CN114081428B - Open-close type device for assisting bronchoscope in measuring inner diameter of trachea - Google Patents
Open-close type device for assisting bronchoscope in measuring inner diameter of trachea Download PDFInfo
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- CN114081428B CN114081428B CN202111611372.4A CN202111611372A CN114081428B CN 114081428 B CN114081428 B CN 114081428B CN 202111611372 A CN202111611372 A CN 202111611372A CN 114081428 B CN114081428 B CN 114081428B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
- A61B1/2676—Bronchoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/07—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1072—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring distances on the body, e.g. measuring length, height or thickness
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Abstract
The invention discloses an opening-closing device for assisting a bronchoscope in measuring the inner diameter of a trachea, which comprises an external connecting rod, a rotating sleeve, a fixed front seat, a telescopic rod, a contracting rear seat and two opposite opening-closing supports, wherein one end of the external connecting rod is led out of the body, the other end of the external connecting rod is connected with one end of the telescopic rod and sleeved with the rotating sleeve, one end of the telescopic rod is sleeved with the fixed front seat, the other end of the telescopic rod is fixed in the contracting rear seat, the rotating sleeve is connected with the fixed front seat, the two ends of the opening-closing supports are respectively connected with the fixed front seat and the contracting rear seat, and the opening-closing supports are provided with optical fiber sensors. According to the opening-closing type device for assisting the bronchoscope in measuring the inner diameter of the trachea, which is disclosed by the invention, the external connecting rod drives the telescopic rod to contract, the two opening-closing brackets are opened until the optical fiber sensor is contacted with the bronchus or the inner wall of the trachea, the inner diameter of the trachea is judged according to the moving distance of the external connecting rod and the moving distance of the optical fiber sensor, and the inner diameter measuring result is more accurate.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an open-close type device for assisting a bronchoscope in measuring the inner diameter of a trachea.
Background
The inner diameter measuring instrument of the trachea is used for measuring the inner diameters of all sections of tracheas and bronchi in a human body, and plays a vital role in clinical interventional therapy in the airways. Interventional therapy in an airway is one of important means for treatment of the respiratory system at present, and the inner diameter of a bronchus and a bronchus in a patient can be accurately measured by means of an inner diameter of the trachea measuring instrument. The conventional trachea inner diameter measuring instrument is provided with a spiral telescopic mechanism to help measure the inner diameters of tracheas and bronchi with different diameters, and the trachea inner diameter measuring method is a fixed saccule or a cross measuring scale with fixed size, but can only measure the approximate trachea inner diameter of a certain part, so that the trachea inner diameter measuring instrument is not beneficial to more accurately and practically carrying out trachea interventional therapy.
Disclosure of Invention
The invention aims to provide an open-close type device for assisting a bronchoscope to measure the inner diameter of a trachea, so as to solve the problem that the inner diameter of the trachea and the bronchus is not accurate enough to be measured by the inner diameter of the trachea measuring instrument.
In order to achieve the purpose, the invention provides an opening and closing device for assisting a bronchoscope in measuring the inner diameter of a trachea, which comprises an external connecting rod, a rotating sleeve, a fixed front seat, a telescopic rod, a contracting rear seat and two opposite opening and closing supports, wherein one end of the external connecting rod is led out of the body, the other end of the external connecting rod is connected with one end of the telescopic rod and sleeved with the rotating sleeve, one end of the telescopic rod is sleeved with the fixed front seat, the other end of the telescopic rod is fixed in the contracting rear seat, the rotating sleeve is connected with the fixed front seat, two ends of the two opening and closing supports are respectively connected with the fixed front seat and the contracting rear seat, and optical fiber sensors are arranged on the two opening and closing supports.
Preferably, the two opening and closing supports comprise a front opening and closing support and a rear opening and closing support, one end of the front opening and closing support is connected with the fixed front seat, the other end of the front opening and closing support is connected with one end of the rear opening and closing support through a revolute pair, the other end of the rear opening and closing support is connected with the retracted rear seat, the revolute pair is provided with the optical fiber sensor, and the optical fiber sensor comprises a detection end, an optical fiber, a modulator and a detector.
