CN106667466A - Measuring catheter - Google Patents

Measuring catheter Download PDF

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Publication number
CN106667466A
CN106667466A CN201710088447.2A CN201710088447A CN106667466A CN 106667466 A CN106667466 A CN 106667466A CN 201710088447 A CN201710088447 A CN 201710088447A CN 106667466 A CN106667466 A CN 106667466A
Authority
CN
China
Prior art keywords
mandrel
conduit
measurement conduit
recess
supporting part
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.)
Pending
Application number
CN201710088447.2A
Other languages
Chinese (zh)
Inventor
宋亮
陈丽丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Insight Lifetech Co Ltd
Original Assignee
Shenzhen Insight Lifetech Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Insight Lifetech Co Ltd filed Critical Shenzhen Insight Lifetech Co Ltd
Priority to CN201710088447.2A priority Critical patent/CN106667466A/en
Publication of CN106667466A publication Critical patent/CN106667466A/en
Pending legal-status Critical Current

Links

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
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • 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
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • 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
    • 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
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14539—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring pH
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852—Catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
    • A61B5/6876—Blood vessel
    • 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
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • 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 provides a measuring catheter which comprises a guide wire inner cavity capable of slidably receiving a single medical guide wire, a catheter body in the shape of a strip-shaped tube and a concave portion arranged on the peripheral surface of the catheter body. The concave portion is formed on the peripheral surface of the measuring catheter, so that sensors for measuring physiological parameters can be arranged on the concave portion of the measuring catheter, section height of the measuring catheter carrying the sensors can be reduced, and measuring errors caused by the measuring catheter itself are reduced.

Description

Measurement conduit
The application isOn 06 08th, 2016, Application No.201610404489.8, it is entitledMeasurement Conduit and its manufacture methodDivisional application.
Technical field
The present invention relates to a kind of measurement conduit and its manufacture method.
Background technology
For many blood vessel kind diseases such as coronary heart disease, generally need to be surveyed in lesion region in its diagnosis and therapeutic process Measure some physiological parameters such as blood pressure, oxygen saturation, blood pH etc..At present, for the measurement of above-mentioned parameter is by the way of For example there is measurement conduit.The sensor for detecting above-mentioned physiological parameter is provided with the outer surface of the measurement conduit.Doctor Deng by by the stenotic lesion of the lesion region such as blood vessel in such measurement catheter positioning to human body body measuring, So as to obtain required physiological parameter.
However, such measurement conduit (sometimes referred to as " medical measurement conduit ") is generally cylindrical, if directly will use It is arranged on the outer surface of measurement conduit in the sensor of measurement physiological parameter, because sensor itself has thickness, therefore, Being provided with the depth of section of the measurement conduit after sensor also correspondingly increases.Because such measurement conduit is frequently necessary to enter To at the stenotic lesion of the coronary vasodilator in such as human body body, therefore, sensor is directly arranged on the outer weekly form of measurement conduit The depth of section of conduit can be increased on face, cause such conduit to be likely to produce obstruction work in intravascular when blood vessel is moved With the more measurement error of introducing.In addition, conduit local size is excessive, the difficulty into lesion region can be increased, affect operation Success rate.
The content of the invention
The present invention is completed in view of above-mentioned current condition, its object is to provide a kind of measurement conduit and its manufacture Method so that the measurement conduit of manufacture can be easy to the installation of sensor to fix, while substantially reducing the conduit of sensor site Depth of section, reduces the measurement error to physiological parameter.
For this purpose, an aspect of of the present present invention provides a kind of measurement conduit, it is characterised in that：Including：Catheter main body, it is in long The tubulose of bar shaped；And recess, it is arranged on the outer surface of the catheter main body.
In measurement conduit involved in the present invention, because the outer surface in measurement conduit is formed with recess, therefore, can So that sensor of measurement physiological parameter etc. is arranged on the recess of the measurement conduit, thus, it is possible to reduce sensor is equipped with The depth of section of measurement conduit, so as to reduce because measuring the measurement error caused by conduit itself.
In addition, in measurement conduit involved in the present invention, alternatively, the bottom surface of the recess is tabular surface.Thus, energy The obtained measurement conduit bottom surface with bottom surface for the recess of tabular surface is enough set more easily to carry sensor.
In addition, in measurement conduit involved in the present invention, alternatively, also including the sensing being arranged on the recess Device.Various physiological parameters are measured using the sensor being arranged on recess thereby, it is possible to convenient.
