CN209713828U

CN209713828U - Two-chamber venous transfusion port

Info

Publication number: CN209713828U
Application number: CN201820895290.4U
Authority: CN
Inventors: 谢宗贵; 谢博宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-08
Filing date: 2018-06-08
Publication date: 2019-12-03
Anticipated expiration: 2028-06-08

Abstract

A kind of two-chamber venous transfusion port, the transfusion port includes transfusion catheter and by the molding columned port body of medical silica-gel, port body has cavity, the both ends of port body are hemispherical, the cavity is provided with diaphragm and separates the cavity into two chambers, the diaphragm has the micropore that penetrates through for liquid, transfusion catheter be connected to the port body one end and one of chamber.Convenient for operation implantation, operative incision is small at the two-chamber venous transfusion port, convenient for puncturing transfusion operation, and the risk of thrombotic risk and secondary infection can be effectively reduced.

Description

Two-chamber venous transfusion port

Technical field

The utility model relates to for venous transfusion device and intravenous transfusion methods more particularly to one kind be imbedded at patient The subcutaneous two-chamber venous transfusion port for being used for venous transfusion.

Background technique

Referring to Fig.1, venous transfusion port is the device for being imbedded at patient and being subcutaneously used for venous transfusion comprising port body and connection The transfusion catheter of body at port passes through its transfusion catheter and central vein (subclavian vein, neck in application, being imbedded at subcutaneously Vein etc.) connection.When venous transfusion, venous transfusion pin puncture enters port body, and it is logical to set up infusion by port body and transfusion catheter Road.The input of its intravenous chemotherapy drug, nutrient liquid for being widely used in malignant tumor patient, it is long-term to be also used for non-tumour patient The case where needing venous transfusion.

The port body at traditional venous transfusion port be the bottom case being made by polythene material and as puncture face silica gel face-piece it is close Envelope combination is constituted, and configuration design is flat circle, triangle or polygon.Such configuration design causes puncture area small, behaviour It makes comparisons difficulty, is embedded to subcutaneous operative incision and needs 3cm or more, and port body cannot reverse needs level and implant.For This, inventor devises a kind of full-implantation type venous transfusion port, reference can be made to the China that notification number is CN206007700U is practical new Type patent, the full-implantation type venous transfusion port include columned port body and transfusion catheter, and port body has cavity, the both ends of port body Hemispherical, one end has the interconnecting piece of taper, and interconnecting piece has through-hole, through-hole and cavity connection, and interconnecting piece is inserted into connection In transfusion catheter.Since port body is cylindric medical silica-gel material, transfusion catheter is made of silica gel or polythene material, entire port Body can be used as the entry point that puncture needle enters body cavity, greatly improve one-time successful puncture rate when transfusion operation.It is cylindric to set Meter also makes transfusion port overall volume become smaller, notch very little when being implanted into human body, and does not need to put as flat port body Positive position makes it easier in implantation human body；It is connect by interconnecting piece with transfusion catheter, so that port body is easier and transfusion catheter Connection.

In further research and practice, inventor is it has furthermore been found that there is also following skills at existing venous transfusion port Art defect: 1, transfusion port is chronically implanted in vivo, and the transfusion catheter of port intracoelomic cavity and implantation is communicated with vein, is had thrombosed Risk brings very big inconvenience to patient so regular heparin saline is needed to rinse access.2, transfusion port repeatedly punctures that there are secondary The risk of infection, forms septicemia when serious, need to take out transfusion port.

Utility model content

The purpose of the utility model is to provide a kind of two-chamber venous transfusion port, which is not only convenient for performing the operation Implantation, surgical injury is small, convenient for puncturing transfusion operation, and the risk for generating thrombotic risk and secondary infection can be effectively reduced.

In order to achieve the above object, the technical solution adopted in the utility model is as follows:

A kind of two-chamber venous transfusion port comprising transfusion catheter and by the molding columned port body of medical silica-gel, it is described Port body has cavity, and the both ends of the port body are hemispherical, in which: the cavity is provided with diaphragm, and the diaphragm is by the chamber Body is divided into two chambers, and the diaphragm has the micropore penetrated through for liquid, and the transfusion catheter is connected to the port body One end and one of chamber.

