CN1121243C - Medical pressure transducer with sliding components - Google Patents
Medical pressure transducer with sliding components Download PDFInfo
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- CN1121243C CN1121243C CN95197904A CN95197904A CN1121243C CN 1121243 C CN1121243 C CN 1121243C CN 95197904 A CN95197904 A CN 95197904A CN 95197904 A CN95197904 A CN 95197904A CN 1121243 C CN1121243 C CN 1121243C
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Abstract
The present invention relates to a medical pressure transducer (10) which comprises a repeated use component (100) and a disposable circular top (200), wherein both sides of a repeated use film (124) on the repeated use component are provided with groove channels (160, 162); both sides of a disposable film (224) on the disposable circular top (200) are provided with installation wing plates (230, 232). The wing plates are inserted into the groove channels in a sliding mode for the installation of the circular top (200) so that the two films (124, 224) are opposite. Cam structures (180, 240) are arranged in the groove channels (160, 162) and on the installation wing plates (230, 232) to be arranged on the repeated use component (100) in the sliding mode along with the circular top (200) so that the circular top film (224) is driven to the position which is opposite to the repeated use film (124). In an optimized embodiment, the two groove channels (160, 162) are formed at the back parts of two front outer walls (164, 166); a bolt slot (192) into which a bolt (274) on the circular top (200) can be inserted is arranged in the outer surface (190) of one of the two front outer walls, and accordingly, the two films (124, 244) are locked on the opposite positions. The circular top comprises second wing plates (250, 252) which are spaced with the installation wing plates, and the front outer walls can be inserted into the second wing plates (250, 252). Grip parts (264, 265) are arranged on the second wing plates (250, 252), and one of the two grip parts is a locking blade (270) on which the bolt (274) is supported.
Description
Invention field
The present invention relates to medical pressure transducer, particularly such transducer, wherein, the disposable channel member of dome and so on can install on the sensor element that uses repeatedly and the hydraulic pressure conduction diaphragm that makes these two parts over against and conduction hydraulic pressure.
Background of invention
In for example hospital, usually to monitor the body fluid pressure of blood pressure and so on.Generally with the outer medical pressure transducer monitoring of patient body, this pressure transducer for example is communicated with patient's blood circulation with inserting the intravital conduit of patient this class pressure.This conduit is connected with a stream in the transducer through a pipe, is full of saline in this pipe and makes the intravital hydraulic pressure of patient pass to transducer.
But this transducer comprises the hydraulic pick off of this stream of sensing, thereby this pick off converts this hydraulic pressure to the signal of telecommunication corresponding with this hydraulic pressure.The signal of telecommunication is delivered to a display and is shown hydraulic pressure through a cable.
A kind of this successful especially class transducer is one or two part device, and wherein, the parts that expensive pick off is housed can use repeatedly, and another parts that have with the stream of contact patients are disposable unit.Two parts respectively have a diaphragm that covers pick off or stream.Be to measure the hydraulic pressure in the stream, thereby with screw thread disposable unit is screwed on the parts of use repeatedly and two diaphragms can be transmitted on the pick off over against the hydraulic pressure of stream.After the use, disposable unit is thrown away after the parts that use repeatedly screw off, and changes new, an aseptic disposable unit then.
United States Patent (USP) 4920972 illustrates an example of two parts transducers, and wherein, the disposable channel member that is called the liquid stream dome installs on the pick off that uses repeatedly rotationally.These two parts with screw threads for fastening make together two diaphragms over against and the conduction hydraulic pressure.Thereby the hydraulic pressure in the stream in this dome is transmitted on the pick off that uses parts repeatedly through the diaphragm and a curing gel of dome diaphragm and use repeatedly.As common, two parts of tightening with screw thread install on the gripper shoe that is contained on the bar then.
Another example of two parts transducers can be referring to International Patent Application WO 95/01195.As this application, particularly described in conjunction with Figure 11 of this application, this dome has two wing plates that outwards stretch on the diaphragm-operated both sides of dome, they insert one slidably and use repeatedly in two conduits of parts, and this uses parts to comprise pick off and repeatedly used diaphragm repeatedly.This two conduit also is positioned at and uses diaphragm-operated both sides repeatedly, thus the dome diaphragm can make things convenient for, slip into rapidly with pick off or use repeatedly diaphragm over against the position.Particularly, but use the parts structure to make gripper shoe repeatedly, thereby designs simplification is convenient to operation.But need make improvements slip wing plate and channel structure so that the use of transducer is more convenient, and improve two diaphragm-operated over against, the conduction hydraulic pressure.
