CN101559249A - Injection method and injection device using injector with length-adjustable needle head - Google Patents

Abstract

The invention relates to an injection method using a length-adjustable needle head. The method comprises an adjustment step, an insertion step, a suction step and an injection step, wherein in the adjustment step, the exposure length of the length adjustable needle head of an injector corresponding to the skin tissue of a patient is adjusted; in the insertion step, the injector is positioned on the skin tissue along an upright direction relative to the skin tissue and the needle head is inserted; in the suction step, the condition that whether the needle head is inserted into the blood vessel or not is checked; and in the injection step, injection liquid is injected from the injector inserted into the skin tissue by a depth corresponding to the exposure length of the needle head.

Description

Use has the injecting method and the injection device of the syringe of length-adjustable needle head

Technical field

The present invention relates to a kind of injection device with length-adjustable syringe needle, wherein the operator can carry out injection injection exactly at the desired depth place in the patient skin tissue, also relates to a kind of by using above-mentioned injection device that injection is injected perpendicularly into injecting method in the patient skin tissue.

Background technology

The injection of in the hospital human body and animal being carried out can be divided into intramuscular injection, intravascular injection, the outer injection of skin etc.In operator's injection operation, use to meet the health method and the corresponding standard needle of operation purpose expectation.Therefore, hospital has large size syringe needle, the medium size syringe needle that is used for intravascular injection that is used for intramuscular injection and is used for the outer small size syringe needle of injecting of skin.The company of manufacturing or supply injection needle provides the syringe needle of packaging kit.

The typical syringe that the ordinary people can buy easily comprises columnar syringe body, in main body reciprocating plunger and needle sleeve, this needle sleeve has the sleeve pipe of the body front end of being bonded on.The large size syringe needle generally uses to inject in the shallow layer skin skin tissue in department of dermatologry hospital and dental surgery hospital.Because the operator should precisely inject at the certain depth place in skin, surgical operation may make operator and patient feel tired.Therefore, may inject repeatedly hardly and have identical injection depth simultaneously.When the patient saw the large size syringe needle, the patient just may fear the large size syringe needle before operation, and this can cause unsettled operation.

Fig. 1 be diagram in the conventional art injection device and the viewgraph of cross-section of injecting method.Injected when for example being used for plastic operation or drawing the aesthetic surgery of skin when injection (implant), more effective in order to perform the operation, injection should be injected between corium D and the fatty tissue F.In this case, the operator uses the syringe with minute hand head to insert in the patient skin with the syringe needle of specific oblique angle with syringe, injects the injection of specified quantitative then, again syringe needle is pulled out certain depth, and injection injection liquid once more.Said process carries out repeatedly, so the injection site of injection is different.When injection was injected among the corium D, corium D was supportted wide and swelling, caused a large amount of pain simultaneously.When injection is injected among the epidermis E, may produce lump in the injection site.Because injection needle inserts skin with the inclination angle and when pulling out the multiple injection injection, skin may irriate and may be injured, so the patient has a lot of miseries.Because the problems referred to above, plastic operation or draw the dermasurgery operation normally not carry out.Even when comparing common operation, also can not obtain successive effect.

Summary of the invention

Therefore, the purpose of this invention is to provide a kind of injecting method and adjustable syringe of a kind of needle length that uses the adjustable syringe of needle length, they have overcome existing problem in the conventional art.

Another object of the present invention provides a kind of injecting method and adjustable syringe of a kind of needle length that uses the adjustable syringe of needle length, wherein, by using length-adjustable syringe needle and by vertically being expelled to syringe needle in the patient skin, injection can be expelled to the degree of depth of expecting in the skin, and injection injection liquid effectively, this causes safer injection.

To achieve these goals, provide a kind of injecting method that uses length-adjustable needle head, this injecting method comprises: regulating step, in this step, regulate syringe length-adjustable needle head organize corresponding syringe needle exposed length with patient skin; Inserting step in this step, is positioned at syringe on the skin histology along the vertical direction with respect to skin histology, and inserts syringe needle; And injecting step, in this step, the syringe from be inserted into the skin histology with the corresponding degree of depth of syringe needle exposed length injects injection.

In the present invention,, can realize the injection of same depth, and, can realize injection efficiency and injection safety, reduce patient's misery simultaneously by vertically being expelled in the skin by using length-adjustable needle head.

