CN111297313A - Human body insertion assembly and nasal endoscope - Google Patents
Human body insertion assembly and nasal endoscope Download PDFInfo
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- CN111297313A CN111297313A CN202010135996.2A CN202010135996A CN111297313A CN 111297313 A CN111297313 A CN 111297313A CN 202010135996 A CN202010135996 A CN 202010135996A CN 111297313 A CN111297313 A CN 111297313A
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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
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
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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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00105—Constructional details of the endoscope body characterised by modular construction
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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
- A61B1/00131—Accessories for endoscopes
- A61B1/00137—End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs
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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
- A61B1/012—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 characterised by internal passages or accessories therefor
- A61B1/015—Control of fluid supply or evacuation
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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
- A61B1/012—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 characterised by internal passages or accessories therefor
- A61B1/018—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 characterised by internal passages or accessories therefor for receiving instruments
-
- 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
- A61B1/04—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 combined with photographic or television appliances
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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
-
- 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
- A61B1/233—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 nose, i.e. nasoscopes, e.g. testing of patency of Eustachian tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
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- Veterinary Medicine (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
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- Radiology & Medical Imaging (AREA)
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- Otolaryngology (AREA)
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- Endoscopes (AREA)
Abstract
The present invention relates to a human body insertion set, comprising: an outer sheath, an inner sheath, and an endoscope. The outer sheath includes: the sheath positioning sleeve, the constant-radius sheath pipe and the guide elbow are sequentially connected; the inner sheath includes: the inner sheath positioning sleeve, the straight sheath pipe and the flexible elbow are sequentially connected; the inner sheath positioning sleeve is slidably arranged through the outer sheath positioning sleeve; an endoscope includes: the lens body, the hard lens body, the soft lens body and the objective lens are connected in sequence; the endoscope further comprises: the flexible image optical fiber and the flexible lighting optical fiber sequentially penetrate through the lens body, the hard lens body and the soft lens body. The invention also provides a nasal endoscope. The invention constructs a flexible optical system design, realizes the control of the orientation angle of the flexible elbow of the inner sheath tube by matching the outer sheath tube and the inner sheath tube and adjusting the insertion depth of the inner sheath tube on the outer sheath tube, and the objective lens is connected to the soft lens body and extends in the appointed direction under the guidance of the flexible elbow, thereby adapting to the same-shaped curved cavity channel in the nasal cavity.
Description
Technical Field
The invention relates to the technical field of medical instrument design, in particular to a human body insertion assembly and an endoscope.
Background
The endoscope is a detection instrument which is widely applied in medical treatment, enters a human body through an oral cavity or other pore passages, and further observes the pathological changes of a patient, and can help a doctor to better master the illness state of the patient. Among them, the nasal endoscope is an endoscope for nasal cavity detection.
The traditional nasal endoscope is designed in a hard tube structure, and a component inserted into a human body cannot be bent and cannot enter a bent cavity channel in a nasal cavity.
Disclosure of Invention
Based on the above, the invention provides a human body insertion assembly, which is designed to construct a flexible optical system, the orientation angle of a flexible elbow of an inner sheath tube is controlled by matching the outer sheath tube with the inner sheath tube and adjusting the insertion depth of the inner sheath tube on the outer sheath tube, and an objective lens is connected to a soft lens body and extends in a specified direction under the guidance of the flexible elbow, so that the human body insertion assembly is suitable for a curved cavity channel in a nasal cavity.
A human body insertion assembly comprising:
an outer sheath tube; the outer sheath includes: the sheath positioning sleeve, the constant-radius sheath pipe and the guide elbow are sequentially connected;
an inner sheath tube passing through the outer sheath tube; the inner sheath includes: the inner sheath positioning sleeve, the straight sheath pipe and the flexible elbow are sequentially connected; the inner sheath positioning sleeve is slidably arranged through the outer sheath positioning sleeve; the straight sheath pipe extends from the outer sheath positioning sleeve to the sheath pipe with the fixed radius; the flexible elbow extends from the guide elbow to the outside; and
the endoscope is arranged in the inner sheath tube in a penetrating way; an endoscope includes: the lens body, the hard lens body, the soft lens body and the objective lens are connected in sequence; the endoscope further comprises: the flexible image optical fiber and the flexible lighting optical fiber sequentially penetrate through the lens body, the hard lens body and the soft lens body; the endoscope body is slidably arranged through the inner sheath positioning sleeve; the hard endoscope body extends to the straight sheath pipe from the inner sheath positioning sleeve; the objective lens extends to the outside from the flexible elbow along with the soft lens body; the objective lens is provided with an image window connected with the flexible image optical fiber and an illumination window connected with the flexible illumination optical fiber.