According to one aspect of the present invention, one medical pressure transducer comprises that a disposable dome and uses parts repeatedly, and this disposable dome comprises a stream that is connected with a patient, a diaphragm that is connected with this stream and the installation wing plate that at least one is positioned at the diaphragm-operated one side of this dome and outwards stretches; This use repeatedly parts comprise a support member, one and the pick off, that forever links of this support member can pass to using diaphragm repeatedly and being positioned at least one conduit that uses diaphragm-operated one side repeatedly of pick off to hydraulic pressure, the dome wing plate inserts in this conduit slidably, thereby the dome diaphragm be slidably inserted into use repeatedly diaphragm over against the position on, it is characterized in that, use conduit and dome on one of at least cam structure and along with the dome wing plate be slidably inserted into this conduit and disposable dome diaphragm driven in and uses repeatedly diaphragm over against the position on.
Use this cam structure can make two diaphragms insert in this partial journey that uses parts repeatedly originally slightly spaced apart or contact not tightly at dome at least.Like this, two diaphragms can not damage or wear and tear when sliding relatively.But this cam structure must make two diaphragms be abutted together when two diaphragms arrive the stroke final position at least, so that correctly conduct hydraulic pressure.For this reason, in a preferred embodiment, this cam structure is included in one or more cam ramp of the sliding stroke end of two parts.Such inclined-plane can become a step at conduit bottom place, this step when the dome wing plate arrives its stroke final position against the dome wing plate.In the preferred embodiment, this conduit is positioned at the rear of outer wall before.Here, the top that wing plate is installed can have in addition such inclined-plane when wing plate arrives its final stroke against this preceding outer wall.
According to another aspect of the present invention, one medical pressure transducer comprises that a disposable dome and uses parts repeatedly as mentioned above, it substitutes or supplementary features are, this uses repeatedly a dead bolt slot on the parts, and a dead bolt (or dead bolt using repeatedly on the parts dead bolt slot on disposable dome) arranged on this disposable dome, mesh with this dead bolt slot and this dome is locked in this uses on the parts repeatedly at dome wing plate this dead bolt that slides when inserting in the conduit.In the preferred embodiment, this dead bolt slot is formed in this preceding outer wall, and this dead bolt is positioned at corresponding wing plate top on the dome, thus two diaphragms over against the time insert in this dead bolt slot.Therefore, this dome and use parts repeatedly and lock together equally reliably when being threaded togather and more more convenient than being threaded.
According to another aspect of the present invention, one medical pressure transducer comprises that a disposable dome and uses parts repeatedly as mentioned above, this conduit is positioned at this preceding outer wall rear, its another substitute or supplementary features are, have on this dome one with second wing plate of this installations wing plate spacing, thereby form a space for the preceding outer wall insertion that forms this conduit.Here, comprise one with a disposable dome that uses parts to use repeatedly according to this medical pressure transducer on the one hand of the present invention, this use repeatedly parts comprise a support member, one and the pressure transducer that forever links of this support member, can be transmitted to diaphragm of use repeatedly and syndeton on this pick off to hydraulic pressure; This disposable dome comprises a stream that is connected with patient, a diaphragm and a syndeton that is connected with this stream, thereby this syndeton cooperates dome to install to slidably with the syndeton of using parts repeatedly use repeatedly on the parts and make two diaphragms over against, it is characterized in that, the syndeton of dome comprises the first and second parallel wing plates that form a slot therebetween at least, and uses the syndeton of parts to comprise outer wall before the wing at least one this slot that inserts dome slidably repeatedly.In the preferred embodiment, second wing plate covers on the whole outer wall.Thereby the transducer that assembles looks and is not to be divided into two parts, and resembles one whole.Second wing plate covers whole outer wall can prevent that also foul from entering in the conduit that uses parts repeatedly.
