CN106361312A - Guide wire for measuring blood pressure in blood vessel - Google Patents
Guide wire for measuring blood pressure in blood vessel Download PDFInfo
- Publication number
- CN106361312A CN106361312A CN201610876601.8A CN201610876601A CN106361312A CN 106361312 A CN106361312 A CN 106361312A CN 201610876601 A CN201610876601 A CN 201610876601A CN 106361312 A CN106361312 A CN 106361312A
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- China
- Prior art keywords
- chamber
- cylindrical mount
- induction part
- interlayer
- seal wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000004204 blood vessel Anatomy 0.000 title abstract description 6
- 230000036772 blood pressure Effects 0.000 title abstract description 4
- 239000011229 interlayer Substances 0.000 claims abstract description 45
- 230000006698 induction Effects 0.000 claims description 65
- 238000009434 installation Methods 0.000 claims description 35
- 239000004020 conductor Substances 0.000 claims description 25
- 238000009530 blood pressure measurement Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000019622 heart disease Diseases 0.000 description 2
- 208000031225 myocardial ischemia Diseases 0.000 description 2
- 238000002601 radiography Methods 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 201000000057 Coronary Stenosis Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000009084 cardiovascular function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 210000004165 myocardium Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0001—Catheters; Hollow probes for pressure measurement
- A61M2025/0002—Catheters; Hollow probes for pressure measurement with a pressure sensor at the distal end
Abstract
The invention relates to a guide wire for measuring the blood pressure in a blood vessel. The guide wire comprises a far end tube, a near end tube, an inner core wire and a pressure sensor, wherein the far end tube comprises a front end tube part I, a cylinder mounting piece and a far end tube part II which are arranged sequentially; the cylinder mounting piece comprises a cylinder mounting piece body with a developing function; the cylinder mounting piece body is provided with an inner cavity which runs through the two end parts of the cylinder mounting piece body; the cylinder mounting piece also comprises a longitudinal interlayer which is arranged in the inner cavity and along the axial direction of the cylinder mounting piece body; the interlayer divides the inner cavity into a first cavity and a second cavity which are independent mutually; the inner core wire is positioned in the first cavity; and the pressure sensor is positioned in the second cavity. The pressure sensor and the inner core wire are arranged in the two mutually independent cavities correspondingly, so that the inner core wire is not contacted with the pressure sensor completely and directly, the pressure interference caused by the structure of the guide wire and other pressure interference during clinical application can be avoided, and the measuring accuracy is guaranteed.
Description
Technical field
The invention belongs to technical field of medical instruments, it is related to a kind of intravascular pressure used in a kind of blood vessel intervention operation
Measurement medical apparatus and instruments are and in particular to a kind of Ink vessel transfusing blood pressure measurement seal wire.
Background technology
Heart disease is the current mankind first killer, and myocardial ischemia is the common cause in heart disease.Control at present
The Main Means treating ischemia class cardiovascular diseasess are minimally invasive intervention operations, and judge whether that needs are further intervened operation,
Current main tool is angiocardiography.To painstaking effort tubular bodies (i.e. intravascular space diameter) whether angiocardiography can only
Change is judged it is impossible to judge to whether cardiovascular function (being exactly to convey blood ability) changes, briefly, may
This can be led to control incurable, should not control and but control.Although many times radiography sees that angiostenosiss are serious, the function of its conveying blood
And it is not affected by great impact, do not need to be performed the operation.Judge whether to intervene operation mainly by heart radiography at present, not
Offer one intuitively feature judging quota whether can be changed with regard to blood supply of cardiac muscle ability.And, the operation such as intravascular stent is installed,
Its side effect may result in unnecessary heart attack event, and mounting bracket also can increase the medical expense of sufferer simultaneously.
Through long-term basic and clinic studies, ffr (blood flow reserve fraction is also Pressure wire) has become as coronary stenosis feature
The generally acknowledged index evaluated.For doctor, ffr can judge whether myocardial ischemia provides reliable basis to sufferer.
