CN213252454U

CN213252454U - Double-stage double-channel cannula

Info

Publication number: CN213252454U
Application number: CN202021855779.2U
Authority: CN
Inventors: 贡忠良; 谢斌; 沈雅
Original assignee: Changzhou Longlaifu Medical Material Co ltd
Current assignee: Changzhou Longlaifu Medical Material Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-25
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a two-stage double-channel intubation, which comprises an outer tube and an inner tube, wherein a support ring is arranged between the butt joint tube and the outer tube, a liquid flow channel surrounding the butt joint tube annular array is arranged on the support ring, the length of the butt joint tube is less than that of the outer tube, one end of the butt joint tube is aligned with the front end of the outer tube, the front end and the rear end of the outer tube are respectively provided with a plug and a butt joint, the outer tube is provided with a multi-head channel body arranged close to the butt joint, and the outer tube is provided with a flow guide hole covered by the multi-head channel body; the utility model has the advantages that: when an operation is carried out, the outer body can be inserted into a main trunk blood vessel, then the inner body is butted with the outer body, the outer end of the inner body is inserted into a branch blood vessel, when the number of blood vessels needing to be butted is large, one end of the hose can be selected to be connected with the multi-head channel body, the other end of the hose is inserted into the blood vessel, an extracorporeal blood flow network can be completed, and the number of incisions required by a body is reduced.

Description

Double-stage double-channel cannula

Technical Field

The utility model belongs to the field of medical transfer lines, concretely relates to a doublestage bi-pass intubate.

Background

During the operation, the extracorporeal blood circulation is often needed to be established, however, the blood vessels of the human body are arranged in a complex network shape, so that sometimes during the extracorporeal blood circulation establishment, a plurality of cannulas are needed, the number of openings on the body is relatively increased, and during the operation, if the number of the incisions is increased, the potential safety hazard caused by the increase of the number of the incisions is relatively increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduce the doublestage bi-channel intubate that the operation can be accomplished to the health incision.

In order to achieve the purpose, the technical proposal adopted by the utility model is that the two-stage double-channel cannula comprises an outer tube body and an inner tube body, the structure is characterized in that a butt joint pipe body is arranged in the outer pipe body, a supporting ring is arranged between the butt joint pipe body and the outer pipe body, liquid flow channels which surround the butt joint pipe body in an annular array are arranged on the supporting ring, the length of the butt joint pipe body is less than that of the outer pipe body, one end of the butt joint pipe body is aligned with the front end of the outer pipe body, the front end and the rear end of the outer pipe body are respectively provided with a plug and a butt joint, the outer pipe body is provided with a multi-head passage body which is close to the butt joint, the outer pipe body is provided with a flow guide hole which is covered by the multi-head passage body, the inner pipe body comprises an outer connecting pipe and an inner inserting pipe inserted by a butt joint, the tail end of the inner inserting pipe is tightly inserted by the end part of the butt joint pipe body, and a flexible transition pipe is arranged between the inner inserting pipe and the outer connecting pipe.

Furthermore, the butt joint comprises an annular body inserted from the end part of the outer pipe body, the annular body is provided with an external thread arranged close to the end part, the annular body is screwed with a locking ring through the external thread, and the annular body is provided with a sealing sleeve positioned in the middle.

Furthermore, be provided with the location muscle that is close to the butt joint setting on the inner wall of outer body, the location muscle is several and several location muscle sets up around the central axis of outer body, and the width of location muscle equals the distance between the outer wall of butt joint body to the inner wall of outer body.

Furthermore, the multi-head channel body comprises an outer cylinder body with the diameter larger than that of the outer cylinder body, blocking ring bodies fixed with the outer cylinder body are arranged at two ends of the outer cylinder body, and a circular tube head which is arranged around the outer cylinder body and extends outwards in the radial direction is arranged on the outer cylinder body.

Furthermore, the flexible transition pipe comprises an elastic pipe and a silicone pipe which are fixed with the end faces of the inner inserting pipe and the outer connecting pipe.

Compared with the prior art, the beneficial effects of the utility model are that: when an operation is carried out, the outer body can be inserted into a main trunk blood vessel, then the inner body is butted with the outer body, the outer end of the inner body is inserted into a branch blood vessel, when the number of blood vessels needing to be butted is large, one end of the hose can be selected to be connected with the multi-head channel body, the other end of the hose is inserted into the blood vessel, an extracorporeal blood flow network can be completed, and the number of incisions required by a body is reduced.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

FIG. 2 is a schematic view of the butt joint structure of the present invention;

fig. 3 is a schematic structural view of the multi-head passage body of the present invention;

fig. 4 is a schematic view of the structure of the flexible transition tube of the present invention;

