CN221084371U - Special-shaped tracheal catheter for endoscope - Google Patents
Special-shaped tracheal catheter for endoscope Download PDFInfo
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- CN221084371U CN221084371U CN202322036111.5U CN202322036111U CN221084371U CN 221084371 U CN221084371 U CN 221084371U CN 202322036111 U CN202322036111 U CN 202322036111U CN 221084371 U CN221084371 U CN 221084371U
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- China
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- endotracheal tube
- tracheal catheter
- monitoring pipeline
- filter
- endoscopes
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- 238000012544 monitoring process Methods 0.000 claims abstract description 42
- 238000009423 ventilation Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 28
- 239000000523 sample Substances 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 84
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 42
- 210000002345 respiratory system Anatomy 0.000 abstract description 11
- 206010011409 Cross infection Diseases 0.000 abstract description 8
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 8
- 210000004369 blood Anatomy 0.000 abstract description 6
- 239000008280 blood Substances 0.000 abstract description 6
- 208000004756 Respiratory Insufficiency Diseases 0.000 abstract description 5
- 206010038678 Respiratory depression Diseases 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 4
- 210000001124 body fluid Anatomy 0.000 abstract description 4
- 239000010839 body fluid Substances 0.000 abstract description 4
- 239000001569 carbon dioxide Substances 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000008093 supporting effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 230000028327 secretion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 208000035473 Communicable disease Diseases 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000241 respiratory effect Effects 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000004704 glottis Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004199 lung function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000000932 sedative agent Substances 0.000 description 1
- 230000001624 sedative effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
Abstract
The utility model belongs to the technical field of medical appliances, and discloses a special-shaped tracheal catheter for an endoscope, which comprises a tracheal catheter body, wherein a cuff is arranged on the outer wall of the air outlet end of the tracheal catheter body, a cuff inflation connector is arranged at the other end of the tracheal catheter body, an inflation tube communicated with the cuff is connected to the tracheal catheter body, a high-frequency ventilation pipeline and a CO2 monitoring pipeline are also connected to the tracheal catheter body, and a filter is arranged on the CO2 monitoring pipeline; the cuff is arranged at the air outlet end of the tracheal catheter body, so that the tracheal catheter is smooth and has small damage when being placed, the smoothness of an upper respiratory tract can be effectively ensured by means of the local supporting function of the cuff, the PET CO2 of a patient is conveniently and timely monitored by arranging the CO2 monitoring pipeline, the risks of respiratory depression and carbon dioxide accumulation of the patient are conveniently and timely eliminated, and pollutants such as body fluid, blood and bacteria in gas collected by the CO2 monitoring pipeline are conveniently filtered by arranging the filter, so that cross infection is avoided.
Description
Technical Field
The utility model relates to a special-shaped tracheal catheter for an endoscope, and belongs to the technical field of medical appliances.
Background
In the current painless bronchofiberscope examination process, the anesthesia method generally comprises the steps of administering sedative and a small amount of analgesic to a patient, keeping spontaneous breathing of the patient, inhaling oxygen through a nasal catheter, and enabling an operator to enter the tracheal for diagnosis and treatment through the nose of the bronchofiberscope. Because the outpatient bronchofiberscope examination and the treated patient often have poor lung function, sputum, blood and the like are required to be sucked in the diagnosis and treatment process after anesthesia, oxygen in the lung is sucked at the same time of sucking secretion, at the moment, the patient often has the risks of respiratory depression and carbon dioxide accumulation because of oxygen suction of a nasal catheter, so that an operator has to pause operation, input oxygen into the lung of the patient through a bronchofiberscope suction channel, and the next diagnosis and treatment can be performed after the oxygen saturation is normal.