In the preferred embodiment, there are two such conduits and two such installation wing plates to be slidably inserted in two conduits, two conduits and installation wing plate are positioned at its diaphragm-operated both sides.In the preferred embodiment, also have two second wing plates, the side of second wing plate (for example using fluting, sawtooth or embossing) to make the groove of band texture and form grip skid off dome in two conduits so that the operator slides into.One of groove can be made the groove shape of the band of dead bolt texture blade on it.Therefore, holding two second wing plates also can press down this blade and make dead bolt deviate from the dead bolt slot and take off dome the parts slidably from using repeatedly.
This shows, a kind of medical pressure transducer is provided, its disposable dome can take off slidably from using on the sensor element repeatedly, and two diaphragm-operated hydraulic pressure conductive performances improve, and the operator that also is more convenient for uses this transducer.
From accompanying drawing and following explanation, can know and find out above-mentioned and other purposes and advantage of the present invention.
Brief description of drawings
From following detailed description in conjunction with the accompanying drawings, can clearlyer find out certain characteristics of the present invention, in the accompanying drawing:
Fig. 1 is the axonometric chart of transducer of the present invention;
Fig. 2 is the front view of Fig. 1 transducer;
Fig. 3 is the front view that uses parts repeatedly of Fig. 1;
Fig. 4 is for to cut open the profile of getting along 4-4 line among Fig. 1;
Fig. 5 is for to cut open the decomposing section of getting along 5-5 line among Fig. 2;
Fig. 6 is the rearview of broken section of the disposable unit of Fig. 1;
Fig. 7 A-7C illustrates dome wing plate and the interaction of using the parts conduit repeatedly for to cut open the side view of getting along 7A-7A line among Fig. 2;
Fig. 8 is that a plurality of Fig. 1 transducers are contained in the decomposing schematic representation on the bar; And
Fig. 9 is that a plurality of Fig. 1 transducers are contained in the front view on the bar.
Detailed description of the accompanying drawings
Fig. 1 is the axonometric chart of medical pressure transducer 10 of the present invention.Transducer 10 comprises two critical pieces, and one is used sensor element 100 repeatedly for the present invention, and another installs to the disposable dome part 200 of the present invention who uses repeatedly on the parts 100 for removably sliding.
From Fig. 1-5 as seen, using parts 100 repeatedly is a tabular opaque plastics support member 102.Plate 102 comprises the straight left side 104, straight the right 106 and straight top margin and base 108,110 and defines a rectangular slab 102.One straight front 112 extends in each limit 104,106, between 108,110.
One integrated transducer room 114 (Figure 4 and 5) stretches out at surperficial 112 rears.One plastic tube 116 for example is cemented in the transducer room 114 with the viscose glue (not shown), is full of curing gel 117 in the plastic tube 116, and its bottom has an integrated circuit sensor chip 118 to install in printed circuit (PC) the plate substrate 120.There is the PC plate of appropriate circuitry (not shown) to be cemented on the pipe 116 on it, thereby pick off 118 forever is connected with using parts 100 repeatedly.The top of chamber 114 has a hole 122 to pass surface 122.One flexible sheet of use repeatedly 124 that for example becomes with polyurethane molding forever is housed on the hole 122.Make and to be transmitted to pick off 118 to hydraulic pressure from diaphragm 124 through gel 126 and 127 with the gel 126 that liquid state pours between diaphragm 124 chamber 114 and the pipe 116 from charging aperture 128.Sealing shuts up 128 and make the diaphragm 124 after fixing gel 126 that expands slightly.
The limit 130 of diaphragm 124 forms a cylindrical collar and inserts on the surface 112 in the cannelure 132 around the hole 122 and diaphragm 124 is fastened on the support member 102, uses the front 134 of diaphragm 123 to heave the place ahead, plane of 112 in front slightly repeatedly.Many conductors 140 are connected to calibration switch 142 and connector 144 on PC plate substrate 129 circuit and pick off 118 at 112 rears, surface that all are positioned at plate 102.Switch 142 is inserted in the bottom opened raised platform around a well 145 that is formed on the surface 112, and shift knob 146 is arranged in the hole 148 in the lower left corner (Fig. 3) of plate face 112.Lead that conductor 140 separates or ribbon cable and/or the conductive trace (not shown) on the PC plate 149 that a switch supports.Be stamped the submissive diaphragm 150 of a protection switch 142 on the hole 148, use the parts 100 pressing diaphragms can the pressing switch repeatedly thereby hold at diaphragm 150 positions with thumb and forefinger.The periphery of diaphragm 150 is bonded at viscose glue on the limit of raised platform around a well 145 at 148 places, hole.Pressing switch 142 can be calibrated as reference material United States Patent (USP) 4760730 is disclosed, but this switch directly is contained in repeatedly and uses in the parts, rather than a separate parts.