Furthermore, another aspect provides a kind of manufacture method of measurement conduit, it is characterised in that：Including：It is accurate Standby tool and plastic bushing；The plastic bushing is sleeved on the tool；Thermoplastic processing is carried out to the plastic bushing；And And remove the tool from the plastic bushing, it is described to control so as to be formed on outer surface the measurement conduit with recess Tool possesses：First mandrel, is formed with the first supporting part on the side surface of its one end；And second mandrel, the side surface of its one end On be formed with the second supporting part, first mandrel is separable with second mandrel, and described the one of first mandrel End is docked with described one end of second mandrel so that first supporting part and second supporting part collectively form for Recess.
In the manufacture method of measurement conduit involved in the present invention, the first mandrel is separable with the second mandrel, and the First supporting part of one mandrel and the second supporting part of the second mandrel are collectively formed as recess, it is possible thereby to make obtained measurement Conduit have can be used for carry sensor recess such that it is able to reduction be equipped with sensor measurement conduit depth of section.
In addition, in the manufacture method of measurement conduit involved in the present invention, alternatively, the bottom surface of the recess is flat Face.Thereby, it is possible to make the obtained measurement conduit bottom surface with bottom surface for the recess of tabular surface more easily carry sensing Device.
In addition, in the manufacture method of measurement conduit involved in the present invention, alternatively, at least bag of first mandrel The part including at least second supporting part of the part containing first supporting part and second mandrel is with described first The outer peripheral face of mandrel is docked with the continuous mode of outer peripheral face of second mandrel.In this case, the first carrying can be made Portion docks with being connected with the second supporting part, is conducive to forming the recess of given shape in manufacture measurement conduit.
In addition, in the manufacture method of measurement conduit involved in the present invention, alternatively, in second mandrel surface With second supporting part be spaced predetermined distance position, be provided with location division.Thus, can survey in manufacture measurement conduit Predetermined distance on the outer surface of amount conduit forms recess.
In addition, in the manufacture method of measurement conduit involved in the present invention, alternatively, the location division is along described The projection that the outer surface of the second mandrel is arranged.In this case, can easily by measurement catheter positioning to be produced In the position of regulation.
In addition, in the manufacture method of measurement conduit involved in the present invention, alternatively, being formed on first mandrel There is first control section, on second mandrel second control section is formed with, by fixing the first control section and institute respectively Second control section is stated, first supporting part is continuously docked with second supporting part.
In addition, in the manufacture method of measurement conduit involved in the present invention, alternatively, the first control section includes first Stationary plane, the second control section includes the second stationary plane, and first stationary plane is identical with the direction of second stationary plane. Thereby, it is possible to be easy to docking and positioning for the first mandrel and the second mandrel.
In addition, in the manufacture method of measurement conduit involved in the present invention, alternatively, the position of the location division can be along The axis direction adjustment of second mandrel.In this case, can adjust fixed according in the different needs for arranging recess The position in position portion, increases the suitability of the manufacture method of measurement conduit involved in the present invention.
Additionally, in the manufacture method of measurement conduit involved in the present invention, alternatively, in first mandrel comprising institute The end face for stating the first supporting part is formed with convex portion, is formed with the end face comprising second supporting part of second mandrel recessed Portion, the convex portion cooperates with recess.Thereby, it is possible to making the first supporting part convenient with the second supporting part and matching somebody with somebody securely Close.
According to measurement conduit provided by the present invention and its manufacture method, have can measurement conduit and can be used for carrying Sensor recess such that it is able to which reduction is equipped with the depth of section of the measurement conduit of sensor.
Description of the drawings
Fig. 1 shows the structural representation of the measurement conduit involved by present embodiment；
Fig. 2 shows the structural representation of the measurement conduit for being equipped with sensor involved by present embodiment；
Fig. 3 shows the stereochemical structure of the tool of the manufacture measurement conduit involved by embodiments of the present invention and illustrates Figure；
Fig. 4 shows another stereochemical structure of the tool of the manufacture measurement conduit involved by embodiments of the present invention and shows It is intended to；
Fig. 5 shows first mandrel and second of the tool of the manufacture measurement conduit involved by embodiments of the present invention Structural representation of the mandrel in released state；
Fig. 6 shows the schematic cross-section of the length direction of the tool along the manufacture measurement conduit shown in Fig. 3；
Fig. 7 is showed and illustrated using the manufacture method of the tool manufacture measurement conduit involved by embodiments of the present invention Figure；
Fig. 8 shows the process schematic using the tool manufacture measurement conduit of manufacture measurement conduit；
Fig. 9 shows the process schematic using the tool manufacture measurement conduit of manufacture measurement conduit；
Figure 10 is the stereochemical structure of the tool for illustrating the manufacture measurement conduit involved by another embodiment of the invention Schematic diagram.