Preferably, the fixed front seat and the retracted rear seat are both provided with a clamping groove, one end of the front opening-closing support is inserted into the clamping groove of the fixed front seat, and the other end of the rear opening-closing support is inserted into the clamping groove of the retracted rear seat.
Preferably, a through hole is formed in the middle of the fixed front seat, one end of the telescopic rod is fixed in the through hole, a fixing hole is formed in the middle of the retracted rear seat, and the other end of the telescopic rod is fixed in the fixing hole.
Preferably, the outer wall of the fixed front seat and the outer wall of the retracted rear seat are both in threaded connection with fastening sleeves.
Therefore, according to the open-close type device for assisting the bronchoscope in measuring the inner diameter of the trachea, which is disclosed by the invention, the external connecting rod drives the telescopic rod to contract, the two open-close brackets are opened until the optical fiber sensor is in contact with the bronchus or the inner wall of the trachea, the inner diameter of the trachea is judged according to the moving distance of the external connecting rod and the moving distance of the optical fiber sensor, and the inner diameter measurement result is more accurate.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic view of an embodiment of the open-close device for assisting a bronchoscope in measuring the inner diameter of a trachea according to the present invention;
FIG. 2 is an enlarged view of an embodiment A of the open and close device for assisting a bronchoscope in measuring the inner diameter of a trachea according to the present invention;
FIG. 3 is a view of the mounting of the fixed front mount and the retractable bracket of an embodiment of the retractable device for assisting bronchoscopy in measuring the inner diameter of the trachea of the subject invention;
FIG. 4 is a schematic diagram of an embodiment of the open/close stand of the open/close device for assisting a bronchoscope in measuring the inner diameter of a trachea according to the present invention;
FIG. 5 is an enlarged view of an embodiment of the open and close device for assisting a bronchoscope in measuring the inner diameter of a trachea;
FIG. 6 is a schematic view of a fixed front mount of an embodiment of an open-close device for assisting a bronchoscope in measuring the inner diameter of a trachea according to the present invention;
FIG. 7 is a schematic diagram of an embodiment of the open-close device for assisting a bronchoscope in measuring the inner diameter of a trachea according to the present invention;
fig. 8 is a graph of the function of the compliance of the open-close bracket and the external connecting rod of the open-close device for assisting the bronchoscope in measuring the inner diameter of the trachea.
In the figure: 1. an external connecting rod; 2. rotating the sleeve; 3. fixing a front seat; 4. opening and closing the bracket; 5. a telescopic rod; 6. fastening sleeves; 7. retracting the rear seat; 8. a card slot; 9. a through hole; 10. a fixing hole; 401. a front opening and closing bracket; 402. the bracket is opened and closed at the back; 403. and a revolute pair.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Embodiments of the present invention will be further described with reference to the accompanying drawings. As shown in fig. 1-6, an open-close type device for assisting bronchoscope to measure the inner diameter of a trachea comprises an external connecting rod 1, a rotating sleeve 2, a fixed front seat 3, a telescopic rod 5, a contraction rear seat 7 and two opposite open-close brackets 4, wherein the two open-close brackets 4 are distributed for 180 degrees, one end of the external connecting rod 1 is led to the outside of the body, the other end of the external connecting rod 1 is connected with one end of the telescopic rod 5 and sleeved with the rotating sleeve 2, one end of the telescopic rod 5 is sleeved with the fixed front seat 3, the other end of the telescopic rod 5 is fixed in the contraction rear seat 7, the rotating sleeve 2 is connected with the fixed front seat 3, the rotating sleeve 2 is mainly used for fixing the whole open-close type device at a proper position (without influencing the use of the bronchoscope), two ends of the two open-close brackets 4 are respectively connected with the fixed front seat 3 and the contraction rear seat 7, and optical fiber sensors are arranged on the two open-close brackets 4. External connecting rod 1 and telescopic link 5 can be structure as an organic whole, also can be the split body mechanism that external connecting rod 1 and telescopic link 5 are connected, when measuring the trachea internal diameter, the pulling is located external connecting rod 1, external connecting rod 1 drives the telescopic link 5 shrink this moment, and then shrink back seat 7 and remove to the direction of rotating sleeve 2, two support 4 that open and shut keep away from each other, contact with the trachea inner wall until optical fiber sensor, stop pulling external connecting rod 1, utilize the distance that external connecting rod 1 removed and two corresponding relation of the distance of expansion between the support 4 that opens and shuts, can derive tracheal internal diameter. It should be noted that optical fiber sensor is a device commonly used in medical operation, optical fiber sensor includes the sense terminal, optic fibre, modulator and detector, the sense terminal is fixed in on the revolute pair 403, outwards move when external connecting rod 1 drives the support 4 that opens and shuts and outwards expand, expand when the sense terminal contacts tracheal inner wall, the sense terminal transmits the signal for modulator and detector in proper order through optic fibre, if for external connecting rod 1 of mechanical device pulling this moment, accessible controller links detector and mechanical device electricity, according to the sense terminal signal that the detector detected, opening and closing of controller adjustment mechanical device, if for external pull rod of manual pulling, can stop pulling external connecting rod 1 according to the signal that the detector shows.
