CN1117707A - Detection of anatomic passages using infrared emitting catheter - Google Patents
Detection of anatomic passages using infrared emitting catheter Download PDFInfo
- Publication number
- CN1117707A CN1117707A CN94191160A CN94191160A CN1117707A CN 1117707 A CN1117707 A CN 1117707A CN 94191160 A CN94191160 A CN 94191160A CN 94191160 A CN94191160 A CN 94191160A CN 1117707 A CN1117707 A CN 1117707A
- Authority
- CN
- China
- Prior art keywords
- infrared
- photoconduction
- human body
- light
- ingredient
- 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
Links
Images
Landscapes
- Surgical Instruments (AREA)
- Endoscopes (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Radiation-Therapy Devices (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
A method and apparatus is provided for reducing the danger of cutting into a passage or organ of the body during a surgical procedure by inserting a catheter into the passage or organ, the catheter having interiorly thereof an infrared radiator and employing an infrared detection system that produces a detectable signal indicative of the proximity of an infrared probe to the passage or organ.
Description
Related application
The application is the subsequent application of No. 08/016565 application of submission on February 11st, 1993.Technical field
The present invention relates to avoid or locate the field of device in the human body or passage at the surgery intra-operative, particularly relate to a kind of using method and by a source of infrared radiation and the device that detection system is formed, the source of infrared radiation and detection system the two one of be inserted in organ or the passage, and another is positioned near this organ or the health, so that indication is inserted into the situation of that close part of near the situation of the intravital apparatus of body and this light source or this detector, thus the organ or the passage that help in surgery intra-operative location or avoid being inserted by one of above-mentioned apparatus.Background technology
The most important thing is to scratch organ or passage (for example urethra and ureter etc.) at the surgery intra-operative.Because the existence of blood, spongy body, middle tissue etc., make carry out near the operating zone particularly with the hand-to-hand zone of surgical area near these organs or passage are carried out very difficulty of hi-Fix.
Luminous conduit is used to survey conduit, blood vessel, organ etc.US Patent No provides for No. 4248214 a kind of urethral catheter of illumination to help the surgeon to survey the place of meeting of bladder and urethra, so that correctly finish the Marshall-Marchetti-Kranz operation.US Patent No 4782879 is that the organ that is used to throw light on carries out the representative of a lot of patents of the conduit checked in the body.
That utilizes Infrared Detectors to survey to produce heat in human body for example organizes that malignant tumor for example has description in the US Patent No 4784128 several pieces of patents.US Patent No 4821731 utilizes a sounding catheter-shaped intravital appearance of being grown up to resemble.
Following design is not all disclosed in the file of these references: utilize a ultrared conduit of generation and Infrared Detectors to determine the position of passage, organ etc., so that the surgeon can be operated in this zone under the situation that position to be avoided, position, working region is clearly understood.Goal of the invention
The purpose of this invention is to provide and a kind ofly be used to insert infrared emission conduit and a kind of IRDS of passage, conduit, organ etc., so that carry out accurate localization and warning surgeon not near the deathtrap at the surgery intra-operative.
Another object of the present invention provides the method for a kind of precise localizer official, passage, conduit etc., makes the surgeon can not invade such localized body part.
Another object of the present invention provides a kind of conduit that is used to insert body passageway etc., and this conduit infrared radiation is radiated on the elongated area of this passage or organ or is embodied as a point source.
Another object of the present invention provides a kind of IRDS, and this system provides detection signal or the clear indication that shows an infrared radiation source in the position of human body apace.
Another object of the present invention provides a kind of electronics switched system and control system, so as according to the infrared emission conduit with respect to be fixed to burn or laser-emitting device on detection system near the position forbid burning or launching laser.
Another object of the present invention provides the infrared ray optical direction that a kind of infrared light supply links to each other with a kind of same Infrared Detectors, and the placement location of this detector should be able to make this detector that the location indication of one or several human body ingredient is provided.
Another object of the present invention provides the throw light on light source in zone of contiguous this health ingredient of a kind of and being used to of utilizing that the system of ingredient combines in the infrared light positioning body, and is connected so that show the display system of this organ as required on monitor with this light source with one.Summary of the invention
When description is of the present invention, adopt following example: for ureter accurately being positioned on the necessary position, perhaps be bruised dangerous cause, particularly when carrying out hysterectomy, carry out ureteral location because these passages have.Infrared emission conduit of the present invention and detection system are not subjected to the restriction of this application, and this application is an example of apparatus and method of the present invention.
