CN211486018U

CN211486018U - Adjustable injection device for anesthesia

Info

Publication number: CN211486018U
Application number: CN201922381799.4U
Authority: CN
Inventors: 栾小强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-15
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an injection device for anesthesia with adjustable, including cylinder and core bar, the syringe needle has been cup jointed to the bottom of cylinder, the protective tube has been cup jointed in the outer cylinder slip of cylinder bottom, circular through-hole has been seted up to the central point department of putting of protective tube bottom, the bottom of cylinder has linked firmly compression spring, and compression spring is located the inside of cylinder. The utility model discloses in, be provided with the protecting tube through the outer cylinder at the cylinder to through be provided with compression spring between cylinder and protecting tube, utilize compression spring can control the opportunity that the syringe needle came in and out the protecting tube on the cylinder, be convenient for inject anesthetic, and utilize stop gear control syringe needle to come in and out the length of protecting tube, can be when injecting anesthetic to the mental patient, avoid the mental patient to carry out anti-resistance and block and lead to the syringe needle to cause the injury to mental patient or doctor, improve the factor of safety of anesthetic injection.

Description

Adjustable injection device for anesthesia

Technical Field

The utility model relates to the technical field of injectors, concretely relates to injection device is used in anesthesia with adjustable.

Background

Syringes are a common tool, primarily used for injecting liquid medicine or drawing fluids, and syringes may also be used for containers, such as scientific instruments in chromatography, to inject through rubber septa, injecting gas into a blood vessel will cause air embolism, and removing air from the syringe to avoid embolism is by inverting the syringe, tapping gently, and then squeezing a little liquid before injecting into the bloodstream.

The existing injectors are different in size and mainly consist of a needle cylinder, a piston core rod and a needle head, when the mood of some mental patients in a mental disease hospital is out of control, in order to avoid the behavior of the mental patients to harm others and oneself, the mental patients need to be injected with anesthetic, and in the process of injecting the anesthetic into the mental patients, if the mental patients resist blocking, a sharp needle head on the injector can possibly injure the mental patients or doctors, and the safety coefficient is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that a needle on an injector hurts a person when a patient blocks injection, an adjustable injection device for anesthesia is provided.

The purpose of the utility model can be realized by the following technical scheme:

an adjustable injection device for anesthesia comprises a needle cylinder and a core rod, wherein a needle head is sleeved at the bottom of the needle cylinder, a protective tube is sleeved at the outer cylindrical surface of the bottom of the needle cylinder in a sliding manner, a circular through hole is formed in the central position of the bottom of the protective tube, a compression spring is fixedly connected to the bottom of the needle cylinder and located inside the needle cylinder, the core rod is connected to the inner sliding portion of the needle cylinder in a sliding manner, a piston is fixedly connected to the bottom of the core rod and connected with the needle cylinder in a sliding and embedding manner, two finger fasteners are symmetrically and fixedly connected to the outer side of the top of the needle cylinder, when the injection device is used, the bottom of the adjustable injection device for anesthesia is attached to a part to be injected, the needle cylinder is pushed, the compression spring is extruded, the needle head penetrates through the circular through hole to be inserted into the part to be injected, the finger fasteners are buckled by a forefinger and, and the opportunity that the needle head penetrates through the protective tube can be controlled according to the requirement, so that when the mental patient is blocked from injection due to unstable emotion, the mental patient or a doctor or a nurse is prevented from being injured by the sharp needle head.

The injection anesthetic machine is characterized in that a scale strip is fixedly connected to the outer cylindrical surface of the needle cylinder in the vertical direction, volume scales are printed on the scale strip, a first sliding groove is formed in the position, corresponding to the scale strip, of the top of the protective tube, and metering of injection anesthetic can be controlled according to needs by means of the scale strip.

Further lie in, sliding connection has stop gear on the outer cylinder of cylinder, stop gear includes spacing pipe, the position department that one side of spacing pipe corresponds the scale strip has seted up spout two, a plurality of V type through-holes have evenly been seted up to the bottom of spacing pipe, it is connected with the sleeve pipe to close on the outer cylinder of spacing pipe, when making to close the sleeve pipe with spacing pipe soon and be connected, stop gear's position is fixed in the outside of cylinder, and scale strip and two joints of spout, avoids sleeve pipe and spacing pipe to close soon and is connected the hour cylinder and rotate to through the position of controlling stop gear, control the syringe needle and stretch out the length of protective tube.