For being electrically connected with a display (not shown), from Fig. 2 and 3 as seen, a connector 144 is arranged at bottom, the bottom right of parts 100.Connector 144 can be a cylindrical plastic housing 152 that jack 154 wherein arranged, and it is contained in the spherical protuberances zone 156 of parts 100.Connector 144 can be from the base 100 connector jack 158 insert.Connector 144 can be the part of United States Patent (USP) 5167522 described one or two connector groups.One opaque back plate 157 can be cemented on the rear surface of plate 102 and seals above-mentioned parts with for example viscose glue (not shown).
For the disposable dome part 200 of installation as described below, as shown in Figure 3, at the right and left that uses diaphragm 124 repeatedly a pair of conduit 160,162 is arranged on the plate 102.Conduit 160,162 is respectively formed at preceding outer wall 164,166 rears that link with plate 102.For this reason, preceding outer wall 164,166 is connected respectively on the surface 112 through sidewall 170,172 with surface 112 parallel but spaced apart, thus in front 112 with the back side 174,176 of preceding outer wall 164,166 between form conduit 160,162.The transverse width of conduit 160,162 is determined by sidewall 170,172.
But the back side 174 of preceding outer wall 164 or 166 or the top margin 108 of 176 slave plates 102 tilt with a gradient (for example when molded) slightly to base 110.This gradient makes the width of conduit 160 or 162 narrow down along the insertion stroke directions of dome 200.On the bottom 178 of conduit 160,162 cam structure is arranged, its use is hereinafter handed over.Shown in cam structure in the preferred embodiment be one to trail the cam ramp 180 that step 184 constitutes by one 45 ° of inclined-planes 182 and, this step accurately defines the conduit width W
c(see figure 7).The top margin 186 of each wall 164,166 exposes.(not shown) can be sealed in each wall 160 or 162 bottom 178, but preferably opens as shown in the figure, to prevent accumulating dust in the conduit.
Can see clearly especially from Fig. 3 and 4, the dimple (at sidewall 172 on one side) of dead bolt slot 192 and so on is arranged in the outer surface 190 of the preceding outer wall 166 of right side conduit.Slot 192 stretches into the Road narrows 194 (at conduit 162 on one side) that also are formed in the outer surface 190, and the chamfering 196 of outer wall 166 was other before these Road narrows terminated in, and the use of these parts is hereinafter handed over.The remainder of outer surface 190 is straight and parallel with front 112.The outer surface 197 of outer wall 164 is same straight and parallel with front 112 before the left side.
From Fig. 5 and 6 as seen, the transparent or semitransparent plastics of disposable dome 200 usefulness are made, and comprise that one is defined in the rectangle central body portion 202 between limit, the left and right sides 204,206 and top margin and the base 208,210.Center, main part 202 rear has on a stream well 212 and the base 210 outlet 216 that stretches upwards the import 214 in well 212 the place aheads and stretch upwards top margin 208 from well 212 the place aheads be communicated with.Import is communicated with the stream 212 in the disposable dome 200 with outlet 214 and 216 cooperations.Stream 212 communicates with a macropore 218 on central part 202 back sides 220.Well 212 and hole 218 are defined by the cylindrical wall 221 in the central part 210, and wall 221 and limit 204,206 form each hole 222 between 208,210.Also can fill up plastics in the hole 222.No matter which kind of situation, the back side 220 of dome 200 is the flat face on the plane 112 that can be close to plate 102.
One is cemented in flexible sheet 224 on the central part 210 covers the hole 218 on the back side 220 and forms a conduction hydraulic pressure, fluid-tight wall and seal stream in the dome 200.The same with diaphragm 124, diaphragm 224 can form with polyurethane molding, has on it in neck ring (not shown) patchhole 218 annular groove (not shown) on every side.Perhaps, diaphragm 224 can be a urethane thin film, its peripheral or bonding or be heat-bonded to hole 218 around on, or be fastened in the groove (not shown) on every side of hole 218 with a for example compression ring (not shown).