The infrared emission conduit by one flexible, polymer system, preferably circular and be encapsulated in one basically the photoconduction in the outer cover of flexible infrared transparent form.This photoconduction can be made of glass or the polymer with or without crust.The outer surface of photoconduction is through polishing or otherwise make it become transmitted infrared light on the elongated area in whole length, so as to make infrared light mainly be centered around conduit, passage (being ureter in the present invention) is launched around waiting.
In order to increase the radiation efficiency of photoconduction, can fix a reflector so that reflect any luminous energy that is not scattered to side outside when beginning at the far-end of this infrared emission photoconduction by it.
Emission photoconduction about polishing, adopted the optical fiber of many different lengths in another embodiment, the i.e. fibre bundle that constitutes by some very thin photoconductions, the optical fiber set with numerous minor diameter (25 to 50 μ) specifically twists together, and finishes on the launch site of launch tube with about 1 to 10mm surplus the difference then.In addition, cut at an angle the end of each thin optic fibre that will be in fibre bundle, so that infrared light is penetrated from this launch tube.
Can utilize various dissimilar Infrared Detectorss, for example: infrared detector, endoscope, camera, acoustic device, the sound intensity and frequency along with the close degree of infrared emission conduit, thereby with the close degree change of passage etc. and the system that changes.Infrared light supply can be pulsed or modulation system so that demonstration near degree can be provided by the intensity of the flash of light on monitor or the like.
No matter adopt which kind of Infrared Detectors, a significant advantage of the present invention is by adopting infrared light, makes intermediary haemal tissue, the spongy body etc. can screening of radiation light, thereby reduces at least significantly if unluckily mistake incidence rate can not be eliminated also.
In a desirable embodiment, the energy of launch tube is supplied with in an emitter control circuit control.In one embodiment, safety detector be placed on the ilium ridge above.This safety detector is measured the seriality of infrared transmitting tube with coupled integrity between its control circuit and/or infrared emission photoconduction, in fact it can be that detector of using at the surgery intra-operative, when system connected, it just in time monitored infrared emission.If the employing audion system is then adjusted and is offered the energy of infrared emission conduit, so that a desired musical sound amplitude of surgeon is provided.If this safety detector does not detect infrared emission, just send a warning musical sound.
As mentioned above,, Infrared Detectors is placed on the operative site at surgery intra-operative location ureter, will mobile Infrared Detectors when the surgeon punctures the newly developed area.Musical sound amplitude and/or frequency provide some to locate the necessary indication of one or a few urinary catheter.In this desirable embodiment, an infrared emission conduit preferably inserts in two ureters.
Be inserted into operative site with its Infrared Detectors, not as good as a photoconduction that is coupling on the detector is inserted in this position.Can adopt the photoconduction of 600 μ or 1000 μ, and it is coupled on the Infrared Detectors through a photo-coupler.
This infrared acquisition photoconduction can be with the apparatus implementation connection physically that is used to cut.For example, if adopt a laparoscopically apparatus of fulgerizing, then can utilize the Infrared Detectors system to prevent described apparatus energization when burning closely near ureter, and when this apparatus energization, make Infrared Detectors inoperative, because the heat that is produced by this process of burning may make this apparatus invalid otherwise.
Photoconduction is inserted in the organ to be protected, makes light source towards organ, the out of position of photoconduction of this infrared light supply and detector can be come, visible light source gamma camera and monitor can be used in combination with this system, so that provide the video of this organ to show.
Be meant a single light pipe or a branch of optical fibers or both combinations at this used " photoconduction " speech.
Read the description of a following desirable embodiment in conjunction with the drawings, can more clearly understand above-mentioned and its its feature, purpose and advantage of the present invention and the inventor in order to finish the best means that its invention is contemplated.Summary of drawings
Fig. 1 is conduit and the longitudinal section that has the light guide of controller;
Fig. 2 shows many fibre-optic conduits with different length;
Fig. 3 shows the conduit in the insertion ureter of a broken section;
Fig. 4 shows two conduits in the ureter that are inserted in that have checkout gear;
Fig. 5 is the control circuit structure chart that is used for luminous energy is supplied with photoconduction;
Fig. 6 is a kind of Infrared Detectors circuit diagram of form;
Fig. 7 is the block diagram of system of the present invention;
Fig. 8 shows the application of the reflective optical system that has infrared ray optical direction;
Fig. 9 shows the application of photoconduction in the checkout gear of system;
Figure 10 shows to a photoconduction of the apparatus of the fulgerizing physical connection with the circuit that is used for concerning between control detector and apparatus;
Figure 11 shows the block diagram of the detector circuit among Fig. 9;
Figure 12 shows the sectional elevation of an example of a conduit and a urinary pathway;
Figure 13 illustrates a kind of layout, and relative Fig. 3 in position of probe and photoconduction puts upside down in this arrangement;
Figure 14 shows the photoconduction in the device that is used in Figure 13;
Figure 15 is the electronic system block diagram that has the probe that is shown among Figure 13;
Figure 16 is the block diagram that has the electronic system of photoconduction of the present invention;
Figure 17 shows with the system that is used for showing the bonded Figure 13 of ureteral television system on the monitor screen.Detailed description of the invention
" photoconduction " speech is meant ray structure as illustrated in fig. 1 and 2.
