CN108853691A - A kind of central venous catheter - Google Patents
A kind of central venous catheter Download PDFInfo
- Publication number
- CN108853691A CN108853691A CN201810463764.2A CN201810463764A CN108853691A CN 108853691 A CN108853691 A CN 108853691A CN 201810463764 A CN201810463764 A CN 201810463764A CN 108853691 A CN108853691 A CN 108853691A
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- China
- Prior art keywords
- connector
- central venous
- venous catheter
- branched pipe
- extension tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/0028—Multi-lumen catheters with stationary elements characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0001—Catheters; Hollow probes for pressure measurement
- A61M2025/0002—Catheters; Hollow probes for pressure measurement with a pressure sensor at the distal end
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M2025/0037—Multi-lumen catheters with stationary elements characterized by lumina being arranged side-by-side
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M2039/0205—Access sites for injecting media
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
- A61M2039/0258—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body for vascular access, e.g. blood stream access
Abstract
The present invention provides a kind of central venous catheter, are related to the field of medical instrument technology.The central venous catheter includes a main pipe, at least one branched pipe and at least one extension tube；At least one is provided in main pipe along itself axially extending channel；The outlet end of any one branched pipe is connected to a channel, and the arrival end of any one branched pipe is connected to an extension tube；The arrival end of branched pipe is provided with a point connector, the outer connector that the outlet end of extension tube is provided with and connector is divided to cooperate；Adjustment divides connector and outer connector, branched pipe and extension tube can be made to be connected, block or separation.Central venous catheter of the invention, using dividing connector and outer connector to realize the conducting and closure of central venous catheter, traditional flow-stopping clip is substituted, the breakage that can prevent central venous catheter is dangerous, malpractice odds is reduced, the service life of medical instrument is extended.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of central venous catheter.
Background technique
Central venous catheter is in patient with severe symptoms's art and monitoring after operation, fluid infusion transfuse blood, input the important of various salvage drugs
Channel.Intensive care unit (Intensive Care Unit, ICU) inpatient is due to needing long-term infusion, input blood system
Product, receiving the peripheries such as intravenous nutrition treatment, venipuncture inevitably results in patient suffering repeatedly, in addition drug and high sepage
It is difficult that body etc. may cause peripheral blood vessel to puncture to the destruction of blood vessel, and central venous catheter is preferably to select at this time.
Central venous catheter generally includes following four types：Percutaneous puncture central venous catheter (CVC), through peripheral puncture
Central venous catheter (PICC), tunnel type central venous catheter (CVTC) and venous transfusion port (PORT).
Central venous catheter is inserted into the vein of patient, such as subclavian vein by puncture technique, is infused patient.
Fig. 1 is the appearance diagram of central venous catheter in the prior art.As shown in Figure 1, the central vein clinically used at present
Conduit will use the folder of flow-stopping clip 20 after liquid input and close connecting tube to prevent Hemostatic Oral Liquid outflow.And it is repeatedly used for a long flow-stopping clip 20
Carrying out fluid stopping operation is the Major Risk Factors for leading to the breakage of central venous catheter leading portion (clinical common similar situation occurs).One
Such situation occurs for denier, more renews pipe after central venous catheter need to being extracted and is placed in again, this not only gives clinical medical and nursing work belt
To think the difficulty of factor, it is also possible to bring serious pain to patient.
So how improving the structural design scheme of central venous catheter, reducing malpractice odds and extend
The service life of medical instrument is those skilled in the art's urgent problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of central venous catheter, are deposited with solving central venous catheter in the prior art
Central venous catheter in frequent conducting and fluid stopping operation caused leading portion be easy it is damaged, increase surgical procedure complexity,
Medical instrument service life is not long, brings the problem of unnecessary pain to patient.
To achieve the goals above, the present invention uses following technical scheme：
A kind of central venous catheter provided by the invention, including a main pipe, at least one branched pipe and at least one
Extension tube；At least one is provided in the main pipe along itself axially extending channel；The outlet of any one branched pipe
End is connected to a channel, and the arrival end of any one branched pipe is connected to an extension tube；The branched pipe
Arrival end be provided with a point connector, the outlet end of the extension tube is provided with and the outer connector for dividing connector to cooperate；
Divide connector and the outer connector described in adjustment, the branched pipe and the extension tube can be made to be connected, block or separation.
