CN108836240B - Sealed expansion joint and mounting connection structure thereof with endoscope - Google Patents
Sealed expansion joint and mounting connection structure thereof with endoscope Download PDFInfo
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- CN108836240B CN108836240B CN201810969573.3A CN201810969573A CN108836240B CN 108836240 B CN108836240 B CN 108836240B CN 201810969573 A CN201810969573 A CN 201810969573A CN 108836240 B CN108836240 B CN 108836240B
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- obturator
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- expansion joint
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- 238000007789 sealing Methods 0.000 claims abstract description 65
- 238000013532 laser treatment Methods 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 2
- 229910052689 Holmium Inorganic materials 0.000 abstract description 7
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 abstract description 7
- 239000013307 optical fiber Substances 0.000 abstract 1
- 230000001575 pathological effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 238000002647 laser therapy Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000000913 Kidney Calculi Diseases 0.000 description 1
- 206010029148 Nephrolithiasis Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002682 general surgery Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- A61B1/00066—Proximal part of endoscope body, e.g. handles
-
- 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
- A61B1/00071—Insertion part of the endoscope body
-
- 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
-
- 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
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
-
- 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
-
- 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
-
- 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
- A61B1/12—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 cooling or rinsing arrangements
- A61B1/126—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 cooling or rinsing arrangements provided with means for cleaning in-use
-
- 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
- A61B18/26—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 for producing a shock wave, e.g. laser lithotripsy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/361—Image-producing devices, e.g. surgical cameras
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
-
- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00505—Urinary tract
- A61B2018/00511—Kidney
-
- 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
- A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
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- Public Health (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
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- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Electromagnetism (AREA)
- Otolaryngology (AREA)
- Gynecology & Obstetrics (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses a sealed expansion joint, which comprises a male joint and a female joint which are matched with each other, wherein shaft holes for a medical device of an endoscope to pass through are respectively formed in the male joint and the female joint, a channel connector which can be fixed with the channel connector of the endoscope is arranged at the outer end of the female joint, a positioning sleeve is fixed in the female joint, the male joint is inserted into the positioning sleeve, an adjusting sleeve is connected onto the outer surface of the positioning sleeve in a threaded manner, a positioning ring is fixedly connected onto the outer surface of the male joint, a positioning groove matched with the positioning ring is formed in the adjusting sleeve, and a device connector which can be fixed with the medical device of the endoscope is arranged at one end of the male joint far away from the positioning sleeve. The observation range is adjusted by adjusting the depth of the image lighting device inserted into the handle of the endoscope through the sealing expansion joint, the holmium laser optical fiber is inserted through the instrument joint, and the holmium laser is adjusted through the sealing expansion joint to compensate.
Description
Technical Field
The invention relates to the technical field of minimally invasive medical instruments, in particular to a sealing expansion joint and an installation connection structure of the sealing expansion joint and an endoscope.
Background
At present, the minimally invasive surgery has the advantages of reducing pain of patients, being beneficial to recovery, having beautiful appearance, shortening hospitalization time, reducing cost and the like, and has been widely applied to departments such as urology surgery, orthopaedics, gynecology, general surgery, thoracic surgery, pathology, ophthalmology and the like. At present, kidney stones are treated in the field of urology surgery, percutaneous nephrolithotomy is widely used, and the percutaneous nephrolithotomy has the advantages of small wound, small damage to kidneys and surrounding tissues, light pain, short treatment period, immediate effect, quick recovery and the like.
When a clinically traditional percutaneous nephroscope operation enters the kidney due to puncture, an operator judges the puncture position by touching or predicting depth under the guidance of ultrasound, CT and the like, and the methods are blind and time-consuming, and have errors which easily cause the following problems:
1) The image lighting device cannot be quickly and accurately inserted in the puncture process, the position of the image lighting device at the puncture position can be accurately adjusted, the lesion position cannot be effectively observed in the operation process, and the operation difficulty is increased;
2) When the pathological change position needs to be treated by laser, the laser treatment device cannot be inserted accurately and rapidly, so that the laser treatment is difficult, and the laser loss cannot be compensated and the treatment is stopped because the position of the laser treatment device at the pathological change position cannot be accurately adjusted.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provide the sealing expansion joint which has a simple structure and can assist medical instruments to accurately observe and treat puncture and treatment positions and the mounting and connecting structure of the sealing expansion joint and an endoscope.