Now specifically referring to Fig. 1, a launch tube 2 of the present invention by an infrared emission photoconduction 4 that is positioned at this launch tube and one by variable power supply 8 (D﹠amp; B Power, InC., Mode1 F240-100) the infrared of driving can light source 6 compositions.Energy enters photoconduction through a photo-coupler 3 (Motorola MFOE-1102), this photoconduction is made by polymeric material or glass material (preferably ESKA SH-4001 or SK-40 fiber), can be with crust, also can not be with crust, this photoconduction can make infrared light pass through with decay seldom.Surperficial polished on 10 in the district of photoconduction 4, so as to make infrared light can along around all directions emissions, enter this around the district through catheter wall 12, distinguish 10 length and will be used for where deciding according to this conduit.In described application, the about 30cm of ureteral length, the total length of this conduit is generally 65cm, diameter is 2.33mm, and the about 2m of this photoconduction is long.
Referring to Fig. 8, in order to improve the emission effciency of photoconduction 4, an infrared reflective device 5 makes and is not from distinguishing the infrared light reflection of 10 scatterings, makes it reflect back into district 10, so that an additional infra-red radiation is provided, thereby has improved the efficient of system.
Referring to Fig. 2, the emission photoconduction can be made by the optical fiber 21 of bunchys 23 a lot of different lengths and concentrated.The end 25 of every optical fiber is cut into an angle, so that the angled direction of light edge and catheter length is cast out from conduit, whereby with the zone around the infrared light irradiation.The angle of being cut needn't be even, so that infrared energy is spread out and guarantee to cover fully basically the peripheral region.One end of the optical fiber to a detector circuit to be used is connected on the HFBR450/HFBR4511 cable connector of Hewlett Packard manufacturing.
Referring to Fig. 3, conduit 2 is inserted in the ureter 18 through urethra 14 and bladder 16, so that infrared light is mapped on the peripheral region through ureter wall.Infrared Detectors 20 is used for detecting the existence from the infrared energy of infrared emission photoconduction 4.The energy that is transferred to optical fiber can not surpass 20mv.
Referring to Fig. 4, Fig. 4 shows a remodeling of the system of Fig. 3, and in Fig. 4, two conduits 2 and 2 ' respectively are arranged in the ureter, and supplies with infrared lights with same infrared light supply 6 through a light dispersion bundle device 22.Except adopting two conduits and light dispersion device, fundamental system is identical., in Fig. 3, also show and be furnished with a small-sized TV gamma camera 24 of checking mirror 25, so that illuminated ureteral the elephant is presented on the video monitor 26.This visual intensity is to check the function of mirror near the infrared light supply degree.Below discussion will be conspicuous, one since the beeping sound that the modulation of infrared light produces also can monitored device and IRDS 28 play out.
Safety detector can be placed near on near the human body surface the infrared emission catheter position, is to be placed on above the ilium ridge under ureteral situation.Safety detector is measured the seriality of infrared emission conduit with coupled integrity between its control circuit and/or infrared emission photoconduction.If safe photoconduction does not detect infrared emission, then send chimes of doom.Do not send chimes of doom if the safety detection circuit detects infrared emission, this safety detection circuit can be and the identical circuit of detector circuit among Fig. 3.
Referring to Fig. 5, there is shown the block diagram of the infrared transmitter of the present invention's employing.One 555 integrated timer be purchased and be utilized to this emitter can from the electronic device supply store.A 6V battery 30 is supplied with the power supply of the clock circuit of being represented by reference number 32 555, and this intervalometer drives a coupled infrared radiation source of same photoconduction or irradiator 34.
