided with an opening 3, the inner wall surface of the opening 3 is provided with internal threads, a piston 4 is arranged in the injection needle tube 1, the upper end surface of the piston 4 is fixedly provided with a push rod 5, the outer wall surface of the push rod 5 is provided with scale marks 6, one end of the push rod 5 far away from the piston 4 is fixedly provided with a push block 7, a limit tube 8 is arranged above the injection needle tube 1, the upper end surface of the limit tube 8 is fixedly provided with a limit block 9, the positions of the limit tube 8 and the push rod 5 correspond to each other, the limit tube 8 is sleeved on the outer wall surface of the push rod 5, the outer wall surface of the limit tube 8 is provided with external threads, spacing pipe 8 passes through external screw thread fixed mounting in opening 3 of 2 up end of connecting plate, compares traditional device, and the device is not only simple structure not only made in the add of this device, easily operation, but also can make the device input anesthetic dose controllable through spacing pipe 8 and stopper 9, avoids leading to the fact the secondary damage to the patient too much or too little because of anesthetic injection.

Further, in the above technical scheme, the outer diameter of the piston 4 is matched with the inner diameter of the injection needle tube 1, two grooves 10 are sequentially formed in the outer wall surface of the piston 4, rubber sealing rings 11 are arranged in the two grooves 10, one side, away from the piston 4, of each rubber sealing ring 11 is abutted to the inner wall surface of the injection needle tube 1, so that the sealing performance of the piston 4 and the inner wall surface of the injection needle tube 1 is improved, and the phenomenon that anesthetic seeps out from the piston 4 when the device extracts or injects anesthetic is avoided.

Furthermore, in the above technical solution, the lower end surface of the injection needle tube 1 is fixedly installed with a connecting tube 12, the outer wall surface of the connecting pipe 12 is provided with external threads, a connector 13 is arranged below the injection needle tube 1, a connecting port 14 is formed in the upper end face of the connecting head 13, internal threads are formed in the connecting port 14, the positions of the connecting head 13 and the connecting pipe 12 correspond to each other, and the connector 13 is in threaded connection with the external thread on the outer wall surface of the connecting pipe 12 through the internal thread in the connecting port 14, so that the connector 13 is convenient to disassemble and assemble, the connector 13 is more flexible to use, the lower terminal surface fixed mounting of connector 13 has syringe needle 15, syringe needle 15 communicates with each other with connector 13, connecting pipe 12 and injection needle 1, is convenient for inject into injection needle 1 through syringe needle 15 with the anesthetic suction in, injects into patient's body through syringe needle 15 with the anesthetic.

Further, in the above technical scheme, a side protection pad 16 is laid on the upper end face of the pushing block 7, and the protection pad 16 is made of rubber, so that the finger protection effect is achieved, and the finger is prevented from being injured due to too large force when the pushing block 7 is pushed.

Principle of operation

The implementation mode is specifically as follows: when a user needs to use the device, the user firstly fixedly installs a needle head 15 on a connecting pipe 12 on the lower end face of an injection needle tube 1 through a connecting head 13, then the anesthetic in an anesthetic bottle is sucked into the injection needle tube 1 through a pumping pushing block 7, when the anesthetic in the injection needle tube 1 is sucked into a certain amount, the pumping pushing block 7 is stopped, and then a limiting block 9 is rotated, so that the limiting block 9 moves up and down along a pushing rod 5, and as the outer wall face of the pushing rod 5 is provided with scale marks 6, the limiting block 9 is moved to the scale of the required injection amount, the needle head 15 is further inserted into a patient body, and then the pushing block 7 is pushed, so that the lower end face of the pushing block 7 is closely attached to the upper end face of the limiting block 9 to complete quantitative injection.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims (6)

1. A controllable-dose syringe for anesthesia department comprises an injection needle tube (1), and is characterized in that: the injection needle tube is characterized in that a connecting plate (2) is fixedly mounted on the upper end face of the injection needle tube (1), an opening (3) is formed in the upper end face of the connecting plate (2), internal threads are formed in the inner wall face of the opening (3), a piston (4) is arranged in the injection needle tube (1), a push rod (5) is fixedly mounted on the upper end face of the piston (4), scale marks (6) are arranged on the outer wall face of the push rod (5), a push block (7) is fixedly mounted at one end, far away from the piston (4), of the push rod (5), a limiting tube (8) is arranged above the injection needle tube (1), a limiting block (9) is fixedly mounted on the upper end face of the limiting tube (8), the limiting tube (8) corresponds to the push rod (5), the limiting tube (8) is sleeved on the outer wall face of the push rod (5), and external threads are formed on the outer wall face of the limiting tube (8), the limiting pipe (8) is fixedly arranged in the opening (3) on the upper end face of the connecting plate (2) through an external thread.

2. A dose-controllable anesthetic syringe as claimed in claim 1, characterized in that: the outer diameter of the piston (4) is matched with the inner diameter of the injection needle tube (1), two grooves (10) are sequentially formed in the outer wall surface of the piston (4), rubber sealing rings (11) are arranged in the grooves (10), and one side, away from the piston (4), of each rubber sealing ring (11) is abutted to the inner wall surface of the injection needle tube (1).

3. A dose-controllable anesthetic syringe as claimed in claim 1, characterized in that: the injection needle tube (1) is characterized in that a connecting tube (12) is fixedly installed on the lower end face of the injection needle tube, and external threads are formed in the outer wall face of the connecting tube (12).

4. A dose-controllable anesthetic syringe as claimed in claim 1, characterized in that: the below of injection needle tubing (1) is equipped with connector (13), connector (14) have been seted up to the up end of connector (13), the internal thread has been seted up in connector (14), the position of connector (13) and connecting pipe (12) corresponds each other, and connector (13) are through the external screw thread threaded connection of internal thread in connector (14) and connecting pipe (12) outer wall surface.

5. A dose-controllable anesthetic syringe as claimed in claim 4, characterized in that: the lower end face of the connector (13) is fixedly provided with a needle head (15), and the needle head (15) is communicated with the connector (13), the connecting pipe (12) and the injection needle tube (1).

6. A dose-controllable anesthetic syringe as claimed in claim 1, characterized in that: one side protection pad (16) is laid on the upper end face of the pushing block (7), and the protection pad (16) is made of rubber.

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