Symbol description：
The tool of 1 ... manufacture measurement conduit, 2 ... measurement conduits, 10 ... first mandrels, 12 ... first control sections, 12a ... the One stationary plane, 14 ... first supporting parts, the tabular surfaces of 14a ... first, 20 ... second mandrels, 22 ... second control sections, 22a ... second Stationary plane, 24 ... second supporting parts, the tabular surfaces of 24a ... second, 30 ... recesses, 32 ... tabular surfaces, 40 ... location divisions.
Specific embodiment
Hereinafter, refer to the attached drawing, explains the preferred embodiment of the present invention.In the following description, for identical Part give identical symbol, the repetitive description thereof will be omitted.In addition, accompanying drawing is simply schematically schemed, part chi each other Very little ratio or the shape of part etc. can be different from actual.
In the present embodiment, measure conduit 2 for example can use to human lesion region according to the function of sensor The purposes of the various parameters such as measurement blood pressure, oxygen saturation, blood pH.Doctors etc. by such by measuring catheter positioning the pure man Measure at the stenotic lesion of such as blood vessel of the lesion region in body body, so as to obtain required physiological parameter.Especially, Measurement conduit 2 involved by present embodiment is applied to measurement blood pressure, oxygen saturation, blood PH in such as coronary vasodilator in vivo The various physiological parameters such as value.
Measurement conduit 2 involved in the present invention is referred to as medical measurement conduit, or is referred to as blood vessel Interior pressure measurement conduits.
Fig. 1 shows the structural representation of the measurement conduit 2 involved by present embodiment.Fig. 2 shows this enforcement The structural representation of the measurement conduit 2 for being equipped with sensor involved by mode.In fig. 1 and 2, schematically show only Measurement conduit 2, measuring the length of conduit 2 can according to circumstances extend or shorten.
As depicted in figs. 1 and 2, measuring conduit 2 includes catheter main body 2a and recess 2b.In the present embodiment, conduit master Body 2a elongated tubulose.In addition, recess 2b is arranged on the outer surface of catheter main body 2a.The material of catheter main body 2a does not have Especially limit, for example, can be made up of thermoplastic medical plastic sleeve pipe.In addition, the sleeve pipe for constituting measurement conduit 2 can also be by Plastic bushing and the thermoplastic pipe being coated on outside plastic bushing are constituted.
In addition, the bottom surface of recess 2b can be tabular surface.It is the recessed of tabular surface with bottom surface thereby, it is possible to make obtained More easily carry sensor 3 in the measurement conduit bottom surface in portion.In addition, the survey being equipped with after sensor can further be reduced The depth of section of amount conduit 2, so as to reduce because measuring the measurement error that conduit 2 causes itself.
Additionally, measurement conduit 2 can also include the sensor 3 being arranged on recess 2a.Thereby, it is possible to convenient using setting Sensor 3 on recess 2b is measuring various physiological parameters.Sensor 3 for example can be pressure transducer.Such pressure Sensor for example can be used to measure blood pressure.The mode that sensor 3 is fixed on recess 2a is not particularly limited, for example, can lead to The mode for crossing welding is fixed on sensor 3 on recess 2a, it is also possible to sensor 3 is fixed on into recess 2a by way of bonding On.
In addition, in the present embodiment, as shown in Fig. 2 the physiological parameter signals obtained by sensor 3 can by with biography Sensor 3 connects the processing equipment (not shown) that the transmission line 3b of such as electrical connection passes to human external.Via the place of human external Reason equipment can obtain such as blood flow reserve parameter (FFR), and blood flow reserve parameter can be used for instructing for example whether narrow in pathological changes Place support in narrow place.In order to ensure measuring the safety in use of conduit 2, for example, can also pass through tubing etc. by transmission line 3b is coated.Thus, can both increase the supporting role of transmission line 3b, it may also be ensured that the insulation of transmission line 3b.
Alternatively, it is also possible to cover by way of being exposed to the outer tube with the detection position of sensor 3 outer tube (not shown) Sensor 3.Thereby, it is possible to protect sensor 3, and reduce it is unnecessary between the measurement object of sensor 3 and measurement conduit 2 Contact.
As described above, in the measurement conduit 2 involved by present embodiment, due to the outer surface shape in measurement conduit 2 Into there is recess 2b, therefore, it can that the sensor 3 for for example measuring various physiological parameters is arranged on the recess 2b of the measurement conduit 2 On, the depth of section thus, it is possible to reduce the measurement conduit 2 for being equipped with sensor 3 itself causes so as to reduce because measuring conduit 2 In intravascular wait measurement error.