Description of drawings

With reference to the accompanying drawing that only provides by the explanation mode, the present invention will become better understood, and described accompanying drawing is not a limitation of the present invention, in the accompanying drawings:

Fig. 1 is the viewgraph of cross-section of traditional injecting method;

Fig. 2 is that the diagram use is regulated the axonometric chart of the process of syringe needle exposed length according to the adjustment means in the syringe of the present invention;

Fig. 3 is the viewgraph of cross-section that the syringe after diagram mixes up needle length according to the present invention inserts the process in the patient skin;

Fig. 4 is shown in the viewgraph of cross-section that the process that depressor exerts pressure to the injection site is used in use after according to injector to inject injection of the present invention;

Fig. 5 is the exploded perspective view of diagram according to the unitary construction of syringe of the present invention;

Fig. 6 is the exploded perspective view of the detailed construction of diagram first embodiment of the invention syringe;

Fig. 7 is the enlarged cross-sectional view of the syringe of Fig. 6;

Fig. 8 is the exploded perspective view of the detailed construction of diagram second embodiment of the invention syringe;

Fig. 9 is the enlarged cross-sectional view of the syringe of pictorial image 8;

Figure 10 is the exploded perspective view of diagram according to the detailed construction of the syringe of third embodiment of the invention;

Figure 11 is the exploded perspective view of diagram according to the structure of the syringe that is equipped with the bull syringe needle of four embodiment of the invention;

Figure 12 is the viewgraph of cross-section of the syringe of diagram Figure 11;

Figure 13 is that diagram uses the bull syringe needle of Figure 11 to carry out the process viewgraph of cross-section of inserting step;

Figure 14 is the axonometric chart of the device of the injection that diagram the present invention can auto-injection syringe;

Figure 15 is that diagram uses the device of Figure 14 to carry out the viewgraph of cross-section of the process of inserting step; And

Figure 16 is the sketch map of diagram automated injection device.

The specific embodiment

Injecting method according to use length-adjustable needle head of the present invention is described below with reference to accompanying drawings.

At first describe and have the operational approach of length-adjustable needle head 131 syringes with reference to Fig. 2 to 4.

The aforesaid operations method comprises regulating step, and in this step, the operator uses adjustment means 140 to regulate the length ofsyringe needle 131 with respect to the skin that will inject.Here, the syringe construction that is suitable for injecting method of the present invention will be described later.

For example, when using the syringe of general type, the needle sleeve that the operator needs to have the syringe needle that is suitable for the skin part that will inject joins syringe body to, but in the present invention, without the length of bobbin head how the needle sleeve that the operator only needs only to have one type of syringe needle joinssyringe body 110 to and, makes it possible to carry out polytype injection.Have in the situation of medium size or large size syringe needle at joint,, also can regulate the exposed length of syringe needle by rotation adjustment means 140 even at this moment need to have the syringe of small size syringe needle.

Make the conventional art of multiple size withsyringe needle 131 and compare, adjustment means 140 helps to reduce the manufacturing of syringe needle and supplies required cost.In conventional art,metal needle 131 is one withneedle sleeve 130, and needle sleeve is generally made by the synthetic resin material.In this case, in the manufacture process of above-mentioned syringe needle,syringe needle 131 should be with respect toneedle sleeve 130 embedded injection mouldings.Compare with medium size or large size syringe needle, need more accurate production technology in the production of small size syringe needle, this causes more accurate production equipment, and making needs many production lines, thereby has increased cost.But in the present invention, according to the size ofneedle sleeve 130, adjustment means 140 can be produced separately by the injection moulding method.Therefore, should be appreciated that, can save greatly to change and design and buy the required cost of manufacturing equipment that is used to realize the different size syringe needle.

As shown in Figure 3, injecting method of the present invention comprises inserting step, in this step, syringe is located vertically with respect to skin histology, thensyringe needle 131 is inserted in the skin.Because the operator can use adjustment means 140 to regulate the exposed length ofsyringe needle 131 like a cork,, can significantly reduce the malpractice that when use is not suitable for expecting thesyringe needle 131 of injection depth, may occur so should be appreciated that.