Fig. 7 shows the block diagram of the system of Fig. 5 and Fig. 6.Emitter control circuit 8 drives the infrared light supply 34 of infrared light being supplied with emission photoconduction 4 or some photoconductions.This or these photoconduction is launched infrared light to the inside of human body of representing with reference number 46, is detected device 38 then and surveys.Detector 38 can be positioned at body, checks mirror 25---the structure of gamma camera 24 if adopt, and then gamma camera 24 can be placed on external.This Infrared Detectors also can be placed on an apparatus, endoscope etc. above.
In Fig. 4, check that mirror 25 is inserted into field of operation for one so that infrared light is sent to gamma camera 24, thereby on monitor demonstration information.Equally, also can adopt infrared ray optical direction with the Infrared Detectors of infrared energy from the inner directive health of field of operation outside, referring to Fig. 9, can be used for that infrared energy is coupled to a photo-coupler 52 on the infrared light detector 54 by one an infrared ray optical direction 50 is installed in it away from ureteral that end.
Photoconduction 50 can be transmitted in the light in the infrared band usually, and the diameter of photoconduction 50 is that 1000 μ m also plan to be inserted in the human body infrared energy is passed to external detector 54.
In an example that has a laparoscopy electrosurgical unit, can adopt the photoconduction of Fig. 9, referring to Figure 10, by source 58 energizes, control circuit 63 receives the excitation of controlling electrosurgical unit from a signal of detector 68 through photoconductions 59 through a detector control circuit 63 for electrosurgical unit 56.
Referring to Figure 11, there is shown the details of control circuit 63, an Infrared Detectors 68 links to each other with a speaker transistor switch 64 through an infrared light detecting circuit 70 same voltage comparators 66.Voltage comparator 66 will relatively produce the signal of the fiducial value of the voltage level of an indicating circuit 64 and reference voltage level in the back from the same reference voltage of the voltage of circuit 70 on lead-in wire 60.60 allomeric pipe switches 61 that go between link to each other with door 72 with one, so that provide an input signal to them.Supply with loudspeaker switch 64 with the output of door 72 through phase inverter 75.The output signal of loudspeaker switch 64 is supplied with speaker-speaker circuit 74.
At intra-operative, when the output voltage of infrared optical detector circuit 70 equals or exceeds variable reference voltage on comparator 66, the fulgerize electric current of transistor switch 61 of supply becomes 0, so make the open circuit between power supply 58 and the electrosurgical unit 56 of fulgerizing, thereby make electrosurgical unit 56 outages, in addition, as long as the voltage of infrared detector circuit is lower than the variable reference voltage on the comparator, be anastomosing all the time at the circuit of fulgerizing between power supply and the electrosurgical unit.
Referring to door 72, when these two input voltage levels with door of supply are high level, electrosurgical unit 56 is used in indication, that voltage of supplying with comparator from the infrared detector circuit is lower than threshold voltage, become high level with the output of door, and phase inverter 75 is output as low level, driving speaker transistor switch 64 disconnects, therefore the electric instantaneous disconnection of speaker, finish in case burn, the power supply of supplying with speaker and speaker circuit just resets, and can utilize detector to come the initial calibration operation of detected catheter.
Should be noted that the process of burning may jeopardously be turned off cautery near before the ureter with regard to producing abundant heat at cautery.This problem can solve by disconnecting cautery simply, and in this case, speaker circuit is work, will sound when cautery is too near to ureter to unsafe degree.
Referring to Figure 12, Figure 12 illustrates a conduit 76 with urinary pathway, this conduit comprises an emission photoconduction 78 and a urinary pathway 80, urine in urinary pathway 80 will make the infrared luminous energy by this passage reduce, in case conduit has entered in the ureter, urine stream just is in the state of accidental drop, thereby the decay of infrared luminous energy is reduced, even urine also is like this under dispersive situation.
Referring to Figure 13, the layout that shown in the figure run in the position of a kind of infrared light emitter and infrared detector.
The pulsed infrared energy that light emission probe 86 receives from following light source 88.Handling the end 90 of probe 86 sends till the musical sound of hearing of indication ureter 94 positions up to photodetector 92.More particularly the photoconduction 96 of an optical fiber is arranged in a conduit 98 that is positioned at ureter 94.This photoconduction is equipped with detection segment 100, and detection segment 100 is positioned at the complete in the longitudinal extension district (20cm) around the photoconduction of photoconduction 96.
This photoconduction is guided infrared energy into a detector 99, and as mentioned above, this detector 99 just sends the musical sound that can hear when it receives the energy of certain numerical value, and this musical sound is pointed out the position of sound end 90 with respect to organ (being ureter at this).
