CN103384539B - Syringe pump - Google Patents

Abstract

The present invention provides a kind of and shortens its contracted length when cover members contract, it is thus possible to shorten the mobile member of syringe piston drive division to the distance closest to side, resettlement section, it is possible to seek the syringe pump of miniaturization.Syringe piston drive division (7) has: push injection device piston (202) and release the mobile member (10) of the medicine in syringe body (201)；Make mobile member (10) guiding elements (135) that is mobile and that guide to syringe body (201) side；Cover guiding elements, the cover component (800) that can shrink in the way of elastic deformation to syringe body side shifting along with mobile member, cover component (800) has multiple 1st male portion (811～816) and 1 the 2nd male portion (821,822,823) being formed between 2 continuous print the 1st male portion and adjacent two continuous print the 1st male portion, and the outside dimension of the 2nd male portion (821,822,823) is less than the outside dimension of the 1st male portion (811～816).

Description

Syringe pump

Technical field

The present invention relates to the syringe pump for carrying medicine etc. to patient.

Background technology

Syringe pump is such as concentrating therapeutic room (ICU) etc. to use, under normal conditions with 0.1～150mL/h Flow velocity, injection rate be not more than the value set by the scope of 999mL, high accuracy and long temporally patient is carried out anticancer The transfusion of the medicine such as agent, anesthetis, chemotherapy agent, blood transfusion etc., nutrient.The drug flux of syringe pump controls defeated with other Liquid pump is compared, more accurate, more useful.

That is, the syringe body using fixture to will be filled with medicine is arranged immovablely relative to syringe pump, injection Device pump push injection device piston and the medicine in syringe body is transported to exactly patient-side (with reference to patent documentation 1).

Prior art literature

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 2010-88564 publication

Summary of the invention

But, above-mentioned syringe pump is releasably fixed with the syringe with multiple collecting amount.This syringe Have and house the syringe body of medicinal liquid and for the syringe piston released by the medicinal liquid in syringe body, syringe body Having body flange, syringe piston has plunger flange.In the case of syringe is fixed on syringe pump, syringe body It is close to the inner peripheral surface of the recess of syringe pump, by the sliding part of syringe piston drive division by syringe piston to syringe Main body side little by little pushes, thus the medicine in supply syringe body.

Sliding part as the mobile member of this syringe piston drive division is made by utilizing motor and the feeding that rotates Leading screw, the structure that syringe piston is pushed to syringe body side.This feed screw is covered by the cover component of bellows.Should Cover component is arranged between sliding part and the resettlement section of syringe piston drive division, plays the anti-foam effect preventing medicinal liquid etc..

In such structure, before syringe piston is depressed, the corrugated tube of cover component extends and covers feeding silk Thick stick.Further, when syringe piston is pressed to syringe body side, sliding part to syringe body side shifting, therefore cover structure Part pressed by sliding part and elastic deformation shrink.

But, the complete holosystolic state of cover component is by extreme position time maximum for syringe piston pressure, is therefore being intended to In the case of making full use of the volume of syringe, if the length of cover component during this contraction is longer, then the utilization of syringe volume Deterioration of efficiency.If additionally, directly using such structure can hinder the miniaturization of syringe pump.

Therefore, it is an object of the invention to provide a kind of shorten its contracted length when cover members contract thus The mobile member that can reduce syringe piston drive division reaches the distance closest to side, resettlement section, it is possible to use 2.5mL, 5mL, The syringe of the collecting amount of 10mL, 20mL, 30mL, 50mL, it is possible to seek the syringe pump of miniaturization.

The syringe pump of the present invention, its for install be filled with the syringe of medicine and by the described medicine in described syringe Thing carries to patient, and wherein, this syringe pump has syringe configuration part and the use of the syringe body setting described syringe In the syringe piston drive division of the syringe piston pushing described syringe, described syringe piston drive division has: mobile Component, it, to make described syringe piston can hold described syringe piston in the way of loading and unloading, makes described syringe piston relative The described medicine in described syringe body is released in described syringe body；Guiding elements, it makes described mobile member move Move and described mobile member is guided to described syringe body side；Cover component, it covers described guiding elements, along with described shifting Dynamic component can shrink to described syringe body side shifting in the way of elastic deformation, and described cover component is lived along described syringe The length direction of plug is in series formed with multiple continuous print the 1st male portion and the 2nd male portion, the outer diameter ruler of described 2nd male portion The very little outside dimension being set smaller than described 1st male portion.

According to such scheme, by shortening its contracted length when cover members contract, it is thus possible to shorten syringe The mobile member of piston drive division is to the distance closest to side, resettlement section, it is possible to seek miniaturization.That is, if cover component is moved structure Part pressing and shrink, the 1st male portion in the both sides being positioned at the 2nd male portion can be with the state (the 2nd male portion enrolled 2 male portion enter the state of the 1st male portion) shrink, therefore when cover component is retracted, it is possible to shorten when it shrinks Total length, can shorten mobile member to the distance closest to side, resettlement section, it is possible to seek effective utilization of syringe volume.

Preferably, described in two described 2nd male portion being continuously formed and be adjacent to be formed continuously with them one 1st male portion is formed as the most continuous.

According to such scheme, it is possible to obtain and can obtain enough length when elongation and most can shorten length when shrinking The cover component of size.

Preferably, the one end of described cover component is connected with the side surface part of described syringe configuration part, described cover component The other end be connected with the side of described mobile member.

According to such scheme, it is possible in the way of the side surface part of syringe configuration part and mobile member are connected, cover whole Individual guiding elements.

It is preferably, is provided with in the side of described mobile member and is in the described cover component of contraction state at least for storage The incorporating section of a part.

According to such scheme, it is possible to the incorporating section being accommodated in mobile member at least partially of the cover component after shrinking In, therefore, it is possible to shorten mobile member to the distance closest to side, resettlement section.

Preferably, described cover component has anti-foam structure, and described guiding elements is for the action by utilizing motor Carry out rotating the feed screw carrying described mobile member.

According to such scheme, cover component is utilized not have the situation being attached to feed screw from outside liquor etc..

Preferably, the upper part in described main body is configured with the display part of display information and has the operating surface of operation button Plate portion, the lower part in described main body is configured with described syringe configuration part and described syringe piston drive division.

According to such scheme, medical practitioner can confirm the information of the display part of the upper part of main body, on one side Carry out the transfusion operation from injector delivery medicine.Further, medical practitioner can confirm upper part aobvious of main body Show the information in portion while operating the operation button in guidance panel portion.

The present invention can provide a kind of following syringe pump: shrinks long by shortening it when cover members contract Degree, it is thus possible to shorten the mobile member of syringe piston drive division to the distance closest to side, resettlement section, it is possible to seek miniaturization, The syringe of the scope of 2.5mL～50mL can be used.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of the preferred implementation of the syringe pump representing the present invention.

Fig. 2 is the axonometric chart representing and observing the syringe pump shown in Fig. 1 from W direction.

Fig. 3 is the figure of the three-dimensional appearance of the example of the syringe representing multiple size.

Fig. 4 is to represent the figure electrically constituting example in syringe pump.

Fig. 5 is to represent the syringe configuration part shown in Fig. 2 and the axonometric chart of syringe piston drive division.

Fig. 6 is to represent observe the syringe configuration part shown in Fig. 5 and syringe piston drive division from E direction and amplified The axonometric chart represented.

Fig. 7 is the upward view representing and observing body flange handle part from the F direction of Fig. 6.

Fig. 8 is the figure of the structure example representing the body flange handle part shown in Fig. 7 and body flange test section.

