CN209173055U - A kind of hemodialysis catheter punctured - Google Patents

A kind of hemodialysis catheter punctured Download PDF

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Publication number
CN209173055U
CN209173055U CN201821102251.0U CN201821102251U CN209173055U CN 209173055 U CN209173055 U CN 209173055U CN 201821102251 U CN201821102251 U CN 201821102251U CN 209173055 U CN209173055 U CN 209173055U
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China
Prior art keywords
conduit
blood vessel
puncture needle
outside
punctured
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Active
Application number
CN201821102251.0U
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Chinese (zh)
Inventor
曹明燕
王虹
蒲涛
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Affiliated Hospital of Zunyi Medical University
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Affiliated Hospital of Zunyi Medical University
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Priority to CN201821102251.0U priority Critical patent/CN209173055U/en
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Abstract

The utility model belongs to the field of medical instrument technology, discloses a kind of hemodialysis catheter that can be punctured, is provided with puncture needle;Puncture needle tail end has been connected through a screw thread conduit, integrated molding has multiple protrusions on the outside of puncture needle and catheter proximal end, being glued on the outside of conduit has air bag, conduit is divided into blood vessel out on rear side of air bag and into blood vessel, out blood vessel and connector is all socketed with into blood vessel tail end, it is connected with newel inside connector, the knob in newel and outside is cementing, and newel center offers through-hole.The utility model is provided with protrusion, and vascular wall can be prevented too tight, so that the through-hole on the outside of puncture needle and conduit blocks, influences to dialyse, and puncture needle tail end is connect by screw thread with conduit, can split placement, and storage is convenient;It is provided with air bag, buffer function can be played when being punctured, prevents piercing too deep, conduit, which is pierced into rear gasbag, may also function as the protective effect to wound, prevent infected wound.

Description

A kind of hemodialysis catheter punctured
Technical field
The utility model belongs to the field of medical instrument technology, more particularly to a kind of hemodialysis catheter that can be punctured.
Background technique
Currently, the prior art commonly used in the trade is such that
Blood purification technology refers to the general name of the various methods for continuously or discontinuously removing excessive in vivo moisture, solute etc., We are often called haemodialysis in daily life.The method of blood purification includes renal replacement therapies, blood perfusion, is immunized Absorption, Endotoxin adsorption and plasma exchange etc..Each blood purification mode all respectively has feature, and respectively be suitable for various disease or Various disease state.But no matter which type of blood purification, it is necessary to first establish effective venous channel, also known as blood is logical Road is drawn the blood of patient's body from arterial end, is input in human body by vein end again after purging in vitro is handled.Therefore Establishing effectively unobstructed blood access is the primary condition for realizing blood purification.
Haemodialysis is one of acute or chronic renal failure kidneys of patients Replacement Therapy.It is by drawing internal blood Flow to it is external, through one by the dialyzer that forms without several hollow fibres, blood electrolyte similar with concentration containing body is molten Liquid (dialyzate) carries out mass exchange inside and outside hollow fibre one by one, through disperse/convection current, remove intracorporal metabolic waste, Maintain electrolyte and acid-base balance;Moisture excessive in vivo is removed simultaneously, and will be by the whole process of the blood recovery purified Referred to as haemodialysis.Existing hemodialysis catheter does not have retention device when being punctured in patient body on the outside of conduit, it is not easy to Paracentesis depth is grasped, dialysis-effect is influenced when too shallow, when too deep, increases the pain of patient, while also reducing the work of doctor Make efficiency, and the closing of existing conduit is all that switch control is carried out by the buckle of kneading, this buckle after fixation, is led Both sides of the edge can not be fixed too close inside pipe, be easy to cause bacterium to enter, pollute to catheter interior.
In conclusion problem of the existing technology is:
(1) there is no retention device on the outside of existing hemodialysis catheter, it is not easy to grasp paracentesis depth;
(2) existing catheter switch control buckle is easy to lead in use, catheter interior both sides of the edge can not be fixed too close It causes bacterium to enter, catheter interior is polluted.
Summary of the invention
In view of the problems of the existing technology, the utility model provides a kind of hemodialysis catheter that can be punctured.
The utility model is realized in this way a kind of hemodialysis catheter punctured is provided with puncture needle;
Puncture needle tail end has been connected through a screw thread conduit, and integrated molding has multiple convex on the outside of puncture needle and catheter proximal end Rise, being glued on the outside of conduit has air bag, and conduit is divided into blood vessel out on rear side of air bag and into blood vessel, out blood vessel and into blood vessel tail end all It is socketed with connector.
The utility model is provided with protrusion, and vascular wall can be prevented too tight, so that the through-hole on the outside of puncture needle and conduit is stifled Plug, influences to dialyse, and puncture needle tail end is connect by screw thread with conduit, can split placement, and storage is convenient;It is provided with air bag, it can To play buffer function when being punctured, prevent piercing too deep, conduit, which is pierced into rear gasbag, may also function as the work of the protection to wound With preventing infected wound.
Further, it is connected with newel inside connector, the knob in newel and outside is cementing, and newel center offers Through-hole.
The connector of the utility model uses rotational communication mode, compared to traditional kneading buckle can effectively pre- bacteriological protection into Enter, preventing from accidentally touching leads to buckle flick, highly-safe.
Further, blood vessel and fixed patch has been sticked into blood vessel two sides out.
The utility model will go out blood vessel and separately fix into blood vessel, fixation, when preventing from fixing simultaneously, after side is unclamped Drive the other side that can not also fix.
Further, puncture needle tip is round blunt shape tip.
The utility model can prevent from puncturing vascular wall in puncture process by round blunt shape tip puncture needle, reduce meaning Outer generation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the hemodialysis catheter provided by the embodiment of the utility model punctured;
Fig. 2 is connector structural schematic diagram provided by the embodiment of the utility model;
Fig. 3 is puncture needle structure schematic diagram provided by the embodiment of the utility model;
In figure: 1, puncture needle;2, conduit;3, air bag;4, go out blood vessel;5, into blood vessel;6, fixed patch;7, connector;8, convex It rises;9, knob;10, newel;11, through-hole.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates Detailed description are as follows for attached drawing.
The structure of the utility model is explained in detail with reference to the accompanying drawing.
As shown in Figure 1 to Figure 3, the hemodialysis catheter provided by the embodiment of the utility model punctured includes: puncture needle 1, conduit 2, air bag 3, go out blood vessel 4, into blood vessel 5, fixed patch 6, connector 7, raised 8, knob 9, newel 10, through-hole 11.
1 tail end of puncture needle has been connected through a screw thread conduit 2, and puncture needle 1 and 2 front end outer side integrated molding of conduit have multiple Protrusion 8, being glued on the outside of conduit 2 has air bag 3, and conduit 2 is divided into blood vessel 4 out on rear side of air bag 3 and into blood vessel 5, out blood vessel 4 and into blood 5 tail end of pipe is all socketed with connector 7.
As a preferred embodiment, newel 10 is connected with inside connector 7, newel 10 and the knob 9 in outside are cementing, in 10 center of stem offers through-hole 11.
As a preferred embodiment, blood vessel 4 and fixed patch 6 has been sticked into 5 two sides of blood vessel out.
As a preferred embodiment, 1 tip of puncture needle is round blunt shape tip.
In use, puncture needle 1 is threadably secured to 2 head end of conduit, conduit 2 is brought into vivo by puncture needle 1, It is punctured to subject to the position of air bag 3, conduit 3, will be into blood vessel 5 and bleeding by fixed patch 6 as the general pipeline for carrying out haemodialysis Pipe 4 is separately fixed on the surface of skin, and the connector 7 by going out 4 outside of blood vessel is connect with external equipment to carry out intracorporal blood Liquid extraction carries out dialysis operation, connect the blood for carrying out having dialysed with external equipment by the connector 7 into 5 outside of blood vessel and leads Enter into conduit 2, and then imported into inside of human body, the court of 10 inner via hole 11 of newel is adjusted by the knob 9 of rotary connecting joint 7 To, to control the switch of connector 7, it is in an open state when through-hole 11, which is rotated to, to be connected to the conduit of two sides, when Through-hole 11 is in off state when rotating to vertical with the conduit of two sides.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with Modification, is all within the scope of the technical scheme of the utility model.