Two supports 4 that open and shut are connected with fixed front stall 3 including preceding support 401 and the back support 402 that opens and shuts of opening and shutting behind the preceding support 401, and the preceding one end that opens and shuts support 401 and the one end that opens and shuts support 402 after are connected through revolute pair 403, and the other end that opens and shuts support 402 after is connected with shrink back seat 7, is provided with optical fiber sensor on the revolute pair 403, and optical fiber sensor includes sense terminal, optic fibre, modulator and detector. When the external connecting rod 1 is pulled, the revolute pair 403 between the front opening and closing bracket 401 and the rear opening and closing bracket 402 starts to rotate relatively and expands outwards along the axial direction until the optical fiber sensor on the revolute pair 403 contacts with the inner wall of the trachea, the external connecting rod 1 stops being pulled, the distance traveled by the optical fiber sensor from the initial position to the end position and the moving distance of the external connecting rod 1 are in the relation of two right-angle sides under the condition that the hypotenuse of a right triangle is fixed, as shown in fig. 7-8, the relation between the inner diameter of the measured trachea and the moving distance of the external connecting rod 1 is c2= a2 + b2, wherein a is the inner diameter of the measured trachea, b is the moving distance of the external connecting rod 1, c is the length of the front opening and closing bracket 401 or the rear opening and closing bracket 402, and the length of the opening and closing bracket 4 is fixed, so that the function relation between the inner diameter of the measured trachea and the moving distance of the external connecting rod 1 is a hyperbolic curve positioned in a first quadrant. The data corresponding to the distance that a group of external connecting rods 1 are pulled out and the inner diameter of the measured air pipe are illustrated in table 1.
TABLE 1 corresponding data table of the distance pulled out by the external connecting rod and the inner diameter of the trachea
| a/mm | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 |
| b/mm | 14 | 13.86 | 13.42 | 12.65 | 11.49 | 9.80 | 7.21 | 0 |
All seted up draw-in groove 8 on fixed front stall 3 and the shrink back seat 7, the one end of preceding support 401 that opens and shuts is pegged graft into the draw-in groove 8 of fixed front stall 3, the other end of the support 402 that opens and shuts of back is pegged graft into the draw-in groove 8 of shrink back seat 7, draw-in groove 8 is for annular distribution on fixed front stall 3 and shrink back seat 7, the bar groove has been seted up to the side of fixed front stall 3 and shrink back seat 7, the support 401 that opens and shuts before being convenient for is pegged graft into fixed front stall 3 and after open and shut support 402 and peg graft into the shrink back seat 7. The outer wall of the fixed front seat 3 and the outer wall of the retractable rear seat 7 are in threaded connection with fastening sleeves 6, so that the cooperation between the fixed front seat 3 and the front opening and closing support 401 and between the retractable rear seat 7 and the rear opening and closing support 402 is more compact. Through-hole 9 has been seted up at the middle part of fixed front seat 3, and the one end of telescopic link 5 is fixed in through-hole 9, and fixed orifices 10 have been seted up at the middle part of shrink back seat 7, and the other end of telescopic link 5 is fixed in fixed orifices 10.
