CN219071595U - Medicine injector - Google Patents

Abstract

The utility model discloses a medicine injector, which relates to the technical field of injection tools and comprises an injection tube, wherein a piston capable of moving up and down is arranged in the injection tube, a push rod is fixed at the lower side of the piston, the lower side of the push rod extends out of the injection tube, a communication hole is formed at the upper side of the injection tube, a hose is fixed in the communication hole, a needle seat in the up-down direction is fixed at the free end of the hose, a through groove which is penetrated up and down is formed on the needle seat, a needle head is fixed in the through groove, and the lower side of the needle head extends out of the needle seat. Can hold the needle file and insert in the bottle that is equipped with contrast medium with the syringe needle, because when holding the needle file, the hand of hand needle file is nearer to bottleneck department, consequently can be convenient for insert the syringe needle in the bottle, and prick the bottle that is equipped with contrast medium for directly taking the syringe, the device can avoid pricking the finger to a certain extent, the device can put the bottle aside after pricking in the bottle through the syringe needle, then hand push away the injection tube and pull the push rod and draw the contrast medium of bottle to push away in the injection tube.

Description

Medicine injector

Technical Field

The utility model relates to the technical field of injection tools, in particular to a medicine injector.

Background

Contrast agent is chemical injected (or taken) into human tissue or organ to enhance image observation effect, density of the chemical is higher or lower than that of surrounding tissue, contrast is formed to display images by certain instruments, contrast agent is one of the most commonly used medicines in interventional radiology operation and is mainly used for displaying blood vessels and body cavities, contrast examination is widely applied clinically, contrast agent injection modes are different, most of contrast agents are injected from veins, then ct, magnetic resonance, ect, ultrasonic and other scanning examinations are carried out at different intervals, and the contrast agent is an enhancer which can effectively observe the chemical injected into human tissue or organ and has no harm to human body.

At present, most of contrast agents are injected in an intravenous injection mode, the contrast agents in the bottle are usually extracted into the injector, and then the contrast agents in the injector are injected in an intravenous injection mode, so that when the contrast agents are extracted, the contrast agents are mostly extracted and injected through the injector, the needle head is inserted into the bottle filled with the contrast agents, the injector is pulled to extract the contrast agents while holding the bottle filled with the contrast agents and holding the head end of the injector, the bottle filled with the contrast agents is very inconvenient to hold the hand for extraction because the contrast agents are sticky, and the risk of sticking to fingers is easily caused when the needle head is inserted into the bottle.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a medicine injector, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a medicine injector, includes the push away the notes intraductal piston that is equipped with of push away the notes, the piston downside is fixed with the push rod, the push rod downside stretches out the push away the notes intraductal intercommunicating pore that has been seted up of push away, intercommunicating pore internal fixation has the hose, the free end of hose is fixed with the needle file of upper and lower direction, the logical groove that link up from top to bottom has been seted up on the needle file, logical inslot is fixed with the syringe needle, the needle file is stretched out to the needle file downside, two spacing grooves have been seted up on the needle file, two spacing grooves are relative and all with logical groove intercommunication around, sliding connection has the dog that can reciprocate in the spacing groove, the opposite side of two dogs all can stretch into logical inslot.

Optionally, an injection hole is formed in the top of the injection tube, and a blocking block is detachably connected in the injection hole.

Optionally, two spouts have been seted up on the needle file, two spout openings are back to the back, and two spouts communicate with corresponding spacing groove respectively, are equipped with the ejector pad that can reciprocate in the spout, and the opposite side of two ejector pads is fixed with a sleeve, and the syringe needle downside can stretch out sleeve bottom.

Optionally, the dog downside is fixed with the connecting block, and rectangular channel has been seted up to the connecting block downside, and the ejector pad up end is the inclined plane, and eight is personally submitted to two inclined planes, and two ejector pads can stretch into respectively in the corresponding rectangular channel, and two inclined planes can contact with the connecting block that corresponds respectively.

Alternatively, the opposite sides of the two stop blocks are respectively connected with the needle seat through a first spring, and the lower side of the needle seat is connected with the bottom of the sleeve through a second spring.