The human body insertion assembly, the outer sheath tube, the inner sheath tube and the endoscope are sequentially sleeved from outside to inside, and the three are arranged in a sliding mode. When the orientation of an objective lens of the endoscope needs to be adjusted, the insertion depth of an inner sheath positioning sleeve of an inner sheath tube in an outer sheath positioning sleeve of the outer sheath tube is adjusted, so that the extension amount of a flexible elbow on the inner sheath tube relative to a guide elbow on the outer sheath tube is adjusted, based on the material characteristics of the flexible elbow, the orientation of the flexible elbow can be changed along with the change of the extension amount of the flexible elbow relative to the guide elbow, and a soft lens body of the endoscope extends in a specified direction under the guidance of the flexible elbow, so that the orientation of the objective lens is adjusted. Through above-mentioned design, construct the design of flexible optical system, through outer sheath pipe and interior sheath pipe cooperation, through the depth of insertion of adjusting interior sheath pipe on outer sheath pipe, realize the control of the orientation angle of the flexible elbow of interior sheath pipe, and objective connect on the soft mirror body and under the guide of flexible elbow, extend according to appointed direction to the crooked chamber way in the adaptation nasal cavity.
In one embodiment, the curvature radius of the guide elbow is 5 mm-300 mm, and the bending angle of the guide elbow is 5-30 degrees; the curvature radius of the flexible elbow is 5 mm-300 mm, and the bending angle of the flexible elbow is 0-90 degrees.
In one embodiment, the sheath positioning sleeve is provided with a sheath sliding groove arranged along the axial direction and a sheath locking piece connected with the sheath sliding groove; the inner sheath positioning sleeve is provided with an inner sheath sliding groove arranged along the axial direction and an inner sheath locking part connected with the inner sheath sliding groove; the inner sheath positioning sleeve is also provided with an inner sheath lock hole for butting the outer sheath locking part; the endoscope body is provided with an endoscope body lock hole which is butted with the inner sheath locking piece. The outer sheath locking part is connected to the inner sheath locking hole and moves in the outer sheath sliding groove, and when the inner sheath positioning sleeve moves to a required position relative to the outer sheath positioning sleeve, the position of the inner sheath positioning sleeve is locked through the outer pin locking part. The internal sheath retaining member is connected on the endoscope body lockhole and moves in the internal sheath spout along the drive of endoscope body, moves to required position when the relative internal sheath position sleeve of endoscope body, pins the position of endoscope body through the internal sheath retaining member.
In one embodiment, the endoscope further comprises: the laser fiber and the built-in water pipe are sequentially arranged in the lens body, the hard lens body and the soft lens body in a penetrating way; the front end of the soft lens body is provided with a flushing port connected with a built-in water pipe and a laser optical fiber port connected with a laser optical fiber; and the laser fiber port is compatible with the tip of the biopsy forceps to guide the movement of the biopsy forceps. The built-in water pipe is connected with the flushing port so as to realize the flushing function at the front end of the soft lens body. The laser fiber is connected with the laser fiber port to realize the laser treatment function at the front end of the soft lens body, and the laser fiber port can be compatible with the front end part of the biopsy forceps and can be matched with the biopsy forceps to guide the biopsy forceps to move to a required position to realize the biopsy function.
In one embodiment, the endoscope further comprises: the device comprises an optical fiber positioning sleeve connected with a flexible image optical fiber, an optical fiber outer sleeve connected with a flexible lighting optical fiber, a water nozzle connected with a built-in water pipe, and a laser outer joint connected with a laser optical fiber. The optical fiber positioning sleeve is used for positioning and supporting the rear end of the image optical fiber, the optical fiber outer sleeve is used for positioning the rear end of the illumination optical fiber, the water nozzle is used for connecting a water source, and the laser outer joint is used for connecting a laser source.
In one embodiment, the flexible image optical fiber, the flexible lighting optical fiber, the built-in water pipe and the laser optical fiber extend from the lens body to the front end of the soft lens body in a mutually parallel state. The adoption of the design of extending in the same direction can reduce the additional moment of an operator in the process of operating the outer sheath tube, the inner sheath tube and the endoscope.