Based on the above technical solution, further, described to divide connector cylindrical, outer wall is provided with outer spiral shell
Line, axle center are provided with through-hole, and the through-hole is connected to the inner cavity of the branched pipe, and the through-hole is provided with water conservancy diversion gap；
The outer connector is cylindrical, and inner wall is provided with the internal screw thread being engaged with the external screw thread, axle center be provided with it is described
The identical pillar of through-hole, the side wall of the pillar are provided with deflector hole, and the deflector hole is connected to the inner cavity of the extension tube.It should
Technical solution has technical effect that：External screw thread and internal screw thread realize the connection and fractionation of branched pipe and extension tube, and are adjusting
During whole external screw thread and internal screw thread, when the deflector hole of pillar is directed at water conservancy diversion gap, medical fluid can flow to branch from extension tube
Pipe, and when the deflector hole of pillar leaves water conservancy diversion gap, is close to through-hole wall, it can block logical between extension tube and branched pipe
The fluid stopping of medical fluid is realized on road.
It based on the above technical solution, further, further include bulge loop and annular groove；The bulge loop is set to point company
The outer end face of connector, the annular groove are set to the outer end face of the outer connector, and the bulge loop and the annular groove coincide.The technology
Scheme has technical effect that：Bulge loop and annular groove mutually coincide, and enhance the sealing effect between point connector and outer connector.
Based on the above technical solution, the pillar and the through-hole are interference fitted.The technology of the technical solution is imitated
Fruit is：When pillar and through-hole are interference fitted, deflector hole can be bonded by the inner wall of through-hole and close, so that central venous catheter
Sealing effect it is more preferable.
On the basis of any of the above-described technical solution, further, the main pipe and whole branched pipes one at
Type.The technical solution has technical effect that：Integrally formed main pipe and branched pipe are not easy because of installation and size for connection
Error and the string chamber between incompatible medical fluid occurs.
On the basis of any of the above-described technical solution, further, the quantity in the channel, the quantity of the branched pipe and institute
The quantity for stating extension tube is 2~4.The technical solution has technical effect that：The main pipe in 2~4 channels can be simultaneously
Conveying while 4 kinds of medical fluids is carried out, incompatible problem between multiple-medicinal-liquid is prevented, substantially increases the suitable of central venous catheter
With property, also, when any one channel blocks, other alternate channels are replenished in time, improve in it is calm
The reliability of arteries and veins conduit.
It further include developing layer further on the basis of any of the above-described technical solution；The developing layer is arranged in the master
The lateral wall of conduit.The technical solution has technical effect that：The developing apparatus monitoring center that developing layer is conducive to outside is quiet
Arteries and veins conduit grasps the inner case of sufferer blood vessel conducive to medical staff in the intracorporal real time status of people, and takes in time corresponding
Measure.
It further include connector further on the basis of any of the above-described technical solution；All the branched pipe is built in institute
It states inside connector, it is described that connector is divided to be set to the connector shell.The technical solution has technical effect that：Connector
Branched pipe is unified at one, and multiple points of connectors are fixed to the shell of connector, medical staff is facilitated and fixes
Entire central venous catheter and selection suitably divide connector.
It based on the above technical solution, further, further include blood pressure detecting head and connection-peg, the blood pressure detecting head
It is set to end of the main pipe far from the connector, the connection-peg is set to the connector, the blood pressure detection
Head and connection-peg electrical connection.The technical solution has technical effect that：The end of main pipe is arranged in blood pressure detecting head, can
Real-time blood pressure dynamic is quickly and easily monitored, medical care equipment has been simplified, improves the operation effect of detection accuracy and clinical operation
Rate.Meanwhile connection-peg setting is in connector, medical staff use after external display grafting can real-time display sufferer vein
Blood pressure.
It based on the above technical solution, further, further include fixed-wing, the fixed-wing is set to the connector
Edge.The technical solution has technical effect that：Fixed-wing may be provided at the two sides of connector, facilitates operator to grab and takes,
It is more convenient for for central venous catheter being fixed on the body of sufferer.
The present invention has the advantages that：
Central venous catheter provided by the invention utilizes the conducting for dividing connector and outer connector realization central venous catheter
And closure, traditional flow-stopping clip is substituted, the breakage that can prevent central venous catheter is dangerous, reduces the several of malpractice generation
Rate extends the service life of medical instrument.
Additional technical feature and its advantage of the invention will illustrate more obvious in following description content, or pass through
Concrete practice of the invention is recognized that.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the specific embodiment of the invention, specific embodiment will be described below
Needed in attached drawing be briefly described.It should be evident that the accompanying drawings in the following description is some implementations of the invention
Mode for those of ordinary skill in the art without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the appearance diagram of central venous catheter in the prior art；
Fig. 2 is the appearance diagram for the central venous catheter that the embodiment of the present invention one provides；
Fig. 3 is the appearance diagram of central venous catheter provided by Embodiment 2 of the present invention；
The cross-section diagram of main pipe in the central venous catheter that Fig. 4 provides for the embodiment of the present invention one and embodiment two；
Fig. 5 is to divide connector and outer connector in the central venous catheter that provides of the embodiment of the present invention one and embodiment two
Connection schematic diagram；
Fig. 6 is to divide connector and outer connector in the central venous catheter that provides of the embodiment of the present invention one and embodiment two
Split schematic diagram.