Chinese patent CN202220981304.0 discloses a high-frequency jet ventilation tracheal catheter, comprising a tracheal catheter body, a tracheal catheter cuff, a cuff inflation head and a high-frequency jet catheter; the high-frequency jet catheter is attached to the outer side wall of the tracheal catheter body, the tracheal catheter cuff is positioned between the tail end of the tracheal catheter body and the tail end of the high-frequency jet catheter, and the head end of the high-frequency jet catheter can be connected with the high-frequency jet respirator and ventilate into the lung on the non-bleeding side of the patient through the tail end of the high-frequency jet catheter. Although this patent can ensure oxygen summation for the patient, the high frequency jet ventilation endotracheal tube of this patent has the following drawbacks: 1, the tracheal catheter of the patent does not have a respiratory end CO2 monitoring function, and can not identify respiratory depression and carbon dioxide accumulation of a patient in time, and 2, the bronchoscope channel of the tracheal catheter body of the patent does not have an isolation function, and secretion possibly generated by respiratory tract due to choking splashes to operators and an operation environment, so that cross infection risks are caused.
Therefore, there is a need for an endoscopic special-shaped tracheal catheter that facilitates monitoring of CO2 at the end of patient breath, and that provides isolation to the bronchofiberscope channel, and that avoids splattering of secretions of the respiratory tract, which may be generated by choking, to the operator and the operating environment.
Disclosure of utility model
The utility model aims to provide a special-shaped tracheal catheter for an endoscope.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an endoscope is with abnormal shape endotracheal tube, includes the endotracheal tube body, the one end of endotracheal tube body is the air inlet end, the other end is the gas outlet end, be equipped with the cover bag on the outer wall that the endotracheal tube body is close to the gas outlet end, be equipped with the cover bag on the one end that is close to the air inlet end and aerify the joint, be connected with the gas tube with the cover bag intercommunication on the outer wall of endotracheal tube body, the one end that the cover bag was kept away from to the gas tube body outer wall to be linked together with the cover bag and aerify the joint, still be connected with high frequency ventilation tube and CO2 monitoring pipeline on the outer wall of endotracheal tube body, be equipped with the filter on the CO2 monitoring pipeline, set up isolation mechanism in the air inlet end of endotracheal tube body.
Preferably, the isolation mechanism is a funnel-shaped elastic sealing ring highly connected inside the air inlet end.
Preferably, the tip of the funnel-shaped elastic sealing ring is provided with an elastic through hole, and the inner wall of the funnel-shaped elastic sealing ring and the inner wall of the elastic through hole are smooth surfaces.
Preferably, the funnel-shaped elastic sealing ring is made of self-lubricating high-elasticity rubber added with graphite, graphite fluoride or polytetrafluoroethylene.
Preferably, the filter comprises a shell fixedly connected and communicated with the CO2 monitoring pipeline and filter cotton filled in the shell.
Preferably, the inflation tube, the high-frequency ventilation pipeline and the CO2 monitoring pipeline are all independent pipelines.
Preferably, a temperature probe is further arranged in the CO2 monitoring pipeline, one end of the temperature probe penetrates through the filter and extends to a port of one end of the CO2 monitoring pipeline, which is close to the gas outlet end of the tracheal catheter body, and the other end of the temperature probe protrudes out of the CO2 monitoring pipeline and is connected with the matched indicating equipment.
Preferably, an elastic rubber sealing block coaxially arranged with the filter is arranged in the filter, a conical groove is formed in one side, far away from the air outlet end, of the elastic rubber sealing block, the top end of the conical groove is close to the air outlet end, a through hole axially penetrating through the elastic rubber sealing block is formed, and the aperture of the through hole is larger than 0mm and smaller than 2mm.
Preferably, the inner wall of the conical groove and the inner wall of the through hole are smooth surfaces, and the elastic rubber sealing block is made of self-lubricating high-elasticity rubber added with graphite, graphite fluoride or polytetrafluoroethylene.