Pressure wire will play its normal function, is necessary for realizing the accurate measurement to intravascular pressure.Traditional pressure
Seal wire is that sensor is arranged in core filaments in structure, and then outside puts a metal-back again, and metal-back has relatively
Big opening corresponds to the sensitive surface of sensor.Traditional Pressure wire is done in order to avoid the pressure that core filaments modification causes to sensor
Disturb, below sensor sensing functional area (being in distal sensor position) and far-end corresponding core filaments region can be carried out part
Empty that (that is sensor is near so that the inducing function region of sensor is not contacted with core filaments with distal direction in lower section
End and core filaments directly contact, and the lower section of sensor and far-end are not directly contacted with core filaments).Meanwhile, traditional Pressure wire is
Avoid the pressure disturbances that metal-back modification causes to sensor, require sensor with core filaments high in the axial direction in assembling
Degree parallel, also require metal-back correspond to sensor sensing face opening bigger than whole sensor distal peripheral profile.
Otherwise easily cause the pressure disturbances to sensor at metal shell opener.But this opening again can not be too big, otherwise can drop again
The protection to sensor sensing region for the low metal shell, leads to blood vessel wall directly contact sensor sensing region, so measures
Blood pressure just completely inaccurate.Case above leads to conventional pressure seal wire to there is very high difficulty in product design and fit on
Degree, the operation ease extreme difference in manufacture process.
Content of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, provides a kind of improved Ink vessel transfusing blood pressure
Measurement seal wire.
For solving above technical problem, the present invention adopts the following technical scheme that
A kind of Ink vessel transfusing blood pressure measurement seal wire, the proximal tube being connected with one end of described distal tube including distal tube and one end, institute
State distal tube one, cylindrical mount and the distal tube two that distal tube includes setting gradually, described proximal tube and distal tube two
Portion is connected, and internal core filaments that described measurement seal wire also includes being arranged in described cylindrical mount, is arranged on described cylinder and installs
The conductor wire that pressure transducer in part and two ends are connected with described pressure transducer and proximal tube respectively, described cylindrical mount
Including the cylindrical mount body with developing function, described cylindrical mount body has and runs through described cylindrical mount body
The inner chamber at both ends, described cylindrical mount also includes being arranged on described interior intracavity and the axial direction along described cylindrical mount body
Longitudinal interlayer of direction setting, described inner chamber is separated into first chamber independent of each other and second chamber by described longitudinal interlayer,
Described internal core filaments are located in described first chamber and to extend described first chamber remote with described for one end of described internal core filaments
End pipe one is fixedly installed, and the other end of described internal core filaments extends described first chamber and sequentially passes through described distal tube two
The described other end of portion and proximal tube and described internal core filaments and described proximal tube are fixedly installed, and described pressure transducer is located at institute
State second chamber and be fixedly installed in described second chamber.
Preferably, described second chamber include the chamber one for accommodating described pressure transducer and being used for accommodate described
The chamber of conductor wire two, described chamber one shares described longitudinal interlayer with described first chamber, and described conductor wire is located at institute
State in chamber two and one end of described conductor wire is connected with described pressure transducer and the other end passes described chamber two simultaneously
Sequentially pass through described distal tube two with proximal tube and the described other end of described conductor wire is connected with described proximal tube.
It is highly preferred that described pressure transducer includes being fixedly installed on the installation portion in described chamber one and is located at described
In chamber one and be formed at described installation portion one end and along described cylindrical mount body axial direction extend set
There is the induction part of sensing chip, described conductor wire is connected with described installation portion.
It is further preferred that described induction part near described distal tube one and described installation portion is away from described distal tube one
Portion, the one side towards described chamber two of described induction part is defined as top surface, and all outer surfaces of described induction part are respectively
Described top surface, towards the bottom surface of described longitudinal interlayer, towards described distal tube one and connect the end face of described top surface and bottom surface
And be located at described end face two side and connect the side of described top surface and bottom surface, described top surface, bottom surface, side, end face all do not contact
Described cylindrical mount.
It is further preferred that described longitudinal interlayer include setting corresponding with described installation portion interlayer one and with institute
State the interlayer two that induction part is correspondingly arranged, the one side towards described installation portion of described interlayer one is higher than described interlayer two
The one side towards described induction part described interlayer one is contacted and the described bottom of described induction part with described installation portion
Face does not contact described interlayer two.