The specific implementation process of the invention is as follows: the method comprises the steps of firstly conveying an opening-closing device into an air pipe, stopping moving at a position where the inner diameter of the air pipe needs to be measured, then fixing a rotating sleeve 2, pulling an external connecting rod 1 to move outwards by using a manual or mechanical device, then contracting a telescopic rod 5 to drive a contracted rear seat 7 to move in the same direction as the movement direction of the external connecting rod 1, rotating a front opening-closing support 401 and a rear opening-closing support around a rotating pair 403 under the extrusion of the fixed front seat 3 and the contracted rear seat 7 to enable the opening-closing support 4 to expand outwards until an optical fiber sensor is contacted with the inner wall of the air pipe, transmitting a signal to an external detector by a light source through optical fibers, stopping pulling the external connecting rod 1, deducing the inner diameter of the air pipe according to the relation between the distance traveled by the optical fiber sensor from an initial position to an end position and the moving distance of the external connecting rod 1, finally pushing the external connecting rod 1 inwards until the opening-closing support 4 is contacted with the telescopic rod 5, moving the opening-closing device to the next air pipe needing to be measured, and carrying out the next test process.
Therefore, according to the open-close type device for assisting the bronchoscope in measuring the inner diameter of the trachea, which is disclosed by the invention, the external connecting rod drives the telescopic rod to contract, the two open-close brackets are opened until the optical fiber sensor is in contact with the bronchus or the inner wall of the trachea, the inner diameter of the trachea is judged according to the moving distance of the external connecting rod and the moving distance of the optical fiber sensor, and the inner diameter measurement result is more accurate.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides an open-close type device of supplementary bronchoscope measurement trachea internal diameter which characterized in that: the retractable type medical instrument is characterized by comprising an external connecting rod, a rotating sleeve, a fixed front seat, a telescopic rod, a retractable rear seat and two opposite opening and closing supports, wherein one end of the external connecting rod is led out of the body, the other end of the external connecting rod is connected with one end of the telescopic rod and sleeved with the rotating sleeve, one end of the telescopic rod is sleeved with the fixed front seat, the other end of the telescopic rod is fixed in the retractable rear seat, the rotating sleeve is connected with the fixed front seat, the two ends of the opening and closing supports are respectively connected with the fixed front seat and the retractable rear seat, and an optical fiber sensor is arranged on the opening and closing supports;
the retractable support comprises a front retractable support and a rear retractable support, one end of the front retractable support is connected with the fixed front seat, the other end of the front retractable support is connected with one end of the rear retractable support through a revolute pair, the other end of the rear retractable support is connected with the retracted rear seat, and the revolute pair is provided with the optical fiber sensor.
2. The open-close type device for assisting the bronchoscope in measuring the inner diameter of the trachea according to claim 1, wherein: clamping grooves are formed in the fixed front seat and the contraction rear seat, one end of the front opening and closing support is inserted into the clamping groove of the fixed front seat, and the other end of the rear opening and closing support is inserted into the clamping groove of the contraction rear seat.
3. The open-close type device for assisting the bronchoscope in measuring the inner diameter of the trachea according to claim 1, wherein: the middle part of the fixed front seat is provided with a through hole, one end of the telescopic rod is fixed in the through hole, the middle part of the contracted rear seat is provided with a fixed hole, and the other end of the telescopic rod is fixed in the fixed hole.
4. The open-close type device for assisting bronchoscopy in measuring the inner diameter of a trachea according to claim 2, wherein: the outer wall of the fixed front seat and the outer wall of the retracted rear seat are both in threaded connection with fastening sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111611372.4A CN114081428B (en) | 2021-12-27 | 2021-12-27 | Open-close type device for assisting bronchoscope in measuring inner diameter of trachea |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111611372.4A CN114081428B (en) | 2021-12-27 | 2021-12-27 | Open-close type device for assisting bronchoscope in measuring inner diameter of trachea |
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| CN114081428A CN114081428A (en) | 2022-02-25 |
| CN114081428B true CN114081428B (en) | 2023-01-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008146893A1 (en) * | 2007-05-25 | 2008-12-04 | Senko Medical Instrument Manufacturing Co., Ltd. | Endotracheal tube insertion assist instrument |
| CN202051707U (en) * | 2011-05-04 | 2011-11-30 | 马利军 | Bronchus inner-diameter measurement device |
| CN113331823A (en) * | 2021-07-06 | 2021-09-03 | 宫蓓蕾 | Tool and method for detecting inner diameter of trachea |
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