the flexible blood flow tube comprises an outer tube body 1, a butt joint tube body 2, an auxiliary blood flow channel 3, a supporting ring 4, a liquid flow channel 5, a plug 6, a butt joint 7, a through hole 8, a flow guide hole 9, an outer tube 10, an inner tube 11, a flexible transition tube 12, an annular body 13, an outer thread 14, a locking ring 15, a sealing sleeve 16, an outer tube body 17, a blocking ring body 18, a round tube head 19, an elastic tube 20 and a silicone tube 21.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1 to 4, a two-stage two-channel cannula comprises an outer tube 1 and an inner tube, wherein a butt-joint tube 2 is arranged in the outer tube 1, a secondary blood flow channel 3 is formed between the butt-joint tube 2 and the outer tube 1, a support ring 4 is arranged between the butt-joint tube 2 and the outer tube 1, a liquid flow channel 5 surrounding the butt-joint tube 2 in an annular array is arranged on the support ring 4, the length of the butt-joint tube 2 is less than that of the outer tube 1, one end of the butt-joint tube 2 is aligned with the front end of the outer tube 1, a plug 6 and a butt-joint 7 are respectively arranged at the front end and the rear end of the outer tube 1, a through hole 8 communicated with the secondary blood flow channel 3 is arranged on the plug 6, a multi-channel body arranged close to the butt-joint 7 is arranged on the outer tube 1, a flow guide hole 9 covered by the multi-channel body is arranged on the outer tube 1, the inner tube comprises an outer tube 10, the tail end of the inner insertion tube 11 is tightly inserted from the end of the butt joint tube body 2, the flexible transition tube 12 is arranged between the inner insertion tube 11 and the outer connection tube 10, when an operation is performed, the outer tube 1 can be inserted into a trunk blood vessel, then the inner tube is butt jointed with the outer tube 1, the outer end of the inner tube is inserted into the branch blood vessel, when the number of blood vessels needing butt joint is large, one end of the flexible tube can be selected to be connected with the multi-head channel body, the other end of the flexible tube is inserted into the blood vessel, the blood flow network in vitro can be completed, the number of incisions needed by the body is reduced,

the butt joint 7 comprises an annular body 13 inserted from the end part of the outer tube body 1, an external thread 14 arranged close to the end part is arranged on the annular body 13, a position locking ring 15 is screwed on the external thread 14, a sealing sleeve 16 positioned in the middle is arranged on the annular body 13, and after the annular body 13 is inserted from the outer tube body 1, the position locking ring 15 is displaced through the rotation of the position locking ring 15, so that the annular body 13 is limited, and the insertion depth is avoided.

In addition, the inner wall of the outer tube body 1 is provided with a plurality of positioning ribs 16 which are arranged close to the butt joint 7, the positioning ribs 16 are arranged around the central axis of the outer tube body 1, the width of each positioning rib 16 is equal to the distance between the outer wall of the butt joint tube body 2 and the inner wall of the outer tube body 1, and the stability of the inner insertion tube 11 in the process of being inserted into the outer tube body 1 can be improved through the arrangement of the positioning ribs 16.

And when a plurality of pipelines are needed to be docked, because the multi-head passage body includes the outer barrel 17 that the diameter is greater than outer barrel 1, the both ends of outer barrel 17 are equipped with the block ring body 18 fixed with outer barrel 1, be provided with on the outer barrel 17 around the setting of outer barrel 1 and outside radial extension's pipe head 19, can match at ordinary times on the pipe head 19 and seal the jam, according to the quantity of the pipeline that uses when needs use, take off the back with corresponding shutoff stopper, with the pot head on pipe head 19 of pipeline, blood flows into outer barrel 1 back by the blood flow passageway this moment, the rethread water conservancy diversion hole 9 flows into in the outer barrel 17, then flow out through pipe head 19.

The flexible transition tube 12 comprises an elastic tube 20 and a silicone tube 21 which are fixed with the end faces of the inner tube 11 and the outer tube 10, so that the part of the inner tube body outside the outer tube body 1 can be bent conveniently, and the use is convenient.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a doublestage dual-channel intubate, includes outer body and interior body, its characterized in that: the multi-head channel type flexible transition pipe is characterized in that a butt joint pipe body is arranged in the outer pipe body, a supporting ring is arranged between the butt joint pipe body and the outer pipe body, a liquid flow channel surrounding the butt joint pipe body in an annular array is arranged on the supporting ring, the length of the butt joint pipe body is smaller than that of the outer pipe body, one end of the butt joint pipe body is aligned with the front end of the outer pipe body, a plug and a butt joint are respectively arranged at the front end and the rear end of the outer pipe body, a multi-head channel body close to the butt joint is arranged on the outer pipe body, a flow guide hole covered by a cage of the multi-head channel body is arranged on the outer pipe body, the inner pipe body comprises an outer pipe and an inner pipe inserted by the butt joint, the tail end of.

2. The dual-stage dual-channel cannula of claim 1, wherein: the butt joint comprises an annular body inserted from the end part of the outer pipe body, the annular body is provided with an external thread arranged close to the end part and screwed with a position locking ring through the external thread, and the annular body is provided with a sealing sleeve positioned in the middle.

3. The dual-stage dual-channel cannula of claim 1, wherein: the inner wall of outer body on be provided with the location muscle that is close to the butt joint setting, the location muscle is several and several location muscle and sets up around the central axis of outer body, the width of location muscle equals the distance between the outer wall of butt joint body to the inner wall of outer body.

4. The dual-stage dual-channel cannula of claim 1, wherein: the multi-head path body comprises an outer barrel body, the diameter of the outer barrel body is larger than that of the outer barrel body, blocking ring bodies fixed with the outer barrel body are arranged at two ends of the outer barrel body, and a circular tube head which is arranged around the outer barrel body and extends outwards in the radial direction is arranged on the outer barrel body.

5. The dual-stage dual-channel cannula of claim 1, wherein: the flexible transition pipe comprises an elastic pipe and a silicone pipe which are fixed with the end faces of the inner inserting pipe and the outer connecting pipe.