CN1864757A

CN1864757A - Administration instrument for medical use

Info

Publication number: CN1864757A
Application number: CN 200610080129
Authority: CN
Inventors: 马场德美; 石川德美; 松田孝一
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Puhexi Holdings
Priority date: 2001-12-13
Filing date: 2002-12-13
Publication date: 2006-11-22
Anticipated expiration: 2022-12-13
Also published as: CN100457212C; CN100506303C; CN1864758A; CN1864759A; CN100506304C

Abstract

It is intended to provide an administration instrument for medical use whereby a drug solution can be safely injected at a high reliability. Using this instrument, for example, a needle can be prevented from sticking deeper into the skin due to the force applied for pressing an injection button and, at the same time, maintained without shaking to ensure stable administration, thereby relieving physical and mental pains of a patient. Owing to the structure wherein an injection button (3) is pressed from an angle not parallel to the direction along which a needle (4) sticks into the skin, the needle can be prevented from sticking deeper into the skin than the level at the beginning due to the force applied for pressing the injection button, thereby ensuring stable administration.

Description

Administration instrument for medical use

The application's denomination of invention that to be Panasonic Electric Equipment Industrial Co.,Ltd proposed in December in 2002 on the 13rd is dividing an application of 02824803.1 application for " administration instrument for medical use ", application number.

Technical field

Employed medical dispensing when the present invention relates to medicinal liquid such as a kind of insulin and offeing medicine (throw with) utensil.

Background technology

In the past, administration instrument for medical use used in the occasion of throwing in medicinal liquids such as insulin or hormone preparation mostly.Generally speaking, this administration instrument for medical use entry needle and syringe body and injection button general arrangement point-blank, its structure is to use the injection button parallel with entry needle to extrude the injection that is built in the cartridge in the syringe body.Figure 24, shown in Figure 25 be its 2 representative conventional examples.

In Figure 24, the 201st, administration instrument for medical use body (below be also referred to as syringe body), 202 for sucking the injection in the inside of administration instrument for medical use body 201, the 203rd, injection button, the 204th, entry needle, the 205th, with the plunger of injection button 203 extruding-injection liquid 202 parts that be connected, direct.

In syringe body 201, be incorporated with injection 202.When throwing in injection, entry needle 204 is thrust skin, push injection button 203 is extruded the injection 202 in the administration instrument for medical use body 201.And, the dosage of the pushing amount decision injection 202 by plus-minus injection button 203.

Because dispensing person (patient) push injection button 203, internal piston 205 motions are from entry needle 204 extruding-injection liquid 202.Determine the injection liquid measure of input by the slippage of this plunger 205.The amount of the injection 202 that dispensing person (patient) decision is thrown in the place that entry needle 204 thrusts the skin that will inject, is finished injection by pushing injection button 203.At this moment, dispensing person (patient) must be when entry needle 204 enters skin, foundation experience in the past etc., and the decision entry needle inserts the amount of skin.

The administration instrument for medical use that oneself like this uses in when dispensing, as shown in figure 24, though be mechanical type form of a stroke or a combination of strokes formula mostly,, since to at first entry needle is thrust the identical direction push injection button of skin, so the state labile of offeing medicine.Corresponding, recently, the someone designed near part as shown in figure 25, that can address the above problem, setting and the contact skin in when dispensing entry needle, determine entry needle and skin the position, with the administration instrument for medical use of the sense of stability that improves the dispensing state.

In Figure 25, the 301st, administration instrument for medical use body, the 303rd, injection button, the 304th, entry needle, the 306th, when using this existing administration instrument for medical use to throw in injection, with the skin portion that contacts of contact skin, the 307th, cartridge, the 302nd, the injection in the cartridge 307.

When dispensing, make contact skin portion 306 and contact skin, entry needle 304 is thrust skin, push injection button 303 is extruded the injection 302 in the cartridge 307.And, by the pushing amount decision dosage of plus-minus injection button 303.

In addition, existing administration instrument for medical use, mostly under the situation, before reality is thrown in injection, entry needle is installed on the dispensing apparatus body, in order to prevent to inject the air that is mingled in the injection, carry out so-called sky and beat (below be also referred to as aerofluxus), a certain amount of injecting liquid drug that will determine then is in human body.

Outside drawing is an existing administration instrument for medical use shown in Figure 24, when throwing in medicinal liquid, might forget under the state that entry needle is installed on the dispensing apparatus body push injection button or dispensing button.Therefore, injection button or dispensing button also can occur having pushed unintentionally, cause some unhappy things.

In addition, existing administration instrument for medical use is though be that the doctor diagnoses indications such as the injection liquid measure of propose throwing in, dosing interval, dispensing person indicates according to this, oneself hauls oneself willingly into medicinal liquid, but injection liquid measure, the dosing interval thrown in, no matter dispensing person oneself controls.In addition, the doctor diagnoses termly, and injection liquid measure, the dosing interval of the input that injection liquid measure of throwing in according to diagnostic result, past and dosing interval decision are new propose indication.

The employed administration instrument for medical use of such in the past oneself dispensing, though be Figure 24 or as shown in Figure 25 mechanical mostly, the someone has designed the administration instrument for medical use that has added electronic installation recently.

Figure 26 and shown in Figure 27 be its representative structure chart.In addition, shown in Figure 28 is to be the block chart at center with the microprocessor.Shown in Figure 26 is front view, and shown in Figure 27 is the vertical view of expression part section.

In Figure 26, the 403rd, syringe body, the 401st, entry needle, the 404th, display part, the 405th, the dosage of injection is set indicator, the 406th, injection button.

In Figure 27, on syringe body 403, be fixed with the cartridge 407 of the injection 426 of having packed into.Dispensing person pulls out injection button 406 before injection.If pull out injection button 406, then with injection button 406, sleeve 418 and nut 412 also slide to the direction identical with injection button 406.

Because sleeve 418 slides, so the spline part 416 of sleeve 418 is connected with the spline part 417 that dosage is set indicator 405.Though the connecting portion glide direction of sleeve 418 and plunger 408 is not fixed, direction of rotation has been fixed.In addition, the connecting portion of sleeve 418 and nut 412, though direction of rotation is not fixed, glide direction has been fixed.

Consequently,, dispensing person rotates because making dosage set indicator 405, sleeve 418 rotations, and plunger 408 also rotates thereupon, owing to be arranged on the screw thread and the screw thread that is arranged on the periphery of plunger 408 in week in the nut 412, plunger 408 slides.Determine the injection liquid measure of dispensing by the amount of these plunger 408 slips.If do not pull out injection button 406, then sleeve 418 is not connected with dosage setting indicator 405, even make dosage set indicator 405 rotations, plunger 408 does not move yet.

Dispensing person makes dosage set indicator 405 rotations, and the injection liquid measure of decision dispensing is thrust the place that will inject with entry needle 401, by pushing injection button 406, finishes injection.When injection finished, injection button 406, sleeve 418, nut 412 slided to the direction that is pushed into.At this moment, in order to detect the situation that injection button 406, sleeve 418, nut 412 have slided, projection 420 is set, the fixing switch 413 that is switched on or switched off by projection 420 on body 403 on sleeve 418.

Under the state of pulling out injection button 406, switch 413 is connected, and disconnects under the state that pushes injection button 406.Can detect injection by the state of seeing this switch 413 and finish this situation.State by switch 413 is judged the mechanism that injection finishes, and uses the microprocessor 425 of Figure 28 etc., judges by the conducting state of judging switch 413.

And, the 417th, the spline part of setting indicator 405,419a, 419b are optical sensors, the 414th, liquid crystal display part, the 415th, circuit board, the 421st, swivel plate, 421a are the otch of swivel plate.In addition, in Figure 28, the 422nd, the memorizer of microprocessor 425, the 423rd, calendar, the 424th, clock, the 404th, the demonstration interface that is connected with liquid crystal display part 414.

Figure 29 is the enlarged drawing that detects the part of dispensing end.In addition, when setting the injection liquid measure of throwing in, dosage is set indicator 405, sleeve 418 rotations.The injection liquid measure of dispensing is rotated the amount of movement decision of the plunger 408 that causes by set indicator 405 because of dosage.Therefore, set the method that indicator 405, sleeve 418 rotation situations and rotation amount detect the injection liquid measure of dispensing and be widely used by detecting dosage.And, the 416th, sleeve spline portion, the 417th, set the indicator spline part.

At this, for example, as shown in figure 30, be provided with dosage and set the swivel plate 421 that indicator 405 is rotated simultaneously, as shown in figure 31, on swivel plate 421, be provided with otch 421a, cross at light on the position of otch 421a and be provided with 2 optical sensor 419a and 419b.If dosage is set indicator 405 rotations, then swivel plate 421 also rotate, be arranged on otch 421a on the swivel plate 421 make

optical sensor

419a and 419b light transmission or covered firmly.Because the signal that

optical sensor

419a and 419b according to how many outputs of light quantity are switched on or switched off, so, being switched on or switched off can detect and rotating and rotation amount according to the output of

optical sensor

419a and 419b.

And, use 2

optical sensor

419a and 419b, be because the difference of setting the direction of rotation of indicator 405 because of dosage has the cause of the occasion of occasion that the injection liquid measure of dispensing increases and minimizing.The phase contrast that is switched on or switched off with the output of 2

optical sensor

419a and 419b can be judged direction of rotation, and the number of times that switches on and off of the output by calculating

optical sensor

419a and 419b can detect the injection liquid measure of offeing medicine.As previously discussed, judge direction of rotation with the phase difference output of

optical sensor

419a and 419b, the number of times that switches on and off of the output by calculating

optical sensor

419a and 419b detects the mechanism of the injection liquid measure of dispensing, shown in figure 32, use microprocessor 425 etc.

The moment and date that also can be when microprocessor 425 and memorizer 422 records being set or showing that dispensing finishes be arranged again.In addition, there is the people also to design

optical sensor

419a and 419b is not an optical sensor, but utilizes the administration instrument for medical use of switch etc.