Specifically, the cross section of the radial direction in described cylindrical mount body of described induction part is less than described installation
The cross section of the radial direction in described cylindrical mount body in portion makes side described in two sides, described top surface all not contact institute
State cylindrical mount.
More specifically, the width of described induction part is less than the width of described installation portion, described in the correspondence of described chamber two
The width that the width of the part of the position of induction part is more than described induction part makes described in the described top surface of described induction part, two sides
Side does not all contact described cylindrical mount.
Specifically, the position of side described in correspondence two side of described cylindrical mount body opens up and runs through described cylinder installation
The side opening of part body two sidepiece, the size of described side opening makes side described in two sides, institute more than the size of side described in either side
State top surface, described bottom surface and all do not contact described cylindrical mount, the distal interface of described side opening and described cylindrical mount body
The distance of far-end end face be less than or equal to the far-end end face of described end face and described cylindrical mount body of described induction part
Distance makes the described end face of described induction part not contact described cylindrical mount.
It is highly preferred that the cross section of described second chamber make in " convex " font described second chamber have wider portion and
Narrower part, described chamber one is described wider portion, and described chamber two is described narrower part.
It is further preferred that being provided with apical pore on described cylindrical mount body, described induction chip is arranged on described
Induction part towards in the one side of described chamber two, described induction part be provided with the one side of described induction chip towards described top
Hole.
Preferably, described cylindrical mount body is metalwork, the material of described longitudinal interlayer and described cylindrical mount
The material of body is identical and described longitudinal interlayer and this body by integral forming of cylindrical mount.
Further, the both ends of described cylindrical mount body are respectively provided with the described distal tube of connection one, remote
The counterbore that end pipe is two.
Further, described proximal tube is included one end and is pushed away with described with described two push pipes being connected of distal tube and one end
Send the linkage section that the other end of pipe is connected.
Further, described linkage section includes and the described insulation tube that is connected of pipe and coaxially connected with described insulation tube of pushing
Metallic conduction ring, the described other end of described conductor wire sequentially pass through described push pipe, insulation tube and metallic conduction ring, and institute
State the described other end of conductor wire and described metallic conduction ring is connected to form conductive path.
Further, described distal tube, proximal tube are coaxially disposed.
Due to the enforcement of technique scheme, the present invention compared with prior art has the advantage that
Pressure transducer and internal core filaments are separately positioned on two chambeies independent of one another by the Ink vessel transfusing blood pressure measurement seal wire of the present invention
Interior, so that internal core filaments are not directly contacted with completely with pressure transducer, can avoid seal wire self structure in clinical practice
The pressure disturbances brought and other pressure disturbances are it is also possible to effectively protect pressure transducer, it is to avoid pressure transducer and blood vessel wall
The pressure disturbances that directly contact is brought, thus ensure that the accuracy of measurement.Invention also reduces measurement seal wire is in fit on
Difficulty.
Brief description
Fig. 1 is blood pressure measurement seal wire overall structure diagram of the present invention；
Fig. 2,3 be embodiments of the invention 1 pressure transducer with the different angle of assembling structure relation of cylindrical mount
Axonometric chart；
Fig. 4 is the enlarged front view of Fig. 2；
Fig. 5 is the axial sectional view (pressure transducer does not cut open) of Fig. 2；
Fig. 6 is the axonometric chart of the cylindrical mount of embodiment 1；
Fig. 7 is the enlarged front view of the cylindrical mount of embodiment 1；
Fig. 8 is the axial sectional view of Fig. 6；
Fig. 9 is the schematic diagram of the pressure transducer of embodiment 1；
Figure 10 is the axonometric chart of the assembling structure relation of the pressure transducer of embodiments of the invention 2 and cylindrical mount；
Figure 11 is the enlarged front view of Figure 10；
Figure 12 is the enlarged side view of Figure 10；
Figure 13 is the axial sectional view (pressure transducer does not cut open) of Figure 10；
Figure 14,15 be embodiment 2 the different angles of cylindrical mount under axonometric chart；
Figure 16 is the enlarged front view of Figure 14；
Figure 17 is the axial sectional view of Figure 14；
Figure 18 is the axonometric chart of the pressure transducer of embodiment 2；
In figure: 1, distal tube；10th, distal tube one；11st, cylindrical mount；110th, cylindrical mount body；111st, longitudinally every
Layer；111a, interlayer one；111b, interlayer two；12nd, distal tube two；2nd, proximal tube；21st, push pipe；22nd, insulation tube；23、
Metallic conduction ring；3rd, pressure transducer；31st, installation portion；32nd, induction part；4th, apical pore；5th, side opening；6th, induction chip；7th, first
Chamber；8th, second chamber；81st, chamber one；82nd, chamber two；9th, counterbore；A, top surface；B, bottom surface；C, end face；D, side.
