CN215131489U

CN215131489U - Syringe outer support of one-hand measurement suction

Info

Publication number: CN215131489U
Application number: CN202121176083.1U
Authority: CN
Inventors: 洪浩; 孙红; 洪立川
Original assignee: Second Hospital of Nanjing
Current assignee: Second Hospital of Nanjing
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-14
Anticipated expiration: 2031-05-28

Abstract

The utility model provides a syringe outer support of singlehanded measurement suction, including piston support and empty bobbin bracket, piston support sets up in the empty bobbin bracket outside, piston support is used for connecting the afterbody push pedal of syringe piston handle, empty bobbin bracket covers the periphery side of the empty bobbin of syringe and is connected with the afterbody otic placode of the empty bobbin, piston support includes that the thumb holds the dish, connecting rod and piston fixing device, empty bobbin bracket is including empty bobbin fixing device and arc connecting plate, piston fixing device passes through the connecting rod and connects the thumb and hold the dish, piston fixing device connects the afterbody push pedal, the one end of arc connecting plate sets up the afterbody otic placode that empty bobbin fixing device is used for connecting the empty bobbin, the draw-in groove has been seted up on the arc connecting plate, the equipartition is provided with a plurality of measurement recesses in the draw-in groove, be provided with on the thumb holds the dish with measurement recess complex measurement boss. The utility model has the advantages of simple and reasonable structure, the practicality is strong, and preparation low cost assembles portably, can reduce medical personnel's the operation degree of difficulty, reduces the potential safety hazard.

Description

Syringe outer support of one-hand measurement suction

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to syringe outer support of one-hand measurement suction.

Background

The use of syringes to draw aqueous humor, vitreous humor, and other intraocular fluids is a routine practice in clinical ophthalmic work. The main application scenarios are as follows: 1. the intraocular pressure is reduced by extracting partial aqueous humor after acute attack of glaucoma or after operation of vitreous body cutting; 2. considering complex eye diseases such as infectious vitis, retinitis, intraocular lymphoma and the like, the eye fluid needs to be extracted for inspection so as to further make clear diagnosis and guide subsequent treatment; 3. in the early stage of chemical injury of the eyes, aqueous humor is extracted to reduce the secondary injury.

The aqueous humor is usually pumped under a slit lamp in an ophthalmic clinic. The operation steps are as follows: 1. disinfecting and superficially anaesthetizing; 2. the eyelid opener opens the eyelid; 3. order the head of the patient to be fixed on a slit lamp head frame, and fix the front; 4. the physician holds the syringe and pierces the anterior chamber from the temporal limbus; 4. holding the needle by a doctor to keep the needle stable, bypassing the slit lamp from the forehead of the patient, holding the tail of the injector, and extracting 0.05-0.1 mL of aqueous humor; 5. slowly withdrawing the needle from the anterior chamber, and injecting the extracted aqueous humor into a sterile test tube; 6. the eye speculum is removed, and the eye is bandaged with antibiotic eye ointment.

The above operations have the following disadvantages: 1. a doctor holds the needle with one hand and sucks the eye after the other hand bypasses the eye, the action is not simple and complex, and the needle tip in the anterior chamber punctures the cornea, the iris and the crystalline lens easily in the operation process, so that the eye tissue of a patient is damaged irreversibly; 2. in the process of extracting aqueous humor by both hands of a doctor, the slit lamp cannot be controlled, the focus of the slit lamp is possibly deviated, and the needle tip stabs eye tissues; 3. in the operation process, a doctor needs to watch the slit lamp all the time, cannot accurately judge how much aqueous humor is sucked, can cause low intraocular pressure due to excessive suction, increases the risk of intraocular infection, and can not finish the detection of intraocular fluid due to insufficient suction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides an injector outer support of one-hand measurement suction, and the device simple structure is reasonable, and the equipment is swift firm, and the operation is used safely comfortable, can make things convenient for doctor one hand to accomplish injector suction operation, makes things convenient for doctor to judge the suction volume according to the sense of touch, and the practicality is strong, can effectively reduce doctor's the operation degree of difficulty, reduces the danger of injector suction.