Hereinafter, the method for the measurement conduit 2 with reference to involved by Fig. 3 to Fig. 5 describes manufacture present embodiment.Fig. 3 shows The dimensional structure diagram of the tool 1 of the manufacture measurement conduit involved by embodiments of the present invention.Fig. 4 shows the present invention Embodiment involved by manufacture measurement conduit tool 1 another dimensional structure diagram.Fig. 5 shows the present invention's Structure of first mandrel 10 and the second mandrel 20 of the tool 1 of the manufacture measurement conduit involved by embodiment in released state Schematic diagram.
As shown in figure 3, the measurement conduit 2 involved by present embodiment can be manufactured by the tool 1 of manufacture measurement conduit. Using the tool 1 involved by present embodiment, can be formed on the ad-hoc location of measurement conduit 2 to be produced for example for Carry the recess 2b of sensor 3 such that it is able to which reduction is equipped with the depth of section of the measurement conduit 2 of sensor 3.
Tool 1 involved by present embodiment includes the first mandrel 10 and the second mandrel 20.First mandrel 10 and the second core The mandrel that axle 20 can be formed a whole by the docking of respective axial end.In the present embodiment, the He of the first mandrel 10 The constituent material of the second mandrel 20 is not particularly limited, and can be the hard metals such as alloy, steel, or other heat stability Good hard macromolecular material.In addition, the first mandrel 10 and the second mandrel 20 can be to be made up of, in such case magnetic material Under, the first mandrel 10 can be made to coordinate by magnetic with the second mandrel 20.In addition, the first mandrel 10 and the second mandrel 20 can be with It is made up of identical material, it is also possible to be made up of different materials.Additionally, the first mandrel 10 and the second mandrel 20 can be hollow Body, or solid.
As shown in Figure 3 and Figure 4, the first mandrel 10 is in strip.On the side surface of one end of the first mandrel 10, it is formed with First supporting part 14 (referring to Fig. 5).First control section 12 (being described later on) is formed with the other end of the first mandrel 10.
In addition, as shown in Figure 3 and Figure 4, the second mandrel 20 is also in strip.In the side surface of one end of the second mandrel 20 On, it is formed with the second supporting part 24.Second control section 22 (being described later on) is formed with the other end of the second mandrel 20.
As described above, the first mandrel 10 is formed with the first supporting part 14, the second mandrel 20 is formed with the second supporting part 24.By This, has one end of the first supporting part 14 to have the second supporting part 24 with the formation of the second mandrel 20 by the formation of the first mandrel 10 One end is docked, so that the first supporting part 14 and the second supporting part 24 collectively form recess 30.That is, recess 30 is carried by first The supporting part 24 of portion 14 and second is constituted.
In addition, the part including at least the first supporting part 14 of the first mandrel 10 with the second mandrel 20 including at least second Docked with the continuous mode of outer peripheral face of the second mandrel 20 with the outer peripheral face of the first mandrel 10 part of supporting part 24.By so Mode, the first supporting part 14 of the first mandrel 10 smoothly dock with the second supporting part 24 of the second mandrel 20 and accurately calmly Position.
In the present embodiment, the first mandrel 10 is separable with the second mandrel 20.Namely first mandrel 10 can be according to need To fit together with the second mandrel 20, it is also possible to separate with the second mandrel 20 as needed.In this case, due to first Mandrel 10 is separable with the second mandrel 20, therefore, the measurement (ginseng of conduit 2 is being made using the tool 1 involved by present embodiment See Fig. 9) when, can be formed on the assigned position of the circumferential lateral surface of measurement conduit 2 after recess 2b, by by the first mandrel 10 Separate with the second mandrel 20 and the measurement conduit 2 that side has recess 2b is just obtained.
Fig. 6 shows the schematic cross-section of the length direction of the tool along the manufacture measurement conduit 2 shown in Fig. 3.
In the present embodiment, as shown in fig. 6, the bottom surface of recess 30 is tabular surface.In such a case, it is possible to by controlling Have on the surface of 1 obtained measurement conduit 2 and form recess of the bottom surface for tabular surface, it is possible thereby to the sensing that physiological parameter will be measured Device etc. is conveniently mounted to the position of the tabular surface, effectively reduces the depth of section of the measurement conduit being mounted with after sensor.
In the present embodiment, the first supporting part 14 can be arranged along the axis direction of the first mandrel 10.That is, first The length direction of supporting part 14 is parallel with the axis direction of the first mandrel 10.First supporting part 14 includes the first tabular surface 14a (ginsengs See Fig. 6).
