CN103041495B - Endovascular interventional catheter tactile probe - Google Patents
Endovascular interventional catheter tactile probe Download PDFInfo
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- CN103041495B CN103041495B CN201110308673.XA CN201110308673A CN103041495B CN 103041495 B CN103041495 B CN 103041495B CN 201110308673 A CN201110308673 A CN 201110308673A CN 103041495 B CN103041495 B CN 103041495B
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- electrode
- sense
- research
- touch probe
- intravascular catheterization
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- 238000011160 research Methods 0.000 claims description 27
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- 229920001971 elastomer Polymers 0.000 claims description 15
- 239000000806 elastomer Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 210000004204 blood vessel Anatomy 0.000 description 11
- 230000005674 electromagnetic induction Effects 0.000 description 5
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
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Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses an endovascular interventional catheter tactile probe which comprises a main pipe, a contact head, a first electrode and a plurality of second electrodes. The contact head is arranged at one end of the main pipe, and the other end of the main pipe is used for an interventional catheter to be placed on. The first electrode is located in the main pipe, electrically connected onto the contact head and connected onto an input lead to obtain an electric signal. The plurality of second electrodes are insulated from each other, distributed in the main pipe and respectively connected onto output leads. When the contact head is not contacted with any obstacle, the first electrode is not connected with any second electrode, and no signals are generated on the output leads of the second electrodes. When the contact head is contacted with an obstacle, the first electrode is contacted with at least one second electrode arranged in the main pipe under the effect of the contact head, and the electric signal on the first electrode is output by the output lead of at least one corresponding second electrode. The endovascular interventional catheter tactile probe can accurately distinguish which position contacts the obstacle.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of Research of Intravascular Catheterization sense of touch probe.
Background technology
In blood vessel, the development of interventional medicine is the quantum leap in physianthropy history, but the interior insertion that gets involved guiding catheter of blood vessel is at present all feel and the experience blindmate with operator, and the thing of injured blood vessel inwall often occurs.What is more, understands bursting blood vessel, causes the malpractice of massive hemorrhage.For this reason, develop a kind of interposing catheter that can apply to the clinical function of feeling to avoid injured blood vessel inwall to become the urgent need of this area.
Chinese utility model patent CN201558168U discloses a kind of sense of touch probe being applied on Research of Intravascular Catheterization; as shown in Figure 1, this probe comprises Magnet 1, electromagnetic induction sensor 2, provides elastomeric objects 3, outer protective film 4 and the mother of Magnet resilience force to manage 5.Wherein the mother of both ends open manages one end of 5 and is placed in the top of interposing catheter, built-in electromagnetic inductive transducer 2, and other end opening part is settled Magnet 1.In the time protruding from the Magnet 1 of female pipe one end and encounter barrier, the major part of Magnet is even all compressed in female pipe 5, even both are close to the gap smaller of electromagnetic induction sensor 2, at this moment the magnetic flux quantitative change that electromagnetic induction sensor 2 receives is large, cause its output voltage respective change, accept and process to the processor of rear end by wire transmission.After barrier disappears, the elastic force providing due to elastomeric objects 3 pops into position Magnet 1, and also phase strain is large with the gap of electromagnetic induction sensor 2, and the magnetic flux that electromagnetic induction sensor 2 is accepted diminishes, and its output voltage is corresponding changing again.Outer protective film 4 is for isolated this sense of touch contacting of all parts and extraneous blood of popping one's head in.
Adopt above-mentioned sense of touch probe can solve interposing catheter friction in the interior intervene operation of blood vessel and injure the even problem of bursting blood vessel, but no matter this sense of touch probe touches blood vessel wall from which kind of angle, can only feed back a signal, namely it can perceive and touch, than going a step further before former blindmate, but be touching of which orientation because can not distinguishing, increased control system or operator and take the difficulty of avoiding action.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Research of Intravascular Catheterization sense of touch probe that can pick out which orientation and touch barrier.