In one embodiment, the diameter of the soft mirror body is less than 1.8 mm. The diameter of the flexible endoscope is less than 1.8mm, so that the flexible endoscope can be inserted into a narrow cavity channel of a human body.
Meanwhile, the invention also provides a nasal endoscope.
A nasal endoscope comprising the body insertion assembly of any of the above embodiments, further comprising: an eyepiece illumination connector connected to the body insertion assembly; the eyepiece illumination joint is connected with the endoscope.
According to the nasal endoscope, the human body insertion component is used for being in contact with the nasal cavity of a human body, and the eyepiece illumination connector and the human body insertion component form the nasal endoscope structure, so that the nasal detection function is realized. The flexible optical system is designed in a human body insertion assembly, the outer sheath tube is matched with the inner sheath tube, the insertion depth of the inner sheath tube on the outer sheath tube is adjusted, the control of the orientation angle of the flexible elbow of the inner sheath tube is achieved, the objective lens is connected to the soft lens body and extends in the appointed direction under the guidance of the flexible elbow, and therefore the flexible optical system is suitable for curved cavities of different shapes in the nasal cavity.
In one embodiment, the eyepiece illumination joint is detachably connectable to the endoscope. The split type design is adopted between the human body insertion assembly and the eyepiece illumination connector, the human body insertion assembly is used as a part in contact with a human body, and can be detached after use and used as a disposable part or a replacement part, and the eyepiece illumination connector is not in direct contact with the human body, so that the eyepiece illumination connector can be used as a reusable part.
In one embodiment, the eyepiece illumination joint comprises: the eyepiece comprises an eyepiece body, a light cone connected with the eyepiece body, an eyepiece light beam connector connected with the light cone, and an eyepiece optical lens group connected with the eyepiece body; the light cone is connected with the flexible lighting optical fiber; the eyepiece optical lens group is connected with the flexible image optical fiber. The light cone is matched with the ocular light beam connector and used for connecting the flexible lighting optical fiber with the lighting source and improving the illumination of the endoscope through the light cone. The eyepiece optical lens group is used for imaging the image of the rear end face of the flexible image optical fiber to the eyes of an operator through an eyepiece or imaging the image to the target surface of the camera through a camera interface, and displaying the image through a display.
Drawings
FIG. 1 is a schematic view of a body insert assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of the outer sheath of the body insertion assembly of FIG. 1;
FIG. 3 is a schematic view of the inner sheath of the body insertion assembly of FIG. 1;
FIG. 4 is a schematic view of an endoscope in the body insertion assembly shown in FIG. 1;
FIG. 5 is a cross-sectional view of the endoscope of FIG. 4 taken in the direction of N-N;
FIG. 6 is a cross-sectional view of the forward end of the soft lens body of the endoscope shown in FIG. 4;
FIG. 7 is a perspective view of the endoscope shown in FIG. 4;
FIG. 8 is a schematic view of the forward tip of the soft lens body of the endoscope shown in FIG. 4;
FIG. 9 is a first schematic view of the bending of the body insert assembly shown in FIG. 1;
FIG. 10 is a second principal view of the bending of the body insert assembly shown in FIG. 1;
FIG. 11 is a third principal view of the bending of the body insert assembly shown in FIG. 1;
FIG. 12 is a fourth principal view of the bending of the body insert assembly shown in FIG. 1;
FIG. 13 is a schematic view of an intranasal endoscope of one embodiment of the present invention;
FIG. 14 is a schematic view of an eyepiece illumination connector in the nasal endoscope shown in FIG. 13;
FIG. 15 is a partial view of the eyepiece illumination joint shown in FIG. 14;
FIG. 16 is a perspective view of the eyepiece illumination connector shown in FIG. 15;
FIG. 17 is a perspective view of the combination of the endoscope and the eyepiece illumination connector of the nasal endoscope shown in FIG. 13.