Fig. 9 is the cross sectional shape example at the J-J line of the maintaining part of the syringe body representing the resettlement section shown in Fig. 6 Figure.

Figure 10 (A) is the figure of the example of the relation representing amount of movement that this potentiometer 122 measured and syringe size, figure 10 (B) are the figures representing and being in the comparative example outside the scope of the present invention.

Figure 11 is by the axonometric chart of syringe piston drive division enlarged representation.

Figure 12 is by the axonometric chart of syringe piston drive division enlarged representation.

Figure 13 is the figure of the contraction state representing the shape of boots external member and boots external member.

Figure 14 is the figure of the structure example representing boots external member.

Figure 15 is the figure representing and the multiple stage syringe pump shown in Fig. 1 and Fig. 2 being equipped on the example setting stand.

Detailed description of the invention

Hereinafter, the preferred implementation that present invention will be described in detail with reference to the accompanying.

It addition, embodiments discussed below is the preferred concrete example of the present invention, the most various preferably limit Fixed, it is particularly limited to present disclosure but as long as describing the most in the following description, the scope of the present invention is not limited to these Embodiment.Fig. 1 is the axonometric chart of the preferred implementation of the syringe pump representing the present invention.Fig. 2 is to observe Fig. 1 from W direction The axonometric chart of shown syringe pump.

Syringe pump 1 shown in Fig. 1 and Fig. 2 is such as concentrating therapeutic room (ICU, CCU, NICU) etc. to use, be for Be not more than the value set by the scope of 999mL with flow velocity, the injection rate 0.1～150mL/h under normal circumstances, with ± 3% with In precision and long temporally patient is carried out the medicines such as anticarcinogen, anesthetis, chemotherapy agent, blood transfusion etc., nutrient The injection pump of injection.This syringe pump 1 is for selecting medicine to be used, and this selected medicine of infusing from medicine library Thing.This medicine library is to include the administration at interior medicine of the medication name that pre-registers in medicine library data base (DB) Setting group i.e. drug information.Medical practitioner is by using this medicine library, it is not necessary to the administration every time carrying out complexity sets, The selection of medicine and the setting of medicine can be realized.

As depicted in figs. 1 and 2, syringe pump 1 can use fixture 5 will to be such as filled with the note of the syringe 200 of medicine Emitter main body (syringe urceolus) 201 is arranged in irremovable mode.Syringe pump 1 is to the note of T direction push injection device 200 The plunger flange 205 of emitter piston 202, thus by the medicine in syringe body 201 as shown in Figure 2 via tube for transfusion 203 and remaining needle 204 and infuse exactly to patient P.

Syringe pump 1 has the body cover 2 of also referred to as main part, and this body cover 2 is by the moulding resin material with drug resistance Expecting one-body molded, being stained with, even if having, anti-foam process structure that medicine etc. also can prevent its entrance within syringe pump 1.So make It is owing to there is following situation that lid 2 have anti-foam to process structure: the medicine in syringe body 201 overflows or is disposed above Drop hydrorrhea grow under or the disinfectant solution etc. that uses at periphery disperse and adhere to.

First, the key element in the body cover 2 being configured at syringe pump 1 is illustrated.

As depicted in figs. 1 and 2, syringe pump 1 has body cover 2 and handle 2T, and handle 2T can be to the N side of horizontal direction Extend to (being right direction for syringe pump 1) or to the T direction of horizontal direction (for left for syringe pump 1 To) storage.Upper part 2A in body cover 2 is configured with display part 3 and guidance panel portion 4.Lower part 2B in body cover 2 configures There is syringe mounting portion 6, for pressing the syringe piston drive division 7 of syringe piston 202.Thus, medical practitioner's energy The information of the display part 3 of enough upper parts 2A confirming body cover 2 is while the transfusion carrying out carrying medicine from syringe 200 is made Industry.Further, medical practitioner can confirm body cover 2 upper part 2A display part 3 information operation The operation button of panel part 4.

Display part 3 be can the image display device of colored display, such as use color liquid crystal display arrangement.This display part 3 can not only show with the information statement of statement of communicating with the eyes, and can also carry out as required showing by the information of multiple foreign language.Display Portion 3 is positioned at the top-left position of upper part 2A of body cover 2, and it is arranged in syringe mounting portion 6 and syringe piston drive division 7 Upside.Guidance panel portion 4 is configured at the right side of display part 3 in upper part 2A of body cover 2, is configured with electricity in guidance panel portion 4 / X button 4F, flag indicator 4A are opened in source, as operation button, needed for being configured with bottom line at 4 in illustrated example F.F. shift knob 4B, start shift knob 4C, shutdown switch button 4D, menu selection buttons 4E.

The surface of the display part 3 shown in Fig. 2 is covered by such as polyester film, glossy.To this, the surface in guidance panel portion 4 It is applied in such as delustring to process.Upper part 2A of body cover 2 is the top half of body cover 2.Lower part 2B of body cover 2 is main The latter half of body lid 2.Peripheral part or a part in body cover 2 are preferably the table with body cover 2 by stickup or application Complexion different colours, such as yellow or the encapsulant of redness such that it is able to the labelling of display pump.By arranging the mark of this pump Note has the advantage that and uses multiple stage infusion pump 1 or stacking to use this syringe pump 1 and other kinds of pump such as in stacking In the case of infusion pump etc., it is possible to the boundary of the most each pump.

As depicted in figs. 1 and 2, syringe mounting portion 6 and syringe piston drive division 7 configure the most side by side.Can be from Fig. 3 is such as used to select the injection of required collecting amount in the syringe 200,300,400 of the multiple different collecting amounts of rear explanation Device makes it releasably embed and is installed on syringe mounting portion 6.

In fig. 1 and 2, the syringe that the collecting amount in multiple syringe 200,300,400 is maximum is representatively shown 200 examples cannot being mounted movably by the active force of fixture 5.Here, show the syringe of 3 kinds of collecting amounts, but The syringe of the collecting amount of specially 2.5mL, 5mL, 10mL, 20mL, 30mL, 50mL can also be suitable for.

Syringe mounting portion 6 shown in Fig. 1 and Fig. 2 have collecting the resettlement section 8 of syringe body 201, fixture 5, for The body flange handle part 500 body flange 209 (with reference to Fig. 3) of syringe 200 embedded and held.Resettlement section 8 has There is syringe body maintaining part 8D of matrix.Left end in resettlement section 8 has wall part 8W, is formed in this wall part 8W For the pipe fixed part 9 that tube for transfusion 203 is releasably sandwiched.This pipe fixed part 9 be that a part for tube for transfusion 203 is sandwiched and The slot part fixed.

In fig. 1 and 2, syringe 200 is taken off from syringe mounting portion 6 by medical practitioner at operation fixture 5 Time, make fixture 5 resist the power of not shown spring and to Y1 direction (direction, front) tractive, and to R1 direction 90-degree rotation, Thus fixture 5 departs from from the outer peripheral face of syringe body 201.Thus, syringe body 201 has been released from being carried out by fixture 5 Fixing, taken off from syringe body maintaining part 8D of resettlement section 8, and also tube for transfusion 203 can be taken from pipe fixed part 9 Under.

Additionally, when operating this fixture 5 and syringe 200 is housed and is installed on the resettlement section 8 of syringe mounting portion 6, Make fixture 5 resist the power of not shown spring and to Y1 direction tractive and to R2 direction 90-degree rotation, by spring power and to Y2 direction returns, and thus becomes syringe body 201 and is accommodated in syringe body maintaining part 8D of resettlement section 8, and by defeated Liquid pipe 203 embeds the state in pipe fixed part 9, in order to utilize fixture 5 by 2.5mL, 5mL, 10mL, 20mL, 30mL, 50mL The syringe of collecting amount fix, a part of the right part 8E of the resettlement section 8 of syringe mounting portion 6 becomes incised notch portion.