But, above-mentioned existing administration instrument for medical use shown in Figure 24, owing to when dispensing, entry needle 204 is thrust skin, again to entry needle 204 thrust the identical direction of the direction of skin on one side push injection button 203 throw in injection 202 on one side, so, for the state that thrusts skin from initial entry needle 204, with the form that entry needle deeper thrusts skin, when dispensing, increased misery to the patient.

In addition, as shown in Figure 25, even being provided with the occasion of contact skin portion 306 on administration instrument for medical use offers medicine, owing to make contact skin portion 306 and contact skin on one side, entry needle 304 is thrust skin on one side, to with entry needle 304 thrust the identical direction of the direction of skin on one side push injection button 303 throw in injection 302 on one side, so, for the state that thrusts skin from initial entry needle 304, with the form that entry needle 304 deeper thrusts skin, this is with above-described identical.Even this is that actual skin has elastic force because contact skin portion 306 is set, if push injection button 303 in fact, only the part of this power that pushes away will make entry needle 304 deeper thrust skin.

In order to prevent from deeper to thrust skin, in the dispensing process,, inject though need be fixed on aerial with arm or what method cautiously makes it fix with push injection button 303 1 sides, but this is extremely difficult in the occasion of oneself throwing in medicinal liquid.

And, in the process of dispensing, entry needle deeper thrusts skin, not only increased pain to the patient, also give thereupon and bring misery animally, mentally, because there is the problem that also might very big influence be arranged to dispensing person's (patient) human body, cause life-threatening risk and so in the difference of occasion.

In addition, Figure 24 and existing administration instrument for medical use shown in Figure 25, entry needle is not necessarily fixed, since because of the difference of the kind of entry needle different, so the amount that entry needle enters skin has deviation, according to the difference of its amount, owing to the failure that produces of injection and the burden of pain etc. are very big, also might very big influence be arranged, cause life-threatening risk dispensing person's (patient) human body.

In addition, existing administration instrument for medical use shown in Figure 24, even owing to forgetting that the occasion that entry needle is installed on the dispensing apparatus body also can push injection button or dispensing button, so, there is following problem.

The first, if entry needle is not installed, push injection button or dispensing button, the medicinal liquid 221b of the medicinal liquid 221a of leakage as shown in figure 33 or adverse current then, medicinal liquid leaks out from injection button or with the leading section of the opposite direction of button of offeing medicine, in addition, medicinal liquid can be to direction reverse flow, the leakage of injection button or dispensing button, have again, as shown in figure 34, packing the glass tubing of medicinal liquid into can be because crackle 227 appear in the pressure that push injection button or dispensing button produce, or breaks and rupture, and produces liquid leakage and arrives variety of issues such as outside.

In addition, even because as growth hormone etc., making it mix two kinds of medicinal liquids offers medicine or dissolves the occasion that confection and medicinal liquid are offerd medicine, also need after being installed, mix entry needle, so not only can not mix the installation entry needle, as previously discussed if forget, also can produce medicinal liquid adverse current, leakage, or crackle appears in the glass tubing of cartridge, problem such as break.Above-mentioned many problems occur in the occasion that patient oneself offers medicine mostly.

In addition, as Figure 24 to administration instrument for medical use shown in Figure 27, though occasion in doctor or nurse's dispensing, possibility of accident occurrence can be hanged down, but occasion in patient oneself dispensing, usually not can be appreciated that the bleeding of the syringe that before dispensing, must carry out, might forget aerofluxus.And, forgetting deflated occasion, might very big influence be arranged, cause life-threatening risk human body by people's difference.

In addition, Figure 26 and existing administration instrument for medical use shown in Figure 27, though electronic display unit can show the injection liquid measure of offeing medicine, but the injection liquid measure when being connected in the bleeding that to carry out before the dispensing, date has also been charged to memorizer 422, not only reduced to trick the capacity of memorizer 422, but also the injection liquid measure when similarly having shown bleeding with original injection liquid measure, so, confirm by dispensing person's (patient) diagnostic result and dispensing resume in the past the doctor, determine the occasion of later Therapeutic Method, the judgement that might do to make mistake.If the doctor makes the judgement of such mistake, then might very big influence be arranged, cause life-threatening risk dispensing person's (patient) human body.

Summary of the invention

The present invention proposes for solving problem as described above, and its objective is provides a kind of safe and can be with the administration instrument for medical use of very high reliability liquid medicine injection.

Promptly, the present invention proposes for solving Figure 24 or existing pen type as shown in Figure 25 or the problem of mechanical device, its objective is provides a kind of administration instrument for medical use when dispensing, even push injection button, can prevent that also entry needle from thrusting skin than desired depth the earth, and, can under stable status, offer medicine.

In addition, the present invention proposes for solving Figure 24 or existing pen type as shown in Figure 25 or the problem of mechanical device, the kind that its objective is the entry needle that this administration instrument for medical use of a kind of administration instrument for medical use and dispensing person (patient) use are provided has nothing to do, is of a size of necessarily by making entry needle enter skin, and become stable dispensing state, make can not occur owing to inject the burden of the failure that causes or pain and have reliability.

In addition, the present invention is that the problem for the device that solves existing pen type as shown in Figure 24 proposes, its objective is provides a kind of administration instrument for medical use, can prevent the leakage, adverse current of medicinal liquid, pack into the glass tubing of medicinal liquid crackle occurs, breaks etc. in addition, and, concerning the utensil that uses, have reliability and safety.

In addition, the present invention proposes to the problem of as shown in Figure 27 existing apparatus for solving Figure 24, and its objective is provides a kind of and lastly inform dispensing person surely in dispensing, makes it recognize administration instrument for medical use bleeding, that use safely easily of forgetting that not dispensing person must carry out before dispensing.

In addition, the present invention is for the problem that solves Figure 26 or the conventional device of having added electronic installation as shown in Figure 27 proposes, its objective is provide a kind of dispensing person can not carried out bleeding when the dispensing time dispensing liquid measure, date, charge to memorizer 422 constantly, keep the administration instrument for medical use of dispensing resume with reliability.

In order to achieve the above object, the administration instrument for medical use of claim 1 of the present invention possesses: be used for carrying out bulldozing operation by the dispensing person of injection, throw in the injection button of injection; With the pushing force of this injection button, with not parallel angle with the length direction of entry needle, be delivered to the pushing force transfer part of the plunger of the cartridge that stores injection, direction by thrusting entry needle relatively, with uneven angle push injection button, can throw in injection.

Therefore, the power in the time of can not transmitting the push injection button is compared deeper in the time of can not making it and thrust skin at first entry needle is thrust skin, can not increase by misery dispensing person's the human body and spirit.

In addition, the administration instrument for medical use of claim 2 of the present invention is on the basis of the administration instrument for medical use that claim 1 is put down in writing, and above-mentioned pushing force transfer part has: to the tooth bar of the direction extension identical with the press direction of above-mentioned injection button; The 1st gear of the type tooth engagement that forms with a side at the length direction of this tooth bar; The 2nd gear with the 1st gears engaged; Have the movable part with the type tooth of above-mentioned the 2nd gears engaged in the side with the orthogonal direction of bearing of trend of above-mentioned tooth bar, by the above-mentioned injection button of bulldozing operation, above-mentioned movable part pushes the plunger of above-mentioned cartridge.

In addition, the administration instrument for medical use of claim 3 of the present invention is on the basis of the administration instrument for medical use that claim 1 is put down in writing, and possesses the injection liquid measure configuration part of the injection liquid measure of the dispensing can set.

Therefore, when dispensing, only the push injection button need not be seen the dosage scale, can alleviate dispensing patient's burden.

In addition, the administration instrument for medical use of claim 4 of the present invention, be on the basis of the administration instrument for medical use that claim 3 is put down in writing, above-mentioned injection liquid measure configuration part has: make one with above-mentioned plunger, connect above-mentioned movable part and with the sleeve of this movable part engagement; Being installed in the opposite side of this telescopic and above-mentioned plunger, dispensing person can make above-mentioned movable part adjust knob at the inner forward and backward mobile dosage of above-mentioned cartridge by changing direction of rotation.

Therefore, adjust knob by the operation dosage, can set dosage in advance, when reality was offerd medicine, only the push injection button need not be seen the dosage scale, can alleviate dispensing patient's burden.

In addition, the administration instrument for medical use of claim 5 of the present invention, be on the basis of the administration instrument for medical use that claim 1 is put down in writing, possess after dispensing if make the finger of push injection button leave the injection button reset portion that then makes injection button turn back to original position.

Therefore, after dispensing, the dispensing patient need return injection button in order to offer medicine once more, can alleviate dispensing patient's burden.

In addition, the administration instrument for medical use of claim 6 of the present invention, be on the basis of the administration instrument for medical use that claim 5 is put down in writing, above-mentioned injection button reset portion is made of the spring between the medial surface of the end face of the opposite side with above-mentioned injection button of above-mentioned tooth bar and administration instrument for medical use body.

Therefore, only by additional simple structure, after dispensing, the dispensing patient need return injection button in order to offer medicine once more, can alleviate dispensing patient's burden.

In addition, the administration instrument for medical use of claim 7 of the present invention, be on the basis of the administration instrument for medical use that claim 1 is put down in writing, on the one side identical of administration instrument for medical use body, be provided with the skin portion that contacts of when injection and contact skin with the face that is provided with of entry needle.

Therefore, entry needle does not wave, and can throw in medicinal liquid with stable status.

In addition, the administration instrument for medical use of claim 8 of the present invention possesses: when throwing in medicinal liquid with dispensing person's contact skin, be used to make the in stable condition skin portion that contacts of offeing medicine; Can change the contact skin site changing unit of the position of this contact skin portion; Can change the contact skin area changing unit of the contact skin area of this contact skin portion.

Therefore, even the size of entry needle is not certain, be of a size of necessarily because the kind different length of entry needle not simultaneously, can make entry needle enter skin, the amount that enters skin of entry needle does not have deviation.In addition, under the state of dispensing, by changing, increase the fixed-area of contact parts of skin, administration instrument for medical use is with state and contact skin that feel all right, that have sense of stability on the skin that is bearing in dispensing person (patient), so, can provide a kind of and can alleviate, can promote doctor's treatment more reliably owing to the failure that causes of injection or the high administration instrument for medical use of burden, reliability of pain.