For solving the problems of the technologies described above, the invention provides a kind of Research of Intravascular Catheterization sense of touch probe, comprising: female pipe; Touch head, be arranged at one end of female pipe, the other end of described female pipe is used for arranging an interposing catheter; The first electrode, is positioned at described female pipe inner, and elasticity touches head described in being connected to, and described the first electrode is connected to an input lead to obtain a signal of telecommunication; Multiple the second electrodes, mutually insulated is also distributed in described female pipe, and each described the second electrode connects respectively an output lead; When touching head while not touching any barrier, described the first electrode not with any the second electrode contact, on the output lead of described the second electrode, do not produce signal; When touching head while touching barrier, the first electrode under the active force that touches head with female pipe at least one second electrode contact, make the output lead output via corresponding at least one the second electrode of the described signal of telecommunication on the first electrode.
According to a preferred embodiment of the present invention, the outer seal protection film that is provided with of described Research of Intravascular Catheterization sense of touch probe.
According to a preferred embodiment of the present invention, described female pipe is insulant.
According to a preferred embodiment of the present invention, described the first electrode and the second electrode surface plating low resistivity metal.
According to a preferred embodiment of the present invention, described the first electrode is spring, and described spring is arranged on a spring base; Described spring base is connected with a described elasticity of touching by an elastomer, and described elastomer is arranged on the opening part of female pipe one end; Described elastomer is macromolecular material or spring material.
According to a preferred embodiment of the present invention, described multiple the second electrodes are evenly distributed on each orientation place in female pipe.
Further, described multiple the second electrode comprises that the side-wall electrode array being arranged on female inside pipe wall and the contact that just crashing are arranged on the bottom electrode in female pipe; Between described side-wall electrode array and bottom electrode, be provided with insulating barrier; Described side-wall electrode array is that petal-shaped is arranged and comprises and be no less than four side-wall electrodes; Described bottom electrode is a disk.
According to a preferred embodiment of the present invention, the described head that touches is disk umbrella foremost.
The present invention who forms by technique scheme, has advantages of as follows:
One, this covering device is contained in to Research of Intravascular Catheterization head, by manage interior multiple orientation place mother, the second electrode is set, when Research of Intravascular Catheterization passes in and out in blood vessel, while having run into obstacle, the first electrode and at least one the second electrode contact, will touch accordingly signal feedback to end message processing center, thereby pick out the orientation that runs into obstacle, make control system or operator make avoiding action towards the opposite direction that runs into obstacle to interposing catheter, handle like a cork interposing catheter and depart from barrier.
Two, design cleverly for this device, cheap material, simple production technology, form its low production cost, meets the feature that gets involved consumptive material in disposable blood vessel.
Brief description of the drawings
Fig. 1 is a kind of structural representation that is applied to the sense of touch probe on Research of Intravascular Catheterization in prior art;
Fig. 2 is the structural representation of the Research of Intravascular Catheterization sense of touch probe of a preferred embodiment of the present invention;
Fig. 3 is the schematic cross-section of the Research of Intravascular Catheterization sense of touch probe of a preferred embodiment of the present invention;
Fig. 4 is the schematic diagram of sense of touch probe dead ahead while touching barrier;
Fig. 5 is the schematic diagram of sense of touch probe side front while touching barrier.
Detailed description of the invention
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
With reference to figure 2, according to a preferred embodiment of the present invention, this Research of Intravascular Catheterization sense of touch probe comprises female pipe 10, that this mother manages is 10 that can be opened by one section of two, external diameter approximately the cylindrical insulation tubule of 1～3mm make, the cross sectional shape of female pipe 10 also can do ovalisation or have other shape of smooth surface, optionally, female pipe 10 is interior can arrange an isolated component, as dividing plate, for being managed to 10, mother is separated into forward chamber and back side chamber, in forward chamber for hold realize tactile feel should necessary element, in back side chamber for fixing an interposing catheter 20.