The meaning of the reference symbols in the drawings is:
1000-nasal endoscope;
100-a human body insertion assembly;
10-an outer sheath, 11-an outer sheath positioning sleeve, 12-a constant-radius sheath, 13-a guide elbow and 14-an outer sheath locking piece;
20-inner sheath pipe, 21-inner sheath positioning sleeve, 22-straight sheath pipe, 23-flexible elbow, 24-inner sheath locking piece and 25-inner sheath lock hole;
30-endoscope, 31-endoscope body, 32-hard endoscope body, 33-soft endoscope body, 34-objective lens, 341-image window, 342-illumination window, 343-flushing port, 344-laser optical fiber port, 35-flexible image optical fiber, 36-flexible illumination optical fiber, 37-endoscope body lock hole, 38-built-in water pipe, 39-laser optical fiber, 310-optical fiber positioning sleeve, 311-optical fiber outer sleeve, 312-water nozzle, 313-laser outer joint, 314-small straight endoscope pipe, 315-endoscope body positioning sleeve, 316-optical fiber sleeve and 317-sealing ring;
200-eyepiece illumination joint, 201-eyepiece body, 202-light cone, 203-light beam joint, 204-eyepiece optical lens group, 205-eyepiece locking piece, 206-limit pin, 207-eyepiece coupling sleeve, 208-eyepiece window glass and 209-eyepiece cover.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1-12, a body insert assembly 100 according to an embodiment of the present invention is shown.
As shown in fig. 1, the human body insertion set 100 includes: an outer sheath 10, an inner sheath 20 inserted into the outer sheath 10, and an endoscope 30 inserted into the inner sheath 20. Wherein, the endoscope 30 is used for acquiring the image of the internal tissue of the human body, the inner sheath 20 is used for guiding the orientation of the endoscope 30, the outer sheath 10 is used for shaping the bending radius of the inner sheath 20 and matching with the outer sheath 10, and the bending angle of the lens part of the endoscope 30 is controlled, so that the endoscope 30 is suitable for the bending cavity in the nasal cavity.
The human body insertion set 100 described above will be further described with reference to fig. 2 to 12.
As shown in FIG. 2, the outer sheath tube 10 comprises an outer sheath positioning sleeve 11, a sheath tube 12 with a fixed radius, and a guide elbow 13 which are connected in sequence, in the embodiment, the curvature radius R1 of the guide elbow 13 is 5 mm-300 mm, and the bending angle α of the guide elbow 13 is 5-30 degrees.
As shown in FIG. 3, the inner sheath 20 comprises an inner sheath positioning sleeve 21, a straight sheath 22 and a flexible elbow 23, which are connected in sequence, wherein the inner sheath positioning sleeve 21 is slidably arranged through the outer sheath positioning sleeve 11, the straight sheath 22 extends from the outer sheath positioning sleeve 11 to the sheath 12 with a fixed radius, and the flexible elbow 23 extends from the guide elbow 13 to the outside.
When the inner sheath tube 20 is combined with the outer sheath tube 10, the flexible bend 23 has elasticity and flexibility, and can follow the shape change in the straight pipe and the curved pipe, when the flexible bend 23 extends from the guide bend 13, the curvature radius of the extending part is consistent with that of the guide bend 13, and the orientation of the front end of the flexible bend 23 gradually changes along with the change of the extending length. The extension of the flexible elbow 23 at the guide elbow 13 can be adjusted by adjusting the insertion depth of the inner sheath positioning sleeve 21 in the outer sheath positioning sleeve 11, so as to achieve the purpose of adjusting the angle of the flexible elbow 23.
As shown in fig. 4 to 8, the endoscope 30 includes: a lens body 31, a hard lens 32, a soft lens 33, and an objective lens 34 connected in this order. Meanwhile, the endoscope 30 further includes: the flexible image optical fiber 35 and the flexible lighting optical fiber 36 are sequentially arranged in the lens body 31, the hard lens body 32 and the soft lens body 33 in a penetrating way. The endoscope body 31 is slidably arranged through the inner sheath positioning sleeve 21, the hard endoscope body 32 extends from the inner sheath positioning sleeve 21 to the straight sheath tube 22, the objective lens 34 extends to the outside from the flexible elbow 23 along with the soft endoscope body 33, and the front end of the soft endoscope body 33 is provided with an image window 341 connected with the flexible image optical fiber 35 and a lighting window 342 connected with the flexible lighting optical fiber 36. The objective lens 34 is one of the image pickup units of the endoscope 30, and is used for imaging an image of a human tissue on the distal end surface of the flexible image fiber 35 through the objective lens 34. Wherein, the diameter of the soft lens body 33 is less than 1.8 mm. The diameter of less than 1.8mm is designed, so that the soft lens body 33 can be inserted into a narrow cavity channel of a human body. The soft mirror body 33 has certain flexibility, the bending radius range is 1 mm-50 mm, and the soft mirror body can be bent along with the shape of a bent cavity. The hard mirror 32 is not bendable and has sufficient rigidity for supporting the soft mirror 33. The flexible image fiber 35 is used for image transmission. The flexible illumination fibers 36 are used for conduction of illumination light, directing the illumination light of the illumination light source to the illumination window 342.
