CN103182125B

CN103182125B - Anaesthetic absorbing loop

Info

Publication number: CN103182125B
Application number: CN201110457370.4A
Authority: CN
Inventors: 张凯
Original assignee: Beijing Aeonmed Co Ltd
Current assignee: Beijing Aeonmed Co Ltd
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2016-08-17
Anticipated expiration: 2031-12-30
Also published as: CN103182125A

Abstract

The open a kind of anaesthetic absorbing loop of the present invention, including loop body, there is inside it inlet channel, described inlet channel is built-in with sampling probe, at described probe two ends and be positioned at described loop body interior and be respectively provided with gas passage, two described gas passages are connected by the detection device of anesthesia mixed gas, so that probe, two gas passages, detection device composition closed-loop path, be additionally provided with on the body of described loop remove wushu manually/machine control shifter, for manually providing anesthetic gases and automatically providing to switch between anesthetic gases.Its realize on an absorption circuit simultaneously flow, pressure detecting probe built-in and arranging remove wushu manually/machine control shifter, there is compact conformation, the convenient advantage used.

Description

Anaesthetic absorbing loop

Technical field

The present invention relates to a kind of anaesthetic absorbing loop, particularly relate to a kind of compact anaesthetic absorbing loop.

Background technology

Anesthetic machine absorption circuit be anesthetic machine be connected with patient combine gas path device, for patient carry Anesthesia mixed gas.In order to accurate measurements effectively control input the anesthesia mixed gas of patient end Flow, it will usually arrange probe on anesthetic machine absorption circuit, by itself and flow transducer and pressure The connection of sensor, reaches flow and the purpose of pressure of real-time Monitored anesthesia mixed gas, meanwhile, Manually/machine control permutator also can be installed on absorption circuit, it is achieved manual feed is anaesthetized with motor-driven conveying The conversion of gas.But there is following two defect in existing anaesthetic absorbing loop:

1) in existing anesthetic machine field, Monitored anesthesia gas flow and the sampling probe of pressure and adopt Sample pipe generally uses external mode.I.e. arrange on the face shield of patient end and the connecting tee of anaesthetic circuit Sampling probe, then be connected on anesthesia respirator by sampling tube, come anesthesia mixed in this way Close gas flow and pressure is monitored.Such structure will certainly increase the pipeline of anesthetic machine so that The pipe-line system making anesthetic machine is more complicated, gives to use and makes troubles with maintenance；What this mode used adopts Sample length of tube is longer, under the influence of by ambient temperature, there will be condensation after using a period of time, At sampling tube internal water accumulation, the monitor value making the flow of anesthesia mixed gas and pressure is inaccurate, adopts simultaneously Sample pipe exposes, it is easy to is touched, obscission occurs, makes troubles to use；

2) manually/machine control permutator is for using one-touch structure, i.e. by by key control anesthetic gases The conversion of mode of movement.Although this conversion regime is convenient, but because the button of anesthetic machine itself is more and Concentrating, be in case of emergency easy to there will be operational error, this will bring the biggest danger to patient , there is the potential safety hazard in use in evil.

Summary of the invention

It is an object of the invention to solve the problems referred to above, it is provided that a kind of anaesthetic absorbing loop, it is at one Realize on absorption circuit simultaneously flow, pressure detecting probe built-in and arranging remove wushu manually/machine control Shifter, has compact conformation, the convenient advantage used.

It is an object of the invention to be achieved through the following technical solutions:

A kind of anaesthetic absorbing loop, including loop body, has inlet channel, described air inlet inside it Passage is built-in with sampling probe, at described probe two ends and be positioned at described loop body interior and be all provided with Putting gas passage, two described gas passages are connected by the detection device of anesthesia mixed gas, so that Probe, two gas passages, detection device composition closed-loop path, described loop body is additionally provided with and removes Wushu manually/machine control shifter, for manually provide anesthetic gases and automatically provide anesthetic gases it Between switch over.

Preferably, described probe is fixed in inlet channel by probe clamp device, and described probe is tight It is fixedly mounted with the rear probe jacket put the front probe jacket including being arranged on probe distal end, be arranged on probe rear end, And the fresh air being arranged on rear probe jacket rear end imports reducing sleeve.

Preferably, described gas passage includes the first gas passage and the second gas passage, at front probe In the middle part of sheath, rear probe jacket, equal ring cutting is fluted, has some air-vents, institute on described groove State loop body interior to have on the first vestibule, the second vestibule, described first vestibule and front probe jacket Groove connection composition the first gas passage, described second vestibule connects with the groove on rear probe jacket Form the second gas passage.