Advantageous effects
The special-shaped tracheal catheter for the endoscope is characterized in that the cuff is arranged at the air outlet end of the tracheal catheter body, so that the tracheal catheter is smooth and has small damage when being placed, and can be accurately positioned at the tongue root part of a throat after being placed, the air outlet of the tracheal catheter is prevented from being blocked by the backward falling tongue root by means of the local supporting function of the cuff, the smoothness of the upper respiratory tract can be effectively ensured, effective oxygen supply and auxiliary ventilation treatment can be carried out, the funnel-shaped elastic sealing ring is arranged, the effect of wrapping and isolating the bronchoscope placed in the tracheal catheter body is conveniently achieved, secretion possibly generated by choking of the respiratory tract can be prevented from splashing to operators and operating environments, the special-shaped tracheal catheter has good isolation and protection effects on respiratory infectious diseases, the PET CO2 of a patient can be conveniently and timely monitored, respiratory depression conditions can be rapidly and sharply identified, the series of complications such as hypoxia can be avoided, and pollutants such as body fluid, blood, bacteria and the like in the gas collected by the CO2 monitoring pipeline can be conveniently filtered by arranging the filter on the CO2 monitoring pipeline, and cross infection can be avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a funnel-shaped elastic seal ring according to the present utility model;
FIG. 3 is a cross-sectional view of a filter according to a third embodiment of the utility model;
FIG. 4 is a schematic side sectional view of a filter according to a third embodiment of the present utility model;
FIG. 5 is a schematic view showing a state where a temperature probe penetrates an elastic rubber sealing block of a filter in a third embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a fourth embodiment of the present utility model.
In the figure: 1. an endotracheal tube body; 2. an air inlet end; 3. an air outlet end; 4. a cuff; 5. a cuff inflation connector; 6. an inflation tube; 7. a high frequency ventilation duct; 8. CO2 monitoring of the pipeline; 9. a filter; 10. a funnel-shaped elastic sealing ring; 11. an elastic through hole; 12. a housing; 13. filtering cotton; 14. a temperature probe; 15. an elastic rubber sealing block; 16. a conical groove; 17. a through hole; 18. a temperature sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
as shown in fig. 1-2, the present utility model provides a technical solution: the utility model provides an irregular tracheal catheter for endoscope, which comprises a tracheal catheter body 1, tracheal catheter body 1 adopts medical plastic material to make, have certain bendability, be convenient for adapt to patient's respiratory tract, tracheal catheter body 1's one end is air inlet end 2, the other end is air outlet end 3, set up isolation mechanism in tracheal catheter body 1's the air inlet end 2, isolation mechanism is the funnel-shaped elastic seal ring 10 of fixed connection in air inlet end 2 inside, funnel-shaped elastic seal ring 10 and air inlet end 2 coaxial arrangement, elastic through-hole 11 has been seted up to funnel-shaped elastic seal ring 10's pointed end, funnel-shaped elastic seal ring 10's inner wall and elastic through-hole 11's inner wall are smooth surface, funnel-shaped elastic seal ring 10 is by adding graphite, fluoridized graphite or polytetrafluoroethylene's self-lubricating high-elasticity rubber, the bronchofiberscope which is convenient to be oppositely placed into the tracheal catheter body 1 plays a wrapping and isolating role, secretion which is possibly generated by respiratory tract choking and cough can be prevented from splashing to operators and operation environments, the bronchofiberscope has good isolating and protecting effects in the treatment of patients with respiratory infectious diseases such as new crowns, SASS and the like, the outer wall of the tracheal catheter body 1, which is close to the air outlet end 3, is provided with a cuff 4, one end, which is close to the air inlet end 2, is provided with a cuff inflation connector 5, the outer wall of the tracheal catheter body 1 is connected with an inflation tube 6 which is communicated with the cuff 4, one end, which is far away from the cuff 4, protrudes out of the outer wall of the tracheal catheter body 1 and is communicated with the cuff inflation connector 5, the cuff 4 is inflated and deflated through the cuff inflation connector 5, the outer wall of the tracheal catheter body 1 is also connected with a high-frequency ventilation tube 7 and a CO2 monitoring tube 8, one end, which is far away from the air outlet end 3, protrudes out of the tracheal catheter body 1, and be linked together with the high frequency jet ventilator, CO2 monitoring pipeline 8 is kept away from the outer wall of tracheal catheter body 1 to be connected with the end carbon dioxide monitoring devices that breathes in vitro, be equipped with filter 9 on the CO2 monitoring pipeline 8, be convenient for filter body fluid, blood, pollutant such as bacterium in the gas that gathers through CO2 monitoring pipeline 8, avoid cross infection, filter 9 includes with CO2 monitoring pipeline 8 fixed connection and the casing 12 of intercommunication and the filter cotton 13 of packing in casing 12, gas tube 6, high frequency ventilation pipeline 7 and CO2 monitoring pipeline 8 are the independent pipeline.