For example, most preferably, injected when being used for plastic operation or drawing skin at injection (implant), injection L is injected into the intersection between corium D and the fatty tissue F.In above-mentioned regulating step, when the adjustment means 140 that joinsneedle sleeve 130 to by rotation was in one direction set the exposed length ofsyringe needle 131, thesyringe needle 131 that exposes can become shorter than original needle length.When length-adjustable needle head that in the vertical direction will expose 131 inserts in the skin histologies, the needle point ofsyringe needle 131 correctly can be positioned between corium D and the fatty tissue F, wherein injection L is by described needle point release.When in the vertical direction inserts syringe needle in the skin, can very accurately regulate insert action, therefore it is minimum to inject dermatorrhagia.Because the patient does not fearshort syringe needle 131, so the operator can operate more like a cork.

As shown in Figure 3, injecting method of the present invention comprises injecting step, in this step, injection accurately can be expelled to the position of desired depth from syringe.

Even when the operator repeatedly insertssyringe needle 131 in the patient skin under the state of regulatingsyringe needle 131 length according to patient's the corium D and the degree of depth between the fatty tissue F, also injection can be expelled between corium D and the fatty tissue F equably.

Injecting method of the present invention also comprises the step of exerting pressure, and in this step, is exerted pressure in the injection site.In the above-mentioned step of exerting pressure, adopt thedepressor 600 of Fig. 4.Depressor 600 has the main body of flat shape or curved shape, is formed with the portion that exerts pressure of concave shape at the place, one or both ends of main body.Injected skin part generally is irregular concavo-convex after injection, thus need the operator to massage injected skin part so that uneven surface becomes smoothly, otherwise bruise can appear at injected skin part.In the present invention, can exert pressure by the spill portion of exerting pressure that usesdepressor 600 and massage, this makes and has overcome traditional problem.

When using the syringe with length-adjustable needle head according to the present invention to inject, should be appreciated that, can realize lot of advantages.According to use the syringe with length-adjustable needle head of the present invention inject after and the injection result that after the traditional syringe needle of use is annotated with angle of inclination injection injection liquid, obtained, the present invention compares shown in the advantage table 1 below that is had with conventional art.

[table 1]

As in above-mentioned table 1, seeing, in the injecting method that uses according to the injector to inject injection with length-adjustable needle head of the present invention, can realize painless injection, and can obtain long lasting injection effect that patient satisfaction is very high.

Fig. 5 is the figure of the unitary construction of the diagram syringe that is used to realize injecting method of the present invention.

Be used to realize that the syringe of injecting method of the present invention comprises cylindricalshape syringe body 110 andplunger 120, wherein syringe body has the particular memory space that is used to store injection, and plunger 120 inserts frommain body 110 rear ends and is used for promoting forward injection.

Needle sleeve 130 joins the front portion ofmain body 110 to, andsyringe needle 131 stretches out length-specific from the front end of needle sleeve 130.Arranged outside atneedle sleeve 130 has adjustment means 140, is used to regulate the length of syringe needle.

Helmet 150 covers onmain body 110 front sides, therebysyringe needle 131 can not be exposed aftersyringe production.Helmet 150 can prevent damage and because some accidents thatsyringe needle 131 may cause ofsyringe needle 131.

Fig. 6 and 7 is figure of unitary construction of the syringe of diagram first embodiment of the invention.

Shown in figure,plunger 120 is inserted into thesyringe body 110 from the rear end ofsyringe body 110, and theneedle sleeve 130 withremovable needle 131 joins the front side ofmain body 110 to.Above-mentioned structure of the present invention is similar a bit to conventional syringe.

But, in syringe of the present invention, in the time need regulating the exposed length ofsyringe needle 131, can use the adjustment means 140 that is arranged onneedle sleeve 130 outsides to regulate the exposed length ofsyringe needle 131 according to ambient conditions.Adjustment means 140 is the cylindrical shape of hollow, and central part is formed with throughhole 141 in the above, makessyringe needle 131 pass throughhole 141.

On the back side external surface ofneedle sleeve 130, be formed withscrew thread 130a, and on the rear side inner surface of adjustment means 140, be formed with corresponding screw thread 140a withscrew thread 130a.

Here, the internal diameter of adjustment means 140 is corresponding to the external diameter ofneedle sleeve 130, and the outer radius portion ofneedle sleeve 130 is contained in the inside of helmet 150.Therefore, in the present invention,, do not need to change the structure of conventional syringe orsyringe needle 131 owing to the application of adjustment means.