In addition, the second supporting part 24 can be arranged along the axis direction of the second mandrel 20.That is, the second supporting part 24 Length direction is parallel with the axis direction of the second mandrel 20.Second supporting part 24 includes the second tabular surface 24a (referring to Fig. 6).
In the present embodiment, arranged along the axis direction of the first mandrel 10 by making the first supporting part 14, and made Second supporting part 24 is arranged along the axis direction of the second mandrel 20, thus, by the first tabular surface 14a and the second tabular surface 24a The tabular surface 32 (being described later on) of composition axis direction cloth common after integrally docking with the second mandrel 20 along the first mandrel 10 Put.
As described above, tabular surface 32 by the first supporting part 14 the first tabular surface 14a and the second supporting part 24 it is second flat Smooth face 24a is constituted.That is, a part (such as the first tabular surface 14a) for tabular surface 32 is arranged on the first mandrel 10, tabular surface 32 Another part (such as the second tabular surface 24a) be arranged on the second mandrel 20.
Specifically, tabular surface 32 can be respectively arranged at the first mandrel 10 and the second core by the certain proportion of its gross area On axle 20.For example, in certain embodiments, 1/3 (such as the first tabular surface 14a) of the surface area of tabular surface 32 is arranged on first On mandrel, 2/3 (such as the second tabular surface 24a) of the surface area of tabular surface 32 is arranged on the second mandrel.In addition, in some realities In applying example, 1/2 (such as the first tabular surface 14a) of the surface area of tabular surface 32 is arranged on the first mandrel 10, tabular surface 32 1/2 (such as the second tabular surface 24a) of surface area is arranged on the second mandrel 20.
In addition, in some embodiments, it is also possible to be tabular surface 32 all surfaces product be arranged on the first mandrel 10, And the part for only merely comprising a side of recess is arranged on the second mandrel 20.In this case, the first tabular surface 14a into For tabular surface 32.Additionally, in some embodiments, it is also possible to be tabular surface 32 all surfaces product be arranged in the second mandrel 20 On, the part for only merely comprising a side of recess is arranged on the first mandrel 10.In this case, the second tabular surface 24a Become tabular surface 32.Additionally, distribution of the tabular surface 32 on the first mandrel 10 and the second mandrel 20 can also be set in other ratios Put, be not described in detail here.
In the present embodiment, the end face of the first mandrel 10 and the second mandrel 20 can respectively be perpendicular to respective axis side To plane.In addition, the end face of the first mandrel 10 and the second mandrel 20 can also be angled with respective axis direction Plane.
As shown in figure 3, in the present embodiment, tabular surface 32 reveals on the side surface of the first mandrel 10 and the second mandrel 20 Go out.Thus, during manufacture measurement conduit, it is flat that bottom surface easily can be formed on the outer surface of measurement conduit The recess in face.
Additionally, being spaced the position of predetermined distance with the second supporting part 24 on the surface of the second mandrel 20, location division is provided with 40.During manufacture measurement conduit 2, by location division 40, can be to measuring conduit 2 along the axis side of the second mandrel 20 To being positioned.Thus, it is possible to easily arrange recess in the assigned position of the measurement outer surface of conduit 2.
In certain embodiments, location division 40 can be label symbol.Such as label symbol can be graduation mark, arrow etc. Mark.In this case, in manufacture measurement conduit, the survey to be manufactured can be judged for example, by naked eyes or microscope Whether the end of amount conduit is reached at label symbol.
In addition, in certain embodiments, location division 40 can also be along the prominent of the outer surface setting of the second mandrel 20 Rise.Because location division 40 is relative to the side surface projection of the second mandrel 20, therefore, in manufacture measurement conduit 2, can be by making Measurement conduit supports location division 40 to realize positioning.In addition, the projection can be formed along the outer surface of the second mandrel 20 The projection being formed continuously, it is also possible to which the outer surface for being formed along the second mandrel 20 is spaced several to be formed projection.Additionally, Projection can adopt shaft shoulder structure.Furthermore, it is also possible to ring tankage is further set in the shaft shoulder structure as projection, so that fixed Position is more firm.
Additionally, the position of location division 40 can adjust along the axis direction of the second mandrel 20.That is, location division 40 can be set It is set to moveable structure, i.e. as needed, location division 40 can move along the axis direction of the second mandrel 20, so as to adjust Position of the whole location division 40 on the second mandrel 20.Supravasal forming position is being measured thereby, it is possible to adjust recess.