The first sliding groove and the second sliding groove are identical in cross section size, and the width of the cross section of the first sliding groove is larger than that of the scale strip, so that the scale strip can slide in the first sliding groove and the second sliding groove.

Further, the needle head is positioned at the inner side of the compression spring, and the outer diameter of the needle head is smaller than the inner diameter of the circular through hole, so that the needle head can move to the outside of the protective tube through the circular through hole.

The diameter of the circle corresponding to the bottom surface of the limiting pipe is larger than that of the circle corresponding to the top surface of the limiting pipe, so that the bottom of the limiting pipe is folded when the limiting pipe is screwed and connected by the sleeve pipe, and the position of the limiting mechanism can be fixed.

The utility model has the advantages that:

1. be provided with the protective tube through the outer cylinder at the cylinder to through be provided with compression spring between cylinder and protective tube, utilize compression spring can control the opportunity that the syringe needle came in and out the protective tube on the cylinder, be convenient for inject the anesthetic, and utilize stop gear control syringe needle length of coming in and out the protective tube, can be when injecting the anesthetic to the mental patient, avoid the mental patient to carry out anti-resistance and block and lead to the syringe needle to cause the injury to mental patient or doctor, improve the factor of safety of anesthetic injection.

Drawings

The present invention will be further described with reference to the accompanying drawings.

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

FIG. 2 is an overall cross-sectional view of the present invention;

FIG. 3 is an overall exploded view of the present invention;

fig. 4 is a schematic structural view of the middle limiting mechanism of the present invention.

In the figure: 1. a protective tube; 11. a circular through hole; 12. a first sliding chute; 2. a limiting mechanism; 21. a limiting pipe; 22. a sleeve; 211. a second chute; 212. a V-shaped through hole; 3. a needle cylinder; 31. a needle head; 32. a scale bar; 4. finger fasteners; 5. a core bar; 51. a piston; 6. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that 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 a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, an adjustable injection device for anesthesia comprises a needle cylinder 3 and a core rod 5, wherein the bottom of the needle cylinder 3 is sleeved with a needle 31, the outer cylindrical surface of the bottom of the needle cylinder 3 is slidably sleeved with a protective tube 1, a circular through hole 11 is arranged at the central position of the bottom of the protective tube 1, the bottom of the needle cylinder 3 is fixedly connected with a compression spring 6, the compression spring 6 is positioned inside the needle cylinder 3, the core rod 5 is slidably connected inside the needle cylinder 3, the bottom of the core rod 5 is fixedly connected with a piston 51, the piston 51 is slidably embedded and connected with the needle cylinder 3, two finger fasteners 4 are symmetrically and fixedly connected with the outer side of the top of the needle cylinder 3, when in use, the bottom of the adjustable injection device for anesthesia is attached to a part to be injected, the needle cylinder 3 is pushed, the compression spring 6 is squeezed, the needle 31 is inserted into the part to be injected through the circular through hole 11, the, the anesthetic is injected into a patient body, the protective tube 1 is arranged on the outer cylindrical surface of the needle cylinder 3, the opportunity that the needle head 31 penetrates through the protective tube 1 can be controlled according to needs, and when the mental patient is blocked from injection due to unstable emotion, the mental patient or a doctor and a nurse can be prevented from being injured by the sharp needle head 31.

The outer cylindrical surface of the syringe 3 is fixedly connected with a scale bar 32 along the vertical direction, the scale bar 32 is marked with volume scales, the position of the top of the protective tube 1 corresponding to the scale bar 32 is provided with a first sliding groove 12, the scale bar 32 is utilized to control the metering of the injection anesthetic according to requirements, the outer cylindrical surface of the syringe 3 is connected with a limiting mechanism 2 in a sliding way, the limiting mechanism 2 comprises a limiting tube 21, one side of the limiting tube 21 is provided with a second sliding groove 211 corresponding to the position of the scale bar 32, the bottom of the limiting tube 21 is uniformly provided with a plurality of V-shaped through holes 212, the outer cylindrical surface of the limiting tube 21 is connected with a sleeve 22 in a screwing way, when the sleeve 22 is connected with the limiting tube 21 in a screwing way, the position of the limiting mechanism 2 is fixed on the outer side of the syringe 3, and the scale bar 32 is clamped with the second sliding groove 211, the rotation of the syringe 3 when the sleeve 22 is connected with the limiting, to control the length of the needle 31 that extends out of the shielding tube 1.