For ease of using dome 200 and using plate 102 repeatedly, second group of wing plate 250,252 can be set.Wing plate 250,252 also 204 and 206 stretches out from the limit, but forms the space 254,256 (Fig. 4 and 7) of inserting for preceding outer wall with wing plate 230,232 spacings are installed.Thereby can find out that obviously space 254,256 becomes the slot of dome, outer wall 164 and 166 inserts before dome 200 is slidably inserted into when using parts 100 repeatedly for the wing of using parts repeatedly.Second wing plate 250,252 outwards stretches and covers outer wall 164 and 166, thereby becomes one when parts 200 and 100 are fitted together as shown in Figure 1 and appearance seems attractive in appearance.In addition, wing plate 250,252 also can hinder a grade dust and enters conduit 160,162 after dome 200 installs on the plate 102.
Shown in Fig. 2 and 6, can there be indentation 264 and 265 to form grip on the side 260,262 of second wing plate 250,252 and be convenient to the user (not shown) and installs and unload dome 200 on the parts 100 using repeatedly.Grip 264,265 (available fluting, sawtooth or embossing etc.) is made textured and is convenient to the user insertion or takes off dome.Can see clearly especially from Fig. 2, in fact the indentation grip 265 of right side second wing plate 252 is provided with and is and the indentation portion 264 identical indentation shapes of left side wing plate 250 and the locking or the deflection blade 270 of texture face.One end of blade 270 is supported with a dead bolt 274, stretches to wing plate 232 thereby these dead bolt 274 elasticity are connected on the dome 200 with wing plate 232 spaced apart ground.Locking-blade 270 stretches out from wing plate 252 bottoms 278 1 hinge regions 276, thereby shifts to central part 202 by the flexing action dead bolt 274 of locking-blade 270 at 280 places, top of wing plate 252.
When dome 200 is slidably inserted into when using parts 100 repeatedly, dead bolt 274 can be against the chamfering 196 (Fig. 3) of outer wall 166 and deflection blade 270 left.Further insertion along with dome 200, dead bolt 274 passes through on Road narrows 194, then when dome 200 all inserts, (clickly one) snaps in to the right in the groove 192, and dome 200 is locked on the plate 102 and make two diaphragms 224 and 124 be in over against the hydraulic position of conduction on (Fig. 7 C).If will take off dome 200, the user (not shown) upwards slides to the top margin 108 of plate 102 holding dome 200 pressing blades with the forefinger (not shown) on blade 270 in the indentation portion 264 after dead bolt 274 is deviate from and withdraws from dome 200 with the thumb (not shown) from dead bolt slot 192.
Dome 200 can be equipped with the tap 292 of filling with device 290 (for example filling with device shown in the United States Patent (USP) 5171230 soon) soon and being connected with outlet 216 that is connected with import 214.Available then pipe 294 is connected to a saline source (not shown) filling with device 290, with another pipe 296 tap 292 is connected to one and is placed on the interior conduit 298 (Fig. 2) of patient's blood circulation (not shown) and monitoring hydraulic pressure.
Fig. 7 A-7C (conduit 160 and each wall thereof cut for simplicity's sake) illustrates according to each side of the present invention dome 200 to be installed to and uses repeatedly on the parts 100.In Fig. 7 A, dome 200 is about to install on the plate 102, thereby wing plate 232 begins to enter conduit 162 with the direction of downward arrow A.Therefore, top margin 108 directions of wing plate 232 slave plates 102 of dome enter conduit 162.The chamfering wall 235 at place, wing plate 232 bottoms is run into the top 286 of preceding outer wall 166 and is helped wing plate 232 is pressed in the space or conduit 162 at preceding outer wall 166 rears of people.In Fig. 7 A, end face 190 spaced apart of second wing plate 252 and antetheca 166.
When dome 200 shown in Fig. 7 B downwards when diapire 110 moves on, most of length of wing plate 232 insert in the conduit 162 and wing plate 252 by antetheca 166 end faces 190 the place aheads.In this advances process, can see a space is arranged between diaphragm 224 and 124 or being not tight sliding-contact (representing) at least, thereby prevent to damage or the diaphragm that weares and teares, the diaphragm 124 that particularly can use repeatedly with some domes 200 by S.When stroke finished soon, chamfering 235 was against the inclined-plane 182 of cam ramp 180 and beginning is driven the bottom of wing plate 232 to surperficial 112 and diaphragm 124.Meanwhile, cam ramp 242 is also driven the top of wing plate 232 to surface 112 and diaphragm 124 against top margin 186, thereby the gap S between the diaphragm 224 and 124 begins to reduce (or not tight contacting begins to tighten up).In addition, dead bolt 274 deflection blade 270 and make dead bolt 274 enter Road narrows 194 against chamfering 196 (Fig. 3) and inwards.
