Medical endoscope disposable shield sleeve and medical endoscope
Technical field
The present invention relates to medical instruments field, be specifically related to a kind of medical endoscope disposable shield sleeve and corresponding medical endoscope.
Background technology
At present medical flexible endoscope has been widely used in the fields such as inspection, diagnosis, treatment of the human bodies such as anorectal, esophagus, stomach, otorhinolaryngology.Because of it, observe the advantages such as directly perceived, the accurate ,Dui of result tissue injury is little, become a kind of indispensable means in modern medicine.Yet medical flexible endoscope will go deep into, in patient body, inevitably will contacting patient's body fluid, blood, organ-tissue etc.If it is not thorough to sterilize, will produce some consequences difficult to the appraisal such as cross infection.
Flexible endoscope, due to the particularity of its material and structure, can not pass through traditional disinfection with high pressure steam.And due to flexible endoscope integrated CCD imaging device, pass the parts such as illuminating apparatus, biopsy channel, attraction channel, bath filling channel, cause the cost of flexible endoscope higher, can not disposable use.Medical flexible endoscope mainly utilizes the mode of medicining liquid dipping and flushing to sterilize at present, and the method sterilization is stable not.
In order to improve the stability of sterilization, CN03136141 has adopted endoscope body and other channel separation has been opened, and the method for overlapping last layer disposable shield sleeve on endoscope body reaches this purpose.But while entering human body, easily cause other each pipelines to be flattened, thereby block passage; Each several part irregular structure owing to entering human body, brings very large misery to patient in addition.
The mode that CN201010162668 adopts remains biopsy channel, water-through and ventilating interface and flexible endoscope handle is fixed together, and this is main passage of contaminants.Once pollute, must sterilize by whole piece soft lens, can make the stability of sterilization reduce, increase the probability of cross infection.Visible prior art can only realize mirror body protection, and can not realize biopsy channel, aqueous vapor passage is separated with mirror body, in use has potential safety hazard.
Therefore, also need medical endoscope sheath to do further improvement, to improve the stability of sterilization, reduce the probability of cross infection.
Summary of the invention
The present invention is intended to overcome existing medical endoscope sterilization poor stability, easily cause cross infection, and the defect of complicated operation, provide a kind of simple, easy to operate, and can avoid the medical endoscope disposable shield sleeve of mirror body pollution, with and supporting medical endoscope.
An aspect of of the present present invention provides a kind of medical endoscope disposable shield sleeve, comprising: sheath outer wall; Walk abreast and be wrapped in scope sheath, aqueous vapor passage and the biopsy channel in sheath outer wall; And the wedge joint engaging with described sheath outer wall, described wedge joint is used for accessing medical endoscope, aqueous vapor passage and biopsy channel, and comprises the scope entrance that connects described scope sheath.
In certain situation, the front end of described sheath outer wall is transparent membrane, and the front end of described aqueous vapor passage and described biopsy channel is in communication with the outside by described transparent membrane.
In certain situation, the front end of described aqueous vapor passage is the bending outlet being fixed on described transparent sheet.
In certain situation, described scope sheath comprises endoscope passage, and the forward end seal of described endoscope passage is connected with front end slide, described front end slide and the laminating of described transparent membrane, and the rear end of described endoscope passage connects the scope entrance of described wedge joint.
In certain situation, between the rear end of described endoscope passage and described wedge joint, there is cavity, described aqueous vapor passage and aqueous vapor control knob all embed described wedge joint in position corresponding to described cavity, and a passage forming for converge the gentle passage of aquaporin by three way cock of described aqueous vapor passage.
In certain situation, the rear end of described biopsy channel and described wedge joint bonding, and draw from described wedge joint.
In certain situation, described scope entrance comprises wedged interface, for the wedge shape coupling part of the medical endoscope that is connected.
In certain situation, the arrival end of described scope entrance also comprises otch, for coordinating the bossing of clamping medical endoscope handle end.
In certain situation, the length of described endoscope passage is to make the mirror body front end of medical endoscope be close to the described front end slide of described endoscope passage front end.
The present invention provides a kind of medical endoscope on the other hand, described medical endoscope and medical endoscope disposable shield sleeve of the present invention are used in conjunction with, wherein, described medical endoscope does not comprise aqueous vapor passage and biopsy channel, described medical endoscope coupling part has wedge structure, to be connected with described wedge joint, the handle end of described medical endoscope also comprises bossing, to coordinate clamping with described otch, the mirror body length of described medical endoscope is to make the mirror body front end of medical endoscope be close to the described front end slide of described endoscope passage front end.
The present invention is integrated in biopsy channel, aqueous vapor passage in endoscope sheath, and uses wedge joint to connect endoscope body, realizes the thoroughly isolated of mirror body and pollutant, has effectively avoided cross infection.And simple in structure, easy to operate, disposable shield sleeve is changed after each use, avoids complicated disinfecting process, is suitable for the use occasion of various flexible endoscopes.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of medical endoscope disposable shield sleeve of the present invention.
Reference numeral: 1. endoscope passage; 2. otch; 3. wedge joint; 4. scope protecting pipe; 5. aqueous vapor passage; 6. cavity; 7. biopsy channel pipe; 8. sheath outer wall; 9. thin transparent film; 10. moisture outlet; 11. biopsy channels; 12. endoscope passages; 13. aqueous vapor control knobs
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
With reference to figure 1, the structure of schematically illustrated medical endoscope disposable shield sleeve according to a preferred embodiment of the invention.This sheath and medical flexible endoscope are used in conjunction with, and are the disposable shield sleeve devices that endoscope inserts human body parts.
