CN201899482U - Anorectumoscope system with infrared thermal scanning function - Google Patents
Anorectumoscope system with infrared thermal scanning function Download PDFInfo
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- CN201899482U CN201899482U CN2010206512091U CN201020651209U CN201899482U CN 201899482 U CN201899482 U CN 201899482U CN 2010206512091 U CN2010206512091 U CN 2010206512091U CN 201020651209 U CN201020651209 U CN 201020651209U CN 201899482 U CN201899482 U CN 201899482U
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- infrared
- infrared heat
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- anorectumoscope
- anorectal mirror
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Abstract
The utility model belongs to the field of medical appliances, in particular to an anorectumoscope system with an infrared thermal scanning function, which comprises a hard anorectumoscope, a cold light source host machine, a camera host machine and an endoscopic monitor, wherein the cold light source host machine, the camera host machine and the endoscopic monitor are connected with the hard anorectumoscope, and an infrared thermal scanning system is also arranged on the hard anorectumoscope and comprises an infrared thermal scanning probe, an infrared thermal scanning processing system host machine and an infrared thermal scanning system monitor. The anorectumoscope system introduces the infrared thermal scanning technology on the basis of the traditional anorectumoscope, three-dimensional vascular static images of the anorectum wall are clearly displayed through the linear and annular movement of the infrared thermal scanning probe, and reliable and objective basis is provided for doctors to judge the pathological change and function conditions of the anorectum. In addition, the infrared thermal scanning system disclosed by the utility model provides various work modes including an ordinary display mode and a night vision display mode, and the doctors can make correct diagnoses through analyzing and comparing diagnosis images in different display modes. The anorectumoscope system greatly enriches the diagnosis measures of anorectal diseases, and the diagnosis accuracy is effectively improved.
Description
Technical field
This utility model belongs to field of medical appliances, is specifically related to have the enteroscope system of the band infrared heat scanheads of infrared heat scan function.
Prior art
Medical infrared imaging derives from military industrial technology, use the history in existing more than 40 year, along with medical science, infrared imaging, and the development of multiple technologies such as multimedia, the temperature resolution of infrared imaging has reached 0.05 degree, spatial resolving power has reached 0.8mrad, image definition is greatly improved, the interpretation of result intuitive and convenient, and its range of application clinically enlarges.Infrared imaging diagnosis at present demonstrates certain advantage in the following areas: 1, judge position, scope, the degree of acute and chronic inflammation; 2, the blood supply functional status of monitoring vascular lesions; 3, tumor early warning indication, the omnidistance supervision and the curative effect assessment.This shows, during infrared imaging to the important supplement of other morphology diagnostic methods such as B ultrasonic, CT, MR.
The anorectal mirror is the anorectal mirror that hard scope end fore device has the electronic CCD process chip, the anorectal mirror is the core apparatus that carries out anal-surgery, the anorectal mirror is connected with shooting main frame, scope monitor and cold light source main frame, cooperate various operating theater instruments, the doctor can go deep in the anorectal road, checks and handle the anorectal disease.
Do not occur still at present that both are incorporated into the endoscopic system of exercising usefulness in conjunction with the anorectal mirror with the infrared heat scanheads.Therefore, a kind of enteroscope system technology with infra-red heat scan function that the infrared heat scanning technique is used in combination with the anorectal mirror of design is extremely urgent.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of enteroscope system with infra-red heat scan function is provided, this enteroscope system is that infrared heat scanheads and system are introduced in the enteroscope system, by the infrared heat scanheads anorectal wall tissue is carried out spatial scanning, transfer of data to the infrared heat scanning system main frame that the continuous crosscut scanning in many planes obtains carries out Flame Image Process, the three-dimensional blood vessel still image of clear demonstration anorectal wall, the infrared heat scanogram in one width of cloth anorectal road is provided for the doctor, make the doctor according to the display image that obtains, by analyzing the infra-red heat scanogram of anorectal wall, understand the function of anorectal, obtain beyond thought diagnosis effect.
