LaparoscopeTechnical field
The utility model relates to a kind of laparoscopes, belong to the field of medical instrument technology.
Background technique
Laparoscope is a kind of medical instrument with miniature webcam, is used for internal organ imaging diagnosis.Laparoscope includes displayDevice, image processor, light source, handle and miniature webcam.Wherein, the working end of handle is arranged in miniature webcam, forThe working end of handle enters patient's body and implements the shooting of patient's body organic image.During carrying out laparoscopic surgery, doctorThe raw working end by handle is inserted into the patient, and the light of light source imports patient's body by the optical fibers in handle to be placeCamera shooting illumination is provided in the miniature webcam of patient's body.The organic image of the patient's body of miniature webcam acquisition is converted intoAfter electric signal, reach that image processor is processed, and final real-time display is over the display by photoelectric traverse.Doctor passes through displayThe image of shown patient organ's different angle on device, analyzes and determines conditions of patients, and uses dedicated laparoscopic instrumentImplement operation.Compared with abdominal, endoscope-assistant surgery has the advantages that pain is small, scar is few and post-operative recovery time is short.CauseThis, endoscope-assistant surgery using more and more extensive, such as department of general surgery, pediatric surgery, Urology Surgery, gynaecology, cardiothoracic surgery).
In existing laparoscopic surgery, laparoscope and more than two surgical instruments are mainly used, is cut in the abdomen of patientMultiple small notch are opened, laparoscope and another are inserted by a notch or multiple notch are inserted into surgical instrument, so as toIt is operated while observing intra-abdominal organ or lesion tissue, wherein the surgical instrument is for laparoscopic surgeryThe specific purpose tool provided is operated, such as blocking blood vessel and suturing the surgical instrument of tissue.Multiple notch, will increase patient'sPain, while influencing beauty.
Existing laparoscope needs special messenger to help camera lens, in order to change camera lens according to the variation of operative site in timePosition, direction etc., therefore, the person that helps camera lens and operator are in operative process due to holding mirror overlong time or other are differentSituation occurs, and will affect the progress and effect of operation.And laparoscope is after the completion of arrangement, and it is general immovable, it results in this wayThe picture angle that the camera lens of laparoscope can take is limited, influences the progress of operation.
In addition, present laparoscopic surgery is mostly using gas as medium, perform the operation start when, doctor is by carbon dioxide etc.Gas is filled with the intraperitoneal of patient by the inlet channel of laparoscope, performs the operation in the environment of gas later.
Therefore, it is necessary to improve to existing laparoscope, so that laparoscope is more perfect in structure, mitigate patientPain, reduce the workload of medical worker.
Utility model content
To solve the above problems, the utility model aim is to provide a kind of laparoscope, laparoscope can be helped for a long timeMain body in order to flexibly fix laparoscope body position and direction, operation path can be reduced, mitigate the pain of patient；AndPhysiological saline can be poured into patient's body while meeting lighting demand, carry out operation under water-filled environment.
The purpose of this utility model is achieved through the following technical solutions:
A kind of laparoscope, including laparoscope fixator and laparoscope body, the laparoscope body are fixed on the abdomenOn the clamper of the fixed device of hysteroscope, in which:
The laparoscope fixator includes pedestal, cradling piece, connecting rod, rotating extensible arm and clamper；The cradling pieceIt is mounted on the base, the fixing end of the connecting rod is fixed on the cradling piece, described in the motion end connection of the connecting rodThe other end of the round end of rotating extensible arm, the rotating extensible arm connects the clamper；
The laparoscope body includes handle, the video transmission channels being set in the handle, luminous source optical fiber channel, deviceTool channel, channel of pouring water, exhalant canal and venting channels；Wherein, photoelectric traverse passes through the video transmission channels, optical fibersAcross the luminous source optical fiber channel；The working end of the handle is equipped with miniature webcam, and the miniature webcam passes through photoconductionLine connection is located at the image processor outside laparoscope body, and described image processor connects display；The cavity of the handleInside is equipped with LED light source, and the optical fibers connect LED light source, provide light for the miniature webcam；The end of the handleIt is respectively equipped with instrument through-hole, water inlet, water outlet, venthole and wire interface.
Further, the fixing end of the connecting rod can be along the cradling piece vertical sliding.
Further, the connecting rod is made of three free bars, and adjacent free bar is connected by free joint.
Further, the rotating extensible arm can stretch in the horizontal direction, while can rotate 60 degree around the motion end of connecting rod.
Further, the exhalant canal is connected by water outlet with negtive-pressure implement.
Further, the working end of the handle is additionally provided with photoelectric converter, and the image of the miniature webcam acquisition is logicalIt crosses photoelectric converter and is converted to electric signal, electric signal is transferred to image processor by photoelectric traverse, and image processor is by telecommunicationsIt is shown over the display after number being reduced into picture signal.
Further, the handle is equipped with lug boss, and the lug boss is fixed on clamper；The LED light source settingIn the inner cavity of the lug boss.
Further, the power supply line of the LED light source is connected to described image processor by the wire interface.
The utility model has the following beneficial effects:
Laparoscope involved by the utility model can top to bottom, left and right, front and rear be mobile and rotary motion, are playing the role of helping mirrorWhile, be conducive to each position in viewing and Orientation observation abdominal cavity, improve the flexible mobile convenience of laparoscope.