Because the length thatsyringe needle 131 exposes from the syringe front end is wanted and can be regulated by adjustment means 140, so adjustment means 140 is bonded onneedle sleeve 130 outsides.Here, compare with theneedle sleeve 130 withsyringe needle 131, the unit cost of adjustment means 140 is much lower.Here, the cost ofneedle sleeve 130 is higher, becausegeneral needle sleeve 130 will be made polytype and based on the standardsupply.Needle sleeve 130 is being assembled under the state ofsyringe body 110 front ends, the only part ofsyringe needle 131 is exposed at outside the front side of adjustment means 140, and assembly and disassembly work is easier like this.

Fig. 8 and 9 is diagram figure according to the structure of the syringe of second embodiment of the invention.

As illustrating here, the structure of the syringe of second embodiment of the invention and the structure of first embodiment of the invention are closely similar.Syringe according to second embodiment of the invention comprises cylindricalshape syringe body 210, plunger 220,needle sleeve 230 and adjustment means 240, wherein saidsyringe body 210 has the particular space that is used to store injection, plunger 220 is inserted into themain body 210 and promotes injection forward frommain body 210 rear ends,needle sleeve 230 has thesyringe needle 231 of the main body of being bonded on 210 front ends, and adjustment means 240 joinsneedle sleeve 230 outsides to.

In first embodiment of the present invention, on the outer surface ofneedle sleeve 130 and be formed with the screw thread of matching structure on the inner surface of adjustment means 140 respectively.But, in the present embodiment, be formed withmounting groove 232 around direction, andO shape ring 233 joins mountinggroove 232 inneedle sleeve 230 outer surface upper edges.BecauseO shape ring 233 contact with the inner surface of adjustment means 240,, preventing scraping or damage adjustment means 240, and adjustment means 240 is fixed in position reliably so preferablyO shape ring 233 is made by elastomeric material.

Inner surface and O shape in adjustment means 240 are encircled under 233 state of contact, can regulate the exposed length ofsyringe needle 231 by exerting pressure on direction forward or backward adjustment means 240.

In this embodiment of the present invention, production process and production cost do not need to carry out inneedle sleeve 230 and adjustment means 240, to form the screw thread processing work of screw thread because only need inneedle sleeve 230, form the process of mountinggroove 232, so can both reduce greatly in the present invention.

In second embodiment of the present invention, be provided withO shape ring 233, but also can onneedle sleeve 230 outer surfaces, form the specific contact protrusion (not shown) of making by elastomeric material, and do not formO shape ring 233.

Figure 10 is the figure of diagram according to the structure of the syringe of third embodiment of the invention.

Even join at the large size syringe needle under the situation ofsyringe body 310, adjustment means 340a, 340b and 340c also can be used in the length of regulating syringe needle.In the present invention, owing to used adjustment means 340a, 340b and 340c, do not need to change the shape of syringe and syringe needle.

The external diameter of the lower end of each adjustment means 340a, 340b and 340c is definite like this, makes described external diameter can be assembled into the internal diameter at the junction surface 311 ofsyringe body 310.

Stretch out thelatch part 341 that the method for being threadably engaged joins 12 inboards, junction surface to from the downside of each adjustment means 340a, 340b and 340c.

Adjustment means 340a, 340b manufacture with 340c has various sizes to be used for the different injection depths of syringe needle, therefore for corresponding injection, can in adjustment means 340a, 340b and 340c, select suitable one, and join it junction surface of syringe to.

Shown in Figure 11 to 13, in the insertion and injecting step of injecting method of the present invention, can usebull syringe needle 500 with a plurality of syringe needles of being arranged to delegation at least or string.Compare with the common injection that is equipped with a syringe needle,bull syringe needle 500 according to the present invention is equipped with a plurality of syringe needles, therefore can carry out a plurality of injections in a shot.

Bull syringe needle 500 is connected to from the outstanding mouth of pipe 111 ofsyringe 100 front ends.Bull syringe needle 500 comprises a main sleeve pipe 510 and sub-sleeve pipe 520, and wherein main sleeve pipe 510 joins the mouth of pipe 111 to, and sub-sleeve pipe 520 has a plurality of syringe needles 501 that join main sleeve pipe 510 to.Adjustment means 540 is arranged on the upside of needle sleeve 550, is used for regulating according to the syringe needle insertion depth of corresponding operating the exposed length of syringe needle.Can use the adjustment means 540 of different length to change the exposed length of syringe needle 501.