In order to realize above-mentioned technical purpose, this utility model is achieved through the following technical solutions:
Enteroscope system with infrared heat scan function described in the utility model, comprise hard anorectal mirror and the cold light source main frame that is connected with hard anorectal mirror, shooting main frame, scope monitor, also be provided with the infrared heat scanning system on the described hard anorectal mirror, described infrared heat scanning system comprises infrared heat scanheads, infrared heat scan process system host and infrared heat scanning system monitor.
In this utility model, described hard anorectal mirror reaches whether have intake tunnel and exhalant canal according to its optical system that adopts, and can be divided into following three kinds of forms:
First kind of form: described hard anorectal mirror is for adopting the anorectal mirror of electronics ccd optical system, and it comprises hard scope end, cold light source joint, data connector, at least one linear type instrument channel, intake tunnel and exhalant canal.
Second kind of form: described hard anorectal mirror is for adopting the anorectal mirror of electronics ccd optical system, described hard anorectal mirror is for adopting the anorectal mirror of electronics ccd optical system, it comprises hard scope end, cold light source joint, data connector, at least one linear type instrument channel, compare with above-mentioned first kind, it does not have intake tunnel and exhalant canal.
Second kind of form: described hard anorectal mirror is for adopting the anorectal mirror of prism optical system, and it comprises hard scope end, cold light source joint, eyepiece input, at least one linear type instrument channel, intake tunnel and exhalant canal.
In this utility model, the hard scope end of the hard anorectal mirror of above-mentioned three kinds of forms is the hard material manufacturing, has inflexibility, diameter is smaller or equal to 20mm, long 300～the 450mm in hard scope end, in addition, for fear of the needs of damage mucosal tissue, the first end of hard scope end is designed to blunt type; The instrument channel of the anorectal mirror of above-mentioned three kinds of forms is all more than or equal to 3.0mm, and first and the diameter of the intake tunnel of the hard anorectal mirror of the third form and exhalant canal all more than or equal to 1.0mm.
Hard anorectal mirror described in the utility model, the ccd optical system device that the anorectal mirror of first and second kinds of forms adopts is at work end front end, adopt the electronic CCD optical system of diameter more than or equal to the 3.0mm optical lens, its CCD chip adopts≤1/4 "; the CCD of at least 48 universal effect pixels, 100 ° of the angles of view or more than; The anorectal mirror of the third form adopts prism optical system, and its optical lens is more than or equal to 3.0mm.
In this utility model, described infrared heat scanheads comprises probe work end, operator handle and data wire, described probe work end is passed the linear type instrument channel of anorectal mirror main part and is stretched out from the front end of hard scope end, described data wire is connected with infrared heat scan process system host by joint, and described infrared heat scanning system monitor is connected with infrared heat scan process system host.
The probe work tip lengths 500～2000mm of infrared heat scanheads described in the utility model, the front end of described probe work end is promptly popped one's head in tip minister degree less than 50mm, and external diameter that should probe work end is smaller or equal to 3.0mm, design has ultrared in the probe work end, ultrared is equipped with infrared facility, infrared facility comprises the infrared light supply emitter, infrared reception camera lens; Infrared light supply emitter and infrared reception camera lens are formed one group of infrared facility, and the inside, work end is integrated with three groups of identical infrared facilitys, and three groups of infrared facilitys are mutually 60 degree designs; Ultrared can be rotated by the driving of motor, and does linear and annular moving, thereby does linear and annular scanning to being scanned body.
The operator handle of infrared heat scanheads described in the utility model, its structure comprises gauge tap, mode selection switch, inching switch etc.Described data wire is connected with infrared heat scan process system host by joint.
Infrared heat scan process system host described in the utility model, its guidance panel and operation keyboard or hand-held equipment provide abundant control knob, buttons such as switch, model selection, infrared intensity fine setting, monitor menu.Model selection can be switched different display modes, comprise common display pattern and night vision display mode, the common display pattern is meant the display mode that infrared scan carries out under the irradiation of endoscopic cold light source and infrared light supply, the night vision display mode is meant under the irradiation that does not have endoscopic cold light source and infrared light supply, rely on self different radiant intensity of tissue substance to come imaging, the doctor can obtain the better diagnosis effect of another one angle to the image comparison analysis under two kinds of patterns.
