CN220572479U - Single-hand tympanogram injector - Google Patents

Abstract

The utility model discloses a single-hand tympanic syringe, comprising: the injection needle comprises an injection needle cylinder, a compression control mechanism and a push type injection mechanism, wherein one side of the injection needle cylinder is connected with a needle head, the compression control mechanism is arranged on one side of the injection needle cylinder, which is far away from the needle head, the compression control mechanism comprises an injection piston, a sealed compression cavity is formed between the injection piston and the injection needle cylinder, one side of the injection piston, which is far away from the sealed compression cavity, is rotationally connected with a movable screw rod, the outer side of the movable screw rod is provided with a needle cylinder end cover, the needle cylinder end cover is matched with the injection needle cylinder, and the push type injection mechanism is arranged in the sealed compression cavity. According to the utility model, the injection control end of the injector is moved to the lower part of the injection needle cylinder, so that the injector can be operated by one hand in the injection use process, the injection process of the injector is simplified, the single-hand injection stability of the injector is improved, and compared with the existing injector, the injector is more suitable for scenes with narrow injection space and high operation precision requirements, such as tympanogram injection and the like.

Description

Single-hand tympanogram injector

Technical Field

The utility model belongs to the technical field of syringes, and particularly relates to a single-hand tympanic syringe.

Background

The syringe is a common medical appliance, mainly uses the syringe needle to extract or inject gas or liquid, can also be used in the injection process of various medical equipment and other containers, at present common syringe mainly comprises syringe, syringe needle and piston injection pole several parts, and during the use, operating personnel is through the mode of pulling piston injection pole to extract the air in the syringe needle, makes the syringe needle be in the negative pressure state through the mode of extracting the air in the syringe needle to extract the injection liquid, in the injection process, inserts the syringe needle into injection position, later carries out the pressurized injection to the injection liquid in the syringe needle through the mode of pressing the piston injection pole.

Although most of the existing injectors are theoretically used and only need to clamp an injection syringe by using an index finger and a middle finger, and inject injection liquid by pressing a piston injection rod by using a thumb, when the injector is used for injection, as different injection liquid contents are stored in the injection syringe, the distance between the pressing end of the injection piston rod and the injection syringe is large, so that in the actual use process, in order to ensure the injection stability of the injector, an operator needs to use the other hand to support the injection syringe, and when the injector is used for injection by using one hand, the situation of unstable injection easily occurs, and thus the operation difficulty of the injector is increased and the use convenience is poor.

Accordingly, in view of the above-described problems, it is desirable to provide a single-handed tympanogram syringe.

Disclosure of Invention

The utility model aims to provide a single-hand tympanic syringe, which aims to solve the problem of poor stability of single-hand injection of the syringe.

In order to achieve the above object, an embodiment of the present utility model provides the following technical solution:

a single-handed tympanogram, comprising: an injection needle cylinder, a compression control mechanism and a push type injection mechanism;

one side of the injection needle cylinder is connected with a needle head;

the compression control mechanism is arranged on one side of the injection needle cylinder, which is far away from the needle head, and comprises an injection piston, a sealed compression cavity is formed between the injection piston and the injection needle cylinder, the sealed compression cavity is communicated with the needle head, a movable screw rod is rotationally connected to one side of the injection piston, which is far away from the sealed compression cavity, a needle cylinder end cover is arranged on the outer side of the movable screw rod, and the needle cylinder end cover is matched with the injection needle cylinder;

the pressing type injection mechanism is arranged in the sealed compression cavity and comprises an injection partition plate, a conduction injection hole is drilled in the injection partition plate, a pair of movable blocking pieces are arranged in the injection partition plate, and the movable blocking pieces are matched with the conduction injection hole.

Further, one end fixedly connected with screw handle that the removal lead screw is located outside the syringe plays rotary control's effect to the removal lead screw through the mode of drive screw handle to be convenient for carry out the removal control to injection piston through the rotatory mode of drive removal lead screw, the needle cylinder end cover internal connection has the barrel, and the barrel plays the spacing effect of accomodating to the barrel, is convenient for play the spacing effect of support to the removal lead screw through the barrel simultaneously.