In order to solve the technical problem, the utility model discloses a technical scheme is: the outer support of the injector for single-hand metering suction is characterized by comprising a piston support and an empty cylinder support, wherein the piston support comprises a thumb holding disc, a connecting rod, a first piston clamping disc and a second piston clamping disc, the thumb holding disc is arranged at one end of the connecting rod, the first piston clamping disc and the second piston clamping disc are sequentially arranged at the other end of the connecting rod, a gap for fixedly clamping a tail push plate on an injector piston handle is reserved between the first piston clamping disc and the second piston clamping disc, the empty cylinder support comprises an arc-shaped connecting plate and two empty cylinder fixing discs, the two empty cylinder fixing discs are arranged at one end of the arc-shaped connecting plate in parallel, the arc-shaped connecting plate covers the outer peripheral side of an empty cylinder of the injector, a gap for clamping and fixing a tail lug plate on the empty cylinder is reserved between the two empty cylinder fixing discs, and a strip-shaped clamping groove is arranged on the arc-shaped connecting plate, the thumb holding disc is provided with a metering boss which slides linearly in the strip-shaped clamping groove.

Preferably, the first piston clamping disc is provided with piston rod clamping grooves, and the two hollow cylinder fixing discs are provided with hollow cylinder clamping grooves.

Preferably, circular metering grooves are uniformly formed in the strip-shaped clamping groove, the positions of the metering grooves correspond to scale marks on an empty syringe barrel, when a doctor pulls the piston rod through the first piston clamping disc and the second piston clamping disc, the metering bosses slide in the strip-shaped clamping groove, slight vibration occurs when the metering bosses reach the metering grooves, and the doctor judges the displacement of the piston rod through vibration so as to quantify the suction amount.

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

1. the utility model has the advantages of simple and reasonable design, convenient operation, the practicality is strong, preparation low cost, can energy ization suction volume, make things convenient for doctor's one hand to accomplish the suction operation, can use widely.

2. The utility model discloses a centre gripping piston rod is connected to the piston support, connects the empty section of thick bamboo of centre gripping through empty section of thick bamboo support, makes the doctor can realize singlehanded suction well under the condition that does not influence the syringe function, reduces the operation degree of difficulty.

3. The utility model discloses a measurement recess and the contact vibration sense of touch of measurement boss remind the suction volume of operation doctor now, the mode of judging the suction volume through the range estimation scale mark when having avoided the conventional syringe that uses, avoid doctor's distraction, guarantee the stability of operative hand, reduce the risk of damaging eye tissue in operation process, the intraocular fluid of corresponding dosage of accurate extraction can reduce the possibility of taking place intraocular infection, can also reduce the pollution probability of extraction sample.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic top view of the present invention.

Fig. 2 is a front view structure diagram of the present invention.

Fig. 3 is a schematic perspective view of the present invention.

Fig. 4 is a front view of the hollow cylinder holder of the present invention.

Fig. 5 is a schematic perspective view of the hollow cylinder holder of the present invention.

Fig. 6 is a schematic structural diagram of the injector of the present invention.

Description of reference numerals:

1-holding the disc with thumb; 2-a connecting rod; 3-a first piston holding disc;

4-a second piston holding disk; 5, fixing the hollow cylinder; 6, an arc-shaped connecting plate;

7, measuring a groove; 8-bar-shaped clamping grooves; 9-piston rod position-clamping groove;

10-empty cylinder clamping groove; 11-empty cartridge; 12-tail ear plate;

13-a piston shank; 14-tail push plate; 15-metering boss.