When the tracheal catheter is used, a patient is intubated in a general anesthesia state, firstly, the cuff 4 is deflated, then the air inlet end 2 and the air outlet end 3 of the tracheal catheter body 1 are held by hands and inserted through nostrils (left or right), when the air outlet end 3 reaches the lower part of the glottis, the cuff 4 is inflated, the air outlet end 3 is effectively supported and kept in a state of being not easy to be blocked, the air outlet end 3 of the ventilation tube cannot be covered by the root part of the tongue which is fallen back, an effective unobstructed air passage can be established, then a bronchoscope is inserted, the bronchoscope is checked, the bronchoscope inserted into the tracheal catheter body 1 is wrapped and isolated by the funnel-shaped elastic sealing ring 10, secretions possibly generated by respiratory tract choking are prevented from splashing to operators and operating environments, cross infection is avoided, the CO2 of the patient is conveniently monitored in time, the respiratory depression condition is quickly and sensitively identified, the patient is prevented from generating series of complications such as sharp and the like, the CO2 monitoring pipeline 8 is conveniently provided with a filter 9, and cross infection such as bacterial contamination and blood and the like in the CO2 monitoring pipeline 8 is conveniently prevented from being polluted by the cross infection; the special-shaped tracheal catheter for the endoscope is characterized in that the cuff is arranged at the air outlet end of the tracheal catheter body, so that the tracheal catheter is smooth and has small damage when being placed, and can be accurately positioned at the tongue root part of the throat after being placed, the air outlet of the tracheal catheter is prevented from being blocked by the back-falling tongue root by means of the local supporting effect of the seesaw and the cuff, the smoothness of the upper respiratory tract can be effectively ensured, effective oxygen supply and auxiliary ventilation treatment can be carried out, the funnel-shaped elastic sealing ring is arranged, the effect of wrapping and isolating the bronchoscope placed in the tracheal catheter body is facilitated, secretion which possibly occurs due to respiratory tract choking can be prevented from splashing to operators and operating environments, the special-shaped tracheal catheter has good isolation and protection effects on treatment of patients with infectious diseases of respiratory systems such as new crowns, SASS and the like, the CO2 of the patients can be conveniently monitored in time by arranging the PET 2 monitoring pipeline, so that the occurrence of oxygen deficiency and other serial complications of the patients can be avoided, and the filter is conveniently arranged on the CO2 monitoring pipeline, body fluid pollution, the bacteria in the gas passing through the CO2 monitoring pipeline, the blood can be conveniently filtered, and the cross infection can be avoided.
Embodiment two:
The utility model provides an endoscope is with abnormal shape endotracheal tube, including endotracheal tube body 1, be connected with high frequency air pipe 7 and CO2 monitoring pipeline 8 on the outer wall of endotracheal tube body 1, be equipped with filter 9 on the CO2 monitoring pipeline 8, still be equipped with temperature probe 14 in the CO2 monitoring pipeline 8, temperature probe 14's one end runs through filter 9 and extends to the port department that CO2 monitoring pipeline 8 is close to the one end of the gas outlet end 3 of endotracheal tube body 1, temperature probe 14's the other end stretches out CO2 monitoring pipeline 8 to be connected with assorted indicating device, other structures are the same as embodiment one.
Embodiment III:
As shown in fig. 3-5, a special-shaped tracheal catheter for endoscope comprises a tracheal catheter body 1, a high-frequency ventilation pipeline 7 and a CO2 monitoring pipeline 8 are connected to the outer wall of the tracheal catheter body 1, a filter 9 is arranged on the CO2 monitoring pipeline 8, an elastic rubber sealing block 15 coaxially arranged with the filter 9 is arranged in the filter 9, a conical groove 16 is formed in one side, away from the air outlet end 3 of the tracheal catheter body 1, of the elastic rubber sealing block 15, the top end of the conical groove 16 is close to the air outlet end 3 of the tracheal catheter body 1, a through hole 17 axially penetrating through the elastic rubber sealing block 15 is formed, the aperture of the through hole 17 is larger than 0 and smaller than 2mm, the inner wall of the conical groove 16 and the inner wall of the through hole 17 are smooth surfaces, the elastic rubber sealing block 15 is made of self-lubricating high-elasticity rubber added with graphite, graphite fluoride or polytetrafluoroethylene, and other structures are the same as those in the first or second embodiment.