As shown in Figure 2, female pipe 10 front ends are outstanding to be provided with and to touch 11 for what transmit the power of touching, this shape of touching head can be cylinder, cuboid, cone, spheroid, disk umbrella or other shape, preferably, available employing disk umbrella, to strengthen touching area, increases the susceptiveness of touching head.Female pipe 10 front end inside are provided with the first electrode 12, and these the first electrode 12 elasticity are connected to touches 11, and this first electrode 12 is also connected to an input lead 13 to continue to obtain a signal of telecommunication.According to a preferred embodiment of the present invention, the first electrode 12 adopts the spring of conductive material to make, as the public electrode of sense of touch probe, this spring housing is on a spring base 16, one end is fixed, other end retractable, bending, spring base 16 with touch 11 between realize elasticity by an elastomer 17 and be connected.Above-mentionedly touch 11, elastomer 17, spring base 16 and spring (i.e. the first electrode 12) fixing in aggregates, an available draw point through touching 11, elastomer 17, spring base 16 three centers fix, or with glue, three is bonding, or combine the above-mentioned two kinds of modes that adopt.Above-mentioned fixing all-in-one-piece assembly is managed to 10 front opening from mother and fill in, then the limit wing of elastomer 17 is enclosed within outside female pipe 10, and in addition gluing fixing.Elastomer 2 can be used macromolecular material, also can make of materials such as springs, as long as enough elastic restoring forces can be provided.
Incorporated by reference to reference to Fig. 2 and Fig. 3, in female pipe 10, be also distributed with multiple the second electrode 14a, 14b, mutually insulated between each the second electrode 14a, 14b, and each the second electrode connects respectively an output lead 15.In the present embodiment, five the second electrodes are adopted altogether, comprise and be evenly distributed on female pipe 10 inwall surroundings and be close to four long strip type side-wall electrode 14a of female inside pipe wall setting and the contact 11 that just crashing is arranged on female a slice bottom electrode 14b managing in 10, these four side-wall electrode 14a form a side-wall electrode array, this bottom electrode 14b can by side-wall electrode array around a circular electric pole piece.Between above-mentioned each side-wall electrode 14a and/or between side-wall electrode 14a and bottom electrode 14b, can insulate by insulating barrier 18 is set, to improve the reliability of sense of touch probe, in addition, in order to reduce resistance, increase the sensitivity of sense of touch probe, all electrodes, comprise the first electrode 12 and the second electrode 14a, 14b, one deck low resistivity metal is all plated on surface, as silver, gold, copper, aluminum etc.
Certainly, also can adopt the second electrode of other number, as five, six, seven, eight even more side-wall electrode 14a add one or more pieces bottom electrodes 14b, those skilled in the art are to be understood that, when the lobe number of side-wall electrode array is more, distinguish and touch 11 to run into the direction of barrier meticulousr.In addition, the distribution that the second electrode is managed in 10 mother is also not limited to the form that side-wall electrode array adds bottom electrode, for example each the second electrode evenly can also be arranged in to an opening towards touching on an arc surface of 11, as long as the effect that the distribution of the second electrode can reach accurate instruction touches orientation.
Optionally, the outer layer protecting film 19 that also can be coated of whole sense of touch probe, so that the parts in sense of touch probe and the blood outside protecting film 19 are isolated, to improve the reliability of sense of touch probe.Described input lead 13 and output lead 15 can be coated on protecting film 19 inside, also can pass from protecting film 19.
The working method of the Research of Intravascular Catheterization sense of touch probe below in conjunction with Fig. 2 to Fig. 5 to a preferred embodiment of the present invention describes in detail.
As shown in Figure 2, when touching 11 do not touch any barrier in blood vessel time, the first electrode 12 is in initial position, being spring manages any deformation does not occur in 10 mother, its afterbody is in vacant state, do not come in contact with any the second electrode, thereby do not produce any output signal on the output lead 15 of the second electrode 14a, 14b.
When touching 11 while touching barrier, the first electrode 12 can be managed at least one second electrode contact in 10 with mother under the active force that touches head, because the first electrode 12 obtains a signal of telecommunication constantly by input lead 13, and the first electrode 12 and the second electrode all adopt conductive material to make, in the time that the first electrode 12 touches any one or more pieces second electrodes, this signal of telecommunication will be exported from corresponding output lead 15 through the second electrode.Can receive in real time from the feedback signal of each output lead 15 and whether touch with monitoring by a terminal handler, and identify sense of touch by the source of identification feedback signal and pop one's head in the endovascular orientation of touching, so that the past motion in the other direction of operation sense of touch probe is to dodge barrier.Can adopt various ways to realize obtaining of endovascular driving control and feedback information with processing about sense of touch probe and interposing catheter; it is not the claimed emphasis of the present invention; those skilled in the art should be implemented according to common technological know-how, therefore do not do concrete expansion at this.