Preferably, described detection device includes detecting flow flow transducer, detection pressure pressure Sensor, described flow transducer has entrance point and the port of export, at the first vestibule, the second vestibule Outer end is respectively connected with sampling joint, and described sampling joint is respectively by going out sample pipe, sample feeding pipe and flow Sensor outlet end is connected with entrance point, is going out on sample pipe by the arm introduced and pressure transducer phase Even.

Preferably, the leading inside of described rear probe jacket has first annular groove, described first annular Trench bottom has the spacing First terrace of probe, and described probe interference fits is installed on described first ring In shape groove.

Preferably, the rear inside of described front probe jacket has the second cannelure, described second annular Groove inwall has female thread, and bottom has rear probe jacket and spacing second step face of popping one's head in, described Rear probe jacket front end coupling female thread arranges external screw thread, and described rear probe jacket front end stretches into second In cannelure, and it is threaded connection front probe jacket so that probe end thereof contacts First terrace, Other end contact second step face, it is achieved probe is firm to be installed in first annular groove.

Preferably, described rear probe jacket rear inside has the 3rd cannelure, and inwall has interior spiral shell Stricture of vagina, described fresh air imports the front end coupling female thread of reducing sleeve and is provided with external screw thread, and described Externally threaded root has spacing 3rd step surface of rear probe jacket, and described fresh air imports switching The front end of set is stretched in the 3rd cannelure, and is threaded connection rear probe jacket.

Preferably, described fresh air imports and has thin-walled slot to make way in the middle part of reducing sleeve, has inside it The installing space of manually/machine control shifter, described manually/machine control shifter installed by slot to make way In described loop, this is internal；

Described fresh air imports reducing sleeve rear inside and arranges himself spacing 4th step surface, and Having screwed hole in upper and lower lateral symmetry, center arranges air inlet；

The probe fastening dress that reducing sleeve forms is imported by front probe jacket, rear probe jacket, fresh air Put and be fastened on the body of described loop by screwing in the screw of screwed hole, and at the air inlet and The joint importing reducing sleeve and inlet channel at fresh air arranges sealing member, be positioned at described before spy End protective cover connects with rear probe jacket end the joint of inlet channel is provided with sealing member.

Preferably, there is inside described air inlet conical internal thread, and pass through screw thread in air inlet outer end Connect and have the fast spigot joint of air inlet.

Preferably, described probe uses stainless steel material to make, and uses honeycomb fashion regular hexagon netted Structure.

The invention have the benefit that 1) by being built-in with sampling probe at inlet channel, it is to avoid Pop one's head in and external cause anesthetic machine pipe-line system complicated and the phenomenon of sampling tube damage easy to fall off；2) pass through At probe two ends and be positioned at inside absorption circuit and be respectively provided with gas passage, two gas passages are by anesthesia The detection device of mixed gas is connected, so that probe, two gas passages, detection device composition close back Road, can detect flow and the pressure of anesthesia mixed gas in real time；3) by setting on absorption circuit Put remove wushu manually/machine control shifter, for manually providing anesthetic gases and machine control to provide anesthesia gas Switch between body, it is to avoid use is one-touch manually/machine control shifter time easily cause accident Phenomenon；4) by front probe jacket is turned with live gas importing with rear probe jacket, rear probe jacket Female connector, live gas import reducing sleeve and air inlet all uses, between fast spigot joint, the spiral shell being easily assembled Stricture of vagina connected mode, and live gas import reducing sleeve be connected by screw on absorption circuit so that visit Head clamp device easy accessibility, brings convenience to use；5) live gas imports reducing sleeve air inlet tool Having tapered thread, the design of tapered thread can ensure that the air-tightness of air inlet is more preferable；6) forward and backward The middle part equal ring cutting groove of probe jacket, and groove all has some air-vents, the design of porous ensures The flowing of gas is more rapid, unimpeded；7) at air inlet and in fresh air importing switching Set arranges sealing member, to playing sealing function between air inlet and the external world with the joint of inlet channel；8) Before being positioned at probe jacket connect with rear probe jacket end and be provided with close with the joint of inlet channel Sealing, plays sealing function between probe inlet, outlet；9) probe interference fits is visited after being installed on In the first annular groove of end protective cover, it is easily assembled each other, and probe will not in first annular groove There is loosening phenomenon；10) probe uses stainless steel material to make, and stainless steel strengthens the thing of probe Rationality energy, it will not be with the gas generation chemical reaction that passes through inside it so that probe service life is more Long；Probe uses the cancellated design of honeycomb fashion regular hexagon, and this makes the structure of probe more stable, Gas by time resistance be evenly distributed, add probe two ends pressure differential so that passed by pressure After sensor, flow transducer, the gas flow values of output is more accurate.Contrast prior art, it is one Realize on individual absorption circuit simultaneously flow, pressure detecting probe built-in and arranging remove wushu manually/machine Control shifter, has compact conformation, the convenient advantage used.