In addition, the administration instrument for medical use of claim 9 of the present invention, be on the basis of the administration instrument for medical use that claim 8 is put down in writing, above-mentioned contact skin site changing unit is by with stepped the above-mentioned contact skin portion chimeric needed locational chimeric fixed part that is fixed on the length direction of entry needle of relative administration instrument for medical use body being constituted.

Therefore, can reliably above-mentioned contact skin site changing unit be fixed on the needed position, can make entry needle enter skin and be of a size of necessarily, can eliminate the deviation (uneven) that entry needle enters the amount of skin.

In addition, the administration instrument for medical use of claim 10 of the present invention, be on the basis of the administration instrument for medical use that claim 8 is put down in writing, above-mentioned contact skin area changing unit is slided by the contact skin width adjustment part of the part by making the surface that comprises above-mentioned contact skin portion with manual operation, and the contact skin width adjustment portion that changes the area of contact skin width constitutes.

Therefore, under the dispensing state, can change, increase the fixed-area of contact parts of skin with manual operation easily, administration instrument for medical use is with state and contact skin that feel all right, that have sense of stability on the skin that is bearing in dispensing person (patient), so, can provide a kind of and can alleviate, can promote doctor's treatment more reliably owing to the failure that causes of injection or the high administration instrument for medical use of burden, reliability of pain.

In addition, the administration instrument for medical use of claim 11 of the present invention possesses the dispensing action suppressing portion of the dispensing action that can suppress push injection button or dispensing button when entry needle is not installed on the dispensing utensil.

Therefore, when forgetting that entry needle is installed has pushed injection button or dispensing button, can not occur medicinal liquid from the leading section with injection button or the opposite direction of dispensing button leak out, also have medicinal liquid to the direction adverse current of injection button or dispensing button, leak out, the glass tubing that the medicinal liquid of having packed into arranged again makes medicinal liquid leak into outside phenomenon owing to the pressure that push injection button or dispensing button produce cracks, breaks and rupture.

In addition, the administration instrument for medical use of claim 12 of the present invention is on the basis of the administration instrument for medical use that claim 11 is put down in writing, and above-mentioned dispensing action suppressing portion is not when entry needle is installed on the dispensing utensil, when carrying out above-mentioned push-botton operation, can suppress to extrude the plunger action of medicinal liquid.

Therefore, when forgetting that entry needle is installed has pushed injection button or dispensing button, can not occur plunger action, medicinal liquid from the leading section of the direction opposite with injection button or dispensing button leak out, also have medicinal liquid to the direction adverse current of injection button or dispensing button, leak out, the glass tubing that the medicinal liquid of having packed into arranged again makes medicinal liquid leak into outside phenomenon owing to the pressure that push injection button or dispensing button produce cracks, breaks and rupture.

In addition, the administration instrument for medical use of claim 13 of the present invention, be on the basis of the administration instrument for medical use that claim 11 is put down in writing, because above-mentioned dispensing action suppressing portion has and detects entry needle and whether be installed in entry needle installation and measuring portion on the dispensing utensil, so, detect entry needle and be not installed on the dispensing utensil, just stop injection button or dispensing button are operated.

In addition, the administration instrument for medical use of claim 14 of the present invention, be on the basis of the administration instrument for medical use that claim 13 is put down in writing, have by operating above-mentioned injection button or the dispensing button drives the plunger actuation portion of above-mentioned plunger, when above-mentioned entry needle is not installed on the dispensing utensil, above-mentioned entry needle installation and measuring portion engages with above-mentioned plunger actuation portion, suppresses injection button or dispensing button actions.

So, can not be installed in the situation of dispensing on the utensil to entry needle with simple structure detection, can stop injection button or dispensing button are operated, when forgetting that entry needle is installed has pushed injection button or dispensing button, medicinal liquid can not occur leaks out from the leading section with the injection button or the opposite direction of button of offeing medicine, also have the direction adverse current of medicinal liquid to injection button or dispensing button, leak out, the glass tubing that the medicinal liquid of having packed into arranged again is owing to the pressure that push injection button or dispensing button produce cracks, break and rupture, make medicinal liquid leak into outside phenomenon.

In addition, the administration instrument for medical use of claim 15 of the present invention is on the basis of the administration instrument for medical use that claim 14 is put down in writing, and in the time of on entry needle being installed in the dispensing utensil, contacts with above-mentioned detection part with the resin portion of entry needle one.

Therefore, can detect simply and have or not entry needle, can make small-sized administration instrument for medical use.

In addition, the administration instrument for medical use of claim 16 of the present invention is on the basis of the administration instrument for medical use that claim 15 is put down in writing, and from the dispensing utensil when unloading entry needle, breaks away from above-mentioned detection part with the resin portion of entry needle one.

Therefore, be simple testing agency, can make small-sized administration instrument for medical use.

In addition, the administration instrument for medical use of claim 17 of the present invention, be on the basis of the administration instrument for medical use that claim 14 is put down in writing, above-mentioned plunger actuation portion has: be used for carrying out bulldozing operation by the dispensing person of injection, throw in the injection button of injection; To the direction identical tooth bar that extend, that on its part, have the engaging piece of incision-like with the press direction of above-mentioned injection button; The 1st gear of the type tooth engagement that forms with a side at the length direction of this tooth bar; The 2nd gear of the type tooth engagement that forms with the 1st gear and along the length direction of above-mentioned plunger, above-mentioned entry needle installation and measuring portion has: set side by side with above-mentioned plunger, at one end have leading section, on the position corresponding, be formed with the push rod of the engaging piece of incision-like with the engaging piece of above-mentioned tooth bar by the L font of above-mentioned cartridge and entry needle clamping; Draw the spring members of this push rod to the preceding extreme direction of above-mentioned entry needle, the occasion of above-mentioned entry needle is installed the leading section of above-mentioned L font not being clipped in the middle, pulling force by above-mentioned spring members, be meshing with each other between the engaging piece of above-mentioned push rod and above-mentioned plunger, stop above-mentioned injection button or dispensing button are operated.

Therefore, can not be installed in the situation of dispensing on the utensil to entry needle with simple structure detection, can stop injection button or dispensing button are operated, when forgetting that entry needle is installed has pushed injection button or dispensing button, following problem can not occur: medicinal liquid leaks out from the leading section of the direction opposite with injection button or dispensing button, also have the direction adverse current of medicinal liquid to injection button or dispensing button, leak out, the glass tubing that the medicinal liquid of having packed into arranged again is owing to the pressure that push injection button or dispensing button produce cracks, break and rupture, make medicinal liquid leak into outside phenomenon.

In addition, its structure of the administration instrument for medical use of claim 18 of the present invention is in the occasion that cartridge will be fixed on the dispensing apparatus body, then can not normally cartridge be accommodated in the dispensing apparatus body if entry needle is installed.

Therefore, when forgetting that entry needle is installed has pushed injection button or dispensing button, following phenomenon can not appear: medicinal liquid from the leading section with injection button or the opposite direction of dispensing button leak out, also have medicinal liquid to the direction adverse current of injection button or dispensing button, leak out, the glass tubing that the medicinal liquid of having packed into arranged again makes medicinal liquid leak into outside phenomenon owing to the pressure that push injection button or dispensing button produce cracks, breaks and rupture.

In addition, the administration instrument for medical use of claim 19 of the present invention, be on the basis of the administration instrument for medical use that claim 18 is put down in writing, be in above-mentioned dispensing apparatus body, the dispensing utensil that mixes multiple medicinal liquid or dissolving confection and medicinal liquid adopts if the then immiscible structure of entry needle is not installed.

Therefore, because when entry needle was not installed on the dispensing apparatus body, cartridge can not be accommodated in the dispensing apparatus body, can not admixing medical solutions, can prevent that crackle from appearring in the glass tubing of leakage, the adverse current of medicinal liquid or the medicinal liquid of packing into, break etc.

In addition, the administration instrument for medical use of claim 20 of the present invention, on the basis that is the administration instrument for medical use put down in writing of claim 19, employing is in the occasion that cartridge will be fixed on the dispensing apparatus body, if entry needle is not installed, then the rear portion rubber section of above-mentioned cartridge contacts with the interior part of utensil of offeing medicine, and can not be in the structure of this cartridge slides within.

Therefore, owing to when entry needle is installed on the dispensing apparatus body, cartridge can not be installed in the dispensing apparatus body, can not admixing medical solutions, can prevent that crackle from appearring in the glass tubing of leakage, the adverse current of medicinal liquid or the medicinal liquid of packing into, break etc.

In addition, the administration instrument for medical use of claim 21 of the present invention, be on the basis of the administration instrument for medical use that claim 19 is put down in writing, above-mentioned cartridge preceding half Room that above-mentioned entry needle side is installed with the different medicament or the medicinal liquids of later half chamber filling of its opposition side, above-mentioned preceding half Room has the internal diameter of a part and makes the large-diameter portion bigger than other internal diameter, above-mentioned rear portion rubber section be provided in above-mentioned cartridge with the end face that entry needle side opposition side is installed on, by this rear portion rubber section is pressed in this cartridge, separate and move to above-mentioned large-diameter portion separating of above-mentioned preceding half Room and later half chamber, mix above-mentioned medicament or medicinal liquid with rubber.

Therefore, because if entry needle is not installed, then the rear portion rubber section of above-mentioned cartridge can not be on one side contacts with a part in the dispensing utensil, on one side in this cartridge slides within, when entry needle is not installed on the dispensing apparatus body, cartridge can not be accommodated in the dispensing apparatus body, so, can not admixing medical solutions, can prevent that crackle from appearring in the glass tubing of leakage, the adverse current of medicinal liquid or the medicinal liquid of packing into, break etc.

In addition, the administration instrument for medical use of claim 22 of the present invention, be on the basis of the administration instrument for medical use that claim 21 is put down in writing, have be fixed on this dispensing apparatus body, owing to be mounted to above-mentioned cartridge slided in the dispensing apparatus body, therefore have the part that dissolves of the above-mentioned rear portion of pushing rubber section.

