A kind of novel hemodialysis conduitTechnical field
This utility model is related to technical field of medical instruments, and particularly a kind of hemodialysis for hemodialysis are ledPipe.
Background technology
Hemodialysis are that excessive moisture or solute etc. are cleared out of a kind of internal technology.Hemodialysis need foundation to haveThe venous channel of effect, from arterial end extraction blood in the patient, is input to by vein end after purging in vitro is processed againIn the patient.
At present, when clinically patient is carried out with hemodialysis operation, the hemodialysis catheter comprcssive strength of use is little, directlyThere is certain difficulty during insertion blood vessel, and, due to the presence of negative pressure, attaching often occurs in the tremulous pulse end opening of hemodialysis catheterIn the phenomenon of blood vessel wall, thus leading to blood from flowing out not smooth situation in the patient, what impact was treated is normally carried out, sternlyIn the case of weight, there may be blood inside catheters stop flowing and form thrombosis, damage filter, lead to Endodontic failure, so notIncrease only the misery of patient, or even be also possible to the serious consequence that threaten patient vitals occurs.
Content of the invention
The technical problem that this utility model is solved is to provide a kind of novel hemodialysis conduit.
The technical solution of the utility model is such that in the body of hemodialysis catheter except blood drawing chamber and blood transfusion chamberOutward, it is additionally provided with the gentle tube chamber of airbag chamber, airbag chamber front end and the airbags near ostium arteriosum, trachea chamber front end is with outwardBoundary is not communicated with, by proper moment to trachea chamber and airbag chamber in inflate, it is achieved thereby that insert patient vessel in when, carryHigh hemodialysis catheter bending resistance and the purpose of comprcssive strength, in hemodialysis, it is to avoid the purpose blocking ostium arteriosum.
The novel hemodialysis conduit that this utility model is related to, including body, Triangulum, fixation clamp, extension pipe, conduitFolder, extension pipe joint, lengthening fixing pipe and calparine cap, body is provided with ostium venosum cordis and ostium arteriosum, and it is internally provided with blood drawingChamber and blood transfusion chamber it is characterised in that: described tubular body is additionally provided with the gentle tube chamber of airbag chamber, its end respectively pass through airbag chamberJoint gentle tube chamber joint is connected with the external world, is provided with air bag, air bag and airbag chamber front end phase near the ostium arteriosum of tube wallLogical, trachea chamber front end is not communicated with the external world.
Novel hemodialysis conduit that this utility model is related to it is characterised in that: described air bag is three, is distributed in tremulous pulseAround mouthful.
Novel hemodialysis conduit that this utility model is related to it is characterised in that: described trachea chamber is three, circular, allIt is distributed in the tube wall of body.
Novel hemodialysis conduit that this utility model is related to it is characterised in that: described trachea chamber is annular, positioned at pipeIn the tube wall of body.
The novel hemodialysis conduit that this utility model is related to, due to being provided with trachea chamber and airbag chamber in its body,By in proper moment to trachea chamber and airbag chamber in inflate, it is achieved thereby that insert patient vessel in when, improve blood saturatingAnalysis conduit bending resistance and the purpose of comprcssive strength, in hemodialysis, it is to avoid the purpose blocking ostium arteriosum；In addition, this practicality is newType also has the advantages that structure is simple and convenient to operate.
Brief description
Fig. 1 is the structural representation of hemodialysis catheter；
Fig. 2 is a kind of cross-sectional view of structure of hemodialysis catheter；
Fig. 3 is the cross-sectional view of hemodialysis catheter another kind structure.
Wherein, 1- body, 2- Triangulum, 3- fixation clamp, 4- extension pipe, 5- vessel clamp, 6- extension pipe joint, 7- lengthens solidFixed tube, 8- calparine cap, 9- airbag chamber joint, 10- trachea chamber joint, 11- airbag chamber, 12- trachea chamber, 13- air bag.
Specific embodiment
With reference to the accompanying drawings and detailed description, technical scheme this utility model being related to is carried out furtherBright, but not as the restriction to technical scheme.
Embodiment one
As shown in figure 1, hemodialysis catheter of the present utility model include body 1, Triangulum 2, fixation clamp 3, extension pipe 4,Lengthen fixing pipe 7 and calparine cap 8.
As shown in Fig. 2 body 1 front end is tip, it is internally provided with six separate tube chambers, including the blood transfusion of D-shapedChamber and blood drawing chamber, circular airbag chamber 11 and three circular trachea chambeies 12.The end in blood transfusion chamber and blood drawing chamber is respectively equipped withOstium venosum cordis and ostium arteriosum, in uniform three air bags 13 of the outer periphery of ostium arteriosum, air bag 13 is connected with airbag chamber 11.Airbag chamber 11It is located in the middle of the wall between blood drawing chamber and blood transfusion chamber, three trachea chambeies 12 are distributed in the tube wall of body 1.The appearance of body 1Face indicates scale.
Blood drawing chamber in body 1 with blood transfusion chamber be connected with two extension pipes 4 respectively by Triangulum 2, extension pipe 4 anotherEnd is connected with lengthening fixing pipe 7 by extension pipe joint 6, and the end lengthening fixing pipe 7 is provided with calparine cap 8.Set on Triangulum 2It is equipped with fixation clamp 3, extension pipe 4 is provided with vessel clamp 5.The end of body 1 is also associated with the airbag chamber being connected with airbag chamber 11Joint 9, and the gas-tpe fitting 10 being connected with trachea chamber 12, the other end in trachea chamber 12 is not communicated with the external world.
When being performed the operation using hemodialysis catheter of the present utility model, first pass through trachea chamber joint 10 into trachea chamber 12Blowing air, air bag 13 is in then compressive state, so, can be effectively increased bending resistance and the comprcssive strength of hemodialysis catheter, thus morePlus be easily inserted in patient vessel.After placing hemodialysis catheter, that is, release the air in trachea chamber 12, right to avoidBlood drawing chamber and blood transfusion chamber produce extruding, produce impact to hemodialysis procedure.And filled into airbag chamber 11 by airbag chamber joint 9Air, makes three air bags 13 of ostium arteriosum periphery expand, thus when preventing hemodialysis, the blood vessel wall at ostium arteriosum is blocked upPlug.
Embodiment two
It is with embodiment one difference, trachea chamber 12 is circular ring structure, and it is similarly positioned in the tube wall of body 1, such asShown in Fig. 3.
The hemodialysis catheter of this structure can fill more gases, so that its bending resistance and resistance to compression effect are brighterAobvious.