Referring now to Figure 14,, this photoconduction comprises fibre bundle 102 (see figure 2)s with a far-end 104, far-end 104 has coarse (abrasion or indentation an are crossed) surface (about 20cm is long), infrared light can be transmitted in this fibre bundle, and be mapped to a transparent plastic bar 108 through an optical connector 106 along optical fiber, arrive the light entrance receptor 110 (MotorolaMLED73) in the testing circuit at last, this testing circuit can be included in the circuit of Figure 16.In desirable embodiment of the present invention, photoconduction 102 is Mitsuibishi optical fiber ESKA SK40, and adapter is 106AMP ' S Optimatic Optica1 Connector 228087-1.
The block diagram of light source 88 has been shown among Figure 15.Referring to Figure 15, one is exchanged the manostat 112 that drives provides one+12V to a pulse generator 116 by on/off switch 114 burning voltage.Pulse generator produces triangular wave or sawtooth waveforms and drives a pair of light exit 118 and 120.Light 120 is as the infrared luminous energy of about 5mv being offered probe 86 and exemplifying out.Light exit 120 converts the pulse electric energy that sends device 116 to be added on the probe pulsed infrared luminous energy.Probe 86 is photoconductions identical with photoconduction 96, but probe 86 does not have rough region, therefore only from the end emission light of probe 86.Electricity isolation completely so just is provided.A bar shaped power supply display 122 is driven by the display driver 124 of a conventional design.This display is a luminous fillet; This display has 9 sections so that the level of indication emitted energy.
Referring now to Figure 16,, importing one from the light of detector photoconduction 96 is transform light energy the light entrance receptor 110 of electric energy.An electricity isolation completely is provided once more.The output of receptor 126 is through preamplifier 130, and wave filter 132 and direct current post amplifier 134 reach voltage-controlled agitator 128.Preamplifier 131 offers preamplifier 130 with isolated low noise regulation voltage.The output frequency of agitator 128 is triangular waves, and is the function of the DC voltage output level of amplifier 134, thereby the indication of the amplitude that shines the light on the photoconduction 96 is provided.
The output voltage of agitator 128 is in proper order by sinewave inverter 138, volume filter network 140 and the audio frequency amplifier speaker 136 of feeding.And the sound of speaker output is the function of probe 86 near the ureter degree.Explain the definite function of each above-mentioned element below particularly: preamplifier 130 differentiates between pulsed light that receives and the bias light that receives from those light sources, and makes the bias light decay and pulsed optical signals is amplified.Wave filter 132 comprises a peak averaging detector, this detector becomes peak value component and average weight with the signal decomposition of preposition amplification, focuses on poor between peak value (high frequency) and meansigma methods (low frequency) component of signal and add as the direct current post amplifier 134 of a high pass filter.Voltage controlled oscillator 128 is transformed into sawtooth voltage with the difference between peak value and the meansigma methods component, and this sawtooth voltage is become sine wave by sinewave inverter 138.The volume filter network can be controlled volume can also reduce bass.
It is pointed out that also this difference signal offers a detector display device by voltage controlled oscillator, this display device drives a bar graph (for example shown in Figure 13)
Referring now to Figure 17,, the system of the Figure 13 that combines with an illuminator shown in the figure, this illuminator is made of a peritoneoscope light source 150 that luminous energy is offered an optical conductor 152.This optical conductor is used to the surgical operation field of the optical illumination that does not have infrared component from light source 150.Cross 152 to abdominal cavity gamma cameras 154 of optical conductor from the light of field of operation also transmission, this gamma camera has an a slice or several infrared barrier filter of taking off from one three optical filter gamma camera.Gamma camera 154 sends a signal to monitor 158 through lead 156, and this monitor shows ureter under the situation of present embodiment.
Obviously, other some infrared radiation sources are looped around in the human body, but utilize a pulse infrared light source of supplying with photoconduction to get rid of signal from these sources.
It is to be undertaken by general sleeve pipe that probe 86 and photoconduction 152 are penetrated in the body.Probe 86 is to be fixed to carrying out surgical operation with traditional technology to be inserted on the intravital apparatus of people.
In some cases, for example in the tumor department of cerebral surgery, need a point source.At this moment, probe is only launched infrared light from its end, and serves as the role of knub position indicator.
In case provide above-mentioned description, a lot of other advantages, remodeling and to improve for this professional those of ordinary skill will be conspicuous.So other remodeling, advantage and improvement will be considered to a part of the present invention, and protection scope of the present invention is defined by the claims.