Icon：1- main pipe；2- branched pipe；3- extension tube；The channel 4-；5- divides connector；The outer connector of 6-；The outer spiral shell of 7-
Line；8- through-hole；9- water conservancy diversion gap；10- internal screw thread；11- pillar；12- deflector hole；13- bulge loop；14- annular groove；15- developing layer；
16- connector；17- blood pressure detecting head；18- connection-peg；19- fixed-wing；20- flow-stopping clip.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
DESCRIPTION OF THE PRIOR ART：
In the prior art, central venous catheter is inserted into the vein of patient, such as subclavian vein by puncture technique, right
Patient is infused.Fig. 1 is the appearance diagram of central venous catheter in the prior art.As shown in Figure 1, clinically making at present
Central venous catheter will use the folder of flow-stopping clip 20 after liquid input and close connecting tube to prevent Hemostatic Oral Liquid outflow.And it is prolonged and repeated
Carrying out fluid stopping operation using flow-stopping clip 20 is to cause the Major Risk Factors of central venous catheter leading portion breakage (clinical common similar
Happen), once such situation occurs, more renew pipe after central venous catheter need to being extracted and be placed in again, this, which not only gives, faces
Bed medical and nursing work brings the difficulty for thinking factor, it is also possible to bring serious pain to patient.
Technical solution of the present invention is summarized：
Central venous catheter provided in this embodiment, including a main pipe 1, at least one branched pipe 2 and at least one
Extension tube 3.Wherein, at least one is provided in main pipe 1 along itself axially extending channel 4；The outlet of any one branched pipe 2
End is connected to a channel 4, and the arrival end of any one branched pipe 2 is connected to an extension tube 3；The arrival end of branched pipe 2 is arranged
There are point connector 5, the outer connector 6 that the outlet end of extension tube 3 is provided with and connector 5 is divided to cooperate；Adjustment divides connector 5 and outer
Connector 6 can make branched pipe 2 and extension tube 3 be connected, block or separation.
The technical solution of above-mentioned central venous catheter can preferably solve central venous catheter in the prior art and exist
Central venous catheter in frequent conducting and fluid stopping operation caused leading portion be easy it is damaged, increase surgical procedure complexity, doctor
Instrument service life is treated not grow, bring the problem of unnecessary pain to patient：Using dividing connector 5 and outer connector 6 real
The conducting and closure of existing central venous catheter, substitute traditional flow-stopping clip 20, and the breakage that can prevent central venous catheter is dangerous,
Malpractice odds is reduced, the service life of medical instrument is extended.
For above-mentioned prior art, below with reference to specific embodiment to skill of the invention
Explanation is further explained in art scheme：
Embodiment one：
A kind of central venous catheter is present embodiments provided, wherein：Fig. 2 is the central vein that the embodiment of the present invention one provides
The appearance diagram of conduit, Fig. 4 are the disconnected of main pipe 1 in the central venous catheter that provides of the embodiment of the present invention one and embodiment two
Face figure；Fig. 5 is to divide connector 5 and outer connector 6 in the central venous catheter that provides of the embodiment of the present invention one and embodiment two
Connection schematic diagram；Divide connector 5 and outer connection in the central venous catheter that Fig. 6 provides for the embodiment of the present invention one and embodiment two
First 6 fractionation schematic diagram.As shown in Fig. 2,4,5,6, central venous catheter includes a main pipe 1,2 and of at least one branched pipe
At least one extension tube 3.Specifically, at least one is provided in main pipe 1 along itself axially extending channel 4；Any one point
The outlet end of branch pipe 2 is connected to a channel 4, and the arrival end of any one branched pipe 2 is connected to an extension tube 3；Branched pipe 2
Arrival end is provided with point connector 5, the outer connector 6 that the outlet end of extension tube 3 is provided with and connector 5 is divided to cooperate；Adjustment point
Connector 5 and outer connector 6 can make branched pipe 2 and extension tube 3 be connected, block or separation.