When the 200 whole insertions of dome shown in Fig. 7 C are used in the parts 100 repeatedly, the bottom of wing plate 232 is positioned at tail end 184 belows and is tight against tail end 184 and the top 186 of outer wall 166 is positioned at tail end 244 tops of wing plate cam ramp 240 and be tight against tail end 244, thereby wing plate 232 is driven to plate face 112 and diaphragm 224 and 124 can conduct hydraulic pressure against each other.And wing plate 252 wholely covers the end face 190 of antetheca 166 and blade 270 sets back this moment second, thereby dead bolt 274 buckles in the dead bolt slot 192.The situation of wing plate 230 and conduit 160 is with identical shown in Fig. 7 A-7C.
During use, dome 200 installs to slidably as mentioned above and uses on the parts 100 back with conduit 298 stream 212 of transducer 10 to be connected with appropriate pipes 294,296 with patient repeatedly and represent that with 144 of connectors the signal of patient's blood pressure is sent to a for example display.Use when maybe needing to change dome 200 this patient, need only skid off conduit 160,162 backs of using parts 100 repeatedly (with pipe or separately) to dome 200 by lower blade 270 and throw away dome 200.According to patient, new dome 200 all installs to slidably as mentioned above and uses repeatedly on the parts 100 no matter be to use new pipe or salvaged pipes.In many cases, wish repeatedly to monitor blood pressure.At this moment, can be as following in conjunction with a plurality of transducers 10 of use as described in Fig. 8.
Each uses on the base plate 157 of parts repeatedly can have a mounting structure 300 that parts 100 are installed on the support 302, and this support installs to a bar that is fastened on the bar 306 and installs on the folder 304.A plurality of slots 308 that insert for a plurality of each mounting structure that uses parts 100 are repeatedly arranged on the support 302, respectively use parts 100 repeatedly with 310 lockings of the set lever on the support 302 then.Support 302 also comprises and can be inserted in the identical slot 308 and available bar is installed the handle 310 fastening identical mounting structures 300 on the end 312 of folder 304.Folder 304 is fastened on the bar 306 in the interaction of the screw 316 around for example york piece 314 and the bar 306 and so on common mode.As an alternative or add, each plate 102 can be made combination type interconnection plate shown in the international monopoly WO95/01195.
Because plate 102 is rectangle, therefore when as mentioned above a plurality of (see figure 9)s when using parts to be installed together repeatedly, its outward appearance more or less is one group of a plurality of parts that use repeatedly, thereby can regard combination type as, and promptly arbitrary parts 100 that use repeatedly can place arbitrary slot on the support 302.Dome 200 can install to it and use repeatedly on the parts 100 before or after corresponding component 100 installs to support 302.Perhaps, also can use one parts 100 to install to directly that bar is installed on the folder 304 repeatedly and without support 302.
From as seen last, a kind of medical pressure transducer is provided, comprise that one installs to a disposable dome that uses repeatedly on the parts slidably, use thereby improve two diaphragm-operated hydraulic pressure conductivity and make this transducer be convenient to user.Although use two wing plates and two conduits in the preferred embodiment, can use wherein at least one.In addition, for example suitably regulate diaphragm 124 or the height of wing plate 230,232 be installed, preceding outer wall can with front 112 coplines.In addition, although shown in dead bolt slot 192 on support member 102 and dead bolt 274 on dome 200, their position also can be turned around.Therefore shown in more wide in range aspect of the present invention is not limited to and described detail, apparatus and method and il-lustrative example.