When the endoscope 30, the inner sheath tube 20 and the outer sheath tube 10 are combined, the angle of the flexible elbow 23 is controlled by adjusting the insertion depth of the inner sheath positioning sleeve 21 in the outer sheath positioning sleeve 11, and the extending amount of the soft lens 33 relative to the flexible elbow 23 is controlled by adjusting the insertion depth of the lens body 31 in the inner sheath positioning sleeve 21, so that the purpose of controlling the orientation angle and the working depth of the objective lens 34 is achieved.
In the present embodiment, the sheath positioning sleeve 11 is provided with a sheath slide groove arranged in the axial direction and a sheath lock 14 connected to the sheath slide groove. The inner sheath positioning sleeve 21 is provided with an inner sheath sliding groove arranged along the axial direction and an inner sheath locking part 24 connected with the inner sheath sliding groove. The inner sheath positioning sleeve 21 is also provided with an inner sheath lock hole 25 which is butted with the outer sheath locking piece 14. The endoscope body 31 is provided with an endoscope lock hole 37 which is butted with the inner sheath locking piece 24. The outer sheath locking member 14 is connected to the inner sheath locking hole 25 and moves in the outer sheath sliding groove, and when the inner sheath positioning sleeve 21 moves to a desired position relative to the outer sheath positioning sleeve 11, the position of the inner sheath positioning sleeve 21 is locked by the outer pin locking member 14. The inner sheath locking piece 24 is connected to the endoscope body lock hole 37 and moves along the inner sheath sliding groove under the driving of the endoscope body 31, and when the endoscope body 31 moves to a required position relative to the inner sheath positioning sleeve 21, the position of the endoscope body 31 is locked through the inner sheath locking piece 24.
Further, in the present embodiment, the outer sheath locking member 14 and the inner sheath locking member 24 are both locking screws, and the relative positions of the outer sheath positioning sleeve 11, the inner sheath positioning sleeve 21 and the endoscope body 31 can be rapidly adjusted by screwing or unscrewing.
Further, as shown in fig. 4 to 8, in the present embodiment, there may be more arrangements for the endoscope 30.
For example, in the present embodiment, the endoscope 30 may further include: the built-in water pipe 38 and the laser fiber 39 are sequentially arranged in the lens body 31, the hard lens 32 and the soft lens 33. The front end of the soft lens body 33 is provided with a flushing port 343 connected with the built-in water pipe 38 and a laser fiber port 344 connected with the laser fiber 39, and the laser fiber port 344 is compatible with the front end part of the biopsy forceps to guide the movement of the biopsy forceps. The built-in water tube 38 is connected to the flush port 343 to perform a flush function at the front end of the soft lens body 33. The laser fiber 39 is connected with the laser fiber port 344 to realize the laser therapy function at the front end of the soft lens body 33, and the laser fiber port 344 is compatible with the front end part of the biopsy forceps and can cooperate with the biopsy forceps to guide the biopsy forceps to move to the required position to realize the biopsy function.
Further, in the present embodiment, the flexible image fiber 35, the flexible illumination fiber 36, the built-in water tube 38, and the laser fiber 39 extend from the scope body 31 to the front end of the soft scope 33 in a mutually parallel state. With the co-extensive design, the operator can be relieved of additional torque during manipulation of the outer sheath 10, inner sheath 20, and endoscope 30.
Further, as shown in fig. 4, 5, and 7, in the present embodiment, the endoscope 30 may further include: a fiber positioning sleeve 310 connected with the flexible image fiber 35, a fiber jacket 311 connected with the flexible lighting fiber 36, a water nozzle 312 connected with the built-in water pipe 38, and a laser outer joint 313 connected with the laser fiber 39. The fiber positioning sleeve 310 is used for positioning and supporting the rear ends of the image fibers, the fiber jacket 311 is used for positioning the rear ends of the illumination fibers, and the flexible illumination fibers 36 are coupled with an illumination light source. The water nozzle 312 is used for connecting a water source, and the laser outer joint 313 is used for connecting a light source.