When syringe body 201 houses and is installed in syringe body maintaining part 8D of resettlement section 8, syringe piston 202 are arranged in syringe piston drive division 7.This syringe piston drive division 7 has the sliding part 10 as mobile member.Should Sliding part 10, according to the instruction from the control portion 100 shown in Fig. 2, holds the plunger flange of syringe piston 202 205, relatively little by little press this plunger flange 205 to T direction relative to syringe body 201.Thus, syringe Medicine in main body 201 can pass through tube for transfusion 203 and remaining needle 204, with 0.1～150mL/h injection rate, injection rate Be not more than 999mL the value set by scope, high accuracy and flow to patient P for a long time.It addition, the X side in Fig. 1 and Fig. 2 To, Y-direction, Z-direction orthogonal, Z-direction is above-below direction.

As the display content of the drug information in the display part 3 shown in Fig. 2, can the such as inaccessible pressure degree of colored display show The display field of scheduled volume (mL) that show, is administered, the display field of cumulant (mL) of administration, the display field of charge history, voltage drop The display field of low display field, injection rate (mL/h), injection rate (mL) etc..

Fig. 3 is the axonometric chart of the example of the syringe representing above-mentioned multiple size.

In fig. 1 and 2, it is shown that the maximum syringe of fixed drug collecting amount, the injection of collecting amount of such as 50mL The example of device 200.The syringe 200 of the medicine collecting amount maximum shown in Fig. 3 (A) includes syringe body 201 and has cross The syringe piston 202 of rib shape portion 202W, syringe body 201 has body flange 209, and syringe piston 202 has work Plug flange 205.The scale 210 of medicine it is formed with in syringe body 201.The one end of flexible tube for transfusion 203 is releasably It is connected to the export department 211 of syringe body 201.

The collecting amount of the medicine shown in Fig. 3 (B) moderate syringe, such as 10mL, the collecting amount of 20mL, 30mL Syringe 300 includes syringe body 301 and has the syringe piston 302 of cross rib shape portion 302W, syringe body 301 Having body flange 309, syringe piston 302 has plunger flange 305.The scale of medicine it is formed with in syringe body 301 310.The one end of flexible tube for transfusion 203 is releasably connected to the export department 311 of syringe body 301.

The syringe of the little collecting amount of syringe, such as 2.5mL or 5mL that the medicine collecting amount shown in Fig. 3 (C) is minimum 400 include syringe body 401 and have the syringe piston 402 of cross rib shape portion 402W, and syringe body 401 has master Body flange 409, syringe piston 402 has plunger flange 405.The scale 410 of medicine it is formed with in syringe body 401.Scratch The one end of the tube for transfusion 203 of property is releasably connected to the export department 411 of syringe body 401.

Syringe 200 shown in Fig. 3 (A) be such as medicine collecting amount be the syringe of 10mL, the injection shown in Fig. 7 (B) Device 300 be such as medicine collecting amount be the syringe of 5mL, the syringe 400 shown in Fig. 7 (C) is that such as medicine collecting amount is The syringe of 2.0mL.Each syringe body 301,401 of syringe 300,400 is same with the syringe 200 shown in Fig. 1 and Fig. 2 Sample, it is possible to house and be fixed in syringe body maintaining part 8D of resettlement section 8.

But, illustrating 3 kinds of syringes in figure 3, but be not limited to this, the collecting amount of the medicine that syringe can house can To be 2.0mL～50mL, such as 20mL, 30mL, 50mL etc., the collecting amount of syringe can arbitrarily select.

Then, with reference to Fig. 4, the electric configuration example of the syringe pump 1 shown in explanatory diagram 1 and Fig. 2.

In the diagram, syringe pump 1 has the control portion (computer) 100 carrying out molar behavior control.This control portion 100 Such as single-chip microcomputer, including ROM (read only memory) 101, RAM (random access memory) 102, nonvolatile memory 103, And clock 104.Clock 104 can revise current time by the operation of regulation, it is possible to carries out the acquirement of current time, rule The measurement etc. of the fiducial time that the measurement in the elapsed time of fixed transfusion operation, transfusion speed control.

Control portion 100 shown in Fig. 4 connects power switch button 4S and switch 111.Switch 111 is turned by Switching power Change rechargable battery 113 as portion 112 and such as lithium ion battery, thus from Power convert portion 112 and the one party of rechargable battery 113 Power to control portion 100.Power convert portion 112 is connected with commercial ac power source 115 via plug 114.

In the diagram, in resettlement section 8, it is configured with a pair detection switch 120,121.Detection switch 120,121 detection injection Whether the syringe body 201 of device 200 is properly aligned within resettlement section 8, and notifies to control portion 100.

The potentiometer as clamp sensor (potentiometer) 122 shown in Fig. 4 links with fixture 5.This potentiometer 122 by the movement of the fixture 5 when detection fixture 5 moves to Y2 direction when being clamped syringe body 201 by fixture 5 Amount, thus send detection signal to control portion 100 and whether its notice is had which collecting amount syringe body 201 (301, 401) clamped by fixture 5.Control portion 100 obtains in the Y-direction of fixture 5 according to the detection signal from this potentiometer 122 Amount of movement, such as, can interpolate that out in the syringe body 201,301,401 of syringe of multiple collecting amount as shown in Figure 3 Which syringe is mounted.Even it addition, the syringe of identical collecting amount, owing to manufacturer is different, syringe urceolus External diameter more or less difference, these data are stored in ROM101.

The motor 133 of the syringe piston drive division 7 shown in Fig. 4 according to the instruction in control portion 100 by motor-driven When device 134 drives, feed screw 135 is made to rotate and make sliding part 10 move to T direction.Thus, sliding part 10 pushes to T direction Syringe piston 202, by the medicine in the syringe body 201 shown in Fig. 2 by tube for transfusion 203 and via remaining needle 204 standard Really infuse to patient P.

In fig. 4 it is shown that portion's driver 130 drives display part 3 according to the instruction in control portion 100, show various information, Report content etc..Microphone 131 can inform various report content according to the instruction in control portion 100 by sound.

Control portion 100 can by COM1 140 with such as desk computer as computer 141 carry out two-way Communication.This computer 141 is connected with drug data base (DB) 150, and drug information MF being stored in drug data base 150 can be through It is fetched to control portion 100 by computer 141, and is stored in the nonvolatile memory 103 in control portion 100.Control portion 100 Drug information MF etc. can be shown at display part 3 based on drug information MF stored.

In the diagram, F.F. shift knob 4B, start shift knob 4C, shutdown switch button 4D, menu selection buttons 4E with Control portion 100 electrically connects.

Additionally, be also electrically connected with in control portion 100 as the light for detecting the detector whether body flange 209 is inserted Coupling sensor 250.This photo-coupled sensor 250 includes light-emitting component 251 and accepts being subject to of the light from this light-emitting component 251 Optical element 252.

Then, the detailed configuration of syringe mounting portion 6 is described.

Fig. 5 is to represent the syringe mounting portion 6 shown in Fig. 2 and the axonometric chart of syringe piston drive division 7.Fig. 6 is from E side To observing the syringe mounting portion 6 shown in Fig. 5 and syringe piston drive division 7 axonometric chart of enlarged representation.

Syringe mounting portion 6 shown in Fig. 5 is also the syringe mounting table of mounting syringe, including housing syringe body The resettlement section 8 of 201, fixture 5, convex for the body flange 209 (with reference to Fig. 3) embedding syringe 200 main body that is fixed Edge handle part 500 and body flange test section 600.