Further, be equipped with the clockwork spring in the barrel, the one end and the barrel fixed connection of clockwork spring, the clockwork spring plays the effect of connecting lead screw slider and barrel, is convenient for play drive control's effect to the lead screw slider through the shrink and the expansion of clockwork spring, the one end that the barrel was kept away from to the clockwork spring is connected with the lead screw slider, the lead screw slider rotates with the clockwork spring to be connected, just lead screw slider and removal lead screw threaded connection play through the lead screw slider to the removal lead screw and support spacing and rotary drive's effect, be convenient for carry out removal control to the removal lead screw through carrying out driven mode to the lead screw slider.

Further, one side that a pair of remove the shutoff piece deviates from all is equipped with the control inflator, and the control inflator plays accomodate with removing spacing effect to remove the shutoff piece, is convenient for carry out reset control to remove the shutoff piece through the mode of carrying gas in to the control inflator to be convenient for play control action to the conduction state that switches on the injection hole, be connected with the shutoff spring between removal shutoff piece and the control inflator, the shutoff spring plays the effect of connecting removal shutoff piece and control inflator, plays the effect that supports the reset to removing the shutoff piece through the shrink of shutoff spring and reset.

Further, one side of the control air cylinder far away from the blocking spring is connected with a pair of guide air pipes, the guide air pipes play a role in communicating the compressed air cylinders with the control air cylinders, and gas in the compressed air cylinders is conveniently conveyed into the control air cylinders under the action of the guide air pipes, so that mobile control is conveniently carried out on mobile blocking pieces, one end of the guide air pipes far away from the control air cylinders is connected with the compressed air cylinders, and the compressed air cylinders play a role in storing and compressing control on the control gas.

Further, be equipped with injection button in the compression inflator, carry out compression to the gas in the compression inflator through the operation of control injection button, be connected with reset spring between injection button and the compression inflator, reset spring plays the effect of connecting injection button and compression inflator, plays the effect that supports the reset to injection button through reset spring's shrink and reset.

Compared with the prior art, the utility model has the following advantages:

according to the utility model, the injection control end of the injector is moved to the lower part of the injection needle cylinder, so that the injector can be operated by one hand in the injection use process, the injection process of the injector is simplified, and the single-hand injection stability of the injector is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front cross-sectional view of a single-handed tympanometry syringe according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the structure of FIG. 1 at A;

FIG. 3 is a schematic view of the structure of FIG. 1 at B;

FIG. 4 is a top cross-sectional view of a single-handed tympanometry syringe according to an embodiment of the present utility model;

FIG. 5 is a schematic view showing a closed state of the push type injection mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic view of an injection state of a push type injection mechanism according to an embodiment of the present utility model;

fig. 7 is a perspective view of a single-handed tympanometry syringe according to an embodiment of the present utility model.

In the figure: 1. syringe, 101, needle, 2, compression control mechanism, 201, injection piston, 202, moving screw, 203, syringe end cap, 204, screw stem, 205, barrel, 206, spring, 207, screw slide, 3, push injection mechanism, 301, injection spacer, 302, conduction injection hole, 303, moving block, 304, control cylinder, 305, block spring, 306, pilot gas tube, 307, compression cylinder, 308, injection button, 309, return spring.

Detailed Description

The present utility model will be described in detail below with reference to the embodiments shown in the drawings. The embodiments are not intended to limit the utility model, but structural, methodological, or functional modifications of the utility model from those skilled in the art are included within the scope of the utility model.

The utility model discloses a single-hand tympanic syringe, as shown in fig. 1-7, comprising: a syringe 1, a compression control mechanism 2 and a push type injection mechanism 3.

Referring to fig. 7, a needle 101 is connected to one side of the syringe 1, and the injection liquid in the syringe 1 is guided and conveyed through the needle 101.

Referring to fig. 1 to 2, the compression control mechanism 2 is provided on a side of the syringe 1 remote from the needle 101, and the compression control mechanism 2 controls the state of pumping and pressurizing discharge of the injection liquid in the syringe 1.

Referring to fig. 1 to 2, the compression control mechanism 2 includes an injection piston 201, and extracts or discharges the gas or the injection liquid in the injection cylinder 1 by controlling the movement of the injection piston 201.

Wherein, a sealed compression cavity is formed between the injection piston 201 and the injection syringe 1, and the sealed compression cavity is communicated with the needle 101.

Referring to fig. 1-2, a movable screw 202 is rotatably connected to a side of the injection piston 201 remote from the sealed compression chamber, and movement of the injection piston 201 is controlled by controlling movement of the movable screw 202.