Therefore, can be by being attached to the medicinal liquid mixing that simply constituting on the dispensing apparatus body carries out in the cartridge.

In addition, the administration instrument for medical use of claim 23 of the present invention, be on the basis of the administration instrument for medical use that claim 18 is put down in writing, in the time of on cartridge being fixed on the dispensing apparatus body, on the position of the fixing above-mentioned cartridge of dispensing utensil base side, be provided with open and close type.

Therefore, can carry out fixing operation to cartridge simply.

In addition, the administration instrument for medical use of claim 24 of the present invention, be on the basis of the administration instrument for medical use that claim 18 is put down in writing, be provided with between the apparatus body in entry needle and dispensing and detect entry needle and whether be installed in entry needle installation and measuring portion on the dispensing utensil.

In addition, the administration instrument for medical use of claim 25 of the present invention, be on the basis of the administration instrument for medical use that claim 20 is put down in writing, employing is fixed with and detects the entry needle installation and measuring portion interlock that entry needle is installed in the situation on the cartridge, is used to take in this cartridge makes its sliding part that slides in the dispensing apparatus body structure.

Therefore, only by additional simple structure, when entry needle has been installed, just can be smoothly and reliably cartridge is accommodated in the dispensing apparatus body, and, can keep the state of taking in reliably.

In addition, the administration instrument for medical use of claim 26 of the present invention, be on the basis of the administration instrument for medical use that claim 25 is put down in writing, above-mentioned entry needle installation and measuring portion, except when entry needle is installed, being clipped in the leading section of the L font between this entry needle and the cartridge, downside at above-mentioned sliding part sets with this sliding part is parallel, have spring force and the chimeric pushing and withstanding head (イジエ Network トノ Block) of peristome that in above-mentioned sliding part and above-mentioned entry needle installation and measuring portion, forms by pushing, above-mentioned sliding part and above-mentioned entry needle installation and measuring portion are formed with above-mentioned peristome, it is not being installed under the state of above-mentioned entry needle, the mutual position of peristome is overlapped, because this entry needle is installed, under the state of this entry needle installation and measuring portion dislocation, peristome is in different positions mutually.

In addition, the administration instrument for medical use of claim 27 of the present invention possesses before injection the aerofluxus informing portion of the bleeding of the indoor air of the medicinal liquid of reminding dispensing person to remove to remain in the dispensing utensil.

Therefore, concerning dispensing person (patient), can make it recognize aerofluxus, can prevent that dispensing person from forgetting before dispensing carries out bleeding, therefore, bring very big influence for dispensing person's (patient) human body, cause the generation of life-threatening risk and so on accident, the administration instrument for medical use that uses safely easily can be provided.

In addition, the administration instrument for medical use of claim 28 of the present invention, on the basis of the administration instrument for medical use that claim 27 is put down in writing, literal, mark or figure that above-mentioned aerofluxus informing portion display alarm dispensing person carries out bleeding send simultaneously and remind the sound that carries out bleeding.

Therefore, because literal, mark or figure that display alarm carries out bleeding, therefore, concerning dispensing person (patient), it is recognized carry out aerofluxus, can prevent that dispensing person from forgetting before dispensing carries out bleeding, therefore, bring very big influence for dispensing person's (patient) human body, cause the generation of life-threatening risk (state) and so on accident, the administration instrument for medical use that uses safely easily can be provided.

In addition, the administration instrument for medical use of claim 29 of the present invention, be on the basis of the administration instrument for medical use that claim 27 is put down in writing, above-mentioned aerofluxus informing portion has: the 1st switch, the 1st switch detects and unloads this body and function medicated cap, and this this body and function medicated cap is mounted to and covers the administration instrument for medical use body part that entry needle is installed; When this switch detects the situation that unloads this body and function medicated cap, produce the aerofluxus shows signal generating unit of the shows signal of literal, mark or the figure of reminding dispensing person to carry out bleeding; Display alarm carries out the display part of shows signal of literal, mark or the figure of above-mentioned bleeding, when unloading this body and function medicated cap, wherein this this body and function medicated cap is mounted to and covers the administration instrument for medical use body part that entry needle is installed, and makes its display alarm dispensing person carry out literal, mark or the figure of bleeding.

Therefore, because display alarm carries out bleeding when unloading this body and function medicated cap literal, mark and figure, so, concerning dispensing person (patient), it is recognized can prevent in advance aerofluxus: dispensing person forgets before dispensing and carries out bleeding, therefore, bring very big influence for dispensing person's (patient) human body, cause the generation of life-threatening risk and so on accident, the administration instrument for medical use that uses safely easily can be provided.

In addition, the administration instrument for medical use of claim 30 of the present invention, be on the basis of the administration instrument for medical use that claim 27 is put down in writing, above-mentioned aerofluxus informs that mechanism has: the 2nd switch that detects the situation in the administration instrument for medical use body that cartridge is fixed on; Detect when cartridge is fixed on situation about (being contained in) in the administration instrument for medical use body at this switch, produce the aerofluxus shows signal generating unit of the shows signal of literal, mark or the figure of reminding dispensing person to carry out bleeding; Display alarm carries out the display part of shows signal of literal, mark or the figure of above-mentioned bleeding, when cartridge being fixed in the administration instrument for medical use body, makes its display alarm dispensing person carry out literal, mark or the figure of bleeding.

Therefore, because display alarm carries out bleeding when having fixed cartridge literal, mark or figure, so, concerning dispensing person (patient), it is recognized can prevent in advance aerofluxus: dispensing person forgets before dispensing and carries out bleeding, therefore, bring very big influence for dispensing person's (patient) human body, cause the generation of life-threatening risk and so on accident, the administration instrument for medical use that uses safely easily can be provided.

In addition, the administration instrument for medical use of claim 31 of the present invention, be on the basis of the administration instrument for medical use that claim 27 is put down in writing, above-mentioned aerofluxus informing portion has: the 1st switch, the 1st switch detects and unloads this body and function medicated cap, and this this body and function medicated cap is mounted to and covers the administration instrument for medical use body part that entry needle is installed; When this switch detects the situation that unloads this body and function medicated cap, produce and remind dispensing person to carry out the exhaust sound signal generation of the acoustical signal of bleeding; Carry out the speaker that the acoustical signal of above-mentioned bleeding is sounded by prompting, when unloading above-mentioned body and function medicated cap, make it send the sound of reminding dispensing person to carry out bleeding.

Therefore, because being sent, it reminds the sound that carries out bleeding, so, concerning dispensing person (patient), can make it recognize in advance aerofluxus, can prevent that dispensing person from forgetting before dispensing carries out bleeding, therefore, bring very big influence for dispensing person's (patient) human body, cause the generation of life-threatening risk and so on accident, the administration instrument for medical use that uses safely easily can be provided.

In addition, the administration instrument for medical use of claim 32 of the present invention, be on the basis of the administration instrument for medical use that claim 27 is put down in writing, above-mentioned aerofluxus informs that mechanism has: the 2nd switch that detects the situation in (being contained in) administration instrument for medical use body that cartridge is fixed on; When this switch detects situation about cartridge being fixed in the administration instrument for medical use body, produce and remind dispensing person to carry out the exhaust sound signal generation of the acoustical signal of bleeding; Carry out the speaker that the acoustical signal of above-mentioned bleeding is sounded by prompting, when cartridge being fixed in the administration instrument for medical use body, make it send the sound of reminding dispensing person to carry out bleeding.

Therefore, because being sent, it reminds the sound that carries out bleeding, so, concerning dispensing person (patient), it is recognized can prevent in advance aerofluxus: dispensing person forgets before dispensing and carries out bleeding, therefore, bring very big influence for dispensing person's (patient) human body, cause the generation of life-threatening risk and so on accident, the administration instrument for medical use that uses safely easily can be provided.

In addition, the administration instrument for medical use of claim 33 of the present invention possesses: the entry needle contact detecting that detects entry needle and contact skin situation; Detect the injection detection of end portion of injection end situation; Detect the injection liquid measure test section of the injection liquid measure of dispensing; The injection liquid measure record portion of the injection liquid measure of record dispensing; Control above-mentioned injection liquid measure test section and above-mentioned injection liquid measure record portion, detect the situation that injection finishes in above-mentioned injection detection of end portion, and when above-mentioned entry needle contact detecting detects the situation of entry needle and contact skin, the control part of the injection liquid measure of record dispensing.

Therefore, owing to only detecting the injection end, when while entry needle and contact skin, write down the injection liquid measure of above-mentioned detection, so, resume in the time of not keeping aerofluxus, resume in the time of keeping only actual the dispensing reliably, the injection liquid measure that can solve when just being connected in the bleeding that must carry out before the dispensing is also charged to memorizer, reduced to trick the memory span of storage part, or confirm dispensing person's (patient) diagnostic result and dispensing resume in the past the doctor, determine the occasion of later Therapeutic Method, in fact the dispensing but think by mistake and offerd medicine, therefore, bring very big influence for dispensing person's (patient) human body, cause the variety of issue of life-threatening risk and so on, can obtain to promote more reliably the administration instrument for medical use of doctor's Therapeutic Method.

In addition, the administration instrument for medical use of claim 34 of the present invention is on the basis of the administration instrument for medical use that claim 33 is put down in writing, and has: the calendar portion that produces present date and time information; Produce the clock portion of present time information, above-mentioned control part when detecting the situation that injection finishes, date when the record injection finishes, constantly.

Therefore, owing to make it only when detecting the injection end, when entry needle and contact skin, write down the injection liquid measure of above-mentioned detection, date, constantly, so, resume in the time of not keeping aerofluxus, resume in the time of keeping only actual the dispensing reliably, can solve the injection liquid measure when just being connected in the bleeding that to carry out before the dispensing, date, time also is logged on the memorizer, reduced to trick the memory span of storage part, or confirm dispensing person's (patient) diagnostic result and dispensing resume in the past the doctor, determine the occasion of later Therapeutic Method, in fact not the dispensing but misidentification (judgement) for having offerd medicine, therefore, bring very big influence for dispensing person's (patient) human body, cause the variety of issue of life-threatening risk and so on, can obtain to promote more reliably the administration instrument for medical use of doctor's Therapeutic Method.