Specific embodiment
In the present invention, mentioned " near-end ", " far-end " refers to measure seal wire in use apart from the distance of people, leans on
Nearly executor direction is near-end, otherwise is far-end.In schematic diagram of the present invention, internal core filaments, conductor wire are all not drawn into.Separately, the present invention
The method in clinical application that the method in clinical application of blood pressure measurement seal wire measures seal wire with traditional blood pressure is similar, no longer Ao Shu herein.
With reference to Figure of description, the invention will be further described.
Embodiment 1
The present invention provides a kind of Ink vessel transfusing blood pressure measurement seal wire, and as shown in Fig. 1 ~ 18, this measurement seal wire includes distal tube 1 and one end
The proximal tube 2 being connected with one end of distal tube 1, distal tube one 10 that distal tube 1 includes setting gradually, cylindrical mount 11 and
Distal tube two 12, proximal tube 2 is connected for two 12 with distal tube, and measurement seal wire also includes being arranged on interior in cylindrical mount 11
Portion's core filaments, the pressure transducer 3 being arranged in cylindrical mount 11 and two ends are connected with pressure transducer 3 and proximal tube 2 respectively
Conductor wire.
In the present invention, proximal tube 2 includes push pipe 21 and one end and the push pipe 21 that one end is connected for two 12 with distal tube
Connected linkage section, linkage section includes and pushes insulation tube 22 and metallic conduction ring 23, insulation tube 23 and the metal that pipe 21 is connected
Conducting ring 23 is provided with multiple, multiple insulation tubes 22 and metallic conduction ring 23 arranged for interval, and one end of conductor wire is passed with pressure
Sensor 3 is connected, and the other end of conductor wire and metallic conduction ring 23 are connected to form conductive path.Push pipe 21, insulation tube 22 and gold
Belong to conducting ring 23 to be coaxially disposed.
In the present invention, distal tube 1 and proximal tube 2 are coaxially disposed.
In the present invention, cylindrical mount 11 includes the cylindrical mount body 110 with developing function, and cylindrical mount is originally
Body 110 has the inner chamber running through cylindrical mount body 110 both ends, and cylindrical mount 11 also includes being arranged on interior intracavity and edge
Longitudinal interlayer 111 of the axial direction setting of cylindrical mount body 110, cylindrical mount body 110 is metalwork, longitudinally every
The material of layer 111 is identical with the material of cylindrical mount body 110 and longitudinal interlayer 111 with cylindrical mount body 110 integrally
Molding.
The both ends of cylindrical mount body 110 are respectively provided with and connect distal tube one 10, distal tube two 12
Counterbore 9 makes cylindrical mount body 110 form coaxial effect with distal tube one 10, two 12 latter three that are connected of distal tube.
Inner chamber is separated into first chamber 7 independent of each other and second chamber 8 by longitudinal interlayer 111, and internal core filaments are located at the
In one chamber 7 and one end of internal core filaments are extended first chamber 7 and are fixedly installed for one 10 with distal tube, internal core filaments another
End extend first chamber 7 and sequentially pass through distal tube two 12 and proximal tube 2 and internal core filaments the other end solid with proximal tube 2
Fixed setting, pressure transducer 3 is located in second chamber 8 and is fixedly installed in second chamber 8, and conductor wire is located at second chamber 8
Interior and one end of conductor wire is connected with pressure transducer 3, and the other end of conductor wire passes second chamber 8 and sequentially passes through distal tube
Two 12, proximal tube 2 and being connected with proximal tube 2, specifically, the other end of conductor wire sequentially passes through distal tube two 12, pushes
Pipe 21, insulation tube 22 are connected with metallic conduction ring 23 and with metallic conduction ring 23.