The invention discloses a sealing expansion joint, which is designed for achieving the purpose, and comprises a male joint and a female joint which are axially matched, wherein shaft holes for a medical device of an endoscope to pass through are respectively formed in the male joint and the female joint along the axial direction of the male joint and the female joint respectively, a channel connector which can be in butt joint with a channel connector of the endoscope is arranged at the outer end of the female joint, and a positioning sleeve is arranged at the inner end of the female joint; the male connector is arranged in the positioning sleeve, a circumferential limiting structure capable of limiting relative rotation is connected between the inner surface of the positioning sleeve and the outer surface of the male connector, the outer end of the male connector penetrates through the positioning sleeve to be fixedly connected with a device connector capable of being connected with a medical device of an endoscope, an external thread is arranged on the outer surface of the positioning sleeve, an adjusting sleeve is sleeved on the positioning sleeve, an internal thread matched with the external thread of the positioning sleeve is arranged on the inner surface of the adjusting sleeve, and the adjusting sleeve is connected with the male connector through an axial limiting structure capable of limiting relative axial movement between the male connector and the adjusting sleeve.
Furthermore, one end of the female connector is also provided with a female connector positioning column which can be inserted into the channel connector of the endoscope, the female connector positioning column is internally provided with a shaft hole along the axial direction of the female connector positioning column, and the shaft hole is used for the medical device of the endoscope to pass through, and the female connector positioning column is coaxially arranged in the channel connector.
Further, the circumferential limiting structure is a sealing ring fixed at the inner end of the male connector, and the sealing ring is attached to the inner surface of the positioning sleeve.
Furthermore, a stepped groove is formed in the outer surface of the inner end of the male connector, a sealing sleeve is fixed in the stepped groove, a ring groove is formed in the circumferential outer surface of the sealing sleeve, and the sealing ring is fixed in the ring groove.
Further, the axial limiting structure comprises a positioning ring coaxially and fixedly connected to the outer surface of the outer end of the male connector and a positioning groove formed in the inner surface of the adjusting sleeve, and the positioning ring is arranged in the positioning groove.
Further, the adjusting sleeve comprises an inner thread sleeve in threaded connection with the positioning sleeve and a limiting cover fixed on the outer surface of one end of the inner thread sleeve, which is far away from the positioning sleeve, the inner surface of the limiting cover and the end surface of the inner thread sleeve, which is far away from one end of the positioning sleeve, enclose into the positioning groove, and a through hole for the connector of the device to pass through is formed in the limiting cover.
Still further, it has the ladder groove to open on the circumference external surface of one end that the internal thread cover was kept away from the positioning sleeve, the limit cap including be fixed in stop collar and coaxial fixed connection in the ladder groove stop collar keep away from on the internal surface of internal thread cover one end, with stop collar structure as an organic whole, it has the confession to open in the stop collar the via hole that the device connector passed, the stop collar is located one side surface in the stop collar the internal thread cover is kept away from the terminal surface of positioning sleeve one end and the stop collar is kept away from the internal surface of one end of positioning sleeve encloses into the constant head tank.
The mounting and connecting structure of the sealing expansion joint and the endoscope comprises an endoscope handle, an image lighting device joint arranged on the endoscope handle, an image lighting device and the sealing expansion joint; the image lighting device connector is fixed with the channel connector of the sealing expansion joint, the device connector of the sealing expansion joint is fixedly provided with a hole closing device, and the image lighting device penetrates through the hole closing device, the sealing expansion joint and the image lighting device connector to be arranged in the endoscope handle.
Further, an external thread is arranged on the outer surface of the image lighting device connector, and an internal thread matched with the external thread of the image lighting device connector is arranged on the inner surface of the channel connector.