The size of the cross section of the first sliding groove 12 is the same as that of the second sliding groove 211, the width of the cross section of the first sliding groove 12 is larger than that of the scale strip 32, the scale strip 32 can slide in the first sliding groove 12 and the second sliding groove 211, the needle head 31 is located inside the compression spring 6, the outer diameter of the needle head 31 is smaller than the inner diameter of the circular through hole 11, the needle head 31 can penetrate through the circular through hole 11 to move to the outside of the protective tube 1, the diameter of the circle corresponding to the bottom surface of the limiting tube 21 is larger than that of the circle corresponding to the top surface of the limiting tube, and the bottom of the limiting tube 21 is conveniently folded when the sleeve 22 is connected with the limiting tube 21 in a screwing mode.

The protective tube 1 and the needle cylinder 3 are made of PP materials, so that the condition during injection can be checked conveniently.

The working principle is as follows: when in use, firstly, the position of the limiting mechanism 2 is adjusted according to the physical condition of a patient and the part needing to be injected, the limiting tube 21 is separated from the sleeve 22, the limiting tube 21 is moved to a proper position, then the limiting tube 21 is screwed with the sleeve 22 again, so that the V-shaped through holes 212 can be combined, the position of the limiting tube 21 can be fixed, then the bottom of the protective tube 1 of the adjustable injection device for anesthesia is tightly attached to the part of the patient needing to be injected, then the needle cylinder 3 is pushed, so that the relative position of the needle cylinder 3 and the protective tube 1 is adjusted, thereby the needle head 31 can be inserted into the position to be injected through the circular through hole 11, the compression spring 6 contracts, then the index finger and the middle finger are buckled on the finger buckle 4, the thumb pushes the top end of the core bar 5, the metering of the injection anesthetic can be controlled by using the scale bar 32, and finally the anesthetic is injected into the body of the patient.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims

1. The utility model provides an injection apparatus for anesthesia with adjustable, includes cylinder (3) and core bar (5), its characterized in that, syringe needle (31) have been cup jointed to the bottom of cylinder (3), protective tube (1) has been cup jointed in the outer cylinder slip of cylinder (3) bottom, circular through-hole (11) have been seted up to the central point department of putting of protective tube (1) bottom, the bottom of cylinder (3) has linked firmly compression spring (6), and compression spring (6) are located the inside of cylinder (3), the inside sliding connection of cylinder (3) has core bar (5), the bottom of core bar (5) has linked firmly piston (51), and piston (51) and cylinder (3) sliding embedding are connected, the outside symmetry at cylinder (3) top has linked firmly two finger fasteners (4).

2. The adjustable injection device for anesthesia as claimed in claim 1, wherein a graduated strip (32) is fixedly connected to the outer cylindrical surface of said syringe (3) along the vertical direction, and a first sliding groove (12) is formed at the top of said protection tube (1) at a position corresponding to the graduated strip (32).

3. The adjustable injection device for anesthesia as defined in claim 1, wherein the outer cylindrical surface of the needle cylinder (3) is slidably connected with a limiting mechanism (2), the limiting mechanism (2) comprises a limiting tube (21), a second sliding groove (211) is formed in one side of the limiting tube (21) at a position corresponding to the scale bar (32), a plurality of V-shaped through holes (212) are uniformly formed in the bottom of the limiting tube (21), and the outer cylindrical surface of the limiting tube (21) is screwed with a sleeve (22).

4. An adjustable injection device for anaesthesia according to claim 2, characterised in that the cross-sections of the first and second chutes (12, 211) are of the same size and the width of the cross-section of the first chute (12) is greater than the width of the scale bar (32).

5. An adjustable injection device for anaesthesia according to claim 1, characterised in that the needle (31) is located inside the compression spring (6), the outer diameter of the needle (31) being smaller than the inner diameter of the circular through hole (11).

6. An adjustable injection device for anaesthesia according to claim 3, characterised in that the diameter of the circle corresponding to the bottom surface of the limit tube (21) is larger than the diameter of the circle corresponding to the top surface.