Referring to fig. 1-2, a needle cylinder end cover 203 is arranged on the outer side of the movable screw 202, the needle cylinder end cover 203 is matched with the injection needle cylinder 1, the spring box 205 is supported and fixed through the needle cylinder end cover 203, and meanwhile, the needle cylinder end cover 203 plays a role in closed control of the injection needle cylinder 1.

Referring to fig. 1 to 4, one end of the moving screw 202 located outside the syringe 1 is fixedly connected with a screw handle 204, and the moving screw 202 is rotationally controlled by driving the screw handle 204, so that the injection piston 201 is conveniently rotationally controlled by driving the moving screw 202.

Referring to fig. 1-2, a spring box 205 is connected to the cylinder end cover 203, and the spring box 205 plays a role in accommodating and limiting a spring 206, and simultaneously, plays a role in supporting and limiting a moving screw 202 through the spring box 205.

Referring to fig. 1-2, a spring 206 is provided in the barrel 205, one end of the spring 206 is fixedly connected with the barrel 205, the spring 206 plays a role in connecting the screw rod slider 207 with the barrel 205, and the screw rod slider 207 is conveniently driven and controlled by contraction and expansion of the spring 206.

Referring to fig. 1-2, one end of a spring 206 far away from a spring barrel 205 is connected with a screw rod slider 207, the screw rod slider 207 is rotationally connected with the spring 206, the screw rod slider 207 is in threaded connection with a moving screw rod 202, and the screw rod slider 207 plays a role in supporting, limiting and rotationally driving the moving screw rod 202, so that the moving screw rod 202 is conveniently controlled in a manner of driving the screw rod slider 207.

Referring to fig. 1-3, the push type injection mechanism 3 is disposed in the sealed compression chamber, so that the storage and discharge states of the injection liquid in the sealed compression chamber can be controlled by the push type injection mechanism 3.

Referring to fig. 1 to 3, the push type injection mechanism 3 includes an injection spacer 301, and the injection liquid extracted from the sealed compression chamber is isolated and limited by the injection spacer 301.

Referring to fig. 1 to 3, an injection spacer 301 is provided with an injection hole 302, and injection control is performed on the injection liquid by controlling the state of conduction of the injection hole 302.

Referring to fig. 5 to 6, a pair of movable stoppers 303 are provided in the injection spacer 301, the pair of movable stoppers 303 are matched with the conductive injection holes 302, and the conductive state of the conductive injection holes 302 is controlled by the pair of movable stoppers 303, thereby facilitating the control of the blocking state of the conductive injection holes 302 by controlling the movement of the pair of movable stoppers 303.

Referring to fig. 5 to 6, a control air cylinder 304 is disposed on a side of the pair of movable plugging members 303 facing away from each other, and the control air cylinder 304 plays a role in accommodating and moving the movable plugging members 303, so that the movable plugging members 303 are conveniently reset and controlled in a manner of delivering air into the control air cylinder 304, and thus, the conduction state of the conduction injection hole 302 is conveniently controlled.

Referring to fig. 5 to 6, a blocking spring 305 is connected between the movable blocking member 303 and the control cylinder 304, the blocking spring 305 plays a role in connecting the movable blocking member 303 and the control cylinder 304, and the movable blocking member 303 is supported and reset by contraction and reset of the blocking spring 305.

Referring to fig. 5-6, a pair of guide air pipes 306 are connected to one side of the control air cylinders 304 far away from the plugging spring 305, and the guide air pipes 306 serve to communicate the compressed air cylinders 307 with the control air cylinders 304, so that the air in the compressed air cylinders 307 is conveniently conveyed into the control air cylinders 304 under the action of the guide air pipes 306, and the movable plugging piece 303 is conveniently controlled in a moving manner.

Referring to fig. 5 to 6, a pair of air guide pipes 306 are connected to a compressed air cylinder 307 at the ends far from the control air cylinder 304, and the control air is stored and compressed by the compressed air cylinder 307.

Referring to fig. 5 to 6, an injection button 308 is provided in the compressed air cylinder 307, and the gas in the compressed air cylinder 307 is compressed and transported by controlling the operation of the injection button 308.

Referring to fig. 5 to 6, a return spring 309 is connected between the injection button 308 and the compressed air tube 307, and the return spring 309 serves to connect the injection button 308 and the compressed air tube 307, and supports the injection button 308 for return by contraction and return of the return spring 309.