Further, the obturator comprises a obturator first sleeve, a obturator second sleeve and a obturator sealing ring, a vertical thread groove is formed in the obturator first sleeve along the circumferential bottom surface of the obturator first sleeve, threads matched with the vertical thread groove are arranged on the top outer surface of the obturator second sleeve, a sealing ring compression column coaxial with the obturator compression column is fixedly connected to the inner wall of the obturator first sleeve, a obturator sealing ring positioning hole and a obturator connecting hole fixed with the device connector are formed in the obturator second sleeve from top to bottom along the axial direction of the obturator second sleeve, and the obturator sealing ring is arranged in the obturator sealing ring positioning hole.
Furthermore, a obturator positioning column matched with the shaft hole of the device connector is fixedly connected to the inner wall of the obturator sealing ring positioning hole, the axis of the obturator positioning column and the axis of the obturator second sleeve are positioned on the same straight line, and the obturator positioning column is axially provided with the shaft hole for the image lighting device to pass through.
Still further, be equipped with the screw thread on the pore wall of obturator connecting hole, be equipped with on the surface of device connector with obturator connecting hole's screw thread complex external screw thread.
The mounting and connecting structure of the sealing expansion joint and the endoscope also comprises an instrument joint, a laser treatment device and the sealing expansion joint which are arranged on the handle of the endoscope; the device connector is fixed with the channel connector of the sealing expansion joint, the laser treatment device passes through the sealing expansion joint and the device connector and is arranged in the endoscope handle, and a connector limiting structure which can be matched with the device connector and limit the laser treatment device and the device connector to generate relative axial movement is fixed on the outer surface of the laser treatment device.
Further, an external thread is arranged on the outer surface of the instrument connector, and an internal thread matched with the external thread of the instrument connector is arranged on the inner surface of the channel connector.
Furthermore, the joint limiting structure is an instrument positioning cover coaxially fixed on the outer surface of the laser treatment device, and the instrument positioning cover is sleeved and fixed on the device connector.
The beneficial effects of the invention are as follows:
1. the sealing expansion joint is simple in structure and convenient to use. The sealed expansion joint can be used in combination with an image illumination device or a laser treatment device according to the surgical requirements. When sealed expansion joint and image lighting device combination use, in image lighting device inserted the endoscope handle, insert image lighting device and accurate adjustment image lighting device inserts the degree of depth in the endoscope handle through sealed expansion joint fast and adjust the observation scope to from the water injection joint water injection, rivers get into the people's body intracavity through the needle tubing and dash the shielding object before the camera lens, guarantee that the field of vision is wide, the image is clear.
2. After the pathological tissue is probed and diagnosed in the human body cavity, when the pathological tissue is smashed and treated, a doctor pushes the multi-stage expansion tube to the puncture opening, the puncture opening is expanded by the expansion tube, the expansion tube enters the human body cavity, the position of the expansion tube entering the human body cavity is observed through the image lighting device, and after the position is determined, the relative position of the puncture needle and the pathological tissue is observed and adjusted through the image lighting device. The holmium laser fiber is rapidly inserted into the instrument joint to carry out laser treatment on the pathological tissues, the holmium laser is lossy in the process of smashing and removing the pathological tissues, and the holmium laser of the pathological positions is compensated by adjusting the depth of the holmium laser inserted into the handle of the endoscope through the sealing expansion joint.