Infrared heat scan process system host described in the utility model, the external operation keyboard of the output port of its rear board or hand-held equipment, monitor etc., the scanning of infrared heat scanning system monitor is consistent with the scanning of infrared heat scanheads, realizes synchronous scanning.
Infrared system described in the utility model, its operation principle: be covered with abundant blood vessel between anorectal road and perienchyma, the arterial blood temperature is higher, the venous blood temperature is lower, there is certain heat exchange mechanism in both, the both is to the infrared ray of external radiation different wave length, in the anorectal road and the influence of not only receiving blood flow in the blood vessel of self temperature of perienchyma, influenced by the metabolic of self, so the temperature of anorectal road tissue can owing to rich blood vessel whether with the different diversityes that show of metabolic active degree, extraradial ultrared wavelength is also had nothing in common with each other, in general, if diseases such as inflammation or tumors, its temperature will uprise, and show in the infrared heat scanogram it then is unusual.Studies show that, the absorption of composition in the blood (serum, blood plasma, hemoglobin, albumin, erythrocyte, lymphocyte, platelet) to infrared light in spectrum is minimum, mean that blood is except external infrared radiation, also the ultrared inhalation effects to surrounding tissue is very little, the precision of infrared system is smaller or equal to 0.05 degree, spatial resolving power reaches 0.8mrad at least, and the infrared heat scanheads closely scans in the anorectal road, obtains meticulous accurate infrared image.
Infrared system described in the utility model, its work process: blood flow and anorectal wall are organized radiating infrared ray in the blood vessel, after the accurate Infrared Detectors-infrared reception camera lens reception that enters the infrared scan probe in the anorectal road, process chip converts optical signal to the signal of telecommunication, through pretreatment (as amplification, filtering etc.), enter infrared heat scan process system host afterwards just be amplified to certain level by preamplifier and main amplifier.The signal of importing main frame simultaneously also has synchronizing signal, with reference to black matrix signal etc.Transfer of data to the infrared heat scanning system main frame that the continuous crosscut scanning in many planes obtains carries out Flame Image Process, output to the infrared system monitor, the three-dimensional blood vessel still image of clear demonstration anorectal, the doctor can analyze by image, can find that the anorectal intramural vessels is abundant unusually, aberrant angiogenesis is sparse or exist blood vessel to lack abnormal conditions such as zone, instant diagnosis basis in time is provided for the doctor.
Enteroscope system with infrared heat scan function described in the utility model, its clinical operation method is as described below: the doctor at first requires patient to get calculi position, behind the sterile drape, hard anorectal mirror is entered the anorectal road via patient's anus, hard anorectal mirror can clearly be observed the image that the anorectal road amplifies several times, and can do treatment to the disease in anorectal road by instrument channel, intake tunnel and exhalant canal; Need diagnose the pathological changes situation of anorectal wall and surrounding tissue, can introduce the work end of infrared heat scanheads via instrument channel, enter and carry out infrared heat scanning in the anorectal road, output to monitor, the doctor can make diagnosis according to infrared image.
Compared with prior art, the beneficial effects of the utility model are:
The precision height of the infrared resolution rate of present medical infrared imagery technique, and be widely used in a lot of fields, particularly medical field gradually.Anorectal mirror with infrared heat scanheads described in the utility model, with hard anorectal mirror is platform, introducing the infrared heat scanheads enters in the anorectal road, utilize the infrared heat scanheads to do linear and annular moving, the temperature contrast that anorectal parietal vessel blood motion is produced and linearity carried out in the infrared radiation that forms and annular scanning is monitored, to obtain the continuous crosscut scanning imagery in many planes, transfer of data to the infrared heat scanning system main frame that the continuous crosscut scanning in many planes is obtained carries out Flame Image Process then, the three-dimensional blood vessel still image of clear demonstration anorectal provides reliable objective basis for the doctor judges pathological change of anorectal and functional status.In addition, this utility model infrared heat scan process system provides multiple mode of operation, comprises common display pattern and night vision display mode, and the doctor can make correct diagnosis by analyzing and compare the diagnostic image of different display modes.This utility model greatly enriches the diagnostic means of anorectal disease, improves the accuracy of diagnosis effectively.