In main sleeve pipe 510, be provided with an inlet 511 and a plurality of outlet 521.The inlet 511 of main sleeve pipe 510 is given prominence to, and the mouth of pipe 111 ofsyringe 110 is inserted into inlet 511 inboards.The outlet 521 of main sleeve pipe 510 is communicated with in main sleeve pipe 510 with inlet 511.511 injection that are input to main sleeve pipe 510 inboards are discharged into main sleeve pipe 510 outsides by a plurality of outlets 521 by entering the mouth.Be provided with a plurality of syringe needles 501, each syringe needle is inserted into respectively in the corresponding outlet 521.Syringe needle 501 can be inserted in the outlet 521 regularly, and can fill the sealing fixture of being made by the certain material of for example silicon 530 between outlet 521 and syringe needle 501.

In main sleeve pipe 510 according to the present invention, outlet 521 and syringe needle 501 can be provided with embarks on journey, and therefore may once carry out identical injection in wideer zone.Described structure is not limited thereto.In other embodiment of the present invention, outlet 521 and syringe needle 501 can be arranged to multirow or multiple row, thereby can the wider scope of a shot.

Main sleeve pipe 510 is connected tosyringe 110 at the end that it is formed with inlet 511, and is formed with spatial accommodation 512 at its other end.Inlet 511 is outstanding laterally from an end of main sleeve pipe 510, and forms cylindrical shape.Spatial accommodation 512 forms spill, and its other end from main sleeve pipe 510 is recessed towards interior direction.Bottom margin portion at spatial accommodation 512 is formed with ladder 513, and the inlet 511 and the spatial accommodation 512 that form in main sleeve pipe 510 communicate with each other.

A plurality ofly go out 521, and a plurality of syringe needle 501 is arranged on respectively and exports in 521 by sub-sleeve pipe 520.Each syringe needle 501 can insert respectively regularly and export in 521, and can use sealing fixture 530 fixing.Here, sub-sleeve pipe 520 is inserted in the main sleeve pipe 510 regularly.

Sub-sleeve pipe 520 is inserted in the spatial accommodation 512 of main sleeve pipe 510 regularly, makes the lower end peace of sub-sleeve pipe 520 lean against on the ladder 513.Therefore, between the lower end of the bottom of spatial accommodation 512 and sub-sleeve pipe 520, form and the highly identical particular space of ladder 513.Inlet 511 and go out

521 communicate with each other by formed space.

Second main body 520 forms shortlyer and fixedly inserted in the spatial accommodation 512 of first main body 510, and the adjustment means 540 of restriction syringe needle 501 insertion depths removably joins second main body 520 to.

For example, on second main body, 520 outer surfaces, form groove 529, and be formed with the hook portion 545 that is inserted in the groove 529 in the lower end of adjustment means 540.In adjustment means 540, be formed with a plurality of through holes 541, and each through hole 541 forms relative with the outlet 521 of second main body 520.When adjustment means 540 is installed in second main body 520 of needle sleeve 550, be arranged on and correspondingly go out each syringe needle 501 in 521, and the needle point of each syringe needle 501 reveals the outside through the respective through hole 541 of adjustment means 540.Syringe needle 501 is at the exposed length long enough through the needle point that exposes after the adjustment means 540, makes the exposing that needle point can pass epidermis E of syringe needle and the intersection that is inserted into corium D and fatty tissue F is used to inject beautifying liquid.Provide helmet 560 to be used to prevent the damage ofbull syringe needle 500.

As shown in figure 13, by inserting the simple procedure of syringe needle 501, can accurately insert each syringe needle 501, thereby can realize the effect of multiple injection by a shot up to the end of needle sleeve 550 contact skin.

The insertion of injecting method of the present invention and injecting step can be applied to the automated injection device of Figure 14 and 15.

Automated injection device 400 according to the present invention comprisesmain body 410 with handle, be used to the plunger delivery unit that transports the syringe delivery unit of syringe and be used to transport plunger.Traditional syringe can be bonded in theautomated injection device 400, but syringe 200,300 and 500 according to the present invention can preferably engage.