In the present embodiment, location division 40 can also be arranged on the first mandrel 10.In this case, location division 40 Equally also can play a part of to be positioned to measuring conduit 2.
As described above, being formed with first control section 12 on the first mandrel 10, it is formed with the second mandrel 20 second Hold portion 22 (referring to Fig. 3 and Fig. 4).By adjusting and fixed first control section 12 and second control section 22, can be to the first mandrel 10 and second mandrel 20 be fixed and position.
Specifically, by adjusting and fixed first control section 12, the first supporting part 14 can be made relative to the first mandrel 10 axis is in peripheral direction towards specific orientation.By adjusting and fixed second control section 22, the second carrying can be made Portion 24 relative to the second mandrel 20 axis in peripheral direction towards and the identical orientation of the first supporting part 14.Thus, in profit When measuring conduit with the tool manufacture involved by present embodiment, the docking operation between the first mandrel 10 and the second mandrel 20 In, specific orientation is respectively facing by the first supporting part 14 and the second supporting part 24, first on the first mandrel 10 can be made Supporting part 14 is smoothly docked with the second supporting part 24 on the second mandrel 20, so as to constitute continuous tabular surface 32.
In the present embodiment, first control section 12 is not particularly limited with the shape of second control section 22.For example, such as Fig. 3 With shown in Fig. 4, first control section 12 for example substantially can be in semi-cylindrical with identical with the shape of second control section 22.
As shown in figure 5, first control section 12 is formed in the one end contrary with the first supporting part 14 on the first mandrel 10. In some embodiments, first control section 12 can include the first stationary plane 12a.Additionally, the first stationary plane 12a can be with tabular surface The direction (normal direction) of 32 parts on the first mandrel 10 is identical, i.e. the first stationary plane 12a can be with the first supporting part The direction (normal direction) of the first tabular surface 14a on 14 is identical.
Second control section 22 is formed in the one end contrary with the second supporting part 24 on the second mandrel 20.In some embodiments In, second control section 22 includes the second stationary plane 22a.Second stationary plane 22a can be located on the second mandrel 20 with tabular surface 32 Part direction (normal direction) it is identical, i.e., the court of the second tabular surface 24a on the second stationary plane 22a and the second supporting part 24 It is identical to (normal direction).
By holding first control section 12 and second control section 22 and adjusting the first mandrel 10 and the second mandrel 20, first is made First tabular surface 14a of supporting part 14 and the second tabular surface 24a of the second supporting part 24 have identical direction.
Although in fig. 6 it is shown that the first tabular surface 14a of the first supporting part 14 is fixed with the first of first control section 12 The direction (normal direction) of face 12a is identical, but, the first tabular surface 14a of the first supporting part 14 and the of the second supporting part 24 The direction of two tabular surface 24a can also be different.For example, in certain embodiments, the first tabular surface 14a of the first supporting part 14 45° angle can be differed towards (normal direction) with the direction (normal direction) of the first stationary plane 12a of first control section 12.One In a little embodiments, the direction (normal direction) of the first tabular surface 14a of the first supporting part 14 is consolidated with the first of first control section 12 Determining the direction (normal direction) of face 12a can differ 90 ° of angles.
Although in addition, figure 6 illustrates the second tabular surface 24a of the second supporting part 24 and the second of second control section 22 The direction (normal direction) of stationary plane 22a is identical, but the second tabular surface 24a of the second supporting part 24 and second control section 22 The direction of the second stationary plane 22a can also be different.For example, in certain embodiments, the second tabular surface 24a of the second supporting part 24 Direction (normal direction) can differ 45° angle with the direction (normal direction) of the second stationary plane 22a of second control section 22. In some embodiments, the second tabular surface 24a of the second supporting part 24 and the second stationary plane 22a (normal sides of second control section 22 To) 90 ° of angles can be differed.
Additionally, first control section 12 can also adopt different structures from second control section 22.As long as ensureing that first holds Portion 12 and second control section 22 smoothly can be held or operation instrument holding by manual.By holding the first holding respectively Portion 12 and second control section 22 such that it is able to adjust and fix the first mandrel 10 and the second mandrel 20 respectively.
In the present embodiment, the first mandrel 10 can be the roughly the same cylinder of diameter with the second mandrel 20.Additionally, When using the manufacture measurement conduit 2 of tool 1 involved by present embodiment, the remotely located portion 40 on the first mandrel 10 and it is not required to Being nested into the part of measurement conduit 2 can also adopt the shape for being different from cylinder.Heat is carried out for example, by measuring conduit 2 Contracting technique so as to form the recess with tabular surface at the position specified on measurement conduit 2 surface.