In addition, the administration instrument for medical use of claim 35 of the present invention, be on the basis of the administration instrument for medical use that claim 33 is put down in writing, injection liquid measure when having the injection liquid measure that display setting will offer medicine and the display part of the injection liquid measure of record when injection finishes.

Therefore, owing to make it only when detecting the injection end, when entry needle and contact skin, the injection liquid measure that shows above-mentioned detection, so, resume in the time of not keeping aerofluxus, resume in the time of keeping only actual the dispensing reliably, injection liquid measure when the energy solution just is connected in the bleeding that must carry out before the dispensing also shows, or confirm dispensing person's (patient) diagnostic result and dispensing resume in the past the doctor, determine the occasion of later Therapeutic Method, in fact the dispensing but think by mistake and offerd medicine, therefore, bring very big influence for dispensing person's (patient) human body, cause each (kind) kind problem of life-threatening risk and so on, can obtain to promote more reliably the administration instrument for medical use of doctor's Therapeutic Method.

In addition, the administration instrument for medical use of claim 36 of the present invention is on the basis of the administration instrument for medical use that claim 35 is put down in writing, and above-mentioned display part also shows above-mentioned date, constantly except the injection liquid measure of record when above-mentioned injection finishes.

Therefore, owing to make it only when detecting the situation that injection finishes when entry needle and contact skin, the injection liquid measure that shows above-mentioned detection, date, constantly, so, resume in the time of not keeping aerofluxus, resume in the time of keeping only actual the dispensing reliably, can solve the injection liquid measure when just being connected in the bleeding that to carry out before the dispensing, date, also show constantly, or confirm dispensing person's (patient) diagnostic result and dispensing resume in the past the doctor, determine the occasion of later Therapeutic Method, in fact the dispensing but think by mistake and offerd medicine, therefore, bring very big influence for dispensing person's (patient) human body, cause the variety of issue of life-threatening risk and so on, can obtain to promote more reliably the administration instrument for medical use of doctor's Therapeutic Method.

In addition, the administration instrument for medical use of claim 37 of the present invention, be on the basis of the administration instrument for medical use that claim 33 is put down in writing, above-mentioned entry needle contact detecting has: entry needle thrust entry needle around in the ring-type or the Semicircular contact detection parts that slide; The 3rd switch that moves owing to the slip of these contact detection parts.

Therefore, can be with the situation of simple structure detection entry needle and contact skin.

In addition, the administration instrument for medical use of claim 38 of the present invention, be on the basis of the administration instrument for medical use that claim 33 is put down in writing, above-mentioned entry needle contact detecting have be arranged on contact skin portion with entry needle with the 3rd switch on the one side, that move when thrusting skin with entry needle when the dispensing.

Description of drawings

Fig. 1 is the axonometric chart of the administration instrument for medical use of embodiments of the invention 1.

Fig. 2 blocks the axonometric chart that the part of this administration instrument for medical use is represented.

Fig. 3 is the actual axonometric chart that grasps the state of this administration instrument for medical use of expression.

Fig. 4 is the axonometric chart of the administration instrument for medical use of embodiments of the invention 2.

Fig. 5 is the partial sectional view of this administration instrument for medical use.

Fig. 6 is the detail perspective view of this administration instrument for medical use.

Fig. 7 is the entry needle of expression administration instrument for medical use of the present invention and the sketch map of the details of the size relationship that contacts skin portion.

Fig. 8 is the axonometric chart that the cutting-out part of the administration instrument for medical use of embodiments of the invention 3 is used to illustrate internal structure.

Fig. 9 is the axonometric chart that the position expression operating principle that is used to illustrate this administration instrument for medical use, expression dispensing button (or injection button) and push rod concerns.

Figure 10 is the axonometric chart that the position expression operating principle that is used to illustrate this administration instrument for medical use, expression dispensing button (or injection button) and push rod concerns.

Figure 11 is the partial sectional view of the cartridge installment state of this administration instrument for medical use of expression.

Figure 12 is the figure of expression position relation on this administration instrument for medical use, the testing agency when entry needle is not installed and injection button.

Figure 13 is the figure of expression position relation on this administration instrument for medical use, the testing agency when entry needle has been installed and injection button.

Figure 14 be expression on this administration instrument for medical use, the testing agency when entry needle is not installed and the fixing figure of the position relation of cancel system.

Figure 15 be expression on this administration instrument for medical use, the testing agency when entry needle has been installed and the fixing figure of the position relation of cancel system.

Figure 16 is the axonometric chart of the preceding administration instrument for medical use of the installation entry needle of embodiments of the invention 4.

Figure 17 is the partial sectional view of this administration instrument for medical use.

Figure 18 is the block chart of this administration instrument for medical use.

Figure 19 is the block chart that is used to illustrate this administration instrument for medical use.

Figure 20 is the axonometric chart of the administration instrument for medical use of embodiments of the invention 5.

Figure 21 is the partial sectional view of this administration instrument for medical use.

Figure 22 is the axonometric chart of administration instrument for medical use of the modified example of embodiments of the invention 5.

Figure 23 is the partial sectional view of this administration instrument for medical use.

Figure 24 is the axonometric chart of the existing administration instrument for medical use of expression.

Figure 25 is the axonometric chart of existing other administration instrument for medical use of expression.

The front view of the existing administration instrument for medical use of Figure 26.

Figure 27 is the vertical view of the part section of the existing administration instrument for medical use of expression.

Figure 28 is used to illustrate the block chart of existing administration instrument for medical use.

Figure 29 is the cutaway view of the mechanism that finishes of the detection dispensing of the existing administration instrument for medical use of expression.

Figure 30 is that the cutaway view of the mechanism of liquid measure is injected in the detection of the existing administration instrument for medical use of expression.

Figure 31 is that the side view of the mechanism of liquid measure is injected in the detection of the existing administration instrument for medical use of expression.

Figure 32 is the block chart that is used to illustrate existing administration instrument for medical use.

Figure 33 is the axonometric chart of the operating state of the existing administration instrument for medical use of expression.

Figure 34 is the axonometric chart of other operating state of the existing administration instrument for medical use of expression.

The specific embodiment

Embodiment 1

This embodiment 1 is corresponding to the invention of claim 7 with claim 1, because the device that constitutes makes the direction of push injection button different with the direction that entry needle thrusts skin, so, when the operation injection button, can not make entry needle thrust deeplyer.

Below, with Fig. 1 to Fig. 3 embodiments of the invention 1 are described.Fig. 1 is the axonometric chart of outward appearance of the administration instrument for medical use of expression embodiments of the invention 1, Fig. 2 is the axonometric chart that cuts open a part, expression internal structure of the administration instrument for medical use of embodiments of the invention 1, and Fig. 3 is the actual axonometric chart that grasps the state of this administration instrument for medical use of expression embodiments of the invention 1.

In Fig. 1, the 1st, the administration instrument for medical use body, the 2nd, injection, the 3rd, injection button, the 4th, entry needle, the 6th, contact skin portion, the 7th, cartridge, the 8th, liquid crystal display part, the 9th, dosage is adjusted knob.In addition, constitute injection button 3, make its to the direction push injection button of the bearing of trend approximate vertical of entry needle 4.If it is not parallel with the bearing of trend of entry needle 4 to be pressed into the direction of this injection button 3, then be not limited to vertical direction, if the direction of the pain of energy reduction of patient health then is that other angle also has no relations.

The dosing sequence of injection is, at first, cartridge 7 is arranged in the administration instrument for medical use body 1, and entry needle 4 is installed, and in order to set the amount of injection 2 of planning dispensing, shown in the arrow among the figure, adjusts knob 9 to the right or to the anticlockwise dosage.Then, make entry needle towards directly over, push injection button 3 comes out until the front end of injection 2 from entry needle 4, carries out aerofluxus.After aerofluxus is finished, as shown in Figure 3, hold administration instrument for medical use with hands 19, make the contact skin of contact skin portion 6 and dispensing affected part on one side, entry needle 4 is thrust skin on one side, penetrate button 3 with forefinger 18 to direction of arrow one side of Fig. 3 pressure injection, Yi Bian offer medicine.

Then, with Fig. 2 the establishing method of injection liquid measure and the structure that injection 2 is gone out from entry needle 4 when pushing injection button 3 described above are described.

At first, the establishing method to the injection liquid measure describes.Dosage is adjusted knob 9 and sleeve 10, though direction of rotation has been fixed, glide direction is not fixed.In addition, sleeve 10 and plunger 15 usefulness one body component that passes via movable part 14 inside constitute.Be processed with in movable part 14 female thread 16 that can close with sleeve 10 screw threads knots (revolving) in the inboard of movable part 14, the parts in the movable part 14 of entering into of sleeve 10 are processed with the external screw thread 16 that can close at movable part 14 female threads knots (revolving).

In addition, plunger 15 is made of the parts different with the plunger 20 in the cartridge 7, can separate with plunger 20.Be provided with rubber at the front end of plunger 20 and make, so that its extruding-injection liquid 2 in cartridge 7, the plunger 21 that is fixed together with plunger 20.In addition, structure is that the slippage of movable part 14 is always certain owing to limit with spring 17.

Now, if adjust knob 9 to the direction rotation dosage that increases dosage, then plunger 15 direction to entry needle from movable part 14 is extended.So, plunger 15 and be not that the distance of leaving of the plunger 20 of one shortens with it.In addition, 20 of plungers otherwise just do not moved by plunger 15 pushing.And the slippage of the movable part 14 during owing to push injection button 3 is certain all the time, so, the injection liquid measure the when distance of the pushing plunger 20 of plunger 15 is dispensing.That is to say that it doesn't matter with the injection liquid measure of offeing medicine, the stroke of the injection button during dispensing is identical all the time, and dosage is determined by the slippage (てろ) of coming out from movable part 14 of plunger 15.

Below, to when having pushed injection button 3, the structure that injection 2 is gone out from entry needle 4 describes.In Fig. 2, if to direction of arrow push injection button 3, the tooth bar 11 of then using the parts with its one to constitute also slides to the direction of arrow.On tooth bar 11 and end faces injection button 3 opposite sides, be provided with spring (injection button reset portion) 17, it is compressed when push injection button 3, if stop push injection button 3, then by its elastic reset.Therefore, if stop push injection button 3, then injection button 3 turns back to original position by the reset force of spring 17.