Drawings
FIG. 1 is a perspective view of a sealed expansion joint according to the present invention;
FIG. 2 is a front view of the connection structure of the sealed expansion joint and the endoscope in the present invention;
FIG. 3 is a left side view of the connection structure of the sealed expansion joint and the endoscope in the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a longitudinal cross-sectional view of the sealed expansion joint of FIG. 4;
FIG. 6 is a perspective view of the obturator;
FIG. 7 is a front view of the obturator;
FIG. 8 is a cross-sectional view B-B of FIG. 7;
FIG. 9 is a longitudinal cross-sectional view of the first sleeve of the obturator of FIG. 8;
FIG. 10 is a longitudinal cross-sectional view of the obturator seal ring of FIG. 8;
FIG. 11 is a longitudinal cross-sectional view of the second sleeve of the obturator of FIG. 8;
the device comprises a 1-male connector (1.1-locating ring, 1.2-device connector), a 2-female connector (2.1-channel connector, 2.2-locating sleeve, 2.3-female connector locating column), a 3-adjusting sleeve (3.1-internal thread sleeve, 3.2-limit cover), a 4-expanding sheath, a 5-locating groove, a 6-sealing ring, a 7-sealing sleeve, an 8-limit sleeve, a 9-limiting piece, a 10-endoscope handle, a 11-image lighting device, a 12-image lighting device connector, a 13-obturator (13.1-obturator first sleeve, a 13.2-obturator second sleeve, a 13.3-obturator sealing ring), a 14-vertical thread groove, a 15-sealing ring compression column, a 16-obturator sealing ring locating hole, a 17-obturator connecting hole, a 18-obturator locating column, a 19-laser therapy device, a 20-instrument connector, a 21-instrument locating cover, a 22-negative pressure adjusting connector, a 23-negative pressure suction sampling needle tube locating connector, a 24-puncture sampling needle tube locating connector, a 25-puncture needle tube, a 26-injection handle and a 27-obturator connector.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
The sealed expansion joint as shown in fig. 1-11 comprises a male joint 1 and a female joint 2, wherein a shaft hole which can be matched with a medical device of an endoscope is formed in the male joint 1 along the axial direction of the male joint, a through hole which corresponds to the shaft hole of the male joint 1 is formed in the female joint 2, a channel connector 2.1 which can be fixed with a channel connector of the endoscope and a female joint positioning column 2.3 which can be inserted into the channel connector of the endoscope are arranged at one end of the female joint 2, a shaft hole which can be used for the medical device of the endoscope to pass through is formed in the female joint positioning column 2.3 along the axial direction of the female joint positioning column, and the female joint positioning column 2.3 is coaxially arranged in the channel connector 2.1. The other end of the female joint 2 is fixedly provided with a positioning sleeve 2.2, a male joint 1 is inserted into the positioning sleeve 2.2, an adjusting sleeve 3 is connected to the outer surface of the positioning sleeve 2.2 in a threaded manner, a positioning ring 1.1 is fixedly connected to the outer surface of the male joint 1, and one end, away from the positioning sleeve 2.2, of the male joint 1 is provided with a device connector 1.2 which can be fixed with a medical device of an endoscope. The outer surface of one end of the male connector 1 positioned in the positioning sleeve 2.2 is fixedly provided with a sealing sleeve 7, the outer surface of the sealing sleeve 7 is provided with a ring groove, and the ring groove is internally fixed with a sealing ring 6. The sealing ring 6 is attached to the inner surface of the positioning sleeve 2.2.
The adjusting sleeve 3 comprises an inner thread sleeve 3.1 in threaded connection with the positioning sleeve 2.2 and a limiting cover 3.2 fixed on the outer surface of one end of the inner thread sleeve 3.1, which is far away from the positioning sleeve 2.2, a stepped groove is formed in the circumferential outer surface of one end of the inner thread sleeve 3.1, the limiting cover 3.2 comprises a limiting sleeve 8 fixed in the stepped groove and a limiting piece 9 coaxially and fixedly connected on the inner surface of one end of the limiting sleeve 8, which is far away from the inner thread sleeve 3.1, and the limiting piece 9 is of an integral structure with the limiting sleeve 8, a through hole for the connector 1.2 to pass through is formed in the limiting piece 9, one side surface of the limiting piece 9, which is located in the limiting sleeve 8, is far away from the end surface of one end of the positioning sleeve 2.2, of the inner thread sleeve 3.1 and the inner surface of the limiting sleeve 8 enclose a positioning groove 5 matched with the positioning ring 1.1.