Accompanying drawing explanation

Below according to drawings and Examples, the present invention is described in further detail.

Fig. 1 is the partial schematic sectional view of anaesthetic absorbing loop of the present invention；

Fig. 2 is the cross-sectional schematic of probe of the present invention and clamp device thereof；

Fig. 3 is that the A-A shown in Fig. 2 is to cross-sectional schematic；

Fig. 4 is probe sampling entrance schematic diagram of the present invention；

Fig. 5 is that probe sampling of the present invention exports schematic diagram；

Fig. 6 is that gas flows to schematic diagram in loop body interior；

Fig. 7 is that gas flows to schematic diagram in loop body exterior.

In figure:

1, loop body；2, front probe jacket；3, probe；4, sealing member；5, rear probe jacket； 6, live gas imports reducing sleeve；7, manually/machine control shifter；8, First terrace；9, spiral shell Nail；10, sampling joint；11, fast spigot joint；12, pressure transducer；13, flow transducer； 14, second step face；15, the 3rd step surface；16, the 4th step surface；17, slot to make way；18、 Air inlet；19, inlet channel；20, the first vestibule；21, the second vestibule；22, sample feeding pipe；23、 Go out sample pipe；24, arm.

Detailed description of the invention

As it is shown in figure 1, in the present embodiment, anaesthetic absorbing loop of the present invention, including loop Body 1, has inlet channel 19 inside it, inlet channel 19 is built-in with sampling probe 3, is visiting 3 two ends and be positioned at that loop body 1 is internal is respectively provided with gas passage, two described gas passages lead to The detection device crossing anesthesia mixed gas is connected, so that probe 3, two gas passages, detection device composition Closed-loop path, loop body 1 is additionally provided with remove wushu manually/machine control shifter 7, at hands Dynamic offer switches between anesthetic gases and machine control offer anesthetic gases.

Probe 3 is fixed in inlet channel 19 by probe clamp device, sees Fig. 2～3, it is shown that Probe and the structure of clamp device, probe clamp device include front probe jacket 2, rear probe jacket 5, Fresh air imports reducing sleeve 6, and wherein, front probe jacket 2 is arranged on probe 3 front ends, and rear probe protects Set 5 is arranged on probe 3 rear ends, and fresh air imports reducing sleeve 6 and is arranged on rear probe jacket 5 rear end.

The leading inside of rear probe jacket 5 has first annular groove, is used for installing probe 3；Front end outer side It is provided with external screw thread, for threaded front probe jacket 2, and at first annular trench bottom, there is probe Spacing First terrace 8；Rear probe jacket 5 rear inside has the 3rd cannelure, and inwall has Female thread, imports reducing sleeve 6 for threaded live gas.

The rear inside of front probe jacket 2 has the second cannelure, and has at the second cannelure inwall Female thread, for threaded rear probe jacket 5, bottom has rear probe jacket 5 and probe 3 is spacing With second step face 14.

Fresh air imports the periphery, front end of reducing sleeve 6 and is provided with external screw thread, visits after threaded End protective cover 5, and probe jacket 5 is spacing with the 3rd step surface 15 after externally threaded root has；Newly Fresh air imports and has thin-walled slot to make way 17 in the middle part of reducing sleeve 6, has manually/machine control interpreter inside it The installing space of structure, manually/machine control shifter 7 is installed in loop body 1 by slot to make way 17； Fresh air imports reducing sleeve 6 rear inside and arranges himself spacing 4th step surface 16, and upper, Lower lateral symmetry has screwed hole, and center arranges air inlet 18, has in taper inside air inlet 18 Screw thread, for threaded air inlet with fast spigot joint 11.

Seeing Fig. 1,4,5,6, the gas passage of loop body interior includes the first gas passage and Two gas passages, in the middle part of front probe jacket 2, rear probe jacket 5, equal ring cutting is fluted, on groove Having some air-vents, loop body 1 is internal has first vestibule the 20, second vestibule 21, the first hole Chamber 20 connects composition the first gas passage with the groove on front probe jacket 2, the second vestibule 21 with after Groove connection composition the second gas passage on probe jacket 5.

See Fig. 1,7, detection device include detect flow flow transducer 13, detection pressure press Force transducer 12, flow transducer 13 has entrance point and the port of export, at the first vestibule 20, second The outer end of vestibule 21 is respectively connected with sampling joint 10, sampling joint 10 respectively by go out sample pipe 23, Sample feeding pipe 22 is connected with flow transducer 13 port of export and entrance point, is going out on sample pipe 23 by introducing Arm 24 be connected with pressure transducer 12.