Hereinafter, the manufacture measurement conduit 2 of tool 1 with reference to involved by Fig. 7 to Fig. 9 is briefly described using present embodiment Process.
Fig. 7 is showed and shown using the manufacture method of the tool manufacture measurement conduit 2 involved by embodiments of the present invention It is intended to.Fig. 8 shows the process schematic using the manufacture measurement conduit of tool 1 of manufacture measurement conduit 2.Fig. 9 is showed The process schematic of measurement conduit 2 is manufactured using tool 1.
With reference to Fig. 7, first, prepare the first mandrel 10 and the second mandrel 20 involved by present embodiment and constitute to survey The sleeve pipe (step S10) of amount conduit 2, that is, prepare tool and plastic bushing.First mandrel 10 and the second mandrel 20 can be in length The column of strip.The sleeve pipe for constituting measurement conduit 2 can be thermoplastic plastic bushing, and it is long that it can take regulation as needed Degree.In the present embodiment, the diameter of plastic bushing is slightly larger than the external diameter of the first mandrel 10 and the external diameter of the second mandrel 20, and The external diameter of location division 40 is slightly less than, so as to plastic bushing can be conveniently set on the first mandrel 10 and the second mandrel 20, and is held Easily positioned by location division 40.
Then, second control section 22 is held by craft or operation instrument, by adjusting and fixed second control section 22, from And fix the second mandrel 20, then a part for plastic bushing is enclosed within the second mandrel 20.Specifically, plastic bushing is made It is nested into one end comprising the second supporting part 24 of the second mandrel 20 and advances along the second mandrel 20, until plastic bushing is reached Location division 40, for example, make plastic bushing advance along the second mandrel 20 until being stopped by location division 40.
Then, first control section 12 is held by craft or operation instrument, by adjusting and fixed first control section 12, , towards plastic bushing, and it is enclosed within a part for plastic bushing so as to by one end comprising the first supporting part 14 of the first mandrel 10 On first mandrel 10.
Adjust by manual setting or by operation instrument, make the first mandrel 10 and the second mandrel 20 in plastic bushing Abut and be aligned (docking), so that the second tabular surface 24a of the first tabular surface 14a of the first mandrel 10 and the second mandrel 20 With identical direction (normal direction).That is, the first supporting part 14 of the first mandrel 10 and the second supporting part of the second mandrel 20 24 common recesses 30, and the first tabular surface 14a of the first supporting part 14 is common with the second tabular surface 24a of the second supporting part 24 Constitute the tabular surface 32 of recess 30.
Then, plastic bushing is enclosed within the first mandrel 10 and the second mandrel 20.That is, plastic bushing is enclosed within by the He of the first mandrel 10 On the tool 1 of the composition of the second mandrel 20 (referring to Fig. 8) (step S20).
Now, thermoplastic processing is carried out to plastic bushing.Specifically, plastics are made by thermoplastic processing (such as pyrocondensation technique) Sleeve pipe thermoplastic shaping on the tool 1 being made up of the first mandrel 10 and the second mandrel 20, thus in the assigned position of plastic bushing It is upper to form the recess (referring to Fig. 9) (step S30) with tabular surface.
Then, the first mandrel 10 and the second mandrel 20 are removed respectively from the two ends of plastic bushing, will tool 1 from plastics Sleeve pipe is removed (referring to Fig. 9).Specifically, the first mandrel 10 is removed along direction D from plastic bushing, by the edge of the second mandrel 20 The direction D ' contrary with direction D and remove (step S40) from plastic bushing.It is by the first supporting part due to what is formed on tool 1 14 and the second supporting part 24 constitute recess 30, therefore, the first mandrel 10 and the second mandrel 20 can easily from plastic bushing Two ends remove.
Thus, obtain being formed with measurement conduit 2 (referring to Fig. 9) (step of recess 2b in the outer surface of catheter main body 2a S50)。
It should be understood that above-mentioned steps are as just the reference in actual mechanical process, it is capable of achieving to utilize according to above-mentioned steps Tool involved by present embodiment manufacturing the process of measurement conduit, but can also according to practical situation combining step or Delete certain or some steps.
In certain embodiments, the measurement conduit 2 by manufactured by tool 1 goes for the insertion type of cardiovascular disease and examines Disconnected or therapeutic process.For example, above-mentioned measurement conduit 2 can serve as measure blood flow reserve fraction (FFR) value used it is remote End sleeve pipe, wherein, the distal cannula has the guidewire lumen for slidably receiving single medical guiding wire, in distal cannula appearance Carry the pressure transducer of measurement blood pressure parameter in face (i.e. the recess with tabular surface).