Claims (26)
1, a medical pressure transducer, comprise that a disposable dome (200) and uses parts (100) repeatedly, this disposable dome comprises that the dome that a stream (212) that can be connected with a patient, a disposable dome diaphragm (224) that is connected with this stream and at least one extend in one side of this disposable dome diaphragm (224) installs wing plate (230,232); This use repeatedly parts comprise a support member (102), one and the hydrostatic sensor (118), that forever links of this support member can pass to hydraulic pressure the diaphragm of use repeatedly (124) of pick off and be positioned at least one conduit (160 that uses diaphragm-operated one side repeatedly, 162), dome is installed wing plate and is inserted slidably in this conduit, thus disposable dome diaphragm be slidably inserted into use repeatedly diaphragm over against the position on; It is characterized in that, use conduit (160,162) and dome that wing plate (230 is installed, 232) cam structure (180 on one of at least, 240), along with dome is installed wing plate and is slidably inserted into this conduit, disposable dome diaphragm (224) be driven into use repeatedly diaphragm (124) over against the position on.
2, a medical pressure transducer, comprise the parts of use repeatedly (100) with a disposable dome (200) use, this disposable dome comprises that the dome that a stream (212) that can be connected with a patient, a disposable dome diaphragm (224) that is connected with described stream and at least one extend in one side of described disposable dome diaphragm (224) installs wing plate (230,232); This use repeatedly parts comprise a support member (102), one and the hydrostatic sensor (118), that forever links of this support member can pass to hydraulic pressure the diaphragm of use repeatedly (124) of pick off and be positioned at least one conduit (160 that uses diaphragm-operated one side repeatedly, 162), dome is installed wing plate and is inserted slidably in this conduit, thus disposable dome diaphragm be slidably inserted into use repeatedly diaphragm over against the position on; It is characterized in that, use the cam structure (180) on the conduit, along with described dome is installed wing plate and is slidably inserted into this conduit, disposable dome diaphragm (224) be driven into use repeatedly diaphragm (124) over against the position on.
3, one medical pressure transducer, comprise one with a disposable dome (200) that uses parts (100) to use repeatedly, this uses parts to comprise a support member (102) repeatedly, one hydrostatic sensor (118) that forever links with this support member, one can pass to hydraulic pressure the diaphragm of use repeatedly (124) of described pick off and be positioned at described at least one conduit (160 that uses diaphragm-operated one side repeatedly, 162), this disposable dome comprises a stream (212) that can be connected with a patient, the one disposable dome diaphragm (224) that is connected with described stream and at least one extend in one side of described disposable dome diaphragm (224), insert the described conduit (160 that uses parts repeatedly slidably, 162) in and make disposable dome diaphragm be slidably inserted into described use repeatedly diaphragm over against locational dome wing plate (230,232) is installed; It is characterized in that, use dome that cam structure (240) on the wing plate is installed, along with described dome is installed wing plate and is slidably inserted into described conduit, disposable dome diaphragm (224) be driven into to described use repeatedly diaphragm (124) over against the position on.
4, by the described transducer of claim 1, wherein, this cam structure (180) is positioned on this conduit (160,162).
By the described transducer of claim 4, be further characterized in that 5, dome is installed on the wing plate (230,232) second cam structure (240).
6, by the described transducer of claim 1, wherein, this cam structure (240) is positioned at this dome and installs on the wing plate (230,232).
7, by the described transducer of arbitrary claim in the claim 2,4 and 5, wherein, this cam structure (180) is formed on the bottom (178) of this conduit (160,162).
8, by claim 3 or 6 described transducers, wherein, this cam structure (240) is formed on this dome and installs on the top (236) of wing plate (230,232).
9, by the described transducer of claim 5, wherein, this second cam structure (240) is formed on this dome and installs on the top (236) of wing plate (230,232).
10, by the described transducer of arbitrary claim among the claim 1-3, wherein, this cam structure (180,240) comprises a step (184,244).
11, by the described transducer of arbitrary claim among the claim 1-2, wherein, this cam structure (180,240) comprises an inclined-plane (182,242).
12, by the described transducer of arbitrary claim among the claim 1-3, comprise that further an elasticity is connected this dead bolt of a dead bolt (274) on the dome (200) along with dome is installed wing plate (230,232) be slidably inserted in the conduit (160,162) and this dome (200) is locked in uses repeatedly on the parts (100).
13, by the described transducer of arbitrary claim among the claim 1-3, it is further characterized in that, one dimple (192) and a projection (274) are arranged respectively on support member and the dome (200), this dimple (192) is arranged to along with dome is installed wing plate (230 with the relative position of this projection (274), 232) be slidably inserted into that this projection in the conduit (160,162) is inserted in this dimple and disposable diaphragm be locked in use repeatedly diaphragm over against the position on.