Second chamber 8 includes the chamber one 81 for accommodating pressure transducer 3 and the chamber two for accommodating conductor wire
Portion 82, chamber shares longitudinal direction interlayer 111 with first chamber 7 for one 81, and pressure transducer 3 includes being fixedly installed on chamber one 81
Installation portion 31 and the one end and the axle along cylindrical mount body 110 that are located in chamber one 81 and are formed at installation portion 31
The induction part 32 being provided with sensing chip 6 extending to direction, induction part 32 and installation portion 31 are respectively positioned in chamber one 81 and pacify
Dress portion 31 is fitted close to fixedly mount portion 31 for one 81 with chamber, and conductor wire is connected with installation portion 31, specifically, conductor wire position
In chamber two 82 and one end of conductor wire and installation portion 31 towards chamber two 82 one side be connected, the other end passes chamber
Room two 82 and sequentially pass through distal tube two 12, push pipe 21, insulation tube 22 and metallic conduction ring 23 and metallic conduction ring 23
It is connected.
Apical pore 4 is provided with cylindrical mount body 110, induction chip 6 be arranged on induction part 32 towards chamber two
In 82 one side, towards apical pore 4, apical pore 4 can be than induction part 32 circumference for the one side of the setting induction chip 6 of induction part 32
Big it is also possible to less than the circumference of induction part 32.
In the present invention, the cross section of second chamber 8 makes second chamber 8 have wider portion and narrower part in " convex " font
Point, chamber one 81 is wider portion, and chamber two 82 is narrower part.
Specifically, induction part 32 near distal tube one 10 installation portion 31 away from distal tube one 10, induction part 32
It is defined as top surface a towards the chamber one side of two 82, induction chip 6 is arranged on top surface a, and all outer surfaces of induction part 32 divide
Not Wei top surface a, be longitudinally facing interlayer 111 bottom surface b, towards distal tube one 10 and connect top surface a and bottom surface b end face c and
Positioned at end face c bis- side and connect top surface a and bottom surface b side d, top surface a and bottom surface b be two relative faces, top surface a, bottom surface b,
End face c, side d all do not contact cylindrical mount 11.
Wherein, top surface a, bottom surface b, end face c, side d all do not contact cylindrical mount 11 set-up mode can have multiple,
In the present embodiment in the following way:
Longitudinal baffle 111 include setting corresponding with installation portion 31 one 111a of interlayer and with induction part 32 be correspondingly arranged every
Two 111b of layer, the one side towards installation portion 31 of one 111a of interlayer is higher than two 111b of interlayer towards the one of induction part 32
Face makes that one 111a of interlayer is contacted with installation portion 31 and the bottom surface b of induction part 32 does not contact two 111b of interlayer.
The cross section of the radial direction in cylindrical mount body 110 of induction part 32 is less than pacifying in cylinder of installation portion 31
The cross section of the radial direction of piece installing body 110 makes the side d of two sides, top surface a all not contact cylindrical mount 11.
Specifically, the width of induction part 32 is less than the width of installation portion 31, the position of the corresponding induction part 32 that chamber is two 82
The width of the part put is more than the width of induction part 32 so that the top surface a of induction part 32, two side side d all do not contact cylinder and install
Part 11.
Because inner chamber is through the both ends of cylindrical mount body 110, so first chamber 7, second chamber 8 are inevitable
Run through the both ends of cylindrical mount body 110, then the end face c of induction part 32 does not contact cylindrical mount body 110 yet.
Separately, one 10 end with cylindrical mount body 110 of distal tube is connected, and the end of cylindrical mount body 110
Portion is provided with counterbore 9, and after distal tube is connected with cylindrical mount body 110 for one 10, induction part 32 can't be with distal tube one
Portion 10 contacts.
Embodiment 2
In the present embodiment, the top surface a of induction part 32, bottom surface b, end face c, side d all do not contact the setting side of cylindrical mount 11
Formula is different from embodiment 1, and other are with embodiment 1.