Because the sealing ring 6 is arranged between the inner end of the male connector 1 and the positioning sleeve 2.2, the friction force between the sealing ring 6 and the positioning sleeve 2.2 limits the male connector 1 to rotate relative to the positioning sleeve 2.2, and meanwhile, the matching structure of the positioning ring 1.1 and the positioning groove 5 ensures that the male connector 1 and the adjusting sleeve 3 do not generate axial relative movement, so that the axial forward and backward movement of the male connector 1 in the positioning sleeve 2.2 is realized.
The above-mentioned installation connection structure of sealed expansion joint and endoscope includes endoscope handle 10, and medical device includes image lighting device 11 and laser therapy device 19, and the passageway connects including setting up the image lighting device joint 12 on endoscope handle 10 and setting up the apparatus joint 20 on endoscope handle 10.
The image illuminator connector 12 is fixed with a sealed expansion connector, the image illuminator 11 (such as a fiber optic) passes through the obturator 13, the sealed expansion connector fixed with the image illuminator connector 12 and the image illuminator connector 12, and the obturator 13 is fixed with the device connector 1.2. The obturator 13 comprises an obturator first sleeve 13.1, an obturator second sleeve 13.2 and an obturator sealing ring 13.3, a vertical thread groove 14 is formed in the circumferential bottom surface of the obturator first sleeve 13.1, threads matched with the vertical thread groove 14 are arranged on the outer surface of the top of the obturator second sleeve 13.2, a sealing ring compression column 15 coaxial with the obturator first sleeve is fixedly connected to the inner wall of the obturator first sleeve 13.1, an obturator sealing ring positioning hole 16 and an obturator connecting hole 17 matched with the device connector 1.2 are formed in the obturator second sleeve 13.2 from top to bottom along the axial direction of the obturator second sleeve, an obturator sealing ring 13.3 is arranged in the obturator sealing ring positioning hole 16, an obturator positioning column 18 matched with a shaft hole of the device connector is fixedly connected to the inner wall of the obturator sealing ring positioning hole 16, the axis of the obturator positioning column 18 and the axis of the obturator second sleeve 13.2 are located on the same straight line, and a shaft hole for the image lighting device 11 to pass through is formed in the obturator positioning column 18 along the axial direction of the obturator positioning column.
The instrument connector 20 is fixed with another sealed expansion joint, the laser treatment device 19 (such as holmium laser) passes through the sealed expansion joint fixed with the instrument connector 20 and the instrument connector 20, an instrument positioning cover 21 is fixed on the outer surface of the laser treatment device 19, and the instrument positioning cover 21 is sleeved and fixed on the device connector 1.2.
In the invention, the front and back positions of the laser treatment device and the image lighting device in the endoscope can be adjusted through the sealed expansion joint, and the specific operation is as follows:
adjusting the image lighting device: the female joint 2 is held by one hand, the first sleeve 13.1 of the obturator is rotated, the obturator sealing ring 13.3 of the obturator is tightly matched with the outer surface of the image lighting device 11, at the moment, the internal thread sleeve 3.1 is rotated to rotate relatively between the internal thread sleeve 3.1 and the positioning sleeve 2.2, the device connector 1.2 is fixed with the obturator positioning column 18, at the moment, the image lighting device 11 moves along with the male joint 1 simultaneously, and the front-back displacement in the endoscope handle 10 is realized.
Adjusting the laser treatment device: the instrument positioning cover 21 is fixed with the device connector 1.2, a person holds the female connector 2 by one hand, the internal thread sleeve 3.1 can rotate through relative rotation between the internal thread sleeve 3.1 and the positioning sleeve 2.2, and the forward and backward movement of the male connector 1 is realized, because the instrument positioning cover 21 is fixed with the device connector 1.2, the laser treatment device 11 moves simultaneously with the male connector 1 at the moment, the forward and backward movement in the endoscope handle 10 is realized, and when laser is lost, the compensation can be realized by adjusting the forward and backward position of the laser treatment device 11.