Claims (4)

1. the hemodialysis catheter that one kind can puncture, which is characterized in that the hemodialysis catheter punctured is provided with puncture Needle;
Puncture needle tail end has been connected through a screw thread conduit, and integrated molding has multiple protrusions on the outside of puncture needle and catheter proximal end, leads Being glued on the outside of pipe has air bag, and conduit is divided into blood vessel out on rear side of air bag and into blood vessel, blood vessel and is all socketed into blood vessel tail end out There is connector.
2. the hemodialysis catheter that can be punctured as described in claim 1, which is characterized in that newel is connected with inside connector, Newel and the knob in outside are cementing, and newel center offers through-hole.
3. the hemodialysis catheter that can be punctured as described in claim 1, which is characterized in that go out blood vessel and sticked into blood vessel two sides There is fixed patch.
4. the hemodialysis catheter that can be punctured as described in claim 1, which is characterized in that puncture needle tip is round blunt shape tip.
CN201821102251.0U 2018-07-12 2018-07-12 A kind of hemodialysis catheter punctured Active CN209173055U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821102251.0U CN209173055U (en) 2018-07-12 2018-07-12 A kind of hemodialysis catheter punctured

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821102251.0U CN209173055U (en) 2018-07-12 2018-07-12 A kind of hemodialysis catheter punctured

Publications (1)

Publication Number Publication Date
CN209173055U true CN209173055U (en) 2019-07-30

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Application Number Title Priority Date Filing Date
CN201821102251.0U Active CN209173055U (en) 2018-07-12 2018-07-12 A kind of hemodialysis catheter punctured

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110772676A (en) * 2019-11-20 2020-02-11 上海交通大学医学院附属上海儿童医学中心 Prevent stifled anti-drop peritoneal dialysis pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110772676A (en) * 2019-11-20 2020-02-11 上海交通大学医学院附属上海儿童医学中心 Prevent stifled anti-drop peritoneal dialysis pipe

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