Optionally, the spout is last to be linked together has the slot, has seted up T type groove on the ejector pad, but T type inslot is equipped with back and forth movement's T type piece, and two opposite sides of T type piece can insert respectively in the slot that corresponds, and two opposite sides of T type piece are connected with the ejector pad through the third spring respectively.

(III) beneficial effects

The utility model provides a medicine injector, which has the following beneficial effects:

this medicine injector, through pushing away the cooperation setting between notes pipe, the piston, the push rod, the hose, needle file and syringe needle, can hold in the needle file inserts the bottle that is equipped with contrast medium with the syringe needle, because when holding the needle file, the hand of hand needle file is nearer apart from bottleneck department, consequently can be convenient for insert the syringe needle in the bottle, and prick the bottle that is equipped with contrast medium for directly taking the syringe, the device can avoid pricking the finger to a certain extent, the device can put the bottle aside after pricking into the bottle through the syringe needle, then hand-held notes intraductal with the contrast medium of pushing away of bottle is drawn to the pulling push rod, can not hold the bottle always at this in-process, can concentrate on pulling the push rod and draw contrast medium, more convenience.

Drawings

FIG. 1 is an isometric view of the present utility model;

FIG. 2 is a right side cutaway isometric view of the present utility model;

fig. 3 is a right side cutaway isometric view of the hub of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

In the figure: 1. a bolus tube; 2. a piston; 3. a push rod; 4. a hose; 5. a needle stand; 6. a through groove; 7. a needle; 8. a limit groove; 9. a stop block; 10. blocking; 11. a pushing block; 12. a sleeve; 13. a connecting block; 14. rectangular grooves; 15. t-shaped block.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a medicine injector, including push tube 1, be equipped with piston 2 that can reciprocate in push tube 1, piston 2 downside is fixed with push rod 3, push rod 3 downside stretches out push tube 1, the upper side of push tube 1 has seted up the intercommunicating pore, be fixed with hose 4 in the intercommunicating pore, the free end of hose 4 is fixed with needle file 5 of upper and lower direction, needle through 6 has been seted up on needle file 5, through 6 is fixed with syringe needle 7 in the through 6, when drawing contrast medium, contrast medium enters into push tube 1 through needle 7, through 6, hose 4, needle 7 downside stretches out needle file 5, needle file 5 is last to be seted up two spacing groove 8, two spacing groove 8 are relative and all communicate with through 6, but the sliding connection has the dog 9 of back and forth movement, the opposite side of two dogs 9 all can stretch into through 6, can play the effect of shutoff through 6 when the opposite side of two dogs 9 is contacted;

in order to facilitate the extraction of contrast agent through the hose 4, an injection hole is arranged at the top of the injection tube 1, and a blocking block 10 is detachably connected in the injection hole;

in order to facilitate shielding of the needle 7, the needle 7 is prevented from being exposed to the outside when the needle 7 is not used, so that the needle 7 is easy to prick a person, two sliding grooves are formed in the needle seat 5, the openings of the two sliding grooves are opposite to each other, the two sliding grooves are respectively communicated with corresponding limiting grooves 8, pushing blocks 11 capable of moving up and down are arranged in the sliding grooves, a sleeve 12 is fixed on the opposite sides of the two pushing blocks 11, and the lower side of the needle 7 can extend out of the bottom of the sleeve 12;

in order to enable the two baffle blocks 9 to move oppositely after the needle 7 is inserted into the bottle, so that the through groove 6 can circulate contrast agent, a connecting block 13 is fixed on the lower side of the baffle blocks 9, a rectangular groove 14 is formed in the lower side of the connecting block 13, the upper end faces of the pushing blocks 11 are inclined planes, the two inclined planes are splayed, the two pushing blocks 11 can respectively extend into the corresponding rectangular grooves 14, and the two inclined planes can respectively contact with the corresponding connecting block 13;

in order to limit the position of the push block 11 after upward movement, a slot is communicated with the chute, a T-shaped slot is formed in the push block 11, a T-shaped block 15 capable of moving forwards and backwards is arranged in the T-shaped slot, opposite sides of the two T-shaped blocks 15 can be respectively inserted into the corresponding slots, and opposite sides of the two T-shaped blocks 15 are respectively connected with the push block 11 through a third spring;

in order to enable the two stoppers 9 to be reset and the sleeve 12 to be reset after the needle 7 is pulled out of the bottle and the push block 11 is released, the opposite sides of the two stoppers 9 are respectively connected with the needle holder 5 through the first spring, and the lower side of the needle holder 5 is connected with the bottom of the sleeve 12 through the second spring.