Claims (29)
1, a kind of have the intra-operative of the intrusion human body of injury to locate or reduce the method for danger at surgical operation or other ingredient to human body, has a conduit to be inserted in the described human body ingredient when operation, and this method comprises the steps:
A conduit is inserted in this human body ingredient;
Elongated infrared ray optical direction with an emission infrared light part is inserted in this conduit;
Infrared luminous energy is introduced this photoconduction;
Indicate the degree of a surgical procedures of carrying out by the infrared intensity that mensuration is launched from the human body ingredient on the surgical site near this human body ingredient.
2, the method for claim 1 is characterized in that also comprising:
An Infrared Detectors is inserted near this human body ingredient the surgical opening.
3, the method for claim 1 is characterized in that also comprising:
Be positioned at the Infrared Detectors energy supply of experiencing operating human external to one; With
To can pass from inside of human body with from the infrared of this human body ingredient emission to being positioned at external Infrared Detectors.
4, the method for claim 1 is characterized in that also comprising:
With this infrared light of detectable frequency modulation(PFM) and produce one the indication this modulating frequency signal.
5, the method for claim 1 is characterized in that also comprising:
The far-end that is not from the infrared luminous energy of this photoconduction emission from this photoconduction is reflected.
6, the method for claim 1 is characterized in that also comprising:
To one be positioned at the Infrared Detectors energy supply of experiencing operating human external and
Utilize one can insert the intravital photoconduction of people infrared energy is passed on this detector.
7, method as claimed in claim 6 is characterized in that also comprising:
This photoconduction physically is connected on the surgical operating instrument that can encourage and
Utilize an infrared response circuit, so that when the infrared energy level that is detected surpasses predetermined level, interrupt the work of surgical operating instrument.
8, method as claimed in claim 7 is characterized in that also comprising:
Allowing to make this infrared response circuit inoperative during this surgical operating instrument of excitation.
9, a kind of operation technique and device that carries out the close degree of at least one adjacent health ingredient of operating organizer of detecting comprises:
A conduit that is used for being inserted into a human body ingredient;
One can be inserted in this conduit and can be along the luminous photoconduction of one section length;
One is positioned at the locational light source that can make luminous energy inject described photoconduction;
Described photoconduction be arranged in a section of human body ingredient, this section photoconduction can send the luminous energy of its length of crosscut;
One is positioned at the locational infrared detection device that can detect by the infrared energy of this photoconduction emission;
Photo-detector and
A signal generation device, it has the luminous energy intensity that detects according to this detector and produces the signal of an indication surgical procedures near the degree of this human body ingredient.
10, device as claimed in claim 9 is characterized in that described luminous energy is infrared luminous energy, and described detector is an Infrared Detectors;
The shape of described Infrared Detectors can be inserted in the human body in the surgical operation visual range it.
11, device as claimed in claim 10 is characterized in that:
Described source of infrared energy has a device that is used to produce the modulation signal of a preset frequency.
12, device as claimed in claim 11 is characterized in that:
Described signal generation device comprises that is used to respond the synthetic device of this preset frequency.
13, device as claimed in claim 12 is characterized in that also comprising:
The device of the described signal generation device of response of the signal that sense organ that is used to provide a people can be felt, described signal are the functions of the intensity of the signal that produced by described signal generation device.
14, device as claimed in claim 12 is characterized in that:
Described source of infrared energy comprises an assembly that is used to produce about 800Hz signal.
15, device as claimed in claim 9 is characterized in that:
Described light source is an infrared light supply, and described detector is an Infrared Detectors;
Described Infrared Detectors is positioned at external, and
The device that is used for the infrared energy directive infrared intensity detector that will detect near each position this human body ingredient, described intensity are that described device is with the function of described health ingredient near degree.
16, device as claimed in claim 9 is characterized in that also comprising:
One be positioned at described photoconduction away from the infrared reflector on that end of described light source, the infrared light of getting back to the launch site is not penetrated in reflection whereby.
17, device as claimed in claim 9 is characterized in that:
Described Infrared Detectors is positioned at external, and comprises:
Another can be inserted in the operation visual range so that infrared light district in the health is transferred to the photoconduction of described Infrared Detectors.
18, device as claimed in claim 17, it is characterized in that described another photoconduction can connect by the same physically apparatus that encourages, and comprise a control circuit, when surpassing a predetermined level, the infrared energy of this control circuit on affacting described Infrared Detectors forbid encouraging described surgical operating instrument, and when described surgical operating instrument is energized, forbid encouraging described Infrared Detectors.
19, device as claimed in claim 17 is characterized in that:
The surgical operating instrument that described another photoconduction can samely physically be used to be inserted into human body is connected; That end of closely close this surgical operating instrument of this another photoconduction is away from surgical hands.