In specific use, by receiving the measurement conduit 2 as distal cannula and sliding along medical guiding wire, far End sleeve pipe and such as pressure transducer of sensor 3 that is arranged in distal cannula can be sent in patient body's body (such as vein, Tremulous pulse) precalculated position.Here, distal cannula is generally connected with proximal part, and proximal part is connected to the doctor of human vitronectin Treatment equipment such as processing equipment.The blood pressure information acquired in pressure transducer in distal cannula can be transmitted along proximal part To outside processing equipment.
Although being illustrated to the present invention above in association with drawings and embodiments, it is not intended to limit The present invention, it will be appreciated that to those skilled in the art, without departing from the spirit and scope of the present invention, can To be deformed to the present invention and be changed, these deformations and change are each fallen within the scope of the claimed protection of the present invention.
For example, in the above-described embodiment, the first mandrel 10 is not particularly limited with the second docking for mandrel 20, Ke Yishi Axial end is docked.In addition, in certain embodiments, as shown in Figure 10, can be with the end face of the first mandrel 10 and the second mandrel 20 The raised and recess that can coordinate, or other primary-secondary type attachment structures are respectively provided with, are thus easy to the first mandrel 10 and second The docking of mandrel 20 and positioning.
In addition, in certain embodiments, it is larger in pipe thickness according to the pipe thickness of the measurement conduit of required making When, recess can also have step-like bottom surface.

Claims (6)

  1. It is 1. a kind of to measure conduit, it is characterised in that：
    It has the guidewire lumen for slidably receiving single medical guiding wire,
    The measurement conduit includes：
    Catheter main body, its elongated tubulose；And
    Recess, it is arranged on the outer surface of the catheter main body.
  2. It is 2. as claimed in claim 1 to measure conduit, it is characterised in that：
    The bottom surface of the recess is tabular surface.
  3. It is 3. as claimed in claim 1 to measure conduit, it is characterised in that：
    Also include the sensor being arranged on the recess.
  4. 4. a kind of measurement conduit for measuring blood flow reserve fraction, it is characterised in that：
    Including：
    Catheter main body, its elongated tubulose, and with slidably receiving the guidewire lumen of single medical guiding wire；And
    Recess, it is arranged on the outer surface of the catheter main body.
  5. It is 5. as claimed in claim 4 to measure conduit, it is characterised in that：
    The bottom surface of the recess is tabular surface.
  6. It is 6. as claimed in claim 4 to measure conduit, it is characterised in that：
    Also include the pressure transducer being arranged on the recess.
CN201710088447.2A 2016-06-08 2016-06-08 Measuring catheter Pending CN106667466A (en)

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CN201610404489.8A CN105962917B (en) 2016-06-08 2016-06-08 Measuring conduit manufacturing method
CN201710088447.2A CN106667466A (en) 2016-06-08 2016-06-08 Measuring catheter

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Citations (2)

* Cited by examiner, † Cited by third party
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CN1879555A (en) * 2005-03-15 2006-12-20 科德曼及舒特莱夫公司 Pressure sensing devices
CN103519795A (en) * 2013-10-22 2014-01-22 苏州亘科医疗科技有限公司 Measuring catheter

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JPH01202417A (en) * 1988-02-08 1989-08-15 Sato Kasei Kogyosho:Kk Manufacture of blood-collecting pipe
US5250066A (en) * 1990-03-19 1993-10-05 Becton Dickinson And Company Plastic pointed articles and method for their preparation
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US6579582B1 (en) * 1997-10-10 2003-06-17 Vision Sciences Inc. Apparatus and method for forming complex-shaped components in a heated polymeric film
CH699338B1 (en) * 2008-08-06 2012-01-13 Carag Ag Device for measuring the blood flow in a body tissue.
US8465686B2 (en) * 2008-12-19 2013-06-18 Volcano Corporation Method of manufacturing a rotational intravascular ultrasound probe
CN103991210B (en) * 2013-02-19 2016-12-28 上海微创医疗器械（集团）有限公司 A kind of form the method for spiral layers inside conduit
CN104367324B (en) * 2013-08-16 2016-12-28 上海微创电生理医疗科技有限公司 Pressure sensor device and manufacture method, mould and catheter

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1879555A (en) * 2005-03-15 2006-12-20 科德曼及舒特莱夫公司 Pressure sensing devices
CN103519795A (en) * 2013-10-22 2014-01-22 苏州亘科医疗科技有限公司 Measuring catheter

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