More specifically, main body 410 forms the plunger shape and has the Syringe support 411 that is installed in main body 410 upsides movably, and console switch 413 is arranged on a side of handle 420.Main body 410 comprises: syringe delivery unit 460, and it is installed in the main body and joins Syringe support 411 to and use stepper motor 462 that Syringe support 411 is moved back and forth; Plunger delivery unit 440, it removably engages handle, and plunger delivery unit 440 joins the plunger of syringe to and by mobile plunger injection injected away from syringe; And control display unit 430, it comprises and is installed in the battery that is used on main body 410 back sides to plunger delivery unit 440 power supply that control display unit 430 is used for controlling respectively and showing the operation of syringe delivery unit 460 and plunger delivery unit 440.The framework that main body 410 forms according to automated injection device 400 of the present invention.Main body can form specific shape, makes user easily to hold and to use.Syringe support 411 is arranged on the upside of main body 410 movably, and syringe is arranged on the Syringe support.In the handle of main body 410, promptly in triggering portion, be provided with console switch 413, be used for operation and stop according to automated injection device 400 of the present invention.

Syringe delivery unit 460 joins theSyringe support 411 in themain body 410 to, is used to makeSyringe support 411 to move back and forth.As shown in figure 16,syringe delivery unit 460 comprises:first support member 461, and it is fixed in themain body 410;First stepper motor 462, it is fixed infirst support member 411;First leading screw 463, the one end is fixed to the end ofstepper motor 462 and its other end is rotatably fixed to the end offirst support member 461; And support member keeper, it moves forwards or backwards along firstleading screw 463 when first stepper motor, 462 forwards or backwards rotation, and movingSyringe support 411 along direction forward or backward, a side of support member keeper joins first leadingscrew 463 movably to and the other end is fixed in theSyringe support 411.

First support member 411 that is fixed in themain body 410 is fixed on horizontal base with right-angle bending and withfirst stepper motor 462, and the other end of firstleading screw 463 joins to rotationally from the cross side of horizontal base with right-angle bending.

Here, be fixed onstepper motor 462 infirst support member 411 according to control and the impulse type control signal ofdisplay unit 430 and forward or backwards rotation, thereby to rotate first leading screw 463.Stepper motor (generally being called stepper motor, impulse motor etc.) is the transducer that certain power is converted to mechanical axially-movable according to the impulse type control signal from control and display unit 430.The rotating shaft of stepper motor is according to number of pulses rotational fixation angle, and when regulating according to the pulse spacing, can control to drive type and speed to be suitable for controlling purpose.First leading screw 463 that is directly connected tofirst stepper motor 462 converts the rotational motion ofstepper motor 462 to rectilinear motion, and is arranged on rotationally betweenfirst stepper motor 462 andfirst support member 461.

When stepper motor 462 forwards or backwards rotation, thesupport member keeper 464 that joins first leadingscrew 463 movably to and be fixed toSyringe support 411 moves forwards or backwards along firstleading screw 463, thereby movesSyringe support 411 along direction forward or backward.

Plunger delivery unit 440 is installed in themain body 410, andplunger delivery unit 440 joins the plunger of syringe to, is used for by mobile plunger injection being expelled to skin or the health from syringe whenSyringe support 411 is moved by syringe delivery unit 460.Plunger delivery unit 440 comprises: integratedsecond support member 442 that is formed onSyringe support 411 rear ends; Be fixed onsecond stepper motor 441 of second support member, 442 rear sides;Second leading screw 443, it is fixed to 441 rotating shafts of second stepper motor and is rotatably fixed tosecond support member 442 andsupport member keeper 464 respectively;Second stepper motor 441, one side join secondleading screw 443 movably to, and its opposite side joins plunger back-end to;Plunger keeper 412, it moves forwards or backwards along secondleading screw 443 when second stepper motor, 441 forwards or backwards rotation, thereby promotes plunger forward or backward.

Second support member 442 in the integrated rear end that is formed onSyringe support 411 supportssecond stepper motor 441 regularly, and secondleading screw 463 rotatably joinssecond support member 442 to.

Second stepper motor 441 that is fixed on second support member, 442 rear sides according to the pulse type signal of control and display unit with certain angle forward or reverse on rotation, and rotate secondleading screw 443.

Second leadingscrew 443 that directly joins 441 rotating shafts of second stepper motor to converts rotatablely moving ofstepper motor 441 to straight reciprocating motion, and rotatably is separately positioned betweensecond stepper motor 441 andsecond support member 442 and betweensecond stepper motor 441 andsupport member keeper 464.

Whensecond stepper motor 441 forward or reverse on when rotating, theplunger keeper 412 that joins secondleading screw 443 movably to and join plunger back-end to moves forwards or backwards along secondleading screw 443, thus along direction mobile plunger forward or backward.

Battery 450 removably joins the handle ofmain body 410to.Battery 450 is arranged for givessyringe delivery unit 460 and 440 power supplies of plunger delivery unit respectively, and preferably is made of little lithium battery.In another embodiment, battery can be made of rechargeable battery.

Control anddisplay unit 430 are installed inmain body 410 rear sides.The operation of control anddisplay unit 430 controls and demonstrationsyringe delivery unit 460 andplunger delivery unit 440, and control anddisplay unit 430 comprise:adjustment disk 431, its panel is according to the continuous operation mode that is operating as of the corner ofadjustment disk 431 controlsyringe delivery unit 460 andplunger delivery unit 440, and wherein operator scheme is formed by injection liquid measure and injection depth with the corresponding frequency injection ofadjustment disk 431 corners, per injection; And display panel 432, it is based on control and the volume of syringe and the charge level modes of display operation of battery ofpanel.Adjustment disk 431 produces control signal according to corner, and allowssyringe delivery unit 460 andplunger delivery unit 400 respectively with certain operation mode.

The operation ofautomated injection device 400 will be described below.The injection liquid measure of correct operator scheme, frequency injection, per injection and injection depth are determined by proper operation adjustment disk 431.The operator holdsmain body 410, and the front end ofmain body 410 contacts with the position that will inject, promoteconsole switch 413, therebysyringe delivery unit 460 andplunger delivery unit 440 is according to the control operation of panel.

When automatedinjection device 400 is applied to according to injecting method of the present invention, the syringe that has injection by joint, can accurately regulate needle length according to skin depth, can in the shorter time, inject large-area skin, and can significantly reduce inject time, so operator and patient's feeling of fatigue can be lighter.

, the present invention do not break away from its spirit or essential characteristics because can implementing in a variety of forms, so should be appreciated that, unless otherwise indicated, otherwise above-mentioned example is not subjected to the restriction of any description details in front, but should be interpreted as more widely being in the spirit and scope of the present invention defined in the appended claims, therefore drop on the requirement of claim and the interior institute of identity-definition on border or this requirement and border and change and revise all and will comprise by claims.

Claims (9)

1. injecting method that uses length-adjustable needle head in syringe, described syringe comprise and are used to store the syringe body of injection and join body rear to be used for the plunger of exerting pressure to injection that described injecting method comprises:

Regulating step, in described step, by use adjustable syringe of needle length and adjustment means regulate syringe length-adjustable needle head organize corresponding syringe needle exposed length with patient skin, the adjustable syringe of described needle length comprises and joins the main body front side to and have the needle sleeve of syringe needle at front end that described adjustment means joins the needle sleeve outside to movably to regulate the exposed length of syringe needle thus;

Inserting step in this step, is positioned at syringe on the skin histology along the vertical direction with respect to skin histology, and inserts syringe needle; And

Injecting step, in this step, the syringe from be inserted into the skin histology with the corresponding degree of depth of syringe needle exposed length injects injection.

2. the method for claim 1, wherein, on the needle sleeve outer surface, be formed with screw thread, and by using adjustment means to regulate the exposed length of syringe needle, be formed with on the inner surface of described adjustment means with needle sleeve in the corresponding screw thread of screw thread that forms.

3. the method for claim 1, wherein on the outer surface of needle sleeve, be formed with mounting groove, and the O shape that contacts with the inner surface of adjustment means ring is arranged in the mounting groove.

4. injecting method that uses length-adjustable needle head in syringe, described syringe comprise and are used to store the syringe body of injection and join body rear to be used for the plunger of exerting pressure to injection that described injecting method comprises:

Regulating step, in this step, by use adjustable syringe of needle length and module units regulate syringe length-adjustable needle head organize corresponding syringe needle exposed length with patient skin, the adjustable syringe of described needle length comprises the adjustment means that joins the syringe body front end to and have cylindrical-shaped main body, described module units is used for joining syringe to lower body part, and the inner-diameter portion whose of described module units is inserted into the diameter expansion portion between the assembling protuberance of syringe needle keeper and injection needle;

Inserting step in this step, is positioned at syringe on the skin histology along the vertical direction with respect to skin histology, and inserts syringe needle; And

Injecting step, in this step, the syringe from be inserted into the skin histology with the corresponding degree of depth of syringe needle exposed length injects injection.