As shown in fig. 4, in the present embodiment, the endoscope 30 may further include: a small straight mirror tube 314 connecting the flexible imaging fiber 35 and the flexible illumination fiber 36, the small diameter tube being used for back end support positioning of the flexible imaging fiber 35 and separation of the flexible illumination fiber 36 from the imaging fiber. Endoscope 30 may also include: a lens body positioning sleeve 315 connected with the lens body 31, wherein the lens body positioning sleeve 315 is used for supporting and positioning the rear end of the flexible image optical fiber 35. Endoscope 30 may also include: a fiber optic ferrule 316 is attached to the flexible illumination fibers 36, the fiber optic ferrule 316 being adapted for securing the rear ends of the flexible illumination fibers 36. Endoscope 30 may also include: and a sealing ring 317 sleeved on the lens body 31, wherein the sealing ring 317 is used for sealing connection between the lens body 31 and the eyepiece assembly.
As shown in fig. 9-12, which illustrate several curved states of the body insert assembly 100 of the present embodiment.
As shown in fig. 9, after the inner sheath 20 is inserted into the outer sheath 10, the inner sheath 20 moves downward to the limit position relative to the outer sheath 10, the extension length of the inner sheath 20 relative to the guide head of the outer sheath 10 reaches the maximum, and after reaching the 90 ° position, the outer sheath 10 and the inner sheath 20 are locked by the outer sheath locking member 14, and the bending radius of the portion of the flexible bend extending out of the guide bend 13 is kept consistent with the bending radius of the guide bend 13. After inserting the endoscope 30 into the inner sheath 20, the endoscope 30 is moved downward relative to the inner sheath 20 to a limit position where the head of the soft lens 33 of the endoscope 30 extends out of the flexible bend 23 with the objective lens 34 and enters the body lumen, and the viewing angle reaches 90 °, which is the maximum angle toward which the objective lens 34 in the present embodiment faces.
As shown in fig. 10, the endoscope 30 is moved upward relative to the inner sheath 20 to an extreme position such that the head of the soft lens body 33 is flush with the head of the flexible bend 23, which position has a viewing angle of 90 °.
As shown in fig. 11, after the inner sheath 20 is inserted into the outer sheath 10, the inner sheath 20 moves downward relative to the outer sheath 10, so that the flexible elbow 23 extends out of the guide elbow 13 to reach a position of 60 °, the endoscope 30 moves downward relative to the inner sheath 20, so that the head of the flexible endoscope 33 is flush with the head of the flexible elbow 23, and the endoscope 30 can also move downward again, so that the head of the flexible endoscope 33 extends out of the flexible endoscope and enters the body lumen, and the viewing direction angle at this position reaches 60 °.
As shown in fig. 12, after the inner sheath 20 is inserted into the outer sheath 10, the inner sheath 20 moves downward relative to the outer sheath 10, so that the flexible elbow 23 extends out of the guide elbow 13 to reach a position of 30 °, and the endoscope 30 moves downward relative to the inner sheath 20, so that the front end of the flexible endoscope 33 is flush with the front end of the flexible elbow 23, or the endoscope 30 moves downward again, so that the front end of the flexible endoscope 33 extends out of the front end of the flexible elbow 23 to enter the body lumen, and the viewing direction angle at this position reaches 30 °. Other angular viewing angles of the flexible mirror 33 of the endoscope 30 can be adjusted by adjusting the length of the flexible bend 23 extending beyond the guide bend 13, depending on the position of the body during the operation.
The human body insertion set 100, the outer sheath tube 10, the inner sheath tube 20, and the endoscope 30 are sequentially fitted from the outside to the inside, and all of them are slidably disposed. When the orientation of the objective lens 34 of the endoscope 30 needs to be adjusted, the insertion depth of the inner sheath positioning sleeve 21 of the inner sheath 20 in the outer sheath positioning sleeve 11 of the outer sheath 10 is adjusted, so that the protruding amount of the flexible elbow 23 on the inner sheath 20 relative to the guide elbow 13 on the outer sheath 10 is adjusted, based on the material characteristics of the flexible elbow 23, the orientation of the flexible elbow 23 is changed along with the change of the protruding amount of the flexible elbow 23 relative to the guide elbow 13, and the soft lens 33 of the endoscope 30 extends in a specified direction under the guidance of the flexible elbow 23, so that the orientation of the objective lens 34 is adjusted. Through the design, a flexible optical system design is constructed, the outer sheath tube 10 is matched with the inner sheath tube 20, the control of the orientation angle of the flexible elbow 23 of the inner sheath tube 20 is realized by adjusting the insertion depth of the inner sheath tube 20 on the outer sheath tube 10, and the objective lens 34 is connected to the soft lens body 33 and extends in the appointed direction under the guidance of the flexible elbow 23, so that the flexible optical system design is suitable for the curved cavity channels with different shapes in the nasal cavity.