As shown in Figure 10 ~ 18, longitudinal baffle 111 include setting corresponding with installation portion 31 one 111a of interlayer and with sense
Answer two 111b of interlayer that portion 32 is correspondingly arranged, the one side towards installation portion 31 of one 111a of interlayer is higher than two 111b of interlayer
The one side towards induction part 32 one 111a of interlayer is contacted with installation portion 31 and the bottom surface b of induction part 32 do not contact every
Two 111b of layer.
The seat of the correspondence two side side d of cylindrical mount body 110 opens up runs through cylindrical mount body 110 2 sidepiece
Side opening 5, the size that the size of side opening 5 is more than either side side d makes two side side d, top surface a, bottom surface b all not contact cylinder
Installed part 11, the distal interface of side opening 5 is less than or equal to induction part 32 with the distance of the far-end end face of cylindrical mount body 110
The end face c that end face c makes induction part 32 with the distance of the far-end end face of cylindrical mount body 110 does not contact cylindrical mount.
Again because inner chamber is through the both ends of cylindrical mount body 110, so first chamber 7, second chamber 8 are inevitable
Also extend through the both ends of cylindrical mount body 110, so the end face c of induction part 32 also must not contact cylindrical mount body
110.
Separately, one 10 end with cylindrical mount body 110 of distal tube is connected, and the end of cylindrical mount body 110
Portion is provided with counterbore 9, and after distal tube is connected with cylindrical mount body 110 for one 10, induction part 32 can't be with distal tube one
Portion 10 contacts.
The position of the correspondence two side side d of cylindrical mount 12 opens up side opening 111 respectively, and the size of each side opening 111 is more than
The size of respective side side d makes two side side d, top surface a all not contact and cylindrical mount 11.
The cross-sectional area of the induction part 32 of the pressure transducer of the present embodiment and installation portion 31 is equal.
In sum, the pressure transducer 3 of the blood pressure measurement seal wire of the present invention is not contacted completely with internal core filaments, also avoids
Induction part 32 contacts the structure design of cylindrical mount 11 and miscellaneous part, farthest can keep away in clinical practice
Pressure disturbances that seal wire self structure brings are exempted from it is also possible to effectively protect sensor, it is to avoid sensor is directly connect with blood vessel wall
The pressure disturbances brought, thus ensure the accuracy measuring.On the other hand, invention also reduces blood pressure measurement seal wire is in assembling
On difficulty.
Above the present invention is described in detail, its object is to allow the personage being familiar with this art will appreciate that this
The content of invention is simultaneously carried out, and can not be limited the scope of the invention with this, all spirit institutes according to the present invention
The equivalence changes made or modification, all should cover within the scope of the present invention.
Claims (10)
1. a kind of Ink vessel transfusing blood pressure measurement seal wire, the proximal tube being connected with one end of described distal tube including distal tube and one end,
Described distal tube includes distal tube one, cylindrical mount and distal tube two, described proximal tube and the distal tube setting gradually
Two are connected, and internal core filaments that described measurement seal wire also includes being arranged in described cylindrical mount, are arranged on described cylinder peace
The conductor wire that pressure transducer in piece installing and two ends are connected with described pressure transducer and proximal tube respectively, described cylinder is installed
Part includes the cylindrical mount body with developing function, described cylindrical mount body have run through described cylindrical mount this
The inner chamber at body both ends it is characterised in that: described cylindrical mount also includes being arranged on described interior intracavity and along described cylinder peace
Longitudinal interlayer of the axial direction setting of piece installing body, described inner chamber is separated into the first chamber independent of each other by described longitudinal interlayer
Room and second chamber, described internal core filaments are located in described first chamber and one end of described internal core filaments extends described first
Chamber is fixedly installed for one with described distal tube, and the other end of described internal core filaments extends described first chamber and sequentially passes through
Described distal tube two and proximal tube and the described other end of described internal core filaments are fixedly installed with described proximal tube, described pressure
Sensor is located at described second chamber and is fixedly installed in described second chamber.