5. injecting method that uses length-adjustable needle head in syringe, described syringe comprise and are used to store the syringe body of injection and join body rear to be used for the plunger of exerting pressure to injection that described injecting method comprises:

Regulating step, in this step, by using the adjustable syringe of needle length, a plurality of syringe needles and adjustment means regulate syringe length-adjustable needle head organize corresponding syringe needle exposed length with patient skin, the adjustable syringe of described needle length comprises the needle sleeve that joins the main body front side to, described needle sleeve comprises inlet that the syringe mouth of pipe is inserted and a plurality of outlets that are communicated with respectively with inlet, described a plurality of syringe needle is inserted into each outlet of needle sleeve respectively, and be arranged to delegation or string at least, described adjustment means is inserted in the needle sleeve and the length that can regulate each syringe needle;

Inserting step in this step, is positioned at syringe on the skin histology along the vertical direction with respect to skin histology, and inserts syringe needle; And

Injecting step, in this step, the syringe from be inserted into the skin histology with the corresponding degree of depth of syringe needle exposed length injects injection.

6. syringe that needle length is adjustable, described syringe comprises and is used to store the syringe body of injection and joins body rear to be used for the plunger of exerting pressure to injection, described syringe uses in injection as claimed in claim 1, and the adjustable syringe of described needle length comprises:

Join the needle sleeve of main body front side to, it has the syringe needle that is bonded on described needle sleeve front side; And

The removable adjustment means that is used to regulate the syringe needle exposed length outside the needle sleeve that joins to.

7. syringe that needle length is adjustable, described syringe comprises and is used to store the syringe body of injection and joins body rear to be used for the plunger of exerting pressure to injection, described syringe uses in injection as claimed in claim 4, and the adjustable syringe of described needle length comprises:

Join the syringe body front end to and comprise the adjustment means of cylindrical-shaped main body, and the module units that is used for syringe is joined to lower body part, the inner-diameter portion whose of described module units is inserted into the diameter expansion portion between the assembling protuberance of syringe needle keeper and injection needle.

8. syringe that needle length is adjustable, described syringe comprises and is used to store the syringe body of injection and joins body rear to be used for the plunger of exerting pressure to injection, described syringe uses in injection as claimed in claim 5, and the adjustable syringe of described needle length comprises:

Needle sleeve, it joins the main body front side to and comprises an inlet and a plurality of outlets, and the mouth of pipe of syringe is inserted in the described inlet, and a plurality of outlet is communicated with inlet respectively;

A plurality of syringe needles, it is inserted into needle sleeve respectively and respectively exports and be arranged to delegation or string at least; And

Adjustment means, it is inserted in the needle sleeve and can regulates each needle length.

9. the injecting method of the adjustable syringe of a described needle length of claim in use such as the claim 6 to 8 comprises:

Regulating step, in this step, by use automated injection device regulate syringe length-adjustable needle head organize corresponding syringe needle exposed length with patient skin, described automated injection device comprises:

The piston-shaped main body, in this main body, the adjustable syringe of described needle length is bonded in the removable Syringe support, is provided with console switch in handle one side, is provided with connector connection unit at the opposite side of handle;

The syringe vehicle, it is installed in the main body and joins Syringe support to, and by using stepper motor that Syringe support is moved back and forth;

The plunger vehicle, it is installed in the main body and joins the plunger of syringe to, thereby and mobile plunger injection is released from syringe;

Battery, it removably joins the main body handle portion to, and gives the power supply of syringe vehicle and plunger vehicle respectively; And

Control and display device, it is installed in the main body rear side, controls and show the operation of syringe vehicle and plunger vehicle, and can improve the operator scheme of syringe vehicle and plunger vehicle by connector connection unit respectively;

Inserting step in this step, is positioned at syringe on the skin histology along the vertical direction with respect to skin histology, and inserts syringe needle; And

Injecting step, in this step, the syringe from be inserted into the skin histology with the corresponding degree of depth of syringe needle exposed length injects injection.

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