Fig. 13 to 17 are combined with fig. 1 to 12, which show a nasal endoscope 1000 according to an embodiment of the present invention.
As shown in fig. 13, the nasal endoscope 1000 includes the human body insertion assembly 100 of the above-described embodiment, and further includes: an eyepiece illumination connector 200 of the body insertion assembly 100 is connected, wherein the eyepiece illumination connector 200 is connected to the endoscope 30.
As shown in fig. 14 to 17, an embodiment of an eyepiece illumination joint 200 is provided.
The eyepiece illumination joint 200 includes: the eyepiece comprises an eyepiece body 201, a light cone 202 connected with the eyepiece body 201, an eyepiece light beam connector 203 connected with the light cone 202, and an eyepiece optical lens group 204 connected with the eyepiece body 201. The light cone 202 connects the flexible illumination fibers 36. The eyepiece optics group 204 is connected to the flexible image fiber 35. The light cone 202 and eyepiece beam connector 203 cooperate to connect the flexible illumination fibers 36 to the illumination source. The eyepiece optical lens group 204 is used for imaging the image of the rear end face of the flexible image optical fiber 35 on the eyes of an operator through an eyepiece or imaging the image on the target surface of a camera through a camera interface, and displaying the image through a display.
Further, in the present embodiment, the eyepiece illumination joint 200 is detachably connected to the endoscope 30. The split type design is adopted between the human body insertion assembly 100 and the eyepiece illumination connector 200, the human body insertion assembly 100 is used as a part in contact with a human body, and can be detached after being used as a disposable part or a replacement part, and the eyepiece illumination connector 200 is not in direct contact with the human body, so that the human body insertion assembly can be used as a reusable part.
For example, in the present embodiment, the eyepiece illumination joint 200 may further include: an eyepiece holding member 205 radially penetrating the eyepiece body 201 locks the endoscope 30 by the eyepiece holding member 205 when the endoscope 30 is inserted into the eyepiece body 201. Further, in the present embodiment, eyepiece lock 205 includes: the locking screw and the handle can be driven to be screwed down or unscrewed by operating the handle. Further, as shown in fig. 14 and 15, the eyepiece illumination joint 200 may further include: and a limit pin 206 radially penetrating through eyepiece body 201 and used for preventing relative rotation of the handle and the locking screw, so as to lock the rotation angle of the locking screw and prevent eyepiece locking piece 205 from being disengaged from eyepiece body 201.
As shown in fig. 14, in the present embodiment, the eyepiece illumination joint 200 may further include: an eyepiece coupling sleeve 207 for fixing the eyepiece optics group 204 in the eyepiece body 201. Eyepiece illumination joint 200 further includes: an eyepiece window glass 208 connected to the eyepiece optics 204 and functioning to protect the eyepiece optics 204. Eyepiece illumination joint 200 further includes: the eyepiece cover 209 connected to the eyepiece optical lens assembly 204 functions as a protective eyewear window glass 208 to prevent stray light for easy observation by human eyes, and functions as a snap-fit connection with a camera to convert optical signals into electrical signals for displaying images on a display.
In the above-described nasal endoscope 1000, the body insert assembly 100 is adapted to contact the nasal passage of the human body, and the eyepiece illumination connector 200 and the body insert assembly 100 constitute the nasal endoscope 1000 structure, thereby performing the nasal detection function. In the human body insertion assembly 100, a flexible optical system design is constructed, the outer sheath tube 10 and the inner sheath tube 20 are matched, the control of the orientation angle of the flexible elbow 23 of the inner sheath tube 20 is realized by adjusting the insertion depth of the inner sheath tube 20 on the outer sheath tube 10, and the objective lens 34 is connected to the soft lens body 33 and extends in a specified direction under the guidance of the flexible elbow 23, so that the flexible optical system design is suitable for curved channels with different shapes in the nasal cavity.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A body insert assembly, comprising: the method comprises the following steps:
an outer sheath tube; the outer sheath includes: the sheath positioning sleeve, the constant-radius sheath pipe and the guide elbow are sequentially connected;
an inner sheath tube passing through the outer sheath tube; the inner sheath tube includes: the inner sheath positioning sleeve, the straight sheath pipe and the flexible elbow are sequentially connected; the inner sheath positioning sleeve is slidably arranged through the outer sheath positioning sleeve; the straight sheath extends from the outer sheath positioning sleeve to the constant-radius sheath; the flexible bend extends from the guide bend to the exterior; and
the endoscope is arranged in the inner sheath tube in a penetrating way; the endoscope includes: the lens body, the hard lens body, the soft lens body and the objective lens are connected in sequence; the endoscope further comprises: the flexible image optical fiber and the flexible lighting optical fiber sequentially penetrate through the lens body, the hard lens body and the soft lens body; the endoscope body is slidably arranged in the inner sheath positioning sleeve in a penetrating way; the hard endoscope body extends from the inner sheath positioning sleeve to the straight sheath tube; the objective lens is arranged at the front end head of the soft lens body and extends to the outside from the flexible elbow along with the soft lens body; the front end of the soft lens body is provided with an image window connected with the flexible image optical fiber and an illumination window connected with the flexible illumination optical fiber.