14, by the described transducer of claim 13, wherein, this dimple is the dead bolt slot (192) on the support member (102), and this projection is the dead bolt (274) on the dome (200).
15, by the described transducer of claim 14, wherein, outer wall (164,166) rear before conduit (160,162) is formed on.
16, by the described transducer of claim 15, it is further characterized in that this dimple (192) is formed on the preceding outer wall (164,166).
17, by the described transducer of claim 13, it is further characterized in that a deflection blade (270) is arranged on this dome, and this projection (274) is subjected to the support of this deflection blade (270).
18, by the described transducer of claim 17, wherein, this projection (274) is supported on the top (272) of deflection blade (270).
19, by the described transducer of arbitrary claim among the claim 1-3, be further characterized in that, conduit (160,162) be formed between the preceding outer wall (164,166) second wing plate (250,252) with dome wing plate (230 is installed, 232) spacing and form the slot (254,256) of preceding outer wall (164,166).
20, by the described transducer of claim 19, be further characterized in that grip (264,265) is arranged on second wing plate (250,252).
21, by the described transducer of claim 19, wherein, second wing plate (250,252) is installed wing plate (230,232) with dome and is stretched abreast.
22, by the described transducer of claim 20, wherein, grip (264,265) is formed on the side (260,262) of second wing plate (250,252).
23, by the described transducer of arbitrary claim among the claim 1-3, wherein, this uses parts (100) to comprise two described conduits (160,162) repeatedly, and this disposable dome (200) comprises two described domes installation wing plates (230,232).
24, by the described transducer of claim 23, wherein, conduit (160,162) is positioned at the both sides of using diaphragm (124) repeatedly, and two domes are installed the both sides that wing plate is positioned at disposable dome diaphragm (224).
25,, further comprise being contained in the calibration switch (142) that support member (102) is gone up, is electrically connected with this pick off (118) by the described transducer of arbitrary claim among the claim 1-3.
26, by the described transducer of arbitrary claim among the claim 1-3, wherein, support member (102) comprises rectangle side (104,106,108,110) all around and exposes a front (112) of using diaphragm (124) repeatedly on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95197904A CN1121243C (en) | 1995-06-28 | 1995-06-28 | Medical pressure transducer with sliding components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95197904A CN1121243C (en) | 1995-06-28 | 1995-06-28 | Medical pressure transducer with sliding components |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03148963 Division CN1261073C (en) | 1995-06-28 | 1995-06-28 | Medical pressure transducer with sliding piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1187775A CN1187775A (en) | 1998-07-15 |
| CN1121243C true CN1121243C (en) | 2003-09-17 |
Family
ID=5083429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95197904A Expired - Fee Related CN1121243C (en) | 1995-06-28 | 1995-06-28 | Medical pressure transducer with sliding components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1121243C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106388799B (en) * | 2016-09-26 | 2023-06-06 | 柳州市人民医院 | Invasive pressure monitoring sensor liquid injection tube and needle tube matched with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2182247A (en) * | 1985-10-31 | 1987-05-13 | Cobe Lab | Apparatus for supporting a fluid flow cassette |
| US4920972A (en) * | 1987-01-27 | 1990-05-01 | Medex, Inc. | Gel-filled blood pressure transducer |
| WO1991005576A1 (en) * | 1989-10-17 | 1991-05-02 | Bio-Flo Limited | Transmembrane pressure controlled filtration system |
| WO1995001195A1 (en) * | 1993-06-30 | 1995-01-12 | Medex, Inc. | Modular interconnecting component support plate |
-
1995
- 1995-06-28 CN CN95197904A patent/CN1121243C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2182247A (en) * | 1985-10-31 | 1987-05-13 | Cobe Lab | Apparatus for supporting a fluid flow cassette |
| US4920972A (en) * | 1987-01-27 | 1990-05-01 | Medex, Inc. | Gel-filled blood pressure transducer |
| WO1991005576A1 (en) * | 1989-10-17 | 1991-05-02 | Bio-Flo Limited | Transmembrane pressure controlled filtration system |
| WO1995001195A1 (en) * | 1993-06-30 | 1995-01-12 | Medex, Inc. | Modular interconnecting component support plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1187775A (en) | 1998-07-15 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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