The above description is only of the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (12)
1. A sealed expansion joint, characterized in that: the endoscope comprises a male connector (1) and a female connector (2) which are axially matched, shaft holes for a medical device of the endoscope to pass through are respectively formed in the male connector (1) and the female connector (2) along the respective axial directions, a channel connector (2.1) which can be in butt joint with a channel connector of the endoscope is arranged at the outer end of the female connector (2), and a positioning sleeve (2.2) is arranged at the inner end of the female connector; the male connector (1) is arranged in the positioning sleeve (2.2), a circumferential limiting structure capable of limiting relative rotation between the male connector (1) and the positioning sleeve (2.2) is connected between the inner surface of the positioning sleeve (2.2) and the outer surface of the male connector (1), the outer end of the male connector (1) penetrates through the positioning sleeve (2.2) to be fixedly connected with a device connector (1.2) capable of being connected with a medical device of an endoscope, external threads are arranged on the outer surface of the positioning sleeve (2.2), an adjusting sleeve (3) is sleeved on the positioning sleeve (2.2), internal threads matched with the external threads of the positioning sleeve (2.2) are arranged on the inner surface of the adjusting sleeve (3), and the adjusting sleeve (3) is connected with the male connector (1) through an axial limiting structure capable of limiting relative axial movement between the male connector (1) and the adjusting sleeve (3); one end of the female connector (2) is also provided with a female connector positioning column (2.3) which can be inserted into the channel connector of the endoscope, the female connector positioning column (2.3) is internally provided with a shaft hole along the axial direction thereof, the shaft hole can be used for the medical device of the endoscope to pass through, and the female connector positioning column (2.3) is coaxially arranged in the channel connector (2.1); the circumferential limiting structure is a sealing ring (6) fixed at the inner end of the male connector (1), and the sealing ring (6) is attached to the inner surface of the positioning sleeve (2.2); the axial limiting structure comprises a positioning ring (1.1) which is coaxially and fixedly connected to the outer surface of the outer end of the male connector (1) and a positioning groove (5) which is formed in the inner surface of the adjusting sleeve (3), and the positioning ring (1.1) is arranged in the positioning groove (5).
2. The sealed expansion joint of claim 1, wherein: the outer surface of the inner end of the male connector (1) is provided with a stepped groove, a sealing sleeve (7) is fixed in the stepped groove, the circumferential outer surface of the sealing sleeve (7) is provided with a ring groove, and the sealing ring (6) is fixed in the ring groove.
3. The sealed expansion joint of claim 1, wherein: the adjusting sleeve (3) comprises an inner thread sleeve (3.1) in threaded connection with the positioning sleeve (2.2) and a limiting cover (3.2) fixed on the outer surface of one end of the inner thread sleeve (3.1) away from the positioning sleeve (2.2), wherein the inner surface of the limiting cover (3.2) and the end surface of the inner thread sleeve (3.1) away from one end of the positioning sleeve (2.2) enclose a positioning groove (5), and a through hole for the device connector (1.2) to pass through is formed in the limiting cover (3.2).
4. A sealed expansion joint according to claim 3, wherein: the utility model provides a device, including locating sleeve (2.2) and locating sleeve, including internal thread cover (3.1) keep away from open on the circumference external surface of the one end of locating sleeve (2.2) has the ladder groove, limit cap (3.2) including be fixed in stop collar (8) and coaxial fixed connection in the ladder inslot stop collar (8) keep away from on the internal surface of one end of internal thread cover (3.1), with stop collar (8) limit plate (9) as an organic whole structure, it has the confession to open in stop plate (9) device connector (1.2) pass's via hole, stop plate (9) are located one side surface in stop collar (8), internal thread cover (3.1) keep away from the terminal surface of one end of locating sleeve (2.2) and the internal surface of one end that stop collar (8) kept away from locating sleeve (2.2) encloses into locating groove (5).
5. A mounting connection structure of a sealed expansion joint and an endoscope according to any one of claims 1 to 4, characterized in that: comprises an endoscope handle (10), an image lighting device connector (12) arranged on the endoscope handle (10), an image lighting device (11) and the sealing expansion joint; the image lighting device connector (12) is fixed with the channel connector (2.1) of the sealing expansion joint, the obturator (13) is fixed on the device connector (1.2) of the sealing expansion joint, and the image lighting device (11) passes through the obturator (13), the sealing expansion joint and the image lighting device connector (12) to be arranged in the endoscope handle (10).