As shown in Figure 5 and Figure 6, the resettlement section 8 of syringe mounting portion 6 is the part that can house syringe body 201 Or whole recesses, resettlement section 8 axially along X-direction.In fig. 1 and 2, as an example by syringe maximum for capacity The syringe body 201 of 200 is accommodated in resettlement section 8, but in this example embodiment, a part for the outer peripheral face of syringe body 201 It is close to relative to the inner surface of syringe body maintaining part 8D of resettlement section 8, the nubbin of the outer peripheral face of syringe body 201 It is exposed to outside.

Fig. 7 is the upward view observing body flange handle part 500 from the F direction of Fig. 6.Fig. 8 is to represent the main body shown in Fig. 7 The figure of the structure example of flange handle part 500 and body flange test section 600.

As shown in Figure 8, body flange handle part 500 and body flange test section 600 constitute the holding detection of body flange Portion 700.The holding test section 700 and the body flange 209 of the syringe 200 as an example can be embedded and reliable of body flange Ground is held, and this holding test section 700 is body flange 209 to be embedded to make control portion 100 reliably grasp And body flange 209 has reached LL this situation in assigned position set in advance and has arranged.

First, the structure of body flange handle part 500 is described with reference to Fig. 5～Fig. 8.

Body flange handle part 500 shown in Fig. 5 and Fig. 6 is the plastic board member of elastically deformable, relative to receipts Right side side surface part 8V of syringe body maintaining part 8D in appearance portion 8 configures abreast.This body flange handle part 500 be arranged in by The face that Y-direction and Z-direction are formed, leading section 501 has 2 protuberances 502,503 and is formed at these protuberances 502,503 Between recess 504.

As shown in Fig. 7 (A), inner surface 502A, 503A of protuberance 502,503 becomes to tilt in the way of tip attenuates Inclined plane.Thus, body flange 209 can cross the inner surface being readily inserted into body flange handle part 500 along the Y1 direction of Fig. 8 Between 509 and right side side surface part 8V of syringe body maintaining part 8D.As shown in Figure 6, this protuberance 502 is positioned at upside, prominent Portion 503 is positioned at downside.Less recess 505 is preferably formed in the middle position of recess 504.As shown in Fig. 7 (B), this is little recessed Portion 505 is in order to when being provided with syringe 400, the ten of the syringe of the little collecting amount such as especially 2.5mL syringe The function of syringe pump also will not be brought impact ground by word rib shape portion 402W, it is to avoid to flange handle in cross rib shape portion 402W Hold the slot part in portion 500.Installing that outer barrel diameter is little, such as 2.5mL, 5mL syringe time, in order to avoid cross rib shape portion 402W contacts with flange handle part 500 and forms this little recess 505.If cross rib shape portion 402W connects with flange handle part 500 Touch, then the ejection precision infused syringe with syringe piston drive division 7, inaccessible accuracy of detection had an impact, Therefore to avoid this situation.

As it is shown in fig. 7, the inner surface 509 of body flange handle part 500 is with syringe body maintaining part 8D with resettlement section 8 The parallel mode of right side side surface part 8V and fixed in the state of the closely-spaced K that remain the regulation shown in Fig. 7 (A).Between Gai It is set the thickness H less than body flange handle part 500 and the thickness G of body flange 209 every K.

Body flange handle part 500 shown in Fig. 7 has substantially L font cross section, the one end of body flange handle part 500 For installing base portion 506.The other end of body flange handle part 500 is to have protuberance 502 and the free end of protuberance 503 Portion.This installation base portion 506 uses screw 508 to be fixed relative to a part 507 for the main body cover 2 of syringe pump 1.By This, when body flange 209 embeds interval K, body flange handle part 500 can be to become from the upright state shown in Fig. 7 (A) The mode of the tilt state shown in Fig. 7 (B), relative to installing base portion 506 to MB direction elastic deformation.

As shown in Fig. 7 (A)～Fig. 7 (B), if syringe body maintaining part 8D of syringe 200 and resettlement section 8 is joined closely Put, then a part for body flange 209 inserts right side side surface part 8V and the body flange handle part of syringe body maintaining part 8D Between the leading section 501 of 500.A part at main body syringe 209 is sandwiched into right side side surface part 8V and body flange handle part Under state between 500, and occur bounce during elastic deformation by main body syringe by body flange handle part 500 The part of 209 sandwiches to be consolidated between smooth right side side surface part 8V and the flat inner surface 509 of body flange handle part 500 Fixed.

Now, the middle position of the part embedding recess 504 of cross rib shape portion 202W of syringe piston 202 is recessed Portion 505, accordingly, because the existence of this little recess 505, cross rib shape portion 202W will not become obstruction, not have cross rib To the situation of recess 504 in shape portion 202W.Therefore, even if there is body flange handle part 500, syringe body 201 also can Syringe body maintaining part 8D will not be installed on floating from syringe body maintaining part 8D of resettlement section 8.

As an example, the body flange 209 of syringe 200 can be embedded and reliably add by body flange handle part 500 With fixing, but it is not limited to syringe 200, to the such as other kinds of syringe 300,400 shown in Fig. 3 the most reliably Fixing.That is, the body flange 309 of the syringe 300 of Fig. 3 can be embedded and reliably be consolidated by body flange handle part 500 Fixed.A part for cross rib shape portion 302W of syringe piston 302 embeds the recess 505 of the middle position of recess 504, because of This, due to the existence of this little recess 505, cross rib shape portion 302W will not become obstruction, does not haves cross rib shape portion The upper situation to recess 504 of 302W.Equally, body flange handle part 500 can be by the body flange 409 of the syringe 400 of Fig. 3 Embedding and reliably fixed, a part for cross rib shape portion 402W of syringe piston 402 embeds the central authorities of recess 504 The recess 505 of position, accordingly, because the existence of this little recess 505, cross rib shape portion 402W will not become obstruction, will not go out To the situation of recess 504 in existing cross rib shape portion 402W.

Then, the structure example of body flange test section 600 is described with reference to Fig. 8.

Body flange test section 600 can notify to control portion 100 body flange 209 be embedded into and body flange 209 Reach LL this situation in assigned position set in advance.Body flange 209 can have been reached assigned position LL by this control portion 100 This situation is such as shown in display part 3.Therefore, medical practitioner can be by visually displaying that portion 3 reliably grasps Syringe is accurately installed this situation.

As shown in Figure 8, body flange test section 600 includes that body flange detection means 601, spring 602, optical coupling sense Device 250, jut 603.Body flange detection means 601, spring 602 and photo-coupled sensor 250 are arranged in syringe pump 1 In main body cover 2.Body flange detection means 601 is to detect body flange by directly contact as shown in Fig. 8 (B) 209 rod member whether reaching assigned position LL.Body flange detection means 601 has detection leading section 604 and rearward end 605.Body flange detection means 601 can use pin 606 to rotate along the power of GH direction antagonism spring 602.

The detection leading section 604 of body flange detection means 601 is preferably formed as hemispherical.As shown in Fig. 8 (A), Under the state that body flange 209 is not embedded with, the rearward end 605 of body flange detection means 601 enters photo-coupled sensor 250 Light-emitting component 251 and photo detector 252 between.Therefore, the light carrying out self-emission device 251 is blocked by this rearward end 605, is being subject to Light portion 252 not light.

To this, as shown in Fig. 8 (B), when body flange 209 is embedded into and reaches assigned position LL, main body is convex Edge detection means 601 is resisted the power of spring 602 and is rotated to GH direction.The rearward end 605 of body flange detection means 601 is from light Depart between light-emitting component 251 and the photo detector 252 of coupling sensor 250.