20, device as claimed in claim 9 is characterized in that:
Described photoconduction comprises:
Some have the thin optic fibre of different length;
The end face of these optical fiber is cut into angle, makes infrared light penetrate this conduit whereby.
21, device as claimed in claim 20 is characterized in that these optical fiber finish in the launch site of conduit with the interval of 1mm to 10mm.
22, a kind ofly during surgical operation or other are had a mind to invade in the human body, detect the same close degree methods that is different from the health ingredient of that health ingredient to be operated of apparatus, comprising:
One infrared light supply is inserted in this human body;
One infrared ray optical direction is inserted in this human body;
One of this light source and this photoconduction are inserted in the human body ingredient of described that health ingredient that is different from pending operation;
Determine the functional relationship between the position of relative back, another the position one health ingredient in light source and the photoconduction with this surgical operating instrument, and
Indicate another the close degree in described photoconduction and the light source with a described back human body ingredient.
23, method as claimed in claim 22 is characterized in that:
The same intravital surgical operating instrument of the people who undergos surgery that is inserted into of light source is carried out physical connection.
24, method as claimed in claim 22 is characterized in that:
For a signal that can distinguish with the background infrared energy being provided and making light source is light-pulse generator.
25, method as claimed in claim 25 is characterized in that:
What irradiation was positioned at the extraorgan enters the intravital inlet region of body, and described organ refers to that organ that one of this light source and photoconduction have inserted;
TV camera and this district of monitor monitors with infrared-sensitive.
26, a kind ofly be used to survey an apparatus, comprise with a human body ingredient of at least one tissue contiguous to be operated device near degree:
A source of infrared energy;
An Infrared Detectors;
One is used for being directed to photoconduction on this Infrared Detectors with inciding top infrared luminous energy;
Be inserted near one in this light source in that ingredient of this tissue or the photoconduction;
That light source or the photoconduction that do not insert in the tissue should be able to make the infrared energy from this light source incide on this photoconduction with respect to the location of inserting intravital that light source or photoconduction, and
Be used to produce the signal of this apparatus of indication and the close degree of this tissue.
27, device as claimed in claim 26 is characterized in that also comprising:
Be used to make this light to become the device of pulsed light.
28, device as claimed in claim 27 is characterized in that this device that makes light become pulsed light is used to produce a signal and comprises:
A circuit that is used to produce a signal of determining by difference between the peak value of described pulsed light and the background infrared light, and
Be used to produce a device with voltage of the frequency of determining by this signal amplitude.
29, device as claimed in claim 28 is characterized in that also comprising:
This last-mentioned voltage transformation become sinusoidal wave device and
A sound generator that is used to receive this sine wave signal.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1656593A | 1993-02-11 | 1993-02-11 | |
| US08/016,565 | 1993-02-11 | ||
| US08/190,516 US5423321A (en) | 1993-02-11 | 1994-02-02 | Detection of anatomic passages using infrared emitting catheter |
| US08/190,516 | 1994-02-02 | ||
| PCT/US1994/001897 WO1994017732A1 (en) | 1993-02-11 | 1994-02-10 | Detection of anatomic passages using infrared emitting catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1117707A true CN1117707A (en) | 1996-02-28 |
Family
ID=26688774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94191160A Pending CN1117707A (en) | 1993-02-11 | 1994-02-10 | Detection of anatomic passages using infrared emitting catheter |
Country Status (9)
| Country | Link |
|---|---|
| CN (1) | CN1117707A (en) |
| AT (1) | ATE207327T1 (en) |
| BR (1) | BR9405722A (en) |
| CA (1) | CA2155853C (en) |
| DE (1) | DE69428779T2 (en) |
| IL (1) | IL108615A0 (en) |
| LV (1) | LV11268B (en) |
| NO (1) | NO953136L (en) |