The most when mounted, 1) 3 interference fits of popping one's head in are installed in first annular groove, rear probe protects Set 5 and probe 3 stretch in the second cannelure in the lump, and pass through threaded engagement so that 3 one end of popping one's head in Contacting with First terrace 8, the other end contacts with second step face 14, it is achieved by firm for probe 3 peace It is loaded in first annular groove；

2) fresh air imports reducing sleeve 6 front end to stretch in the 3rd cannelure, and is threaded connection, 3rd step surface 15 can limit fresh air and import the reducing sleeve 6 front end amount of stretching into so that installation site More accurate；

3) the front probe jacket 2 of one, probe 3, rear probe jacket 5, fresh air importing will be installed Reducing sleeve 6 loads inlet channel 19 in the lump, spacing by the 4th step surface 16, and at fresh air Import and reducing sleeve 6 upper screwed hole screws in screw 9, be fixed on loop body 1；

4) manually/machine control shifter 7 is from top to bottom inserted loop, and import through fresh air The slot to make way 17 of reducing sleeve 6, is installed in loop body 1；

5) end at first vestibule the 20, second vestibule 21 is mounted on sampling joint 10, the first hole End, chamber 20 sampling joint is connected to the port of export of flow transducer 13, the second hole by going out sample pipe 23 End, chamber 21 sampling joint is connected to the entrance point of flow transducer 13 by sample feeding pipe 22, and is going out Draw arm 24 on sample pipe 23, and be connected on pressure transducer 12 so that in probe 3 two ends shapes Become the loop of Guan Bi.

Preferably, during installation, between forward and backward probe jacket 2,5, and rear probe jacket 5 is with new Fresh gas imports and all uses thread connecting mode between reducing sleeve 6 so that easy accessibility, but its phase Connected mode between Hu is not limited to threaded, also can have other connected modes, the most bonding； 3 interference fits of simultaneously popping one's head in are arranged in first annular groove so that probe assembling easily, and is not easy Loosen.

Preferably, live gas is imported reducing sleeve 6 and is fastened on loop body 1 by screw 9, adopts Screw can be hexagon socket cap head screw, it is also possible to for cross recessed countersunk head sscrew etc..

Preferably, inside air inlet 18, there is conical internal thread, for threaded air inlet with intubating soon Joint 11, it is ensured that the air-tightness of air inlet；At air inlet 18 and in fresh air importing Reducing sleeve 6 arranges sealing member 4 with the joint of inlet channel 19, plays between air inlet and the external world Sealing function；Before being positioned at probe jacket 2 connect with rear probe jacket 5 end and with inlet channel 19 Joint be provided with sealing member 4, to probe inlet, outlet serve sealing function, sealing member 4 O RunddichtringO etc. can be used to have the packing ring of sealing function.

Preferably, probe 3 employing stainless steel material is made, and strengthens the physical property of probe, as anti- Rust, heat-resisting etc., and chemical reaction will not be freeed with the gas circulated therein, probe 3 is all right The metal material using other physical and mechanical properties good is made；Probe 3 is also just using honeycomb fashion simultaneously The design of hexagonal network structure, this makes the structure of probe more stable, gas by time resistance divide Cloth is uniform, adds the pressure differential at probe two ends so that after pressure transducer, flow transducer The gas flow values of output is more accurate.

Preferably, sample feeding pipe 22, go out sample pipe 23, arm 24 and all can use silica gel tube, it be also possible to use Other rubber hose for medicals.

See 6～7, the specific works process of the present embodiment: source of the gas by fast spigot joint 11 enter into Gas passage 19, due to the pressure reduction at 3 two ends of popping one's head in so that this air-flow has been divided into two bursts of tributaries, first Flowing by probe, flow into patient end, the second tributary is by rear probe jacket 5 central slot, due to it On there is some air-vents, and then flow into the second vestibule 21, pass sequentially through sampling joint 10, sample feeding pipe 22 enter flow transducer 13, and due to the effect of pressure reduction, air-flow is from flow transducer 13 port of export stream Going out, simultaneously output flow signal, hereafter an air-flow part is entered pressure transducer 12 by arm 24, from And obtain gas pressure value in loop, another part air-flow pass sequentially through out sample pipe 23, sampling joint 10, First vestibule 20, front probe jacket 2, and flow into patient end.