As shown in Fig. 2,5,6, further, divide connector 5 cylindrical, outer wall is provided with external screw thread 7, and axle center is set
It is equipped with through-hole 8, through-hole 8 is connected to the inner cavity of branched pipe 2, and through-hole 8 is provided with water conservancy diversion gap 9；Outer connector 6 is cylindrical,
Its inner wall is provided with the internal screw thread 10 being engaged with external screw thread 7, and axle center is provided with the pillar 11 coincideing with through-hole 8, pillar 11
Side wall is provided with deflector hole 12, and deflector hole 12 is connected to the inner cavity of extension tube 3.In the central venous catheter of the structure, external screw thread 7
The connection and fractionation of branched pipe 2 and extension tube 3 are realized with internal screw thread 10, and in the process of adjustment external screw thread 7 and internal screw thread 10
In, when the deflector hole 12 of pillar 11 is directed at water conservancy diversion gap 9, medical fluid can flow to branched pipe 2 from extension tube 3, and when pillar 11
When deflector hole 12 leaves water conservancy diversion gap 9, is close to 8 inner wall of through-hole, the access between extension tube 3 and branched pipe 2 can be blocked, realizes medicine
The fluid stopping of liquid.
It as shown in Figure 5,6, further, further include bulge loop 13 and annular groove 14；Bulge loop 13 is set to the outer end of point connector 5
Face, annular groove 14 are set to the outer end face of outer connector 6, and bulge loop 13 and annular groove 14 coincide.It is convex in the central venous catheter of the structure
Ring 13 and annular groove 14 mutually coincide, and enhance the sealing effect between point connector 5 and outer connector 6.
As shown in Figure 5,6, further, pillar 11 and through-hole 8 are interference fitted.It is convex in the central venous catheter of the structure
When column 11 and through-hole 8 are interference fitted, deflector hole 12 can be bonded by the inner wall of through-hole 8 and close, so that central venous catheter
Sealing effect is more preferable.
As shown in Fig. 2, further, main pipe 1 and whole branched pipes 2 are integrally formed.The central vein of the structure is led
Guan Zhong, integrally formed main pipe 1 and branched pipe 2 are not easy that incompatible medicine occurs because of the error of installation and size for connection
String chamber between liquid.
As shown in Fig. 2, further, the quantity of the quantity in channel 4, the quantity of branched pipe 2 and extension tube 3 is 2~4
It is a.In the central venous catheter of the structure, the main pipe 1 in 2~4 channels 4 can carry out conveying while 4 kinds of medical fluids simultaneously,
Incompatible problem between multiple-medicinal-liquid is prevented, substantially increases the applicability of central venous catheter, also, arbitrarily wherein one
When a channel 4 blocks, other alternate channels 4 are replenished in time, and improve the reliability of central venous catheter.
It as shown in Figure 2,4, further, further include developing layer 15；The lateral wall of main pipe 1 is arranged in developing layer 15.It should
In the central venous catheter of structure, the developing apparatus monitoring center ductus venosus that developing layer 15 is conducive to outside is intracorporal in people
Real time status, the inner case of sufferer blood vessel is grasped conducive to medical staff, and takes corresponding measure in time.
Embodiment two：
A kind of central venous catheter is present embodiments provided, wherein：Fig. 3 is central vein provided by Embodiment 2 of the present invention
The appearance diagram of conduit；Main pipe 1 is disconnected in the central venous catheter that Fig. 4 provides for the embodiment of the present invention one and embodiment two
Face figure；Fig. 5 is to divide connector 5 and outer connector 6 in the central venous catheter that provides of the embodiment of the present invention one and embodiment two
Connection schematic diagram；Divide connector 5 and outer connection in the central venous catheter that Fig. 6 provides for the embodiment of the present invention one and embodiment two
First 6 fractionation schematic diagram.As illustrated in figures 3-6, central venous catheter includes a main pipe 1, at least one branched pipe 2 and extremely
A few extension tube 3.Specifically, at least one is provided in main pipe 1 along itself axially extending channel 4；Any one branch
The outlet end of pipe 2 is connected to a channel 4, and the arrival end of any one branched pipe 2 is connected to an extension tube 3；Branched pipe 2 enters
Mouth end is provided with point connector 5, the outer connector 6 that the outlet end of extension tube 3 is provided with and connector 5 is divided to cooperate；Adjustment divides company
Connector 5 and outer connector 6 can make branched pipe 2 and extension tube 3 be connected, block or separation.
As shown in figure 3, further including connector 16 further；Whole branched pipes 2 are built in inside connector 16, divide company
Connector 5 is set to 16 shell of connector.In the central venous catheter of the structure, connector 16 is unified in branched pipe 2 at one, and
Multiple points of connectors 5 are fixed to the shell of connector 16, facilitate the fixed entire central venous catheter of medical staff and
It selects and suitably divides connector 5.