| PL (1) | PL310329A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446723C (en) * | 2001-06-19 | 2008-12-31 | 宾夕法尼亚大学理事会 | Optical guidance system for invasive catheter placement |
| CN102124096A (en) * | 2008-07-16 | 2011-07-13 | 儿童医疗中心有限公司 | Organ mimic device with microchannels and methods of use and manufacturing thereof |
| CN102846308A (en) * | 2011-06-28 | 2013-01-02 | 克里斯蒂数字***美国有限公司 | Method and apparatus for detection of catheter location for intravenous access |
| CN107569285A (en) * | 2017-09-30 | 2018-01-12 | 华中科技大学 | A kind of endoscopic system and method for infrared acquisition ureter position |
| CN107811705A (en) * | 2017-11-27 | 2018-03-20 | 湖北得康科技有限公司 | Novel endoscope system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009044303B4 (en) * | 2009-10-21 | 2012-04-19 | Karlsruher Institut für Technologie | Fast optical tomography |
-
1994
- 1994-02-10 BR BR9405722A patent/BR9405722A/en not_active Application Discontinuation
- 1994-02-10 AT AT94909757T patent/ATE207327T1/en not_active IP Right Cessation
- 1994-02-10 PL PL94310329A patent/PL310329A1/en unknown
- 1994-02-10 DE DE69428779T patent/DE69428779T2/en not_active Expired - Lifetime
- 1994-02-10 CA CA002155853A patent/CA2155853C/en not_active Expired - Lifetime
- 1994-02-10 CN CN94191160A patent/CN1117707A/en active Pending
- 1994-02-10 IL IL10861594A patent/IL108615A0/en unknown
-
1995
- 1995-08-10 NO NO953136A patent/NO953136L/en unknown
- 1995-09-11 LV LVP-95-278A patent/LV11268B/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446723C (en) * | 2001-06-19 | 2008-12-31 | 宾夕法尼亚大学理事会 | Optical guidance system for invasive catheter placement |
| CN102124096A (en) * | 2008-07-16 | 2011-07-13 | 儿童医疗中心有限公司 | Organ mimic device with microchannels and methods of use and manufacturing thereof |
| CN102124096B (en) * | 2008-07-16 | 2014-10-22 | 儿童医疗中心有限公司 | Organ mimic device with microchannels and methods of use and manufacturing thereof |
| CN102846308A (en) * | 2011-06-28 | 2013-01-02 | 克里斯蒂数字***美国有限公司 | Method and apparatus for detection of catheter location for intravenous access |
| US9247906B2 (en) | 2011-06-28 | 2016-02-02 | Christie Digital Systems Usa, Inc. | Method and apparatus for detection of catheter location for intravenous access |
| CN107569285A (en) * | 2017-09-30 | 2018-01-12 | 华中科技大学 | A kind of endoscopic system and method for infrared acquisition ureter position |
| CN107811705A (en) * | 2017-11-27 | 2018-03-20 | 湖北得康科技有限公司 | Novel endoscope system |
Also Published As
| Publication number | Publication date |
|---|---|
| NO953136D0 (en) | 1995-08-10 |
| CA2155853C (en) | 2005-04-12 |
| DE69428779D1 (en) | 2001-11-29 |
| DE69428779T2 (en) | 2002-08-08 |
| ATE207327T1 (en) | 2001-11-15 |
| LV11268B (en) | 1996-10-20 |
| IL108615A0 (en) | 1994-08-26 |
| LV11268A (en) | 1996-06-20 |
| PL310329A1 (en) | 1995-12-11 |
| NO953136L (en) | 1995-10-10 |
| BR9405722A (en) | 1995-11-28 |
| CA2155853A1 (en) | 1994-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3548790B2 (en) | Anatomical conduit detection using an infrared emitting catheter | |
| US7273056B2 (en) | Optical guidance system for invasive catheter placement | |
| US7992573B2 (en) | Optically guided system for precise placement of a medical catheter in a patient | |
| US5879306A (en) | Infrared system for visualizing body members | |
| US6516216B1 (en) | Circumferential transillumination of anatomic junctions using light energy | |
| US5517997A (en) | Transillumination of body members for protection during body invasive procedures | |
| US20020099293A1 (en) | Transillumination of body members for protection during body invasive procedures | |
| CN101765397A (en) | Be used for the three-dimensional optical guidance that conduit is placed | |
| US20130289347A1 (en) | Endoscopic system | |
| CN101128151A (en) | Optically guided system for precise placement of a medical catheter in a patient | |
| CN1440259A (en) | High power semiconductor laser diode | |
| CN1117707A (en) | Detection of anatomic passages using infrared emitting catheter | |
| JP4886698B2 (en) | Optically guided system for precise patient placement of medical catheters | |
| JP4038590B2 (en) | Method and apparatus for circularly illuminating anatomical joints using light energy | |
| WO1996009001A1 (en) | Transillumination of body members for protection during body invasive procedures | |
| AU2002315338B2 (en) | Optical guidance system for invasive catheter placement | |
| AU2002315338A1 (en) | Optical guidance system for invasive catheter placement | |
| RU95122651A (en) | DETECTION OF ANATOMIC CHANNELS USING A CATHETER Emitting Infrared Radiation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |