CN212214319U

CN212214319U - Syringe for anesthesia

Info

Publication number: CN212214319U
Application number: CN202020002687.3U
Authority: CN
Inventors: 杨磊; 朱新荣; 张汀仁
Original assignee: Jiangsu Meishuo Medical Technology Co ltd
Current assignee: Jiangsu Meishuo Medical Technology Co ltd
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-12-25
Anticipated expiration: 2030-01-02

Abstract

The utility model relates to an injector for anesthesia, including injection tube, injection tube grab handle, syringe needle, connector, piston rod, still include urceolus, first stop device, second stop device, spring, puncture hole. The one end and the connector of syringe needle are connected, the connector is connected with the middle bottom position of syringe barrel, the urceolus is located the syringe barrel outside, urceolus bottom intermediate position sets up the puncture hole, can let and pass with the syringe needle, the inboard bottom of urceolus sets up the spring, is located the centre of urceolus and syringe barrel. Set up the urceolus in the injection tube outside, fixed syringe prevents that the anesthesiologist from taking to hold the shakiness, leads to the position inaccuracy of injection, through setting up the first stop device in urceolus outer wall one side, accurately knows the degree of depth that the syringe needle pierces, through setting up the second stop device on the piston rod, sets for the anesthetic dose of required injection before the injection to accurate injection is carried out, the problem of the unable definite syringe needle depth of insertion and the unable accurate control injection dose of solution.

Description

Syringe for anesthesia

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an injector for anesthesia.

Background

A syringe is a common medical device that primarily uses a needle to draw or inject a gas or liquid. The injector consists of a syringe with a small hole at the front end and a piston core rod matched with the syringe, wherein 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. Clinically, patients need to be anesthetized before operation, and different parts are anesthetized, so that the injection depth and the injection dosage are different. The existing syringe for anesthesia is used, an anesthesia physician usually uses naked eyes to observe scales and inject the anesthetic while in the anesthesia operation process, the amount of anesthetic injected cannot be accurately controlled, risks are brought to a patient, the insertion depth of a needle cannot be determined, the patient suffers severe pain due to the fact that the needle is inserted too deeply, and the needle cannot reach an action part due to too shallow insertion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an injector for anesthesia is provided, which solves the problem that the insertion depth of a needle head cannot be determined and the injection dosage cannot be accurately controlled.

In order to solve the above technical problem, the injector for anesthesia of the present invention comprises an injection tube, an injection tube handle, a needle, a connector, a piston rod, an outer tube, a first position-limiting device, a second position-limiting device, a spring, and a puncture hole. One end of the needle head is connected with a connector, the connector is connected with the middle bottom position of the injection tube, the outer tube is positioned outside the injection tube, the middle position of the bottom of the outer tube is provided with a puncture hole through which the needle head can penetrate, and the bottom of the inner side of the outer tube is provided with a spring positioned between the outer tube and the injection tube;

the first limiting device comprises a first limiting rod, a hoop and a pointer, the hoop is fixed at the upper end of one side of the outer barrel, the first limiting rod penetrates through the hoop and is fixed below one side of the syringe barrel grab handle and is perpendicular to the syringe barrel grab handle, and the pointer is fixed at the lower end of the first limiting rod and is perpendicular to the first limiting rod;

the second limiting device comprises a clamping groove, a limiting plate, a second limiting rod, a second positioning bolt, a second scale plate and a second clamping groove, the second scale plate is connected to the other side of the injection tube grab handle and perpendicular to the injection tube grab handle, the clamping groove is formed in the piston rod, the limiting plate is located in the clamping groove and is the same as the internal shape of the clamping groove and slides relative to the clamping groove, the second limiting rod penetrates through the middle position where the clamping groove is vertically fixed on the limiting plate (82) and is perpendicular to the second scale plate, the side face of the clamping groove is located in the second clamping groove, and the second positioning bolt penetrates through the second clamping groove and is fixed at the upper end of the side face of the limiting plate.

The outer barrel is arranged on the outer side of the injection barrel to fix the injector, so that the situation that an anesthesiologist holds the injector unstably to cause inaccurate injection position is prevented. First stop device sets up the outer wall in urceolus one side, the second stop device sets up on the piston rod, through first stop device's setting, and the degree of depth that the syringe needle pricked is known to the accuracy, through second stop device's setting, sets for the anesthetic dose of required injection before the injection to carry out accurate dose injection.

As an improvement of the utility model, the first stop device further comprises a first scale plate, the first scale plate is arranged outside the outer barrel.

As an improvement of the utility model, the second scale plate is hinged with the injection tube grab handle.

As an improvement of the utility model, the clamp is including making half left clamp, half right clamp, half left clamp and half right clamp both ends pass through fixing bolt fixed connection, the inboard of half left clamp and half right clamp all is equipped with the arc stopper, the arc stopper is through the first positioning bolt fixed connection who runs through the clamp on half left clamp and half right clamp.

As an improvement of the utility model, all be equipped with the arc recess that agrees with mutually with the arc stopper on half clamp inside wall on a left side and the right side.