2. The body insertion assembly of claim 1, wherein the radius of curvature of the guide elbow is 5mm to 300mm, and the bend angle of the guide elbow is 5 ° to 30 °; the curvature radius of the flexible elbow is 5 mm-300 mm, and the bending angle of the flexible elbow is 0-90 degrees.
3. The body insertion assembly of claim 1, wherein the sheath positioning sleeve is provided with an axially disposed sheath slide slot and a sheath lock coupled to the sheath slide slot; the inner sheath positioning sleeve is provided with an inner sheath sliding groove arranged along the axial direction and an inner sheath locking part connected with the inner sheath sliding groove; the inner sheath positioning sleeve is also provided with an inner sheath lock hole which is butted with the outer sheath locking piece; the endoscope body is provided with an endoscope body lock hole which is butted with the inner sheath locking piece.
4. The body insertion assembly of claim 1, wherein the endoscope further comprises: the laser fiber and the built-in water pipe are sequentially arranged in the lens body, the hard lens body and the soft lens body in a penetrating way; the front end of the soft lens body is also provided with a flushing port connected with the built-in water pipe and a laser optical fiber port connected with the laser optical fiber; and the laser fiber port is compatible with the tip of the biopsy forceps to guide the movement of the biopsy forceps.
5. The body insertion assembly of claim 4, wherein the endoscope further comprises: the optical fiber positioning sleeve is connected with the flexible image optical fiber, the optical fiber outer sleeve is connected with the flexible lighting optical fiber, the water nozzle is connected with the built-in water pipe, and the laser outer joint is connected with the laser optical fiber.
6. The body insertion assembly according to claim 4, wherein the flexible image fibers, the flexible illumination fibers, the internal water tube, and the laser fibers extend in a parallel state from the scope body to a front tip of the soft scope body.
7. The body insert assembly of claim 1 wherein the diameter of the soft mirror body is less than 1.8 mm.
8. A nasal endoscope, comprising the human body insertion assembly of any one of claims 1 to 7, further comprising: an eyepiece illumination connector connected to the body insertion assembly; the eyepiece illumination joint is connected with the endoscope.
9. The nasal endoscope of claim 8, wherein the eyepiece illumination joint is detachably connectable to the endoscope.
10. The nasal endoscope of claim 8, wherein the eyepiece illumination joint comprises: the eyepiece comprises an eyepiece body, a light cone connected with the eyepiece body, an eyepiece light beam connector connected with the light cone, and an eyepiece optical lens group connected with the eyepiece body; the light cone is connected with the flexible lighting optical fiber; the eyepiece optical lens group is connected with the flexible image optical fiber.
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| CN202010135996.2A CN111297313B (en) | 2020-03-02 | 2020-03-02 | Human body insertion assembly and nasal endoscope |
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| CN202010135996.2A CN111297313B (en) | 2020-03-02 | 2020-03-02 | Human body insertion assembly and nasal endoscope |
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| CN111297313B CN111297313B (en) | 2022-12-06 |
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| Publication number | Publication date |
|---|---|
| CN111297313B (en) | 2022-12-06 |
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Effective date of registration: 20221226 Address after: 710119 North of the second floor of office building, No. 18, Development Avenue, New Industrial Park, Hi tech Zone, Xi'an, Shaanxi Patentee after: SHAANXI FEIMIAO MEDICAL EQUIPMENT CO.,LTD. Address before: 710000 North Side of the Second Floor of No. 18 Development Avenue, New Industrial Park, Xi'an High-tech Zone, Shaanxi Province Patentee before: Chen Peng |
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