Therefore, the light carrying out self-emission device 251 will be sent to control by optical signal RS by light accepting part 252 light, light accepting part 252 Portion 100 processed.Control portion 100 should be by optical signal RS by receiving, it is possible to show that such as " body flange 209 reaches rule at display part 3 LL is put in location, and syringe 200 is the most accurately installed ".In this case, as required, control portion 100 can utilize Fig. 4 institute simultaneously The microphone 131 that shows and language guiding " body flange 209 reaches assigned position LL, and syringe 200 is the most accurately installed ".Thus, By information, medical practitioner can show that at least one party with language guiding reliably grasps body flange 209 and reaches rule LL is put in location, syringe 200 the most accurately installs this situation.

It addition, assigned position LL is for the minimum body flange of syringe of such as 2.5mL of collecting amount, collecting amount The position that the body flange of the syringe of big such as 50mL can detect.Additionally, as shown in Figure 8, at body flange handle part The inner surface 509 of 500 is conformed with portion 603.This jut 603 when shown in Fig. 8 (A) with body flange detection means The detection leading section 604 of 601 abuts, thus keeps the inner surface 509 of body flange handle part 500 and the syringe of resettlement section 8 The closely-spaced K of the regulation of right side side surface part 8V of main body maintaining part 8D.Further, as shown in Fig. 8 (B), if inserting body flange 209, then the detection leading section 604 of body flange detection means 601 departs from from jut 603.

It addition, the embodiment as other is: even if in the case of inserting body flange 209, body flange detects The detection leading section 604 of component 601 does not departs from from jut 603, slides on jut 603 in detection leading section 604.But It is that the purpose of mechanism is to confirm whether body flange 209 is set.Therefore, as long as can detect that body flange 209 is No it is set, inspection can also be made in the case of being provided with the body flange 209 that thickness is the value exceeding certain setting Survey leading section 604 to depart from from jut 603.

Then, with reference to Fig. 2, Fig. 6 and Fig. 9 and Figure 10, illustrate that the syringe body of the resettlement section 8 of syringe mounting portion 6 is protected Hold the preferable shape example of portion 8D.

As shown in Figure 2 and Figure 6, in the position on the right side of the resettlement section 8 of syringe mounting portion 6, fixture 5 and ground faced by it Configuration.Additionally, as shown in Figure 6, right side side surface part 8V in resettlement section 8 is configured with the body flange handle part having been described above 500。

Fig. 9 represents the cross sectional shape example of the J-J line of syringe body maintaining part 8D of the resettlement section 8 shown in Fig. 6.Syringe Main body maintaining part 8D is the recess in order at least some of collecting of the outer peripheral face of syringe body 201 holding be formed, There is the characteristic cross sectional shape as shown in Fig. 9 (A) and Fig. 9 (B).

Fig. 9 (A) illustrates cutting of the inner surface of syringe body maintaining part 8D in order to form the resettlement section 8 shown in Fig. 8 (B) Face shape line 8R and based on the example forming line, it is illustrated that 1 circular arc forms line L1,2 straight lines form line L2, L3.2 It is the tangent line that 1 circular arc forms line L1 that bar straight line forms line L2, L3, intersects at intersection point C.

Here, the cross sectional shape the most orthogonal with syringe body of the inner surface of resettlement section 8, preferably make from described The central part (near the contact site of L2, L3 of Fig. 9 A) of inner surface arrives the part of bottom (the circular arc front end of the right-hand member of Fig. 9 A) Curvature, less than the curvature from the leading section (left part of Fig. 9 A) of this inner surface to the part of described central part.

Thus, more to the inboard of resettlement section, curvature is the least.It is to say, degree of crook slows down, therefore resettlement section inner surface Easily contact with the outer peripheral face of syringe body with wire, easily copy syringe body easily to position in resettlement section, because of This can promptly carry out the installation exercise of syringe body.

The cross sectional shape line 8R of the inner surface of syringe body maintaining part 8D is formed line L1 and 2 straight lines by described circular arc Form line L2, L3 to be formed.That is, as shown in Fig. 9 (B), cross sectional shape line 8R is formed the part 1 curve of line L1 by being equivalent to circular arc Shape portion 8R1 and part 2 curve shape portion 8R2, be equivalent to 2 straight lines and form the part 1 rectilinear form portion of line L2, L3 8R3 and part 2 rectilinear form portion 8R4 is constituted.

So, the cross sectional shape the most orthogonal with syringe body 201 of the inner surface of resettlement section 8 is, from inner surface Central part to the curvature of the part of bottom less than the curvature of part from the leading section of inner surface to central part.Thus, such as Fig. 9 (B) shown in, at the syringe body 201,301,401 of syringe 200,300,400 and the cross sectional shape line of 3 kinds of different collecting amounts In the case of 8R is close to, whichever syringe body 201,301,401 is close to, and is the most only at 2 tangent lines CL1, CL2 It is close to.Therefore, medical practitioner is by being close to syringe body maintaining part 8D respectively by syringe body 201,301,401 In, thus easily determine the position location of syringe body 201,301,401, therefore improve the installation exercise of syringe.

As the most preferred embodiment of the present invention, as shown in Fig. 9 (B), the syringe of 3 kinds of different collecting amounts 200,300, The syringe body 201,301,401 of 400 is close to the cross sectional shape line 8R of the inner surface of syringe body maintaining part 8D.1st, Part 2 rectilinear form portion 8R3,8R4 be have curvature more than the 1st, the shape of the curvature of part 2 curve shape portion 8R1,8R2 The example of shape part, forms V-shape.Thus, the 1st, the portion of part 2 rectilinear form portion 8R3,8R4 most preferably linear change Point but it also may be not necessarily linear change, the 1st, part 2 rectilinear form portion can be curvature be more than the 1st, part 2 curve Shape portion 8R1, the curve of curvature of 8R2.

The cross sectional shape line 8R of syringe body maintaining part 8D is made such shape and is in order at following reason.

In the example shown in Fig. 9 (B), in the inboard portion 301N and syringe body 201 of syringe body 301 Interval PR1 it is able to ensure that, equally, in inboard portion 401N and the syringe body of syringe body 401 between part 201N of side Interval PR2 it is able to ensure that between the inboard portion 301N of 301.

So, by formation the 1st, part 2 rectilinear form portion 8R3,8R4, thus at the syringe of difference collecting amount 200, in the case of the syringe body 201,301,401 of 300,400 is close to respectively, necessarily can mutually guarantee be spaced PR1, PR2。

As in figure 2 it is shown, fixture 5 abuts with the outer peripheral face of syringe body 201 (301,401) and by syringe body 201 When the outer peripheral face of (301,401) is installed in syringe body maintaining part 8D, the amount of movement of detection fixture 5 as shown in Figure 4 Potentiometer 122 detects the kind (outside dimension that the difference measured by collecting causes) of these syringe body.Figure 10 (A) represents should The amount of movement of the fixture 5 that potentiometer 122 measures and the relation example of syringe size.

In Figure 10 (A), the measurement range of the amount of movement of gained when potentiometer 122 measures the syringe 200 of 10mL It is able to ensure that movement between measurement range 300S of the amount of movement of gained when 200S and potentiometer 122 measure the syringe 300 of 5mL The poor DF1 of amount.Equally, measurement range 300S of the amount of movement of gained and electricity when potentiometer 122 measures the syringe 300 of 5mL The difference of amount of movement it is able to ensure that between measurement range 400S of the amount of movement of gained when position meter 122 measures the syringe 400 of 2mL (enough and to spare amount) DF2.