6. The structure for attaching a sealed expansion joint to an endoscope according to claim 5, wherein: the external surface of the image lighting device connector (12) is provided with external threads, and the internal surface of the channel connector (2.1) is provided with internal threads matched with the external threads of the image lighting device connector (12).
7. The structure for attaching a sealed expansion joint to an endoscope according to claim 5, wherein: the obturator (13) comprises an obturator first sleeve (13.1), an obturator second sleeve (13.2) and an obturator sealing ring (13.3), wherein a vertical thread groove (14) is formed in the circumferential bottom surface of the obturator first sleeve (13.1), threads matched with the vertical thread groove (14) are formed on the outer surface of the top of the obturator second sleeve (13.2), a sealing ring compression column (15) coaxial with the obturator compression column is fixedly connected to the inner wall of the obturator first sleeve (13.1), obturator sealing ring positioning holes (16) and obturator connecting holes (17) fixed with the device connector (1.2) are formed in the obturator second sleeve (13.2) from top to bottom along the axial direction of the obturator second sleeve, and the obturator sealing ring (13.3) is arranged in the obturator sealing ring positioning holes (16).
8. The attachment structure for a sealed expansion joint and an endoscope according to claim 7, wherein: the inner wall of the obturator sealing ring positioning hole (16) is fixedly connected with an obturator positioning column (18) matched with the shaft hole of the device connector (1.2), the axis of the obturator positioning column (18) and the axis of the obturator second sleeve (13.2) are positioned on the same straight line, and the obturator positioning column (18) is axially provided with a shaft hole for the image lighting device (11) to pass through.
9. The attachment structure for a sealed expansion joint and an endoscope according to claim 7, wherein: the hole wall of the obturator connecting hole (17) is provided with threads, and the outer surface of the device connector (1.2) is provided with external threads matched with the threads of the obturator connecting hole (17).
10. A mounting connection structure of a sealed expansion joint and an endoscope according to any one of claims 1 to 4, characterized in that: comprises an endoscope handle (10), an instrument joint (20) arranged on the endoscope handle (10), a laser treatment device (19) and the sealing expansion joint; the device is characterized in that the device connector (20) is fixed with the channel connector (2.1) of the sealing expansion joint, the laser treatment device (19) penetrates through the sealing expansion joint and the device connector (20) to be arranged in the endoscope handle (10), and a connector limiting structure which can be matched with the device connector (1.2) and limit relative axial movement between the laser treatment device (19) and the device connector (20) is fixed on the outer surface of the laser treatment device (19).
11. The mounting connection structure of a sealed expansion joint and an endoscope according to claim 10, wherein: the external surface of the instrument connector (20) is provided with external threads, and the internal surface of the channel connector (2.1) is provided with internal threads matched with the external threads of the instrument connector (20).
12. The mounting connection structure of a sealed expansion joint and an endoscope according to claim 10, wherein: the joint limiting structure is an instrument positioning cover (21) coaxially fixed on the outer surface of the laser treatment device, and the instrument positioning cover (21) is sleeved and fixed on the device connector (1.2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810969573.3A CN108836240B (en) | 2018-08-23 | 2018-08-23 | Sealed expansion joint and mounting connection structure thereof with endoscope |
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| CN201810969573.3A CN108836240B (en) | 2018-08-23 | 2018-08-23 | Sealed expansion joint and mounting connection structure thereof with endoscope |
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| CN108836240B true CN108836240B (en) | 2024-01-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111297313B (en) * | 2020-03-02 | 2022-12-06 | 陈鹏 | Human body insertion assembly and nasal endoscope |
| CN112438693A (en) * | 2020-12-09 | 2021-03-05 | 武汉佑康科技有限公司 | Combined endoscope with visual expansion function and head end capable of being accurately positioned |
| CN116831499B (en) * | 2023-07-10 | 2024-05-28 | 湖南中聚内窥镜有限公司 | Electronic endoscope |
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| CN108836240A (en) | 2018-11-20 |
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