Detailed Description

As shown in fig. 1 to 6, the utility model comprises a piston support and an empty cylinder support, wherein the piston support comprises a thumb holding disc 1, a connecting rod 2, a first piston clamping disc 3 and a second piston clamping disc 4, the thumb holding disc 1 is arranged at one end of the connecting rod 2, the first piston clamping disc 3 and the second piston clamping disc 4 are sequentially arranged at the other end of the connecting rod 2, a gap for fixing a tail push plate 14 on a piston handle 13 of a clamping syringe is reserved between the first piston clamping disc 3 and the second piston clamping disc 4, the empty cylinder support comprises an arc-shaped connecting plate 6 and two empty cylinder fixing discs 5, the two empty cylinder fixing discs 5 are arranged at one end of the arc-shaped connecting plate 6 in parallel, the arc-shaped connecting plate 6 covers the peripheral side of an empty cylinder 11 of the syringe, a gap for clamping a tail lug plate 12 on the fixed empty cylinder 11 is reserved between the two empty cylinder fixing discs 5, the arc-shaped connecting plate 6 is provided with a strip-shaped clamping groove 8, and the thumb holding disc 1 is provided with a metering boss 15 which slides linearly in the strip-shaped clamping groove 8.

In this embodiment, the first piston clamping disk 3 is provided with piston rod clamping grooves 9, and the two hollow cylinder fixing disks 5 are both provided with hollow cylinder clamping grooves 10.

In this embodiment, evenly be provided with circular measurement recess 7 in the bar draw-in groove 8, the position of measurement recess 7 corresponds the scale mark setting on the empty section of thick bamboo 11 of syringe, and when the doctor pulled piston rod 13 through first piston centre gripping dish 3 and second piston centre gripping dish 4, measurement boss 15 slided in bar draw-in groove 8, takes place slight vibration when measurement boss 15 reachs measurement recess 7, thereby the doctor judges the displacement volume quantification suction volume of piston rod 13 through the vibration.

In this embodiment, the metering groove 7 at the end corresponds to the 0-scale mark on the empty tube 11, and the distance between adjacent metering grooves 7 corresponds to the capacity of 0.05 mL.

The utility model discloses during the installation uses, at first get a general aseptic syringe, fix empty bobbin holder on syringe empty bobbin 11, make two 5 fixed centre gripping afterbody otic placodes 12 of empty bobbin fixed disk, then install the piston support, make afterbody push pedal 14 on the fixed centre gripping syringe piston rod 13 of first piston grip disc 3 and second piston grip disc 4, make measurement boss 15 be located the measurement recess 7 of 0 scale, doctor one-hand three fingers are operated, the thumb is located thumb and holds 1, carry out syringe suction operation at last, judge the drawing liquid volume through the vibration sense of touch during back-pull piston rod 13, can realize suction 0.05mL under the condition that need not to visualize, 0.1mL, 0.15mL, the suction target of 0.2mL etc.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modifications, changes and equivalent changes made to the above embodiments according to the technical spirit of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a syringe outer support of one-hand measurement suction, its characterized in that, includes piston support and empty section of thick bamboo support, piston support includes that the thumb holds dish (1), connecting rod (2), first piston centre gripping dish (3) and second piston centre gripping dish (4), the thumb holds dish (1) and sets up the one end at connecting rod (2), and first piston centre gripping dish (3) and second piston centre gripping dish (4) set gradually the other end at connecting rod (2), leaves the clearance that is used for fixed afterbody push pedal (14) on centre gripping syringe piston handle (13) between first piston centre gripping dish (3) and second piston centre gripping dish (4), empty section of thick bamboo support includes arc connecting plate (6) and two empty section of thick bamboo fixed disks (5), and empty section of thick bamboo fixed disk (5) parallel arrangement is in the one end of arc connecting plate (6), arc connecting plate (6) cover the periphery side at empty section of thick bamboo (11) of syringe, a gap for clamping the lug plate (12) at the tail part on the fixed hollow cylinder (11) is reserved between the two hollow cylinder fixing discs (5), a strip-shaped clamping groove (8) is formed in the arc-shaped connecting plate (6), and a metering boss (15) which slides linearly in the strip-shaped clamping groove (8) is arranged on the thumb holding disc (1).

2. The outer support of the single-hand metering suction syringe as claimed in claim 1, wherein the first piston clamping disc (3) is provided with a piston rod clamping groove (9), and the two hollow cylinder fixing discs (5) are provided with hollow cylinder clamping grooves (10).

3. The injector outer bracket for one-hand metering suction according to claim 1 is characterized in that circular metering grooves (7) are uniformly arranged in the strip-shaped clamping groove (8).