When the injection liquid is required to be extracted, a pair of injection buttons 308 are pressed by a thumb and an index finger, gas in a compressed air cylinder 307 is conveyed into a control air cylinder 304 under the action of a guide air pipe 306 by pressing the injection buttons 308, a pair of movable blocking pieces 303 compress and move a blocking spring 305 by conveying the gas into the control air cylinder 304, at the moment, a conducting injection hole 302 is in a conducting state, then a screw rod handle 204 is rotated by the other hand, a movable screw rod 202 drives an injection piston 201 to move under the action of the screw rod handle 204, and the injection liquid is extracted by the movement of the injection piston 201;

meanwhile, in the rotating process of the movable screw rod 202, the screw rod sliding block 207 rotates under the action of internal and external threads, and the spring 206 is driven to tighten and store energy through the rotation of the screw rod sliding block 207;

when injecting the injection liquid, the injection syringe 1 is pinched by the thumb, the index finger, the middle finger or the ring finger, so that at least one finger is pressed on the injection button 308 but not pressed down, after the needle 101 reaches a designated position, the finger position is kept motionless, the injection button 308 is pressed down with force, so that the conducting injection hole 302 is in a conducting state, when the conducting injection hole 302 is in a conducting state, the injection liquid can be injected with the needle 101 through the conducting injection hole 302, meanwhile, the screw rod slide block 207 is driven to rotate in a mode of expanding energy through the spring 206, the injection piston 201 is driven to move under the action of the internal and external threads by the moving screw rod 202, the injection pressure of the injection liquid is kept by the movement of the injection piston 201, after the injection is completed, the finger pressure is released, the injection button 308 is sprung up under the action of the reset spring 309, and the conducting injection hole 302 is blocked under the action of the moving blocking piece 303, so that the injection state of the injection liquid is relieved.

The technical scheme shows that the utility model has the following beneficial effects:

according to the utility model, the injection control end of the injector is moved to the lower part of the injection needle cylinder, so that the injector can be operated by one hand in the injection use process, the injection process of the injector is simplified, and the single-hand injection stability of the injector is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment contains only one independent technical solution, and that such description is provided for clarity only, and that the technical solutions of the embodiments may be appropriately combined to form other embodiments that will be understood by those skilled in the art.

Claims (3)

1. A single-handed tympanogram syringe, comprising:

the syringe comprises an injection syringe (1), wherein one side of the injection syringe (1) is connected with a needle head (101);

the compression control mechanism (2) is arranged on one side, far away from the needle head (101), of the injection needle cylinder (1), the compression control mechanism (2) comprises an injection piston (201), a sealed compression cavity is formed between the injection piston (201) and the injection needle cylinder (1), the sealed compression cavity is communicated with the needle head (101), a movable screw rod (202) is rotatably connected to one side, far away from the sealed compression cavity, of the injection piston (201), a needle cylinder end cover (203) is arranged on the outer side of the movable screw rod (202), and the needle cylinder end cover (203) is matched with the injection needle cylinder (1);

push type injection mechanism (3), locate in the sealed compression chamber, push type injection mechanism (3) include injection baffle (301), it has switch on injection hole (302) to open in injection baffle (301), be equipped with a pair of removal shutoff piece (303) in injection baffle (301), a pair of remove shutoff piece (303) and switch on injection hole (302) assorted, a pair of remove shutoff piece (303) one side that deviates from all is equipped with control inflator (304), be connected with shutoff spring (305) between removal shutoff piece (303) and control inflator (304), a pair of control inflator (304) one side that keeps away from shutoff spring (305) all is connected with a pair of guide trachea (306), a pair of one end that control inflator (304) were kept away from to guide trachea (306) all is connected with compression inflator (307), be equipped with injection button (308) in compression inflator (307), be connected with reset spring (309) between injection button (308) and compression inflator (307).

2. A single-handed tympanometer according to claim 1, characterized in that the end of the moving screw (202) located outside the syringe (1) is fixedly connected with a screw shank (204), and the barrel end cap (203) is connected with a barrel (205).

3. A single-handed tympanometer according to claim 2, characterized in that a spring (206) is provided in the barrel (205), one end of the spring (206) is fixedly connected with the barrel (205), one end of the spring (206) remote from the barrel (205) is connected with a screw slider (207), the screw slider (207) is rotatably connected with the spring (206), and the screw slider (207) is in threaded connection with the moving screw (202).