So it is able to ensure that difference (enough and to spare amount) DF1, DF2 of amount of movement are because as shown in Fig. 9 (B), in syringe body 201,301,401 be close to respectively in the case of can reciprocally guarantee be spaced PR1, PR2.That is, the amount of movement shown in Figure 10 (A) Difference DF1 by assuring that the interval PR1 shown in Fig. 9 (B) and obtain, the poor DF2 of the amount of movement shown in Figure 10 (A) is by assuring that Fig. 9 (B) Shown interval PR2 and obtain.

Owing to can so guarantee poor DF1, DF2 of amount of movement, therefore the control portion 100 shown in Fig. 4 can guarantee Measure poor DF1, DF2 of the i.e. amount of movement of enough and to spare amount, to the syringe being close to be held in syringe body maintaining part 8D Kind is which of syringe 200,300,400 makes a distinction and detect.That is, when detecting the kind of syringe, it is possible to make Scope 200S of amount of movement, 300S, 400S are separated with keeping off, therefore ensure that measure the i.e. amount of movement of enough and to spare amount poor DF1, DF2。

And, medical practitioner copies shown in Fig. 9 (B) by making the outer peripheral face of each syringe body 201,301,401 The 1st, be close to it part 2 rectilinear form portion 8R3,8R4, it is possible to by each syringe body 201,301,401 not Keep movably, therefore when syringe is installed in syringe body maintaining part 8D, as long as to be close on the Y2 direction State positions, in this way it is easy to determine the installation site of syringe body.

As it has been described above, the inner surface in resettlement section 8 be 2 tangent lines CL1, CL2 with syringe body 201,301,401 Outer peripheral face contact structure, therefore, it is possible to easily make the outer peripheral face of syringe body 201,301,401 copy the interior of resettlement section 8 Surface and easily position.

Figure 10 (B) represents the syringe body maintaining part of the comparative example different from the embodiments of the present invention shown in Fig. 9 The cross sectional shape line 1000R of 1000D.

In this comparative example, cross sectional shape line 1000R is simple circular shape, does not have straight line portion, but bottom has Have and keep out of the way hole 1001.Syringe body 201,301,401 at the syringe 200,300,400 of difference collecting amount is close to respectively In the case of in this cross sectional shape line 1000D, the inboard portion 401N of syringe body 401, the medial part of syringe body 301 The inboard portion 201N dividing 301N and syringe body 201 concentrates on a bit of the central authorities of cross sectional shape line 1000R.Therefore, figure The comparative example of 10 (B) can not be reciprocally at syringe 200,300,400 the embodiments of the present invention as shown in Fig. 9 (B) Between guarantee be spaced PR1, PR2, it is impossible to guarantee the poor DF1 of the amount of movement shown in Figure 10 (A) and the poor DF2 of amount of movement.

Additionally, in the comparative example of Figure 10 (B), cross sectional shape line 1000R is simple circular shape, even if respectively noting The outer peripheral face of emitter main body 201,301,401 is close to cross sectional shape line 1000R, and it also cannot be made the most stably to keep, When syringe is installed in syringe body maintaining part 8D, it is difficult to determine location with the state being close on Y1 direction, injection The installation exercise of device is low.

As shown in Fig. 9 (B), such as syringe body 201 contacts with the inner surface of resettlement section 8 by 2 tangent lines CL1, CL2 Time the inner side of outer peripheral face of syringe body 201 and the syringe body 301 of other different collecting amounts cut by 2 The inner side of the outer peripheral face of the syringe body 301 when line CL1, CL2 contact with the inner surface of resettlement section 8, is not such as Figure 10 (B) comparative example concentrates on 1 point like that, but can be separated from each other.Therefore, multiple syringe body that collecting amount is different from each other The inner side of outer peripheral face different from each other, the most such as fixture 5 is by the syringe body 201,301 inner surface to resettlement section 8 When side pressure is leaned on, measure measurement range 200S of potentiometric amount of movement obtained by syringe body 201 and measure other different receipts Obtained by the syringe body 301 of capacity, measurement range 300S of potentiometric amount of movement can be separated from each other.

Therefore, the control portion 100 shown in Fig. 4 can utilize the detection signal of the amount of movement from potentiometer 122, distinguishes Which syringe that have selected in the syringe body 201,301 with multiple collecting amount is installed on resettlement section 8.To choosing Which selected the syringe in the syringe body 301,401 with multiple collecting amount to be installed on the situation of resettlement section 8 and enter When row is distinguished too.

Then, with reference to Figure 11～Figure 13, the structure example of the syringe piston drive division 7 shown in explanatory diagram 2.Figure 11 and Figure 12 It is by this syringe piston drive division 7 enlarged representation axonometric chart.

As shown in figs. 2 and 11, in syringe piston drive division 7 houses and is held in prolongation forming portion 2C of body cover 2. This prolongation forming portion 2C is to be formed by extending to X1 direction from lower part 2B of body cover 2.Formed as in figure 2 it is shown, extend Portion 2C has upside face 701, downside face 702 and right side face 703.This prolongation forming portion 2C have by upside face 701, Shown in downside face 702, right side face 703 and Figure 11 it is stated that the right side of syringe body maintaining part 8D of resettlement section 8 Space S P that side surface part 8V is surrounded, syringe piston drive division 7 is housed in this space.

As in figure 2 it is shown, the sliding part 10 of syringe piston drive division 7 is according to the instruction in the control portion 100 from Fig. 4, will The plunger flange 205 of syringe piston 202 is relative to syringe body 201 along T direction (X2 direction) little by little relatively Pressing.That is, when the motor 133 of the syringe piston drive division 7 shown in Fig. 4 is by the order-driven in control portion 100, feeding silk is made Thick stick 135 rotates and makes sliding part 10 move to T direction.Thus, sliding part 10 is to T direction push injection device piston 202, it is possible to will Medicine in syringe body 201 shown in Fig. 2 is infused to patient exactly by tube for transfusion 203 and via remaining needle 204 P。

This sliding part 10 has plastic lid component 80,2 and holds component 81,82 and action bars 83.This lid component 80 Can move along the guide rail 84 extending forming portion 2C along X1 direction and X2 direction (T direction).Medical practitioner can use Finger makes this action bars 83 press to the P1 direction antagonism power shown in Figure 11 (A), or borrows to P2 direction shown in Figure 11 (B) Lift with helping active force.Action bars 83 can be operated along guide portion 83G shown in Figure 11 (B).

As shown in Figure 12 (B), medical practitioner by by action bars 83 as shown in Figure 11 (A) to the antagonism of P1 direction Press to power, thus hold component 81,82 and move to X2 direction and leave lid component 80, expand interval BN, medical practitioner If further pressing operation bar 83, then hold component 81,82 to each other away from RQ1 direction expand.

After the plunger flange 205 of syringe piston 202 is embedded this interval BN by medical practitioner, if medical practitioner Decontrol action bars 83, then action bars 83 recovers to P2 direction by the power of spring.Thus, component 81,82 is held by not scheming The power of the spring shown and move to X1 direction, plunger flange 205 is sandwiched these and holds between component 81,82 and lid components 80 Kept, and by making holding component 81,82 close to RQ2 direction, thus hold component 81,82 and can clip from both sides And keep syringe piston 202.

Then, the shape of the boots external member (boot) 800 as cover component shown in explanatory diagram 2.

This boots external member 800 covers around the key elements such as feed screw 135 as shown in Figure 4, as shown in figure 11, is arranged in Between right side side surface part 8V and the lid component 80 of sliding part 10 of syringe body maintaining part 8D of resettlement section 8.Boots external member 800 is Cover the anti-foam structure of feed screw 135 grade.Thus, even if medicine in syringe body 201 overflows or is disposed above The disinfectant solution etc. used under drop hydrorrhea is grown or at periphery disperses, and it also can be prevented to be attached to the key elements such as feed screw 135.

Boots external member 800 shown in Figure 11 (A) is by the silicone rubber that such as will not deteriorate because of medicine, ultraviolet, synthetic rubber Or plastics make, it is possible to along with sliding part 10 moves to X1 direction and X2 direction and extends and shrink.As shown in Figure 11 (A), boots External member 800 has multiple 1st male portion 811,812,813,814,815,816, multiple 2nd male portion 821,822,823 and a left side The linking portion 830,831 of right position.

The linking portion 830 in left side is fixed on syringe body through the bore portion 599 of body flange handle part 500 to be protected Hold right side side surface part 8V of portion 8D.

It is continuously formed 2 the 1st male portion 811,812 with the linking portion 830 in left side, is also continuously formed 1 2nd male portion 821.It is continuously formed 2 the 1st male portion 813,814 with this 1 the 2nd male portion 821, has also been continuously formed There is 1 the 2nd male portion 822.And, it is continuously formed 2 the 1st male portion 815,816 with 1 the 2nd male portion 822, has also connected Form 1 the 2nd male portion 823 continuously.The inner side of 1 the 2nd male portion 823 linking portion 831 via right side and lid component 80 Side, face 89 connects.So, 1 the 2nd male portion is arranged between 2 the 1st male portion.

Figure 13 (A) is to represent this boots external member 800 and the upward view of sliding part 10.

Outer diameter D M2 of multiple 2nd male portion 821,822,823 shown in Figure 13 be set to than the 1st male portion 811,812, 813, outer diameter D M1 of 814,815,816 is little by about 1/2.The lid component 80 of sliding part 10 has the boots external member incorporating section 88 of matrix.

Figure 13 (B) and Figure 13 (C) represent the state that boots external member 800 is shunk, the part of the boots external member 800 of contraction state or All can be incorporated in the boots external member incorporating section 88 of lid component 80.Thereby, it is possible to by the i.e. boots external member 800 of cover component of contraction It is accommodated at least partially in the boots external member incorporating section 88 of the i.e. sliding part 10 of mobile member, arrives therefore, it is possible to shorten sliding part 10 Distance close to side, resettlement section 8.

Here, the contractile function of explanation boots external member 800.

As shown in Figure 13 (A), sliding part 10 is when X2 direction (T direction) slides, and as shown in Figure 13 (B), adjacent the 1st is convex Part the 812 and the 1st male portion 813 can be contained in inner side will be located in 1 little the 2nd male portion 821 of diameter between them Enroll the state of this 1 the 2nd male portion 821 and receive.Equally, the 1st adjacent male portion the 814 and the 1st male portion 815 can Receive will be located in state that 1 the 2nd male portion 822 between them enrolls.And, remaining 1 the 2nd male portion 823 Can be to enroll the state storage in the 1st male portion 816.

As shown in Figure 13 (B), when boots external member 800 is contained, it is possible to maintain 2 folded up the 1st convex The state of (storage) 1 the 2nd male portion 821 is enrolled, equally, it is possible to maintain folding between the convex camber of part 811,812 The state of (storage) the 2nd male portion 822 is enrolled between the 1st male portion 814,815 got up.

Thus, compared with the situation being formed boots external member by the 1st male portion being all formed as formed objects, the 2nd male portion Can be to enroll the state storage in 2 the 1st male portion, therefore when boots external member 800 is shunk, it is possible to shorten it and shrink Length LT.By shortening its contracted length when boots external member 800 is retracted such that it is able to shorten syringe piston and drive The sliding part 10 in portion 7 is to the distance closest to side, resettlement section 8, it is possible to seeking miniaturization, the syringe therefore connecting 2.5mL can make With.

That is, when boots external member 800 is pressed by sliding part 10 and shrinks, the 1st male portion of the both sides being positioned at the 2nd male portion can Shrink with the state that the 2nd male portion is enrolled, therefore can shorten its contracted length when cover members contract, it is possible to Shorten sliding part 10 to the distance closest to side, resettlement section 8.

As shown in figure 14, the 1st male portion 1201 that can be bigger is alternately arranged with the 2nd less male portion 1202.

But, if so constituting, the quantity of the 2nd the least male portion 1202 is compared with the situation of Figure 13, and ratio becomes many, Therefore, boots external member elongation on X1 direction cannot sometimes be substantially ensured that.

Therefore, so that boots external member can extend enough length and shorten its length dimension as far as possible when elongation, The boots external member of present embodiment is so as shown in fig. 13 that, preferably by convex to 2 the 1st bigger male portion and 1 less the 2 Part is alternately repeated arrangement.

Then, what above-mentioned syringe pump 1 was described makes use-case.

With reference to Fig. 7, if medical practitioner is tight with syringe body maintaining part 8D of resettlement section 8 by such as syringe 200 The configuration of patch ground, then to be inserted into right side side surface part 8V of syringe body maintaining part 8D convex with main body for a part for body flange 209 Between the leading section 501 of edge handle part 500.

As shown in Fig. 7 (B), the part at main body syringe 209 is sandwiched in right side side surface part 8V and holds with body flange Under state between portion 500, and there is bounce during elastic deformation by body flange handle part 500, held and solid Between the smooth inner surface 509 of smooth right side side surface part 8V and body flange handle part 500.Thus, body flange 209 by embedding between body flange handle part 500 and side surface part 8V of resettlement section 8, just can be so that body flange handle part 500 Free end side flexure state be easily installed.

Now, the middle position of recess 504 is embedded due to a part for cross rib shape portion 202W of syringe piston 202 Recess 505, therefore due to the existence of this little recess 505, cross rib shape portion 202W will not become obstruction, not have cross To the situation of recess 504 in rib shape portion 202W.

As shown in Fig. 8 (A)～Fig. 8 (B), when body flange 209 embeds and obtains assigned position LL, main body is convex Edge detection means 601 rotates to GH direction, and therefore the rearward end 605 of body flange detection means 601 is from photo-coupled sensor 250 Light-emitting component 251 and photo detector 252 between depart from.Therefore, carry out the light of self-emission device 251 by light accepting part 252 light, because of This light accepting part 252 will be sent to control portion 100 by optical signal RS.If control portion 100 receive this by optical signal RS, then display Portion 3 shows " body flange 209 reaches assigned position LL mounting of syringe 200 exactly ".Therefore, medical practitioner is led to Cross visual display part 2 and just can confirm that body flange 201 is to be installed to LL this situation in position set in advance.

In the case of Gai, control portion 100 can also utilize the microphone 131 shown in Fig. 4 simultaneously, refer to language as required Derive " body flange 209 reaches assigned position LL mounting of syringe 200 exactly ".Thus, medical practitioner can Reliably grasp body flange 209 and reach assigned position LL this situation of mounting of syringe 200 exactly.

Thereafter, medical practitioner operates the fixture 5 shown in Fig. 2, utilizes fixture 5 syringe body 201 be close to and consolidate Syringe body maintaining part 8D due to resettlement section 8.Thus, syringe cannot move.

On the other hand, medical practitioner makes the action bars 83 shown in Figure 11 (A) to P1 direction as shown in Figure 11 (A) Press to antagonism power, thus as shown in Figure 12 (B), hold component 81,82 move to X2 direction and leave from lid component 80, Expand interval BN.If medical practitioner's further push bar 83, then hold component 81,82 to each other away from RQ1 side To expanding.

After the plunger flange 205 of syringe piston 202 is embedded this interval BN by medical practitioner, medical practitioner Unclamp action bars 83, thus hold component 81,82 and move to X1 direction by the power of not shown spring, make holding component 81,82 close to RQ2 direction.Thus, plunger flange 205 is held and is held in these holding components 81,82 and lid component 80 Between, and hold component 81,82 also can be from sandwich syringe piston 202.

Then, in the diagram, as required, whether the syringe body 201 of detection switch 120,121 detection syringe 200 It is properly aligned within resettlement section 8, and notifies to control portion 100.

As the potentiometer 122 of sensor of amount of movement of fixture 5 in the state being clamped syringe body 201 by fixture 5 Under, the amount of movement of detection fixture 5, and whether syringe body 201 is reliably clamped this situation by fixture 5 notify to control Portion 100.Control portion 100 when being judged as reliably being clamped by syringe 200, the motor 133 of syringe piston drive division 7 Made feed screw 135 rotate by the order-driven in control portion 100, make sliding part 10 move to T direction.

Thus, sliding part 10 is to X2 direction (T direction) push injection device piston 202, by the syringe body shown in Fig. 2 Medicine in 201 is infused to patient P exactly by tube for transfusion 203 and via remaining needle 204.

So, if syringe piston 202 is pushed by sliding part 10 to X2 direction (T direction), medicine is carried from syringe 200 Time, boots external member 800 is punctured into the state shown in Figure 13 (B) from Figure 12 (A).If boots external member 800 is shunk, then the 1st male portion 812 He 1st male portion 813 can be will be located in the state storage that the 2nd male portion 821 between them is enrolled.Equally, the 1st male portion 814 and the 1st male portion 815 can be will be located in the state storage that the 2nd male portion 822 between them is enrolled.And, remaining 2nd male portion 823 can be with the state storage being incorporated in the 1st male portion 823.

That is, as shown in Figure 13 (B), when boots external member 800 is contained, it is possible to maintain the 2nd male portion 821 to be contained State between the 1st male portion 811,812 folded up, equally, it is possible to maintain the 2nd male portion 822 to be incorporated in folding State between the 1st male portion 814,815 got up.Thus, as shown in Figure 13 (B), and all formed boots set by the 1st male portion The situation of part is compared, and the 2nd male portion 823 can be to enroll the state storage in the 1st male portion 823.

In embodiments of the present invention, it is possible to embed the body flange of syringe and reliably install, and can slap Hold whether body flange reaches assigned position.That is, medical practitioner can hold by body flange embeds body flange Portion carries out holding and reliably installs, and about the mounted situation of body flange, control portion can detect based on from body flange Portion gives the detection signal in control portion to grasp whether body flange reaches assigned position.Accordingly, because syringe piston drives Portion can be by syringe piston to being correctly oriented press-in, therefore, it is possible to the transfusion carrying out medicine accurately processes.

According to the embodiment of the present invention, by easily copying and hold when to the outer peripheral face location and installation of syringe body Easily location, therefore, it is possible to promptly carry out the installation exercise of syringe body, it is possible to have selected the note with multiple collecting amount The syringe of which kind of kind in emitter and be installed on the situation of resettlement section and make a distinction.

Figure 15 represent by the multiple stage syringe pump 1 shown in Fig. 1 and Fig. 2 above-below direction be string be equipped on setting stand Example on 70, can use multiple stage syringe pump 1 as required simultaneously.The multiple stage syringe pump 1 of identical type is overlapping Configuration or during by syringe pump 1 with this different types of pump of syringe pump 1 such as infusion pump 1100 stack arrangement, in injection Peripheral part of the body cover of peripheral part of the body cover of device pump 1 or a part and infusion pump 1100 or a part paste or Application is preferably the encapsulant of the color such as yellow or redness different from the color of body cover, it is possible to show the mark of pump Note 770.Thus, by arranging the labelling 770 of pump, have the advantage that and multiple stage syringe pump 1 is being stacked use, maybe will note In the case of the stacking such as emitter pump 1 and other kinds of pump such as infusion pump 1100 uses, medical practitioner can be visually Clearly recognize the boundary of each pump.

Additionally, this invention is not limited to above-mentioned embodiment, the present invention can carry out various correction and change, at claims Various deformation can be carried out in described scope.

The syringe pump 1 of embodiments of the present invention is set as the medicine such as housing 3 kinds of sizes that can load and unload shown in Fig. 7 Syringe 200,300,400, but be not limited to this, it is possible to set 2 kinds or the syringe of more than 4 kinds.

Photodetector as the photo-coupled sensor 250 shown in Fig. 8 can also be replaced and use the detection of other forms Device, such as magnetic detector etc..

The explanation of reference

1 syringe pump, 2 body cover, the upper part of 2A body cover, 2B body cover Lower part, 3 display parts, 4 guidance panel portions, 5 fixtures, 6 syringe configuration parts, 7 syringe piston drive divisions, 8 concave resettlement sections, the syringe body maintaining part of 8D resettlement section, 10 sliding parts (mobile member), 100 control portions, 122 potentiometers, 135 feed screws are (sliding Moving part), 200,300,400 syringes, 201,301,401 syringe body, 202,302,402 notes Emitter piston, 205,305,405 plunger flange, the body flange of 209,309,409 syringe body, 250 photo-coupled sensors (example of detector), 500 body flange handle parts, 600 body flange Test section, the holding test section of 601 body flange detection means 601,700 body flange, 800 boots External member (cover component), 811～816 the 1st male portion, 821,822,823 the 2nd male portion.

Claims (5)

1. a syringe pump, it is for installing an injection in multiple syringe that be filled with medicine, that collecting amount is different Device and by the described medicine in described syringe to patient carry, it is characterised in that

This syringe pump has: syringe mounting portion, and it has and the body flange of described syringe is embedded and held Body flange handle part and house the syringe body maintaining part of syringe body of described syringe；And be used for pushing institute State the syringe piston drive division of the syringe piston of syringe,

Described syringe piston drive division has:

Mobile member, it, to make described syringe piston can hold described syringe piston in the way of loading and unloading, makes described syringe Piston releases the described medicine in described syringe body relative to described syringe body；

Guiding elements, it makes described mobile member move and is guided to described syringe body side by described mobile member；

Cover component, it covers described guiding elements, along with described mobile member can be with bullet to described syringe body side shifting Property deformation mode shrink,

Described cover component is in series formed with multiple continuous print the 1st male portion and the 2nd along the length direction of described syringe piston Male portion,

The outside dimension of described 2nd male portion is set smaller than the outside dimension of described 1st male portion, and two continuous landform Described 1st male portion become and described 2nd male portion being adjacent to be formed continuously with them are formed as alternately continuous,

The one end of described cover component is fixed on described syringe body through the bore portion of described body flange handle part to be protected Hold the side surface part in portion.

Syringe pump the most according to claim 1, it is characterised in that

The other end of described cover component is connected with the side of described mobile member.

Syringe pump the most according to claim 1 and 2, it is characterised in that

At least one of receipts of the described cover component being in contraction state for storage it are provided with in the side of described mobile member Receive portion.

Syringe pump the most according to claim 1 and 2, it is characterised in that

Described cover component has anti-foam structure, and described guiding elements is to carry institute by utilizing the action of motor to carry out rotating State the feed screw of mobile member.

Syringe pump the most according to claim 1 and 2, it is characterised in that

Upper part at the main part of syringe pump is configured with the display part of display information and has the guidance panel of operation button Portion, the lower part at the main part of described syringe pump is configured with described syringe mounting portion and described syringe piston drives Portion.