Compared with the prior art, the utility model has the advantages that 1) the outer cylinder is arranged outside the injection tube to fix the injector, thereby preventing the anaesthetist from holding the injector unstably and causing the inaccurate injection position; 2) the outer wall of one side of the outer barrel is provided with a first limiting device, so that the penetrating depth of the needle head can be accurately known, and the needle head can be fixed; 3) the piston rod is provided with a second limiting device, so that the anesthetic dosage required to be injected is set, and accurate dosage injection is carried out.

Drawings

FIG. 1 is a schematic structural view of the anesthetic syringe of the present invention;

fig. 2 is a schematic structural view of the middle clamp of the present invention;

fig. 3 is a schematic structural view of a second limiting device in the present invention;

in the figure: 1. an injection tube; 2. an injection tube grab handle; 3. a needle head; 4. a connector; 5. a piston rod; 6. an outer cylinder; 71. a first limit rod; 72. clamping a hoop; 721. a left half clamp; 722. a right half hoop; 723. fixing the bolt; 724. an arc-shaped limiting block; 725. a first positioning bolt; 726. an arc-shaped groove; 73. a pointer; 74. a first scale plate; 81. a card slot; 82. a limiting plate; 83. a second limiting rod; 84. a second positioning bolt; 85. a second scale plate; 86. a second card slot; 9. a spring; 10. and (6) puncturing the hole.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the following detailed description is made with reference to the accompanying drawings.

Example 1: referring to fig. 1 and 3, an injector for anesthesia comprises an injection tube 1, an injection tube handle 2, a needle 3, a connector 4 and a piston rod 5, wherein the needle 3 and the injection tube 1 are connected through the connector 4, the connector 4 is located at the middle bottom position of the injection tube 1, and the piston rod 5 is arranged in the injection tube 1. The injector for anesthesia also comprises an outer cylinder 6, a first limiting device, a second limiting device, a spring 9 and a puncture hole 10.

The outer cylinder 6 is positioned at the outer side of the injection cylinder 1, the injection cylinder 1 and the outer cylinder 6 slide relatively, a puncture hole 10 is formed in the middle of the bottom of the outer cylinder 6 and can allow the needle 3 to penetrate through, and the spring 9 is fixed at the bottom of the inner side of the outer cylinder 6 in a welding mode and is positioned between the outer cylinder 6 and the injection cylinder 1. The outer barrel is arranged on the outer side of the injection barrel to fix the injector, so that the situation that an anesthesiologist holds the injector unstably to cause inaccurate injection position is prevented.

The first limiting device comprises a first limiting rod 71, a clamp 72 and a pointer 73, the clamp 73 is fixed at the upper end of one side of the outer barrel 6 in a welding mode and the like, the first limiting rod 71 penetrates through the clamp 72 and is fixed below one side of the syringe grip 2 in a welding mode and the like and is perpendicular to the syringe grip 2, and the pointer 73 is fixed at the lower end of the first limiting rod 71 in a welding mode and the like and is perpendicular to the first limiting rod 71. Through setting up first stop device, the degree of depth that the syringe needle pricked is known to the accuracy to fixed syringe needle

The second limiting device comprises a clamping groove 81, a limiting plate 82, a second limiting rod 83, a second positioning bolt 84, a second scale plate 85 and a second clamping groove 86, the second scale plate 85 is fixedly connected to the other side of the injection tube grab handle 2 and is perpendicular to the injection tube grab handle 2, the clamping groove 81 is arranged on the piston rod 5, and the limiting plate 82 is located in the clamping groove 81, has the same shape as the inner part of the clamping groove 81 and slides relative to the clamping groove 81; the second limiting rod 83 penetrates through the clamping groove 81 and is vertically fixed in the middle of the limiting plate 82 in a welding mode and the like, the second limiting rod is perpendicular to the second scale plate 85, the second clamping groove 86 is formed in the side face of the clamping groove 81, and the second positioning bolt 84 penetrates through the second clamping groove 86 and is fixed at the upper end of the side face of the limiting plate 82. Through setting up second stop device, set for the anesthetic dose of required injection to carry out accurate dose injection.

Further, the first limiting device is further provided with a first scale plate 74, and the first scale plate 74 is arranged on the outer side surface of the outer cylinder 6.

Further, the second scale plate 85 is connected with the syringe handle 2 in a hinged manner, and the scale plate 85 can be rotated to the lower part of the syringe handle 2 before injection and rotated to the upper part of the syringe handle 2 when the injection metering is determined.

Further, the clamp 72 includes a left half clamp 721 and a right half clamp 722, two ends of the left half clamp 721 and the right half clamp 722 are fixedly connected by a fixing bolt 723, inner sides of the left half clamp 721 and the right half clamp 722 are both provided with an arc-shaped limiting block 724, and the arc-shaped limiting block 724 is fixedly connected to the left half clamp 721 and the right half clamp 722 by a first positioning bolt 725 penetrating through the clamp 72.

Further, arc-shaped grooves 726 matched with the arc-shaped limiting blocks 724 are formed in the inner side walls of the left half hoop 721 and the right half hoop 722, before the first limiting rod 71 is fixed, the arc-shaped limiting blocks 724 are arranged in the arc-shaped grooves 726, and when the first limiting rod 71 needs to be fixed, the first positioning bolts 725 are screwed down to attach and fix the arc-shaped limiting blocks 724 and the first limiting rod 71.

The working process is as follows: referring to fig. 1, 2, and 3, before injection, the first positioning bolt 725 is in a loose state, and the second dial plate 85 is rotated to be perpendicular to the downward direction of the syringe handle 2. The outer cylinder 6 is held, the syringe handle 2 is pressed by force, the syringe 1 moves downwards, the needle 3 passes through the puncture hole 10 and extends out of the outer cylinder 6, meanwhile, the first limiting rod 71 moves downwards to a proper position, the first positioning bolt 725 is screwed down, the first limiting rod 71 is fixed, and anesthetic is sucked into the syringe through the piston rod 5. The first locating bolt 725 is then loosened to retract the needle retraction 3 back into place.

Next, the second dial plate 85 is rotated to a direction perpendicular to the upward direction of the syringe handle 2, the precise dose of medicament to be injected is determined by moving the second stopper rod 83, the second positioning bolt 84 is tightened, and the second stopper rod 83 is fixed.

During injection, hold urceolus 6, fix the syringe for anesthesia in the position that the patient need inject, continuously apply force and press injection tube grab handle 2, make injection tube 1 move down, syringe needle 3 passes puncture hole 10 and stretches out urceolus 6, first gag lever post 71 moves down simultaneously, pointer 73 points to first scale plate 74, observe that first scale plate 74 accurately knows the degree of depth that syringe needle 3 pierces the skin, when syringe needle 3 reaches the required degree of depth of injection, stop the application of force to injection tube grab handle 2, screw up first positioning bolt 725, it is fixed with first gag lever post 71.

And then the piston rod 5 is applied with force to inject the patient until the second limiting rod 83 touches the handle 2 of the injection tube to stop, so that the injection of accurate dosage can be completed for the patient.

And finally, the needle head 3 is pulled out, and the injection is finished.

Claims

1. The utility model provides an injector for anesthesia, includes injection tube (1), injection tube grab handle (2), syringe needle (3), connector (4), piston rod (5), the one end and the connector (4) of syringe needle (3) are connected, its characterized in that is connected to connector (4) and the middle bottom position of injection tube (1): the injector for anesthesia also comprises an outer cylinder (6), a first limiting device, a second limiting device, a spring (9) and a puncture hole (10);

the outer cylinder (6) is positioned outside the injection cylinder (1), a puncture hole (10) is formed in the middle of the bottom of the outer cylinder (6) and can allow the needle (3) to penetrate through, and a spring (9) is arranged at the bottom of the inner side of the outer cylinder (6) and positioned between the outer cylinder (6) and the injection cylinder (1);

the first limiting device comprises a first limiting rod (71), a hoop (72) and a pointer (73), the hoop (72) is fixed at the upper end of one side of the outer barrel (6), the first limiting rod (71) penetrates through the hoop (72) to be fixed below one side of the injection barrel grab handle (2) and is perpendicular to the injection barrel grab handle (2), and the pointer (73) is fixed at the lower end of the first limiting rod (71) and is perpendicular to the first limiting rod (71);

the second limiting device comprises a clamping groove (81), a limiting plate (82), a second limiting rod (83), a second positioning bolt (84), a second scale plate (85) and a second clamping groove (86), the second scale plate (85) is connected with the other side of the syringe grab handle (2), and is vertical to the handle (2) of the injection tube, the clamping groove (81) is arranged on the piston rod (5), the limit plate (82) is positioned in the clamping groove (81), the shape of the inner part of the clamping groove (81) is the same as that of the inner part of the clamping groove (81), and the clamping groove (81) slide relatively, the second limiting rod (83) penetrates through the clamping groove (81) and is vertically fixed in the middle of the limiting plate (82), and is perpendicular to the second scale plate (85), the second clamping groove (86) is arranged on the side surface of the clamping groove (81), and the second positioning bolt (84) passes through the second clamping groove (86) and is fixed at the upper end of the side surface of the limiting plate (82).

2. The anesthetic syringe according to claim 1, characterized in that: the first limiting device further comprises a first scale plate (74), and the first scale plate (74) is arranged on the outer side surface of the outer barrel (6).

3. The anesthetic syringe according to claim 1, characterized in that: the second scale plate (85) is hinged with the syringe handle (2).

4. The anesthetic syringe according to claim 1, characterized in that: the clamp (72) is including making half left clamp (721), half right clamp (722), half left clamp (721) and half right clamp (722) both ends are through fixing bolt (723) fixed connection, the inboard of half left clamp (721) and half right clamp (722) all is equipped with arc stopper (724), arc stopper (724) are through running through first positioning bolt (725) fixed connection of clamp (72) on half left clamp (721) and half right clamp (722).

5. The anesthetic syringe according to claim 4, characterized in that: arc-shaped grooves (726) matched with the arc-shaped limiting blocks (724) are formed in the inner side walls of the left half hoop (721) and the right half hoop (722).