Description of drawings
Fig. 1 is the system schematic with anorectal mirror of infrared heat scan function of the present utility model.
Fig. 2 a, Fig. 2 b, Fig. 2 c are the surface structure sketch maps of hard anorectal mirror in this utility model (three kinds of forms).
Fig. 3 a, Fig. 3 b, Fig. 3 c are the corresponding end construction sketch maps of going up Fig. 2 a, Fig. 2 b, the described hard anorectal of Fig. 2 c mirror (three kinds of forms).
Fig. 4 is an infrared heat scanheads surface structure sketch map of the present utility model.
Fig. 5 is the work end view of infrared heat scanheads of the present utility model.
Fig. 6 is three groups of infrared facility distribution schematic diagrams in this utility model.
Fig. 7 is the operation method sketch map of the enteroscope system of band infrared heat scanheads of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described in further detail:
As shown in Figure 1, enteroscope system with infrared heat scan function described in the utility model comprises hard anorectal mirror 1 (three forms), cold light source main frame 3, shooting main frame 4 and scope monitor 8, infrared heat scanheads 2, infrared heat scan process system host 5, operation keyboard or hand-held equipment 6, infrared heat scanning system monitor 7.
Fig. 2 a, Fig. 2 b, Fig. 2 c are the surface structure sketch map of the hard anorectal mirror 1 in this utility model.Hard anorectal mirror 1, be divided into following three kinds of forms: first kind of form, shown in Fig. 2 a, described hard anorectal mirror 1 is for adopting the anorectal mirror of electronics ccd optical system, and it comprises hard scope end 11, cold light source joint 12, data connector 13, linear type instrument channel 14, intake tunnel 15 and exhalant canal 16.Second kind of form, shown in Fig. 2 b, described hard anorectal mirror 1 also is the anorectal mirror that adopts electronics ccd optical system, it comprises hard scope end 11, cold light source joint 12, data connector 13, linear type instrument channel 14, with comparing of first kind of form, it does not have intake tunnel 15 and exhalant canal 16. The third form, shown in Fig. 2 c, described hard anorectal mirror 1 is for adopting the anorectal mirror of prism optical system, and it comprises hard scope end 11, cold light source joint 12, eyepiece input 17, linear type instrument channel 14, intake tunnel 15 and exhalant canal 16.The hard scope end 11 of the hard anorectal mirror 1 of above-mentioned three kinds of forms is by the hard material manufacturing, has inflexibility, diameter is smaller or equal to 20mm, end, hard scope end 11 long 300～450mm, the elder generation end need be designed to blunt type to first end for fear of the needs of damage mucosal tissue; The instrument channel 14 of the anorectal mirror of three kinds of forms is more than or equal to 3.0mm, first and the diameter of the intake tunnel 15 of the anorectal mirror of the third form and exhalant canal 16 more than or equal to 1.0mm.
Fig. 3 a, Fig. 3 b, Fig. 3 c are depicted as hard scope end 11 sketch maps described in this utility model.The hard anorectal mirror 1 of first kind of form, shown in Fig. 3 a, the first end 111 of hard anorectal mirror 1 integratedly designed following various piece: optical lens 131, light-conductive optic fibre 121, instrument channel outlet 141, intake tunnel outlet 151 and exhalant canal outlet 161, its instrument channel 14 is a linear type, the internal diameter of this instrument channel 14 is more than or equal to 3.0mm, and described intake tunnel 15 and exhalant canal 16 are positioned at the both sides of scope, and described internal diameter is more than or equal to 1.0mm; The hard anorectal mirror 1 of second kind of form, shown in Fig. 3 b, the first end of described hard anorectal mirror 1 111 is integrated has designed following various piece: optical lens 131, light-conductive optic fibre 121, instrument channel outlet 141, instrument channel 14 also is a linear type, its internal diameter is more than or equal to 3.0mm; The hard anorectal mirror 1 of the third form, shown in Fig. 3 c, the first end 111 of described hard anorectal mirror 1 is integrated has designed following various piece: optical lens 171, light-conductive optic fibre 121, instrument channel outlet 141, intake tunnel outlet 151 and exhalant canal outlet 161, described instrument channel 14 is a linearity, internal diameter is more than or equal to 3.0mm, and its intake tunnel 15 and exhalant canal 16 are positioned at the both sides of scope, and its internal diameter is more than or equal to 1.0mm.The ccd optical system device of the hard anorectal mirror 1 of above-mentioned first kind and second type is at the front end of hard scope end 11, adopt the electronic CCD optical system of diameter more than or equal to the 3.0mm optical lens, its CCD chip adopts≤1/4 "; the CCD of at least 48 universal effect pixels, 100 ° of the angles of view or more than; The hard anorectal mirror 1 of the third type adopts prism optical system, and the diameter of its optical lens is more than or equal to 3.0mm.