As shown in figure 3, further including blood pressure detecting head 17 and connection-peg 18 further, blood pressure detecting head 17 is set to master
End of the conduit 1 far from connector 16, connection-peg 18 are set to connector 16, and blood pressure detecting head 17 and connection-peg 18 are electrically connected.
In the central venous catheter of the structure, the end of main pipe 1 is arranged in blood pressure detecting head 17, can quickly and easily monitor in real time
Blood pressure dynamic, has simplified medical care equipment, has improved the operating efficiency of detection accuracy and clinical operation.Meanwhile connection-peg 18 is arranged
In connector 16, medical staff use after external display grafting can real-time display sufferer venous pressure.
As shown in figure 3, further including fixed-wing 19 further, fixed-wing 19 is set to the edge of connector 16.The structure
Central venous catheter in, fixed-wing 19 may be provided at the two sides of connector 16, facilitates operator to grab and takes, and also be more convenient for center
Ductus venosus is fixed on the body of sufferer.
The technical characteristic not conflicted with embodiment two having in embodiment one, also optionally in example 2 according to reality
Border needs to select.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of central venous catheter, which is characterized in that including a main pipe, at least one branched pipe and at least one extension
Pipe；
At least one is provided in the main pipe along itself axially extending channel；
The outlet end of any one branched pipe is connected to a channel, the arrival end of any one branched pipe and one
The extension tube connection；
The arrival end of the branched pipe is provided with a point connector, and the outlet end of the extension tube is provided with divides connector to match with described
The outer connector closed；Divide connector and the outer connector described in adjustment, the branched pipe and the extension tube can be made to be connected,
It blocks or separates.
2. central venous catheter according to claim 1, which is characterized in that
Described point of connector is cylindrical, and outer wall is provided with external screw thread, and axle center is provided with through-hole, the through-hole with described point
The inner cavity of branch pipe is connected to, and the through-hole is provided with water conservancy diversion gap；
The outer connector is cylindrical, and inner wall is provided with the internal screw thread being engaged with the external screw thread, axle center be provided with
The identical pillar of the through-hole, the side wall of the pillar are provided with deflector hole, the inner cavity company of the deflector hole and the extension tube
It is logical.
3. central venous catheter according to claim 2, which is characterized in that further include bulge loop and annular groove；The bulge loop is set
It is placed in the outer end face for dividing connector, the annular groove is set to the outer end face of the outer connector, the bulge loop and the ring
Slot coincide.
4. central venous catheter according to claim 2, which is characterized in that the pillar and the through-hole are interference fitted.
5. central venous catheter according to claim 1, which is characterized in that the main pipe and whole branched pipes
It is integrally formed.
6. central venous catheter according to claim 1, which is characterized in that the quantity in the channel, the branched pipe
The quantity of quantity and the extension tube is 2~4.
7. central venous catheter according to claim 1, which is characterized in that further include developing layer；The developing layer setting
In the lateral wall of the main pipe.
8. described in any item central venous catheter according to claim 1~7, which is characterized in that further include connector；Whole institutes
Branched pipe is stated to be built in inside the connector, it is described that connector is divided to be set to the connector shell.
9. central venous catheter according to claim 8, which is characterized in that further include blood pressure detecting head and connection-peg, institute
It states blood pressure detecting head and is set to end of the main pipe far from the connector, the connection-peg is set to the connector,
The blood pressure detecting head and connection-peg electrical connection.
10. central venous catheter according to claim 8, which is characterized in that it further include fixed-wing, the fixed-wing setting
In the edge of the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810463764.2A CN108853691A (en) | 2018-05-15 | 2018-05-15 | A kind of central venous catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810463764.2A CN108853691A (en) | 2018-05-15 | 2018-05-15 | A kind of central venous catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108853691A true CN108853691A (en) | 2018-11-23 |
Family
ID=64334428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810463764.2A Pending CN108853691A (en) | 2018-05-15 | 2018-05-15 | A kind of central venous catheter |
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| CN (1) | CN108853691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112237459A (en) * | 2020-10-20 | 2021-01-19 | 中国医学科学院北京协和医院 | Air bag type ligation device with multiple rubber rings applied to transparent cap |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112237459A (en) * | 2020-10-20 | 2021-01-19 | 中国医学科学院北京协和医院 | Air bag type ligation device with multiple rubber rings applied to transparent cap |
| CN112237459B (en) * | 2020-10-20 | 2021-08-31 | 中国医学科学院北京协和医院 | Air bag type ligation device with multiple rubber rings applied to transparent cap |
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Effective date of abandoning: 20210730 |