Laparoscope involved in the utility model can pour into physiology salt to patient's body while meeting lighting demandWater carries out operation in the environment of full of physiological saline, micro- described in physiological saline medium compared in gaseous mediumsThe image information for the acquisition patient's body that type camera can be more clear, and can subtract in specific operative processFew injury of the surgical instrument to patient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of laparoscope described in the utility model；
Fig. 2 is handle cross section structure schematic diagram described in the utility model；
Fig. 3 is laparoscope body structural schematic diagram described in the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementationExample, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain thisUtility model is not used to limit the utility model.
As shown in Figure 1, a kind of laparoscope, including laparoscope fixator and laparoscope body 7, the laparoscope body 7It is fixed on the clamper 6 of the laparoscope fixator.
The laparoscope fixator includes pedestal 1, cradling piece 2, connecting rod, rotating extensible arm 5 and clamper 6.The bottomSeat is responsible for the upright reliable and stable of entire fixed device, and the cradling piece 2 is mounted on the pedestal 1, the fixation of the connecting rodEnd is fixed on the cradling piece 2, and the motion end of the connecting rod connects the round end of the rotating extensible arm 5, and the rotation is stretchedThe other end of contracting bar 5 connects the clamper 6.
Wherein, the fixing end of the connecting rod can be along 2 vertical sliding of cradling piece.The connecting rod is by three 3 groups of free barAt adjacent free bar 3 is connected by free joint 4.The rotating extensible arm 5 can stretch in the horizontal direction, while can be around connecting rodMotion end rotate 60 degree.The setting of above-mentioned laparoscope fixator so that laparoscope can top to bottom, left and right, front and rear it is mobile andRotary motion is conducive to each position in viewing and Orientation observation abdominal cavity, improves laparoscope while playing the role of helping mirrorFlexible mobile convenience.Preferably, the lower section of the pedestal 1 is equipped with wheel, forms mobile base, convenient for displacement.
As shown in Fig. 2, the laparoscope body 7 includes handle, video transmission channels 12, the light being set in the handleSource optical-fibre channel 13, instrument channel 10, channel 11 of pouring water, exhalant canal 14 and venting channels 15；Wherein, photoelectric traverse passes through instituteVideo transmission channels 12 are stated, optical fibers pass through the luminous source optical fiber channel 13；The working end of the handle is respectively equipped with miniatureThe image of camera and photoelectric converter, the miniature webcam acquisition is converted to electric signal, electric signal by photoelectric converterIt is transferred to image processor 8 by photoelectric traverse, electric signal is reduced into after picture signal on the display 9 by image processor 8Display.
The end of the handle is respectively equipped with instrument through-hole, water inlet 20, water outlet 18, venthole 16 and wire interface17, and seal cap is equipped at the instrument through-hole, water inlet 20, water outlet 18, venthole 16.The external physiology of water inletSalt water provides medium for operation, realizes abdominal cavity hand in water so that physiological saline is entered in abdominal cavity of patients by the channel of pouring waterArt.The exhalant canal is connected by water outlet 18 with negtive-pressure implement.After operation, can by abdominal cavity of patients sewage,The waste liquids such as hematocele are extracted out by exhalant canal, and specific way can be extracted above-mentioned waste liquid out from patient's body by negtive-pressure implement.The instrument channel allows complicated surgical instrument to pass through, so that can reduce operation path when operation, mitigate the pain of patientIt is bitter.
The cavity inside of the handle is equipped with LED light source, and the optical fibers connect LED light source, is the miniature video cameraHead provides illumination.LED light source is cold light source, and power is low, is not necessarily to transformation and special cooling device, so small volume, it canIt avoids connecting bulky light supply apparatus, it is smaller to the patient effect in operation.In addition, LED light source is photochromic pure, brightness is high, hairLight is stablized, and image color is Well-recovered.Using the LED light source advantage small there are also power consumption.
As shown in Figure 3, it is preferred that the handle is equipped with lug boss 21, and the lug boss 21 is fixed on clamper 6, instituteIt states and is equipped with the LED light source in the inner cavity of lug boss 21.It realizes the built-in of light source, then connect, compare with optical fibers againThe light source of existing laparoscope, the laparoscope in the present embodiment only needs to transmit in the handle, and it is external to can be avoided light sourceThe caused light guide process for needing to transmit by two sections can finally shorten the transmission range of light, and then reduce light loss, whenSo, it also can reduce the influence in laparoscopic surgery to patient organ's image taking.
The LED light source is arranged in handle, and power supply line stretches out handle, is connected to by the wire interface 17 describedImage processor 8.Under normal conditions, the power supply line of LED light source and photoelectric traverse are stretched out from wire interface, this will lead to wiringConfusion, wiring low efficiency.In order to solve this problem, the power supply line of photoelectric traverse and LED light source is integrated into connection in the present embodimentBundle conductor can be avoided route confusion.Connecting wire beam is directly inserted into the interface set in device reason at image.It is preferred that, above-mentioned connecting wire beam be flexible wire beam, usual conducting wire be all it is soft, it is identical in order to reach above-mentioned flexible wire beamEffect can be arranged flexible sleeve, such as silica gel sleeve, soft rubber sleeve etc. outside photoelectric traverse and power supply line.This flexibilityBundle conductor can further facilitate the operation of doctor during surgery.In order to further optimize the above technical scheme, above-mentioned laparoscopePhotoelectric traverse, power supply line should have enough length so that doctor can operate in larger distance.
As advanced optimizing, laparoscope opens and closes the camera controller setting of its miniature webcam in intracavity of handle and protrusionPosition corresponding to portion.Specifically, the camera shooting control button (open key and close key) of camera controller is located at lug bossOuter surface.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for thisFor the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility modelWithin, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.