Be illustrated in figure 4 as the surface structure sketch map of the infrared heat scanheads 2 described in this utility model.Infrared heat scanheads 2 structures comprise probe work end 21, and operator is 22 and data wire 23.Described probe work end 21 long 500～2000mm, the external diameter of probe work end 21 is smaller or equal to 3.0mm; Described operator comprises gauge tap to 22 design control knobs 221, mode selection switch, inching switch etc.; Described data wire 23 is connected with infrared heat scan process system host 5 by joint.
Be illustrated in figure 5 as the first end of probe 211 structural representations in this utility model.The 211 li designs in first end of popping one's head in have ultrared 212, and ultrared 212 is equipped with infrared facility 213, and infrared facility 213 comprises the infrared light supply emitter, infrared reception camera lens; Infrared light supply emitter and infrared reception camera lens are formed one group of infrared facility 213, and work 212 the insides, end are integrated with 213, three groups of infrared facilitys 213 of three groups of identical infrared facilitys and are mutually 60 degree designs; Ultrared 212 can be rotated by the driving of motor, and does linear and annular moving, thereby does linear and annular scanning (as shown in Figure 6) to being scanned body.
Be illustrated in figure 7 as the operation method sketch map of the enteroscope system of band infrared heat scanheads described in the utility model.The doctor at first requires patient to get calculi position, behind the sterile drape, hard anorectal mirror 1 is entered anorectal road 9 via patient's anus 91, hard anorectal mirror 1 can clearly be observed anorectal road 9 and amplify the image of several times, and can do treatment by the disease in instrument channel 14, intake tunnel 15 and 16 pairs of anorectal roads 9 of exhalant canal and handle; In the time of need diagnosing the pathological changes situation of anorectal wall and surrounding tissue, can be via the work end 21 of instrument channel 14 introducing infrared heat scanheadss 2, enter and carry out infrared heat scanning in the anorectal road 9, output to infrared heat scanning system monitor 7, the doctor can make diagnosis according to infrared image.
This utility model is made described infrared heat scan process main frame 5 as shown in Figure 1, and its guidance panel and operation keyboard or hand-held equipment 6 provide abundant control knob, buttons such as switch, model selection, infrared intensity fine setting, monitor menu.Model selection can be switched different display modes, comprise common display pattern and night vision display mode, the common display pattern is meant the display mode that infrared scan carries out under the irradiation of endoscopic cold light source 3 and infrared light supply, the night vision display mode is meant under the irradiation that does not have endoscopic cold light source and infrared light supply, rely on self different radiant intensity of tissue substance to come imaging, the doctor can obtain the better diagnosis effect of another one angle to the image comparison analysis under two kinds of patterns.
Claims (10)
1. the enteroscope system that has the infrared heat scan function, comprise hard anorectal mirror and the cold light source main frame that is connected with hard anorectal mirror, shooting main frame, scope monitor, it is characterized in that: also be provided with the infrared heat scanning system on the described hard anorectal mirror, described infrared heat scanning system comprises infrared heat scanheads, infrared heat scan process system host and infrared heat scanning system monitor.
2. the enteroscope system with infra-red heat scan function according to claim 1, it is characterized in that: described hard anorectal mirror is for adopting the anorectal mirror of electronics ccd optical system, and it comprises hard scope end, cold light source joint, data connector, at least one linear type instrument channel, intake tunnel and exhalant canal.
3. the enteroscope system with infra-red heat scan function according to claim 1, it is characterized in that: described hard anorectal mirror is for adopting the anorectal mirror of electronics ccd optical system, and it comprises hard scope end, cold light source joint, data connector, at least one linear type instrument channel.