Be provided with type tooth 11a in the side of tooth bar 11, be provided with gear (the 1st gear) 12, itself and this type tooth 11a is meshed, be provided with gear 13 (the 2nd gear) in addition, itself and gear 12 are meshed.In addition, be provided with the type tooth, itself and gear 13 are meshed in the side of movable part 14.These tooth bars 11, gear 12, gear 13 constitute the pushing force transfer part that is delivered to plunger 15 with the pushing force of injection button 3, with the angle different with the bearing of trend of entry needle 4.

If push injection button 3, then tooth bar 11 slides, and gear 12 is to rotation counterclockwise, and gear 13 rotates to clockwise direction.So movable part 14 becomes one with plunger 15, slide to the direction of pushing plunger 20 and plunger 21.So the direction of the injection 2 of plunger 21 in compacted medicament fluid cylinder 7 is slided, and extrudes compressed injection 2 from the front end of entry needle 4.

Administration instrument for medical use shown in the present embodiment 1, as previously discussed, its structure is not transmitted with the power of forefinger 18 when the direction of arrow push injection button 3 of Fig. 3, so that darker when entry needle 4 thrust skin and can not thrust skin than at first.

Therefore,, when throwing in medicinal liquid, can prevent to transmit the power of push injection button, deeper thrust skin when originally entry needle being thrust skin, can throw in medicinal liquid with stable status not make it according to present embodiment 1.

Embodiment 2

This embodiment 2 is corresponding to the invention of claim 10 with claim 8, because when throwing in medicinal liquid, can make with the skin portion that contacts of contact skin and slide and be fixed to the length direction of entry needle, so, can go into the amount of skin with the kind of entry needle, big or small metering needle spine irrespectively, be certain value, can alleviate the pain when throwing in medicinal liquid.

Below, with Fig. 4 to Fig. 7 embodiments of the invention 2 are described.Fig. 4 is the axonometric chart of outward appearance of the administration instrument for medical use of expression the 2nd embodiment of the present invention, Fig. 5 is the partial sectional view of the administration instrument for medical use of embodiments of the invention 2, Fig. 6 is the detailed structure axonometric chart of the administration instrument for medical use of embodiments of the invention 2, and Fig. 7 is the entry needle of administration instrument for medical use of the present invention and the sketch map of the relation that contacts skin portion.

In Fig. 4, the 31st, the administration instrument for medical use body, the 32nd, injection, the 33rd, injection button, the 34th, entry needle, the 36th, with the skin portion that contacts of contact skin, the 37th, the contact parts of skin is adjusted button, the 40th, contact skin width adjustment part (contact skin area changing unit, contact skin width adjusting portion), the 41st, contact skin width adjustment button.Contact skin width adjustment button 37 is made one with contacting skin portion 36, and making can be to the slip of direction arbitrarily of arrow 43.

In Fig. 5, contact skin portion 36 with contact parts of skin adjustment button (contacting the skin site changing unit) 37 and makes one, on contact parts of skin adjustment button 37, projection (convex form) 38 is set, concave shape (groove) 39 is set on the side of administration instrument for medical use body 31, as chimeric fixed part, so that contact skin portion 36, contact parts of skin adjust button 37 and can be parked in desirable position, and fixing.

Therefore, as shown in Figure 4, contact skin portion 36, contact parts of skin adjust button 37 relatively entry needle 34 be altered to and be fixed on the position of desirable concave shape of arrow 43 directions, as shown in Figure 7, entry needle 34 and to contact skin portion 36 be desirable stagewise size relationship 42.

When dispensing the time, all use the occasion of similar entry needle 34 grades at every turn, after the size relationship 42 with the contact skin portion 36 of relative entry needle 34 changes to its best position, if be fixed, then can both offer medicine with identical state at every turn, because it is certain entering by the length of the entry needle 34 of dispensing person's (patient) skin, so, can offer medicine to high reliability.

In Fig. 6, contact skin width adjustment part 40 with contact skin width adjustment button 41 and make one, by making it to the direction of arrow 44, the i.e. slip of top in figure, make contact skin portion 36 wideer, when dispensing, when dispensing person makes contact skin portion 36 with contact skin, can under the state that keeps (ホ one Le De) to feel better, has sense of stability, offer medicine.

Therefore, according to present embodiment 2, because no matter the kind of entry needle, size are how, the length that makes entry needle enter skin is certain, makes it can change the position of contact parts of skin, can also increase the area of contact skin, even so a kind of difference of kind of because entry needle can be provided, its length is different, the amount that enters skin of entry needle does not have deviation yet, can make dispensing in stable condition, the administration instrument for medical use that reliability is high.

And, by replacing projection and groove, make it contact skin portion 36 can be fixed on position arbitrarily, also can infinitely regulate the position of contact skin portion 36.

In addition, because employing internal structure similarly to Example 1 is different with the direction that entry needle 204 thrusts skin by the press direction that makes injection button, so, also can alleviate pain on injection.

Embodiment 3

This embodiment 3 is corresponding to the invention of claim 26 with claim 11, make it when entry needle is not installed on the dispensing apparatus body, can not the push injection button or the dispensing button, in addition, even in the occasion of throwing in the mixed type medicine, owing to make it when entry needle is not installed on the dispensing utensil, can not hybrid medicine, can not be accommodated in the dispensing apparatus body, so, can prevent liquid leakage, adverse current, can also prevent that the glass tubing of putting into medicinal liquid from crackle occurring, breaking etc.

Below, with Fig. 8 to Figure 15 embodiments of the invention 3 are described.Fig. 8 is a part of downcutting the administration instrument for medical use of embodiments of the invention 3, the axonometric chart of representing its internal structure.Fig. 9 is the axonometric chart of the operation principle when the administration instrument for medical use that present embodiment 3 has been installed being described with being used for understanding easily, and Figure 10 is the axonometric chart that is used for illustrating the operation principle when entry needle is not installed equally with understanding easily.Figure 11 is cutaway view installation action, that cut a part of cartridge that is used to illustrate the administration instrument for medical use of present embodiment 3.Shown in Figure 12 is testing agency administration instrument for medical use, when entry needle is not installed of present embodiment 3 and the location diagram of injection button.Shown in Figure 13 is the figure of position administration instrument for medical use, the testing agency when entry needle has been installed and injection button the relation of present embodiment 3.Shown in Figure 14 is testing agency administration instrument for medical use, when entry needle is not installed and the location diagram fixing, cancel system of present embodiment 3.Shown in Figure 15 be embodiments of the invention 3 administration instrument for medical use, the testing agency when entry needle has been installed fixes, the location diagram of cancel system.

In Fig. 8, the structure to injection describes simply.Cartridge 52 is fixed in dispensing utensil 66 bodies, disposable entry needle 51 is installed on cartridge 52.In occasion, regulate dosage and adjust the amount of knob 56 for wanting to throw in to the human body dispensing.Though plunger 55 can not be fixed together with dosage setting knob 56 with the relative rotation, because glide direction is slided relatively, so if rotation dosage setting knob 56, then plunger 55 can be flexible to the direction parallel with entry needle.When setting the increase dosage for, plunger 55 moves to its preceding extreme direction along the direction identical with entry needle.

Then, if pushing dispensing button 54, then the one-piece type drive rod 57 of injection button is to the direction action identical with the press direction of injection button.The side part of the one-piece type drive rod of injection button (injection button, tooth bar) 57 is and gear (the 1st gear) 60 meshed gears (tooth bar).In addition, gear (the 2nd gear) 59 and gear 60 engagements are also with gear (tooth bar) engagement of the leading section of plunger 55.Have medicinal liquid at the front end of plunger 55 and extrude plunger 53, contact with medicinal liquid in the cartridge 52.The one-piece type drive rod 57 of these injection buttons, gear 60, gear 59 constitute the drive division of plunger 55.

Now, as if the direction of arrow push injection button 54 to Fig. 8, then the one-piece type drive rod 57 of injection button makes gear 60 to turning clockwise.Because the rotation of gear 60, gear 59 be on one side to rotation counterclockwise, Yi Bian make plunger 55 to the length direction of entry needle 51, promptly, the left side of plunger 55 in Fig. 8 moved.So the medicinal liquid that is arranged on the leading section of plunger 55 is extruded plunger 53 can extrude medicinal liquid in the cartridge 52 from entry needle 51, offers medicine.

Have, in Fig. 9, the leading section of push rod 58 (L font leading section) 58a is in the resin portion 82 that is clipped in entry needle 51 and the state between the cartridge 52 again.At this moment, if to direction of arrow push injection button 54, the one-piece type drive rod 57 of injection button is in the state that can freely move in the mate 61 of push rod 58.The dispensing action suppressing portion that the dispensing that one-piece type drive rod 57 formations of these push rods 58 and injection button suppress to cause owing to the push injection button is moved.In addition, the leading section of push rod 58 (detection part) 58a is with the body one of push rod 58, installing when making the entry needle 51 of one with resin portion 82, applies power to the direction of entry needle 51 all the time by spring 63.This spring (spring members) 63 and push rod 58 constitute entry needle installation and measuring portion.

Then, if as shown in figure 10, unload entry needle 51 from cartridge 52, then the part of push rod 58 is because the power of spring 63 and to the direction of entry needle 51, promptly move in the left side in Fig. 9.So the mate of push rod 58 61 breaks away from injection buttons part 62 one-piece type drive rod 57 and its engagement, to direction of arrow push injection button 54 time, mate 62 immediately with the contacts side surfaces of push rod 58, it can not be moved freely.That is to say,, then can not push injection button 54 at all if unload entry needle 51.So, present embodiment 3, the part of the leading section 58a that can detect at push rod 58 is that entry needle has been installed, and entry needle still is not installed.

Below, be example so that medicament and medicinal liquid dissolve blended cartridge, to cartridge 52 being fixed on the dispensing apparatus body 66, the method that is accommodated in the dispensing apparatus body 66 describes with Figure 11.

In Figure 11, lift cartridge gland (door of open and close type) 67 state upward to the dotted line part of figure, insert cartridge 52 to the direction of the arrow of figure.After the insertion, close cartridge gland 67 downwards.Then, under the state that is covered with needle cap 65, entry needle 51 is tightened on the front end threaded portion of cartridge 52.

Then, catch jut 67a, its direction to dosage setting knob 56 is slided.So at first, the rear portion rubber section 70 of cartridge 52 inside contacts with dissolving part 72 in the dispensing apparatus body 66.If further make its slip, then dissolve part 72 pushing rear portion rubber section 70, therefore, the medicinal liquid 71 that is filled in later half chamber makes to separate and moves with the direction of rubber 69 to preceding half Room of taking in medicament 68.

And, move to injection groove 77 if separate with rubber 69, then medicinal liquid 71 flow into medicament 68 1 sides by injecting groove (large-diameter portion) 77.If catch jut 67a again, its direction to dosage setting knob 56 is slided, then all from injecting the intracavity that groove 77 flow into medicament 68, final medicament 68 and medicinal liquid 71 mix medicinal liquid 71.And, if catch jut 67a, it is further slided to the direction of above-mentioned dosage setting knob 56, then in rear portion rubber section 70 when separating with rubber 69 contacts, can not slide again, and be fixed.In the explanation of Figure 15, will be described this fixed structure.And under this state, cartridge 52 is accommodated in the dispensing apparatus body 66.

Below, Figure 12 and Figure 13 are when at length having represented to install entry needle and the figure of the relation of testing agency when entry needle is not installed and the one-piece type drive rod 57 of injection button.State when the state when Figure 12 represents entry needle is not installed, Figure 13 have represented to install entry needle.And " entry needle " in the explanation of Figure 12 to Figure 15 is meant the entry needle 51 that is covered with under medicated cap 65 states.

In Figure 12 (a), cartridge 52 rests on the state of the front end that is positioned at slide bar 75.And push rod 58 is positioned at the top of slide bar 75, and its structure can make it move freely abreast with the installation direction of entry needle above slide bar 75.

In addition, Figure 12 (b) is the figure that sees Figure 12 (a) from downside, is provided with otch 78 and otch 83 that pushing and withstanding head 76 enters size on sliding part 75.In addition, on the position identical, also be provided with otch 73 on the push rod 58 with otch 83.

In addition, central part at sliding part 75 and push rod 58, on their eclipsed respectively parts, be provided with the otch 81 of same width, have again, in above-mentioned otch 81, be provided with sliding part 75 overlapping gauges parallel, that can be contained in sliding part 75 and push rod 58 in spring 63.And spring 63 is in the inboard of above-mentioned otch 81, is fixed on from the outstanding projection 79 of sliding part 75 with between the outstanding projection 80 of push rod 58.In addition, at this moment, it is that the one-piece type drive rod 57 of injection button can not freely-movable in engaging piece 61 that the engaging piece 61 of push rod 58 closes with the position of the one-piece type drive rod 57 of injection button.That is to say, be can not the push injection button state.

Then, in Figure 13, when entry needle being installed on the cartridge 52, the front end 58a of push rod 58 is pushed to the position of the front end of sliding part 75.So the spring 63 in the otch 81 is compressed from the state of Figure 12 (b), and keep this state.On the other hand, the part of the engaging piece 61 of push rod 58 is that the one-piece type drive rod 57 of injection button can move freely with the pass, position of the one-piece type drive rod 57 of injection button.That is to say, be the state of energy push injection button.

Below, with Figure 14 and Figure 15, to when on cartridge 52 entry needle being installed, cartridge 52 can not be accommodated in the dispensing apparatus body 66 and describe with the principle that can be accommodated in the dispensing apparatus body 66 when mounted.

In Figure 14, when entry needle was not installed on the cartridge 52, the leading section 58a of push rod 58 compared with the front end of sliding part 75, more stretches out to the direction of entry needle.At this moment, push the pushing and withstanding head 76 of the application of force upward by the unshowned spring of figure, with otch (peristome) 73 on the perforation push rod 58 and the state of otch (peristome) 83 these two otch (peristome) on the sliding part 75, sliding part 75 is blocked, it can not can not be moved to the direction opposite with it to the direction of entry needle.And pushing and withstanding head 76 is configured to vertical with push rod 58 with sliding part 75, and, in Figure 14, Figure 15 the state that pushes upward all the time with spring.

Below, in Figure 15, if entry needle is installed on the cartridge 52, then the leading section 58a of push rod 58 is identical with the front position of sliding part 75.Entry needle is being tightened in (installation) process on cartridge 52, because the sloping portion 76a of the interior side direction direction of arrow pushing pushing and withstanding head 76 of the otch 73 of push rod 58, so pushing and withstanding head 76 little by little is pressed towards the below.Have, if tighten entry needle, then the otch 73 on the push rod 58 is to the direction motion of the rake 76a that further presses pushing and withstanding head 76 downwards again.And when fully entry needle being installed on the cartridge 52, the otch 73 on the push rod 58 is depressed the front end of pushing and withstanding head 76 and cross, and pushing and withstanding head 76 is arranged in the otch 83 of sliding part 75, for block the state of sliding part 75 to the direction opposite with arrow.

In order will cartridge 52 to be accommodated in the dispensing apparatus body 66,, the cartridge 52 that is configured on the sliding part 75 moves it while being slided to the direction of arrow with sliding part 75 from this state.

In fact,, make its form that moves with the form that is fixed in the cartridge gland 67, only its principle is described at this though adopt as illustrated in fig. 11.

Now, if make cartridge 52 on the sliding part 75 with sliding part 75 to the direction of arrow, promptly move to the right side of Figure 14, otch 83 contacts with the rake 76a of pushing and withstanding head 76.If it is further moved to the direction of arrow from this point, then pushing and withstanding head 76 is pressed onto downside by sliding part 75, if sliding part 75 further moves to the direction of arrow, then the front end of pushing and withstanding head 76 is entrenched in the otch 78 of sliding part 75, meanwhile, the front end of pushing and withstanding head 76 in this position, can not move it to the direction opposite with arrow sliding part 75 fastenings.

That represent this state is Figure 13 (a), in order to remove this state, owing to reach the outside of dispensing apparatus body 66 for the sliding knob of one as knob with pushing and withstanding head 76, so, state sliding knob by pressing lightly with finger forcibly downwards, can do and remove operation.

In addition, this in the dispensing apparatus body, mix two kinds of medicinal liquids or as illustrated in fig. 11 like that the occasion of dissolving confection and medicinal liquid as if entry needle is not installed, then can not be accommodated in it in apparatus body of offeing medicine, so, can not make its mixing.

So, according to present embodiment 3, because when its structure is not installed on the dispensing utensil at entry needle, can not the push injection button or the dispensing button, extruding the plunger of medicinal liquid is failure to actuate, in addition, in occasion as the dispensing utensil of throwing in the mixed type medicine, because its structure can not mixed when entry needle is installed on the dispensing utensil, so, be not installed in the occasion of dispensing on the utensil at entry needle, even want mistake with injection button or dispensing button down, it can not be depressed, can prevent that the liquid leakage that causes owing to maloperation or medicinal liquid glass tubing etc. from breaking.

Embodiment 4

This embodiment 4 is corresponding to the invention of claim 32 with claim 27, is on the administration instrument for medical use that has added electronic installation, makes its display alarm note carrying out deflated warning when injecting.

Below, with Figure 16 to Figure 18 embodiments of the invention 4 are described.Figure 16 represents the axonometric chart of the outward appearance before the installation entry needle of administration instrument for medical use of embodiments of the invention 4, and Figure 17 is the partial sectional view of the administration instrument for medical use of embodiment 4, and Figure 18 is to be the block chart at center with microprocessor 25.

In Figure 16, the 102nd, this body and function medicated cap, the 103rd, the administration instrument for medical use body, the 104th, display part, the 105th, dosage is set indicator, the 106th, injection button, the 127th, speaker.

At first, the situation to first use administration instrument for medical use describes.In Figure 16, Figure 17, if unload this body and function medicated cap 102 from administration instrument for medical use body 103, the switch (the 1st switch) 110 that then is arranged on the administration instrument for medical use body 103 becomes disconnection (OFF) from connecting (ON).At this moment, the repertoire that shows on display part 104 shows all to be lighted, after spending several seconds, and only displaying calendar, time and dosage.

In addition, in Figure 17, the 109a of the portion that screws of administration instrument for medical use body 103 and the part of 109b are fastened togather with screw thread separately.The part that makes above-mentioned revolving (spiral shell) close the 109a of portion, 109b is rotated to the direction that unscrews, and can make its state from an administration instrument for medical use body 103 be separated into two and screw body 103a, 103b.After the separation, cartridge is fixed on screws on the body 103a, the part engaging that reuse screws the 109a of portion, 109b screws

body

103a and 103b, and it is rotated to the direction that fixedly screws

body

103a and 103b, is the form of original administration instrument for medical use 103.So the cartridge that is arranged on administration instrument for medical use 103 inboards detects with switch (the 2nd switch) 111 and becomes connection from disconnection.

When becoming this state, begin the literal that flicker shows " aerofluxus " on the display part 104.When carrying out above-mentioned flicker demonstration, send the sound of " asking aerofluxus " from speaker 127.Dispensing person installs entry needle 101, makes entry needle 101 towards the top, makes injection button 106 under the state of below, and push injection button 106 is till medicinal liquid 126 comes out from entry needle 101.So switch 113 (being equivalent to the switch 413 among the described Figure 32 of prior art) is connected once, disconnects once more.Also can utilize the condition judgement aerofluxus of this switch 113 to finish, microprocessor (aerofluxus shows signal generating unit) 125 is judged to be aerofluxus to be finished.

And, last till that with the flicker of " aerofluxus " literal of above-mentioned record with the report of sound microprocessor 125 is till aerofluxus finishes with the condition judgement of switch 113.In addition, the microprocessor (exhaust sound generating unit) 125 by Figure 18 sends the state judgement of above-mentioned switch 110 and switch 111 and gives the display command of display part 104, the order of acoustic notifications.That is, these microprocessors 125, display part 104, speaker 127 constitute the aerofluxus informing portion.In addition, in Figure 18, the 123rd, the calendar of generation date and time information, the 124th, the clock of generation time information.

Below to above-mentioned cartridge 107 be fixed on state on the administration instrument for medical use 103, just the 2nd time later on the occasion of dispensing describe.If unload this body and function medicated cap 102 from administration instrument for medical use 103, the switch 110 that then is arranged on the administration instrument for medical use body 103 becomes disconnection from connection.At this moment, all functions that show on display part 104 show all to be lighted, spend several seconds after, only displaying calendar, time and dosage.

Then, flicker shows " aerofluxus " literal on display part 104, meanwhile, sends the sound of " asking aerofluxus " from speaker 127.Dispensing person installs entry needle 101, make entry needle 101 towards above, make injection button 106 under the state of below, push injection button 106 is till medicinal liquid 126 comes out from entry needle 101.So same with the occasion of above-mentioned first use, microprocessor 125 is observed the state of switch 113, finishes if be judged to be aerofluxus, then the literal of cancellation " aerofluxus " shows, the report of further using sound " to ask aerofluxus " also stops.

And, detect the mechanism of the injection liquid measure of the mechanism that injection finishes, the mechanism of detecting the injection liquid measure of dispensing, record dispensing, simultaneously record with detect injection liquid measure that injection liquid measure that injection finishes, detects dispensing detects simultaneously, date, constantly, the mechanism that shows, with described the same in prior art.

And, in the above description, remind deflated demonstration, except literal, also can use mark or figure.In addition, also can be with showing and one of any prompting dispensing person of sound carries out bleeding.

So, according to present embodiment 4, because when the body medicated cap of the part that unloads the installation entry needle that is installed with, cover the administration instrument for medical use body that entry needle is installed, make display part show the literal of " aerofluxus ", so, can make the dispensing person of medicinal liquid recognize the preceding bleeding of to offer medicine, can remind and do " aerofluxus " operation.

Embodiment 5

This embodiment 5 is corresponding to the invention of claim 38 with claim 33, and the administration instrument for medical use that has added electronic installation can be separated never and store this unbefitting situation of injection liquid measure that aerofluxus space-time is beaten mutually distinctively with original injection.

Below, with Figure 19 to Figure 23 embodiments of the invention 5 are described.Figure 19 is that the microprocessor 125 with the administration instrument for medical use of embodiments of the invention 5 is the block chart at center.In addition, Figure 20 is the axonometric chart of outward appearance of the administration instrument for medical use of expression embodiments of the invention 5, Figure 21 is its partial sectional view, and Figure 22 is the cutaway view of the administration instrument for medical use of another embodiment, and shown in Figure 23 is the partial sectional view of the administration instrument for medical use of Figure 22.

In Figure 20, the 102nd, the acupuncture treatment adnexa, 103 administration instrument for medical use bodies, the 104th, display part, the 105th, dosage is set indicator, the 106th, injection button.The structure of acupuncture treatment adnexa 102 can the direction to injection button 106 be slided when entry needle 101 is thrust skin.

In Figure 21, the length direction of acupuncture treatment adnexa 102 relative entry needles, shorter than entry needle, when being thrust skin, entry needle slides, make to be arranged on intrinsic switch (the 3rd switch) 109a and 109b connection.Because this

switch

109a and 109b connect, can make microprocessor 125 judge that entry needle has thrust this situation of skin.

In addition, dispensing detection of end mechanism, the switch that does not show in the drawings (being equivalent to the switch 113 of Figure 18 and the switch 413 of the described Figure 32 of prior art) is when once connecting the state that disconnects once more, to realize by being judged by microprocessor 125.That is to say, during

switch

109a and 109b connect, and, only when the state of described not shown switch finishes for dispensing, it is judged by microprocessor 125, will inject liquid measure and date, the moment and charge to memorizer 122.

On the other hand because when aerofluxus, make entry needle 101 towards above, make injection button 106 under the state of below, and carry out aerofluxus aloft, so acupuncture treatment adnexa 102 is failure to actuate, switch 109a and 109b keep the state that disconnects.At this moment, even push injection button 106, switch 113 were once being connected once more the end that disconnects, offers medicine,

switch

109a and 109b also are off-states, so microprocessor 125 is judged to be will not be injected liquid measure, date, resume constantly and charge to memorizer.So, can be only actually entry needle 101 thrust skin, when dispensing finishes, will inject liquid measure, date, the moment and charge to memorizer 122, and the administration instrument for medical use of the resume when not writing down aerofluxus as resume.And switch 109a and 109b also can be gone out by the SHAPE DETECTION of acupuncture treatment adnexa to be which 1.

Shown in Figure 22 is this

switch

109a and 109b to be concentrated into 1 version, in Figure 22, and the 140th, acupuncture treatment sense switch (the 3rd switch), the 103rd, the administration instrument for medical use body, the 104th, display part, the 105th, dosage is set indicator, the 106th, injection button.Acupuncture treatment sense switch 140 is that shake, that stable contact skin portion 141 is set at when dispensing dispensing apparatus body, the one side identical with entry needle 101 made.

In Figure 23, acupuncture treatment sense switch 140 is roughly connected when entry needle is thrust skin.Because the switch of this acupuncture treatment sense switch 140 is connection, so, microprocessor 125 is judged, entry needle has been thrust skin.

In addition, dispensing detection of end mechanism, same with the switch 413 of described Figure 27 in the prior art,, realize when once connecting the state that disconnects once more at the switch 113 of Figure 19 by judging by microprocessor 125.The testing agency of injection liquid measure is same with description in the prior art.That is to say, during the switch connection of acupuncture treatment sense switch 140, and, only when the state of switch 113 finishes for dispensing, it is judged by microprocessor 125 (control part), will inject liquid measure and date, constantly charge to memorizer (injection liquid measure record portion) 122.

On the other hand because when aerofluxus, make entry needle 101 towards above, make injection button 106 under the state of below, and carry out aerofluxus aloft, so acupuncture treatment sense switch 140 is the states that disconnect.Even switch 113 was once connected once more and disconnected, finishes for offeing medicine owing to push injection button 106 this moment, acupuncture treatment sense switch 140 also is an off-state, so microprocessor 125 is judged to be the resume that will not inject liquid measure, date, the moment and charges to memorizer 122.

So, can be only to thrust skin, when dispensing finishes, will inject liquid measure, date, the moment and charge to memorizer 122 as resume at entry needle, and the administration instrument for medical use of the resume when not writing down aerofluxus.And the position of acupuncture treatment sense switch 140 is more near entry needle 101, and the detection during entry needle 101 contact skins is effective more.

The present invention can be applied to employed administration instrument for medical use when injection injection liquid etc. is offerd medicine, and is the pain that can slow down by dispensing person, with the administration instrument for medical use of the safety and the best of offeing medicine reliably.

Claims

1. administration instrument for medical use is characterized in that:

Its structure is, in the occasion that cartridge will be fixed on the dispensing apparatus body,

If entry needle is not installed, then can not normally cartridge be accommodated in the dispensing apparatus body.

2. according to the administration instrument for medical use of claim 1, it is characterized in that:

Be a kind of in above-mentioned dispensing apparatus body, mix the dispensing utensil of multiple medicinal liquid or dissolving confection and medicinal liquid, adopt if the then immiscible structure of entry needle is not installed.

3. according to the administration instrument for medical use of claim 2, it is characterized in that:

Employing is in the occasion that cartridge will be fixed on the dispensing apparatus body, if entry needle is not installed, then the rear portion rubber section of above-mentioned cartridge contacts with the interior part of utensil of offeing medicine, and can not be in the structure of this cartridge slides within.

4. according to the administration instrument for medical use of claim 2, it is characterized in that:

Above-mentioned cartridge

Load different medicament or medicinal liquid in preceding half Room that above-mentioned entry needle side is installed with the later half chamber of its opposition side,

Above-mentioned preceding half Room has the internal diameter of a part and makes the large-diameter portion bigger than other internal diameter,

Above-mentioned rear portion rubber section be provided in above-mentioned cartridge with the end face that the opposite side of entry needle one side is installed on,

By this rear portion rubber section is pressed in this cartridge, separate and move to above-mentioned large-diameter portion separating of above-mentioned preceding half Room and later half chamber with rubber, mix above-mentioned medicament or medicinal liquid.

5. according to the administration instrument for medical use of claim 4, it is characterized in that:

Have be fixed on this dispensing apparatus body, owing to be mounted to above-mentioned cartridge slided in the dispensing apparatus body, therefore push the part that dissolves of above-mentioned rear portion rubber section.

6. according to the administration instrument for medical use of claim 1, it is characterized in that:

In the time of on cartridge being fixed on the dispensing apparatus body, on the position of the fixing above-mentioned cartridge of dispensing utensil base side, be provided with open and close type.

7. according to the administration instrument for medical use of claim 1, it is characterized in that:

Be provided with between the apparatus body in entry needle and dispensing and detect entry needle and whether be installed in entry needle installation and measuring portion on the dispensing utensil.

8. according to the administration instrument for medical use of claim 3, it is characterized in that:

Employing is fixed with the structure of sliding part, and this sliding part links with the entry needle installation and measuring portion that the detection entry needle is installed in the situation on the cartridge, is used to take in this cartridge it is slided in the dispensing apparatus body.

9. administration instrument for medical use according to Claim 8 is characterized in that:

Above-mentioned entry needle installation and measuring portion except being clipped in the leading section of the L font between this entry needle and the cartridge when entry needle is installed, sets with this sliding part is parallel at the downside of above-mentioned sliding part,

Have active force and the chimeric pushing and withstanding head of peristome that in above-mentioned sliding part and above-mentioned entry needle installation and measuring portion, forms by pushing,

Above-mentioned sliding part and above-mentioned entry needle installation and measuring portion are formed with above-mentioned peristome, so that do not installing under the state of above-mentioned entry needle, the position of peristome is overlapped, because this entry needle is installed, under the state of this entry needle installation and measuring portion dislocation, peristome is in different position mutually.