Please refer to Fig. 4, schematic diagram when it touches barrier for sense of touch probe dead ahead.When touching 11 while touching the barrier of dead ahead, elastomer 17 compresses, bottom will be depressed into as the spring of public electrode, and touch with bottom electrode 14b, make the output lead 15 being connected with bottom electrode 14b send feedback signal, thereby terminal handler is known the dead ahead of sense of touch probe and is run into barrier.
In the time that obstacle disappears, elastomer 17 resiliences, make, as the spring disengaging of public electrode and contacting of bottom electrode 14b, to return to original state, and the signal of telecommunication on the output lead 15 being connected with bottom electrode 14b disappears.
Please refer to Fig. 5, schematic diagram when it touches barrier for sense of touch probe side front.When touching 11 while touching the barrier in side front, touching 11 can not only bounce back but also tilt taking elastomer 17 as axle center, at this moment can both meet bottom electrode 14b as the spring of public electrode, meet again at least a slice side-wall electrode 14a, make to send feedback signal with bottom electrode 14b and this output lead 15 that at least a slice side-wall electrode 14a is connected, thereby terminal handler is known the side front of sense of touch probe and is run into barrier.
Same, in the time that obstacle disappears, elastomer 17 resiliences, make, as the spring disengaging of public electrode and contacting of bottom electrode 14b and side-wall electrode 14a, to return to original state, and the signal of telecommunication on output lead 15 disappears.
All the other situations of touching can the rest may be inferred, do not repeat one by one at this.From above-described embodiment, in the time adopting four side-wall electrodes and a slice bottom electrode as the second electrode, altogether can indicate 17 kinds and touch orientation: front, east, south, west, north, the southeast, northeast, southwest, northwest, east+front, south+front, west+front, north+front, the southeast+front, northeast+front, southwest+front, northwest+front, substantially the optional position within the scope of covering 360 °, can meet the clinical requirement that interposing catheter is planted.Be understandable that, in the time that the second electrode number increases, the precision of orientation detection can further improve.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the claims in the present invention scope change and modify, and all should belong to the covering scope of the claims in the present invention.
Claims (13)
1. a Research of Intravascular Catheterization sense of touch probe, is characterized in that, comprising:
Female pipe;
Touch head, be arranged at one end of female pipe, the other end of described female pipe is used for arranging an interposing catheter;
The first electrode, is positioned at described female pipe inner, and elasticity touches head described in being connected to, and described the first electrode is connected to an input lead to obtain a signal of telecommunication;
Multiple the second electrodes, mutually insulated is also distributed in described female pipe, and each described the second electrode connects respectively an output lead;
When touching head while not touching any barrier, described the first electrode not with any the second electrode contact, on the output lead of described the second electrode, do not produce signal; When touching head while touching barrier, the first electrode under the active force that touches head with female pipe at least one second electrode contact, make the output lead output via corresponding at least one the second electrode of the described signal of telecommunication on the first electrode.
2. Research of Intravascular Catheterization sense of touch probe as claimed in claim 1, is characterized in that: the outer seal protection film that is provided with of described Research of Intravascular Catheterization sense of touch probe.
3. Research of Intravascular Catheterization sense of touch probe as claimed in claim 1, is characterized in that: described female pipe is insulant.
4. Research of Intravascular Catheterization sense of touch probe as claimed in claim 1, is characterized in that: described the first electrode is spring, and described spring is arranged on a spring base, and described spring base is connected with a described elasticity of touching.
5. Research of Intravascular Catheterization sense of touch probe as claimed in claim 4, is characterized in that: described spring base is connected with a described elasticity of touching by an elastomer, and described elastomer is arranged on the opening part of female pipe one end.
6. Research of Intravascular Catheterization sense of touch probe as claimed in claim 5, is characterized in that: described elastomer is macromolecular material or spring material.
7. Research of Intravascular Catheterization sense of touch probe as claimed in claim 1, is characterized in that: described multiple the second electrodes are evenly distributed on each orientation place in female pipe.
8. Research of Intravascular Catheterization sense of touch probe as claimed in claim 7, is characterized in that: described multiple the second electrodes comprise that the side-wall electrode array being arranged on female inside pipe wall and the contact that just crashing are arranged on the bottom electrode in female pipe.