2. Ink vessel transfusing blood pressure measurement seal wire according to claim 1 it is characterised in that: described second chamber is included for holding
Receive described pressure transducer chamber one and for accommodating the chamber two of described conductor wire, described chamber one and described the
One chamber shares described longitudinal interlayer, and described conductor wire is located in described chamber two and one end of described conductor wire and described pressure
Force transducer is connected and the other end passes described chamber two and sequentially passes through described distal tube two and proximal tube and described lead
The described other end of electric wire is connected with described proximal tube.
3. Ink vessel transfusing blood pressure measurement seal wire according to claim 2 it is characterised in that: described pressure transducer include fix
The installation portion that is arranged in described chamber one and be located in described chamber one and be formed at described installation portion one end and
The induction part being provided with sensing chip extending along the axial direction of described cylindrical mount body, described conductor wire and described installation
Portion is connected.
4. intravascular pressure according to claim 3 measurement seal wire it is characterised in that: described induction part is near described far-end
Away from described distal tube one, the one side towards described chamber two of described induction part is defined as pipe one and described installation portion
Top surface, all outer surfaces of described induction part are respectively described top surface, towards the bottom surface of described longitudinal interlayer, towards described far-end
Pipe one and connect the end face of described top surface and bottom surface and be located at described end face two side and connect the side of described top surface and bottom surface,
Described top surface, bottom surface, side, end face all do not contact described cylindrical mount.
5. intravascular pressure according to claim 4 measurement seal wire it is characterised in that: described longitudinal interlayer include with described
The interlayer of the corresponding setting of installation portion one and the interlayer two being correspondingly arranged with described induction part, described interlayer one towards
Described installation portion higher than described interlayer two towards described induction part while make described interlayer one with described
Installation portion contacts and the described bottom surface of described induction part does not contact described interlayer two.
6. intravascular pressure according to claim 4 or 5 measure seal wire it is characterised in that: described induction part described
The cross section of the radial direction of cylindrical mount body is less than the radial direction side in described cylindrical mount body of described installation portion
To cross section make side described in two sides, described top surface all not contact described cylindrical mount.
7. intravascular pressure according to claim 6 measurement seal wire it is characterised in that: the width of described induction part is less than institute
State the width of installation portion, the width of the part of position of the described induction part of correspondence of described chamber two is more than described induction part
Width makes the described top surface of described induction part, side described in two sides all not contact described cylindrical mount.
8. according to claim 4 or 5 intravascular pressure measurement seal wire it is characterised in that: described cylindrical mount body
The position of side described in correspondence two side open up the side opening running through described cylindrical mount body two sidepiece, the size of described side opening
Side described in two sides, described top surface, described bottom surface is made all not to contact described cylinder peace more than the size of side described in either side
Piece installing, the distal interface of described side opening is less than or equal to described induction part with the distance of the far-end end face of described cylindrical mount body
The described end face described end face that makes described induction part with the distance of the far-end end face of described cylindrical mount body do not contact
Described cylindrical mount.
9. intravascular pressure seal wire according to claim 2 it is characterised in that: the cross section of described second chamber be in " convex "
Font makes described second chamber have wider portion and a narrower part, and described chamber one is described wider portion, described chamber
Room two is described narrower part.
10. intravascular pressure seal wire according to claim 1 it is characterised in that: described cylindrical mount body be metal
Part, the material of described longitudinal interlayer is identical with the material of described cylindrical mount body and described longitudinal interlayer and cylindrical mount
This body by integral forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610876601.8A CN106361312A (en) | 2016-10-08 | 2016-10-08 | Guide wire for measuring blood pressure in blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610876601.8A CN106361312A (en) | 2016-10-08 | 2016-10-08 | Guide wire for measuring blood pressure in blood vessel |
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| Publication Number | Publication Date |
|---|---|
| CN106361312A true CN106361312A (en) | 2017-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610876601.8A Pending CN106361312A (en) | 2016-10-08 | 2016-10-08 | Guide wire for measuring blood pressure in blood vessel |
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| Country | Link |
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| CN (1) | CN106361312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674743A (en) * | 2017-03-15 | 2021-04-20 | 深圳北芯生命科技有限公司 | Medical measuring catheter |
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| US20150133800A1 (en) * | 2013-11-14 | 2015-05-14 | Medtronic Vascular Galway | Dual lumen catheter for providing a vascular pressure measurement |
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