In the utility model, the working steps of the device are as follows:

1. in the initial state of the device, the two stop blocks 9 are inserted into the through groove 6 under the action of the first spring, opposite sides of the two stop blocks 9 are contacted with each other, so that the through groove 6 is blocked, the needle 7 is positioned in the sleeve 12, the bottom of the needle 7 does not extend out of the sleeve 12, an injection hole at the top of the injection tube 1 is blocked by the blocking block 10, and the third spring is in a compressed state;

2. when the device is used, the bottom of the sleeve 12 is abutted against the rubber plug at the bottle mouth of the bottle filled with the contrast agent by holding the needle seat 5, the needle 7 is downwards moved and inserted into the bottle by downwards pressing the needle seat 5, the push block 11 can upwards move along the chute, the push block 11 is upwards inserted into the rectangular groove 14, the inclined surface is contacted with the connecting blocks 13, the two connecting blocks 13 drive the stop blocks 9 to move oppositely, the contrast agent can be communicated in the through groove 6, and after the push block 11 moves to a certain position, the T-shaped block 15 can be inserted into the slot under the action of the third spring to play a limiting role on the sleeve 12, at the moment, the bottle filled with the contrast agent can be put aside without being always held, and the push rod 3 is pulled to drive the piston 2 to downwards move by holding the push rod 3 so as to extract the contrast agent;

3. after the extraction is finished, the needle 7 can be pulled out of the bottle, and the T-shaped block 15 is pulled, so that the T-shaped block 15 is separated from the slot, the sleeve 12 and the stop block 9 are reset, and the stop block 9 seals the through slot 6;

4. the block 10 in the injection hole is removed, and an injection needle for intravenous injection is connected to the bolus tube 1 through the injection hole, thereby performing intravenous injection.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A medication injector comprising an injection tube (1), characterized in that: the utility model discloses a syringe, including syringe (1), needle (7), needle seat (5) and needle seat (8), needle seat (5) are fixed with needle head (6), needle seat (5) are stretched out to needle seat (7) downside, two spacing groove (8) have been seted up on needle seat (5), two spacing groove (8) are relative and all communicate with logical groove (6) around, but stopper (9) of back-and-forth movement are connected with in the sliding connection in spacing groove (8), the opposite side of two stopper (9) all can stretch into logical groove (6).

2. A medication bolus as recited in claim 1, wherein: an injection hole is formed in the top of the pushing injection pipe (1), and a blocking block (10) is detachably connected in the injection hole.

3. A medication bolus as recited in claim 1, wherein: two sliding grooves are formed in the needle seat (5), openings of the two sliding grooves are back to back, the two sliding grooves are respectively communicated with corresponding limiting grooves (8), pushing blocks (11) capable of moving up and down are arranged in the sliding grooves, a sleeve (12) is fixed on the opposite sides of the two pushing blocks (11), and the lower side of the needle head (7) can extend out of the bottom of the sleeve (12).

4. A medication bolus according to claim 3, wherein: the connecting block (13) is fixed to the lower side of the stop block (9), the rectangular groove (14) is formed in the lower side of the connecting block (13), the upper end face of the push block (11) is an inclined face, the two inclined faces are splayed, the two push blocks (11) can respectively extend into the corresponding rectangular grooves (14), and the two inclined faces can respectively contact with the corresponding connecting block (13).

5. A medication bolus according to claim 3, wherein: the opposite sides of the two stop blocks (9) are respectively connected with the needle seat (5) through a first spring, and the lower side of the needle seat (5) is connected with the bottom of the sleeve (12) through a second spring.

6. A medication bolus according to claim 3, wherein: the sliding chute is communicated with a slot, a T-shaped slot is formed in the push block (11), T-shaped blocks (15) capable of moving back and forth are arranged in the T-shaped slot, opposite sides of the two T-shaped blocks (15) can be respectively inserted into the corresponding slots, and opposite sides of the two T-shaped blocks (15) are respectively connected with the push block (11) through third springs.

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