9. Research of Intravascular Catheterization sense of touch probe as claimed in claim 8, is characterized in that: between described side-wall electrode array and bottom electrode, be provided with insulating barrier.
10. Research of Intravascular Catheterization sense of touch probe as claimed in claim 8, is characterized in that: described side-wall electrode array is that petal-shaped is arranged.
11. Research of Intravascular Catheterization senses of touch as claimed in claim 8 probes, is characterized in that: described side-wall electrode array comprises and is no less than four side-wall electrodes.
12. Research of Intravascular Catheterization sense of touch probes as claimed in claim 8, is characterized in that: described bottom electrode is a disk.
13. Research of Intravascular Catheterization sense of touch probes as claimed in claim 1, is characterized in that, the described head that touches is disk umbrella foremost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308673.XA CN103041495B (en) | 2011-10-12 | 2011-10-12 | Endovascular interventional catheter tactile probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308673.XA CN103041495B (en) | 2011-10-12 | 2011-10-12 | Endovascular interventional catheter tactile probe |
Publications (2)
| Publication Number | Publication Date |
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| CN103041495A CN103041495A (en) | 2013-04-17 |
| CN103041495B true CN103041495B (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110308673.XA Expired - Fee Related CN103041495B (en) | 2011-10-12 | 2011-10-12 | Endovascular interventional catheter tactile probe |
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| CN (1) | CN103041495B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877664B (en) * | 2014-03-28 | 2016-03-23 | 上海凯旦医疗科技有限公司 | There is the intravascular intervention sense of touch probe of touch range and azimuth information feedback |
| CN104783909B (en) * | 2015-04-01 | 2017-08-25 | 南京医科大学第一附属医院 | PICCO temperature sensor chamber protective caps |
| CN108441626B (en) * | 2018-06-06 | 2023-11-28 | 江苏省特种设备安全监督检验研究院 | Impact head for low-energy ultrasonic impact treatment |
| CN112546403A (en) * | 2020-12-30 | 2021-03-26 | 山东大学齐鲁医院 | Stomach tube with core temperature detects and prevents palirrhea effect of esophagus |
| CN115300749A (en) * | 2022-07-20 | 2022-11-08 | 同济大学 | Force feedback system, control method and control terminal of intelligent PCI (peripheral component interconnect) surgical catheter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416874A (en) * | 2007-10-08 | 2009-04-29 | 韦伯斯特生物官能公司 | Catheter with pressure sensing |
| CN201558168U (en) * | 2009-06-23 | 2010-08-25 | 贾罗琦 | Touch probe being applied to intravascular interventional conduit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06142031A (en) * | 1992-11-12 | 1994-05-24 | Mitsubishi Cable Ind Ltd | Medical care tool to be inserted in body and provided with detecting function for amount of self deformation and tactile sense function |
| JPH06190050A (en) * | 1992-12-22 | 1994-07-12 | Mitsubishi Cable Ind Ltd | Medical apparatus for intracorporeal insertion having tactile function |
| JPH1176169A (en) * | 1997-09-05 | 1999-03-23 | Olympus Optical Co Ltd | Tactile sensor probe |
| US20040204701A1 (en) * | 2000-10-18 | 2004-10-14 | Brian Cox | Mechanism for the deployment of endovascular implants |
| CA2469088A1 (en) * | 2001-12-05 | 2003-06-12 | Intumed Ltd. | Extendable tube |
-
2011
- 2011-10-12 CN CN201110308673.XA patent/CN103041495B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416874A (en) * | 2007-10-08 | 2009-04-29 | 韦伯斯特生物官能公司 | Catheter with pressure sensing |
| CN201558168U (en) * | 2009-06-23 | 2010-08-25 | 贾罗琦 | Touch probe being applied to intravascular interventional conduit |
Non-Patent Citations (3)
| Title |
|---|
| JP特开平11-76169A 1999.03.23 |
| JP特开平6-142031A 1994.05.24 |
| JP特开平6-190050A 1994.07.12 |
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| CN103041495A (en) | 2013-04-17 |
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Granted publication date: 20140723 |