4. the enteroscope system with infrared heat scan function according to claim 1, it is characterized in that: described hard anorectal mirror is for adopting the anorectal mirror of prism optical system, and it comprises hard scope end, cold light source joint, eyepiece input, at least one linear type instrument channel, intake tunnel and exhalant canal.
5. according to each described enteroscope system of claim 2 to 4 with infrared heat scan function, it is characterized in that: described infrared heat scanheads comprises probe work end, operator handle and data wire, described probe work end is passed the linear type instrument channel of anorectal mirror main part and is stretched out from the front end of hard scope end, described data wire is connected with infrared heat scan process system host by joint, and described infrared heat scanning system monitor is connected with infrared heat scan process system host.
6. the enteroscope system with infrared heat scan function according to claim 5, it is characterized in that: the front end of described probe work end is the first end of probe, pop one's head in and be provided with ultrared in the first end, one group of infrared facility is installed in the ultrared at least, and described infrared facility comprises infrared light supply emitter and infrared reception camera lens.
7. the enteroscope system with infrared heat scan function according to claim 6 is characterized in that: the infrared facility of described ultrared is three groups, and these three groups of infrared facilitys are mutually 60 degree designs.
8. the enteroscope system with infra-red heat scan function according to claim 5 is characterized in that: described probe working end minister 500～2000mm, and described probe tip minister degree is less than 50mm, and described probe work outer end diameter is smaller or equal to 3.0mm.
9. the enteroscope system with infra-red heat scan function according to claim 5 is characterized in that: the operator handle of described infrared heat scanheads comprises gauge tap, has the mode selection switch and the inching switch of common display pattern and night vision display mode.
10. the enteroscope system with infra-red heat scan function according to claim 1, it is characterized in that: described infrared heat scan process system host also comprises connected guidance panel, operation keyboard or hand-held equipment, described guidance panel, operation keyboard or hand-held equipment are provided with control knob, shift knob, model selection button, infrared intensity fine adjustment function button and monitor menu button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206512091U CN201899482U (en) | 2010-12-10 | 2010-12-10 | Anorectumoscope system with infrared thermal scanning function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206512091U CN201899482U (en) | 2010-12-10 | 2010-12-10 | Anorectumoscope system with infrared thermal scanning function |
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| Publication Number | Publication Date |
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| CN201899482U true CN201899482U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206512091U Expired - Lifetime CN201899482U (en) | 2010-12-10 | 2010-12-10 | Anorectumoscope system with infrared thermal scanning function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100537A (en) * | 2010-12-10 | 2011-06-22 | 广州宝胆医疗器械科技有限公司 | Anorectal endoscopy system with thermal-infrared scanning function |
| CN102697472A (en) * | 2012-01-18 | 2012-10-03 | 广州宝胆医疗器械科技有限公司 | Wireless protoscope system |
| CN103750812A (en) * | 2011-12-30 | 2014-04-30 | 广州宝胆医疗器械科技有限公司 | Proctoscope system with night vision function |
-
2010
- 2010-12-10 CN CN2010206512091U patent/CN201899482U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100537A (en) * | 2010-12-10 | 2011-06-22 | 广州宝胆医疗器械科技有限公司 | Anorectal endoscopy system with thermal-infrared scanning function |
| WO2012075697A1 (en) * | 2010-12-10 | 2012-06-14 | 广州宝胆医疗器械科技有限公司 | Anal intestinal endoscope system with infrared thermal scanning function |
| CN102100537B (en) * | 2010-12-10 | 2013-01-02 | 广州宝胆医疗器械科技有限公司 | Anorectal endoscopy system with thermal-infrared scanning function |
| CN103750812A (en) * | 2011-12-30 | 2014-04-30 | 广州宝胆医疗器械科技有限公司 | Proctoscope system with night vision function |
| CN102697472A (en) * | 2012-01-18 | 2012-10-03 | 广州宝胆医疗器械科技有限公司 | Wireless protoscope system |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110720 Effective date of abandoning: 20130306 |
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| RGAV | Abandon patent right to avoid regrant |