Claims

1. an anaesthetic absorbing loop, including loop body (1), has inlet channel (19) inside it, It is characterized in that: described inlet channel (19) is built-in with sampling probe (3), in described probe (3) Two ends and be positioned at that described loop body (1) is internal is respectively provided with gas passage, the gas passage described in two It is connected by the detection device of anesthesia mixed gas, so that probe (3), two gas passages, detection dress Put composition closed-loop path, described loop body (1) is additionally provided with remove wushu manually/machine control interpreter Structure (7), for manually providing anesthetic gases and automatically providing to switch between anesthetic gases；Institute The rear end stating probe is provided with rear probe jacket, and the leading inside of described rear probe jacket has the first ring Shape groove, described first annular trench bottom has the spacing First terrace (8) of probe, described probe (3) Interference fits is installed in described first annular groove.

Anaesthetic absorbing loop the most according to claim 1, it is characterised in that: described probe (3) Being fixed in inlet channel (19) by probe clamp device, described probe clamp device includes arranging At the front probe jacket (2) of probe (3) front end, it is arranged on the rear probe jacket of probe (3) rear end (5), and be arranged on rear probe jacket (5) rear end fresh air import reducing sleeve (6).

Anaesthetic absorbing loop the most according to claim 1, it is characterised in that: described gas passage Including the first gas passage and the second gas passage, at front probe jacket (2), rear probe jacket (5) Middle part all ring cuttings are fluted, have some air-vents on described groove, in described loop body (1) Portion has the first vestibule (20), the second vestibule (21), and described first vestibule (20) is protected with front probe Groove connection composition the first gas passage on set (2), described second vestibule (21) is protected with rear probe Groove connection composition the second gas passage on set (5).

Anaesthetic absorbing loop the most according to claim 3, it is characterised in that: described detection device Including detection flow flow transducer (13), detection pressure pressure transducer (12), described stream Quantity sensor (13) has entrance point and the port of export, at the first vestibule (20), the second vestibule (21) Outer end be respectively connected with sampling joint (10), and the sampling joint (10) being connected with the first cavity (20) With the sampling joint (10) being connected with the second cavity (21) is respectively by going out sample pipe (23), sample feeding pipe (22) it is connected with flow transducer (13) port of export and entrance point, passes through on sample pipe (22) going out The arm (24) introduced is connected with pressure transducer (12).

Anaesthetic absorbing loop the most according to claim 2, it is characterised in that: before described, probe protects The rear inside of set (2) has the second cannelure, and described second cannelure inwall has female thread, the end Portion has rear probe jacket (5) and probe (3) spacing second step face (14), described rear probe Sheath (5) front end coupling female thread arranges external screw thread, and described rear probe jacket (5) front end is stretched into In second cannelure, and it is threaded connection front probe jacket (2) so that probe (3) end thereof contacts First terrace (8), other end contact second step face (14), it is achieved probe (3) is firm to be installed In first annular groove.

Anaesthetic absorbing loop the most according to claim 5, it is characterised in that: after described, probe protects Set (5) rear inside has the 3rd cannelure, and inwall has female thread, and described fresh air imports The front end coupling female thread of reducing sleeve (6) is provided with external screw thread, and has at described externally threaded root Rear probe jacket (5) is spacing with the 3rd step surface (15), described fresh air importing reducing sleeve (6) Front end stretch in the 3rd cannelure, and be threaded connection rear probe jacket (5).

Anaesthetic absorbing loop the most according to claim 6, it is characterised in that: described fresh air Import reducing sleeve (6) middle part and have thin-walled slot to make way (17), there is inside it manually/machine control interpreter The installing space of structure (7), described manually/machine control shifter (7) by slot to make way (17) install In described loop body (1)；

Described fresh air imports reducing sleeve (6) rear inside and arranges himself spacing 4th step surface (16), and having screwed hole in upper and lower lateral symmetry, center arranges air inlet (18)；

Imported reducing sleeve (6) formed by front probe jacket (2), rear probe jacket (5), fresh air Probe clamp device by screw in screwed hole screw (9) be fastened on described loop body (1), And near air inlet (18) place and at fresh air importing reducing sleeve (6) and inlet channel (19) Joint sealing member (4) is set, be positioned at described front probe jacket (2) and rear probe jacket (5) Connect end the joint of inlet channel (19) is provided with sealing member (4).

Anaesthetic absorbing loop the most according to claim 7, it is characterised in that: described air inlet (18) Inner side has conical internal thread, and has been threaded connection air inlet in air inlet (18) outer end with fast slotting Pipe joint (11).

9. according to the anaesthetic absorbing loop described in claim 1 or 2 or 5, it is characterised in that: described Probe (3) uses stainless steel material to make, and uses honeycomb fashion regular hexagon network structure.