Embodiment four:
As shown in fig. 6, a special-shaped tracheal catheter for endoscope comprises a tracheal catheter body 1, wherein a high-frequency ventilation pipeline 7 and a CO2 monitoring pipeline 8 are connected to the outer wall of the tracheal catheter body 1, a cuff 4 is not arranged on the tracheal catheter body 1, a temperature sensor 18 is arranged at one end, close to a glottis, of the tracheal catheter body 1, and other structures are the same as those of the first or second embodiment.
Alternatively, the elastic rubber sealing block 15 may be replaced with a funnel-shaped elastic sealing ring 10.
Claims (9)
1. The utility model provides an endoscope is with abnormal shape endotracheal tube, includes endotracheal tube body (1), its characterized in that: the one end of endotracheal tube body (1) is air inlet end (2), the other end is gas outlet end (3), be equipped with on the outer wall that endotracheal tube body (1) is close to gas outlet end (3) cover bag (4), be equipped with cover bag inflation connector (5) near the one end of air inlet end (2), be connected with on the outer wall of endotracheal tube body (1) with cover bag (4) intercommunication's gas tube (6), the one end that cover bag (4) was kept away from to gas tube (6) stretches out endotracheal tube body (1) outer wall to be linked together with cover bag inflation connector (5), still be connected with high frequency air pipe (7) and CO2 monitoring pipeline (8) on the outer wall of endotracheal tube body (1), be equipped with filter (9) on CO2 monitoring pipeline (8), set up isolation mechanism in air inlet end (2) of endotracheal tube body (1).
2. A profiled endotracheal tube for endoscopes as claimed in claim 1, wherein: the isolation mechanism is a funnel-shaped elastic sealing ring (10) arranged in the air inlet end (2).
3. A profiled endotracheal tube for endoscopes as claimed in claim 2, wherein: the tip of the funnel-shaped elastic sealing ring (10) is provided with an elastic through hole (11), and the inner wall of the funnel-shaped elastic sealing ring (10) and the inner wall of the elastic through hole (11) are smooth surfaces.
4. A profiled endotracheal tube for endoscopes as claimed in claim 2, wherein: the funnel-shaped elastic sealing ring (10) is made of self-lubricating high-elasticity rubber added with graphite, graphite fluoride or polytetrafluoroethylene.
5. A profiled endotracheal tube for endoscopes as claimed in claim 1, wherein: the filter (9) comprises a shell (12) fixedly connected and communicated with the CO2 monitoring pipeline (8) and filter cotton (13) filled in the shell (12).
6. A profiled endotracheal tube for endoscopes as claimed in claim 1, wherein: the inflation tube (6), the high-frequency ventilation pipeline (7) and the CO2 monitoring pipeline (8) are independent pipelines.
7. A profiled endotracheal tube for endoscopes as claimed in claim 1, wherein: the CO2 monitoring pipeline (8) is internally provided with a temperature probe (14), one end of the temperature probe (14) penetrates through the filter (9) and extends to a port of one end, close to the air outlet end (3), of the CO2 monitoring pipeline (8), and the other end of the temperature probe (14) protrudes out of the CO2 monitoring pipeline (8) and is connected with matched indicating equipment.
8. A profiled endotracheal tube for endoscopes as claimed in claim 1, wherein: be equipped with in filter (9) with the coaxial elastic rubber sealing piece (15) that set up of filter (9), conical groove (16) have been seted up to one side that gas outlet end (3) were kept away from to elastic rubber sealing piece (15), the top of conical groove (16) is close to gas outlet end (3) to be equipped with through-hole (17) that the axial runs through elastic rubber sealing piece (15), the aperture of through-hole (17) is greater than 0, is less than 2mm.
9. A profiled endotracheal tube for endoscopes as claimed in claim 8, wherein: the inner walls of the conical grooves (16) and the inner walls of the through holes (17) are smooth surfaces, and the elastic rubber sealing blocks (15) are made of self-lubricating high-elasticity rubber added with graphite, graphite fluoride or polytetrafluoroethylene.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221084371U true CN221084371U (en) | 2024-06-07 |
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