As seen from the figure, medical endoscope disposable shield sleeve of the present invention is mainly by the scope sheath 4, aqueous vapor passage 5 and the biopsy channel 7 that are included in sheath outer wall 8, and engages for being connected the wedge joint 3 of endoscope body with sheath outer wall 8.
Scope sheath 4, aqueous vapor passage 5 and the parallel composition of biopsy channel 7 three, in one, are rolled into an Integral shield sleeve by sheath outer wall 8.That is the present invention has cancelled in the medical flexible endoscope of common use aqueous vapor passage, the biopsy channel integrated with mirror body, but they are integrated in disposable shield sleeve.Like this, when changing sheath after each use, change aqueous vapor passage and biopsy channel, reduce the probability of contaminants mirror body, reduce the probability of cross infection.
The front end of sheath outer wall 8 is transparent membrane 9.The front end of biopsy channel 7 is in communication with the outside by transparent membrane 9, so that movable detecting apparatus passes through in operation; The rear end of biopsy channel 7 embeds wedge joint 3, for example can be by being for example thin-wall plastic pipe by biopsy channel 7() for example, wedge joint 3 bonds together with (for rigid plastics), and embedding wedge joint 3, and draw from it.
The front end of aqueous vapor passage 5 is also in communication with the outside by transparent membrane 9, and its front end can be for being fixed on the bending outlet 10 on transparent sheet 9, so that endoscope front end cleans in operation; Also draw from wedge joint 3 rear end of aqueous vapor passage 5.Aqueous vapor passage 5 is directly connected with external water-through and ventilating device.
In the structure shown in Fig. 1, between the rear end of scope sheath 4 and wedge joint 3, can be formed with cavity 6.Aqueous vapor passage 5, aqueous vapor control knob 13 all embed wedge joint 3 in the position of these cavity 6 correspondences, so that water pipe, trachea pass through in cavity 6.Two pipes of aqueous vapor can converge by three way cock cavity 6 is interior, become an aqueous vapor passage 5.
Scope sheath 4 comprises endoscope passage 12, and to hold endoscope body, therefore, the length of endoscope passage 12 should match with the length of endoscope body.The forward end seal of endoscope passage 12 is connected with front end slide, and this front end slide, together with scope sheath 4 adhering and sealings, makes the front end of scope sheath 4 form the endoscope passage 12 sealing.Endoscope passage 12 by sealing thoroughly seals endoscope body, isolated with biopsy channel and aqueous vapor passage, stops to pollute.This front end slide can be the transparent sheet glass of height or high transparent acrylic thin slice etc.
Front end slide is also fitted with the transparent membrane 9 of sheath outer wall 8 front ends, for example, at front end slide, use glue around, to fit together with transparent membrane 9.Preferably, can also accurately control the length of endoscope passage 12, so that the front end of endoscope body is close to the front end slide of endoscope passage 12 front ends in operation, thereby to guarantee that there is the good visual field in endoscope.
Wedge joint 3 can be made by rigid plastics, and it connects sheath outer wall 8, and together with the adhering and sealing of the rear end of scope sheath 4, for accessing medical endoscope, aqueous vapor passage 4 and biopsy channel 7.As shown in fig. 1, wedge joint 3 is forming scope entrance 1 with scope sheath 4 junctions, and endoscope body packs sheath into from scope entrance 1, and the rear end of endoscope passage 12 is connected to scope entrance 1 place of wedge joint 3.
Scope entrance 1 place is designed with wedged interface, can the be connected wedge shape coupling part of medical endoscope of this wedged interface.That is with the medical endoscope that disposable shield sleeve of the present invention is used in conjunction with, its coupling part is also improved to formation wedge structure, to coordinate with this wedge joint 3.Before operation, medical endoscope and disposable soft sheath of the present invention are two independent sectors.During use, medical endoscope enters scope sheath 4 by scope entrance 1, until the laminating of the front end slide of the front end of Medical endoscope mirror body and endoscope passage 12.
As further improvement, the arrival end of scope entrance 1 is also designed with otch 2, for coordinating the bossing of clamping medical endoscope handle end.The medical endoscope handle end being simultaneously used in conjunction with has corresponding bossing.This bossing coordinates clamping with otch 2, medical endoscope and disposable shield sleeve is combined into an integral body, to complete operation.
Sheath of the present invention is integrated into the aqueous vapor passage, the biopsy channel that were originally integrated on endoscope body on disposable soft sheath.So integrated biopsy channel, water-through and ventilating passage, mirror body passage three on sheath.Use rear replacing disposable shield sleeve, biopsy channel and aqueous vapor passage are all only used once at every turn.In this way, avoid pollutant to contact with expensive mirror body, effectively avoid in endoscope treatment process, because the mirror body in mirror body, biopsy channel, aqueous vapor passage are reused, and the cross infection causing.
Disposable shield sleeve of the present invention connects by wedge shape, is connected and fixed by wedge shape with flexible endoscope.Flexible endoscope mirror structure of the present invention is also carried out to corresponding improvement, keeping on the original resemblance of the medical endoscope basis of generally using now, cancel water-through and ventilating passage, the biopsy channel integrated with mirror body, and increased wedge structure at operating grip end and soft lens coupling part.In the situation that not increasing medical endoscope operation size, the once-through operation connecting by wedge shape, makes disposable shield sleeve be fixedly connected with endoscope, simple in structure, easy to operate.
Endoscope body divides in the individual passage being completely sealed in disposable shield sleeve, can avoid completely and the contacting of extraneous aqueous vapor and organ, thoroughly stop possible pollution channel, avoided the numerous and diverse sterilization engineering of mirror body, be applicable to the occasion that various flexible endoscopes are used.
The above the specific embodiment of the present invention, does not form limiting the scope of the present invention.Various other corresponding changes and distortion that any technical conceive according to the present invention has been done, all should be included in the protection domain of the claims in the present invention.