Preferably, the diaphragm be pellosil, the pellosil with a thickness of 1.0-1.5mm.

Preferably, the outer surface of the port body corresponds to and is provided with identification rings at the diaphragm.

Preferably, the identification rings are becket, outwardly protrusion of the identification rings from port body.

Preferably, the transfusion catheter and the port body are provided with the connector of tubulose, connector tool in connecting pin respectively There are helicitic texture or buckle structure, the transfusion catheter and the port body are detachably connected by the connector.

Preferably, the transfusion catheter is that medical silica-gel material transfusion catheter or polythene material transfusion catheter, infusion are led The outer diameter of pipe is 4-7F, length 130-160mm, and the internal diameter of the port body is 7-9mm, length 35-40mm, wall thickness 2- 3mm, the length for the chamber being connected to transfusion catheter are 25-30mm.

Compared with prior art, the utility model at least has the advantages that

Since port body uses the molding columned port body of medical silica-gel material, significantly increases puncture needle and enter body cavity Entry point greatly improves one-time successful puncture rate when transfusion operation.Cylindrical design also makes transfusion port overall volume become smaller, and plants Notch very little when entering in human body, and do not need to put on right position as flat port body, it makes it easier in implantation human body.

Since cavity is divided into two chambers by the diaphragm with micropore, close to rear end chamber storage anti-coagulants or Antibacterial agent, anti-coagulants or antibacterial agent can slow release enter the chamber of front end and transfusion catheter and then enter vein and port body Around tissue, can prevent thrombosis and prevent secondary infection, so as to be effectively reduced generate thrombotic risk and after Send out the risk of infection.

Detailed description of the invention

Fig. 1 is the usage state diagram at traditional venous transfusion port；

Fig. 2 is the structural schematic diagram at exemplary embodiments venous transfusion port；

Fig. 3 is the state diagram after transfusion catheter and the separation of port body；

Fig. 4 is the partial sectional view of port body.

Specific embodiment

The utility model is described further with reference to the accompanying drawings and examples.

Referring to Figure 2 to Figure 4, exemplary embodiments two-chamber venous transfusion port includes transfusion catheter 10 and port body 20.

Transfusion catheter 10 is used to import the liquid in port body 20 in vein.The preferred medical silica-gel material of transfusion catheter 10 is defeated Fluid catheter or polythene material transfusion catheter, the outer diameter of transfusion catheter 10 preferably 4 to 7F, the preferred 130-160mm of length.

Port body 20 is made of medical silica-gel, and cylindrical, the both ends of port body 20 are hemispherical.Medical silica-gel material is fair Perhaps it is implanted into the high molecular material of human body, there is different consistency and elasticities, different shapes can be made by mold.It has good Good elastical retraction effect, being voluntarily closed using its puncture needle track after not damaged puncture pin puncture not will cause fluid seepage.Together When, another physical characteristic of silica gel material is to can be used as the carrier of liquid drug sustained release with micropore.

Port body 20 has cavity 21, and cavity 21 is provided with diaphragm 22, and the cavity 21 is divided into two chambers by diaphragm 22 23,24, the diaphragm 22 has the micropore penetrated through for liquid.The transfusion catheter 10 is connected to one end of the port body 20 It is connected to one of chamber 23.The preferred pellosil of diaphragm 22 realizes penetrating through for medical fluid using the micropore of silica gel itself, The preferred 1.0-1.5mm of the thickness of the pellosil.

Body 20 size in port is preferably as follows: internal diameter 7-9mm, length 35-40mm, wall thickness 2-3mm, with transfusion catheter 10 The length of the chamber 23 of connection is 25-30mm.

The outer surface of port body 20 corresponds to and is provided with identification rings 25 at the diaphragm 22, with when port body 20 is implanted subcutaneous, It still can recognize the boundary of two chambers 23,24.The preferred becket of identification rings 25, and identification rings are from the outwardly convex of port body 20 Out, the boundary of two chambers 23,24 can be not only identified by external touch manner, and can identify two by fluoroscopy techniques The boundary of a chamber 23,24.

Transfusion catheter 10 is provided with the first connector 11 of tubulose in connecting pin, and accordingly, port body 20 is arranged in connecting pin There is the second connector 26 of tubulose, connector has helicitic texture, and transfusion catheter 10 and port body 20 pass through connector removably Connection.As another embodiment, buckle structure can also be set in connector, by buckle structure by transfusion catheter 10 and port Body 20 is detachably connected.Connector preferably uses polyurethane material to suppress by die casting, viscous by ultrasonic emulsification Even port body 20, transfusion catheter 10 are connected thereto part respectively and are linked together by technology.

One embodiment intravenous transfusion methods include:

Above-mentioned two-chamber venous transfusion port is implanted into human body.It specifically can be by way of one-step method puncture or seal wire exchange process Two ways enters in central vein, and television perspective determines transfusion catheter head end in the position of superior vena cava, and position suitable then will Transfusion catheter 10 and port body 20 connect.

When infusion, intravenous injection is needled into the chamber 23 being connected to transfusion catheter 10, liquid is defeated through transfusion catheter 10 Enter vein.

It is injected to the chamber 24 for not being connected to transfusion catheter 10 with 21G syringe needle in vitro or after implanting anticoagulant Agent and/or antibacterial agent, they can be stored in for a long time in this inner cavity chamber, enter through 22 slow release of diaphragm and connect with transfusion catheter Logical chamber 23 and transfusion catheter 10 is slowly discharged to outside the tissue around transfusion port through cavity wall simultaneously, to prevent thrombosis And prevent secondary infection.Injection anti-coagulants or antibacterial agent can be determined according to the concrete condition of patient's therapic opportunity, such as changed Often the stage to be used considers the more just injection antibacterial agent prevention infection of the factor of infection during treatment, if after treatment end Anti-coagulants is injected or anti-coagulants, antibacterial agent use in turn to keep the unobstructed just extraction antibacterial agent of transfusion port, that is, is replaced Anti-coagulants and antibacterial agent are stored to the chamber 24 for not being connected to transfusion catheter 10.

Effective inner cavity (i.e. chamber 23) length that transfusion port port body 20 is used to be infused, can be using common up to 25mm or more Intravenous infusion needle or not damaged puncture pin puncture have breakthrough to feel and be extracted into after blood and show that needle point enters infusion inner cavity, open Logical infusion adjusting knob, if liquid smoothly enters, transfusion port surrounding skin has no oedema caused by leakage, just illustrates transfusion port Infusion channel is successfully established.

Using medical silica-gel as transfusion port port body material, and transfusion port port body is designed as cylindrical structure, main base Body surface is embedded in convenient for the new theory of the artificial blood vessel punctured, by transfusion port vascularization, convenient for doctor in transfusion port is become one Shield personnel operate and avoid being reduced venipuncture difficulty using transfusion port puncturing needle special and being reduced consumptive material expense as far as possible.Silica gel simultaneously Material also plays medicament slow release.

Above-mentioned two-chamber venous transfusion port can be applied to important channel and the portion that Patients Receiving Chemotherapy implements intravenous chemotherapy The patient for dividing malnourished patient, PeV medication channel to be difficult to set up is to guarantee that drug and nutriment matter can smoothly enter into body Interior important method.

The utility model is described in detail above by specific embodiment, these detailed description are only limited to The content of the utility model is helped skilled in the art to understand, the limit to scope of protection of the utility model can not be interpreted as System.Those skilled in the art should all wrap various retouchings, the equivalent transformation etc. that above scheme carries out under the utility model design Containing within the protection scope of the present utility model.

Claims

1. a kind of two-chamber venous transfusion port, including transfusion catheter and by the molding columned port body of medical silica-gel, the port body With cavity, the both ends of the port body are hemispherical, it is characterised in that: the cavity is provided with diaphragm, and the diaphragm will be described Cavity is divided into two chambers, and the diaphragm has the micropore penetrated through for liquid, and the transfusion catheter is connected to the port One end of body and one of chamber.

2. two-chamber venous transfusion according to claim 1 port, it is characterised in that: the diaphragm is pellosil, the silica gel Film with a thickness of 1.0-1.5mm.

3. two-chamber venous transfusion according to claim 1 port, it is characterised in that: the outer surface of the port body it is corresponding it is described every Identification rings are provided at film.

4. two-chamber venous transfusion according to claim 3 port, it is characterised in that: the identification rings are becket, the mark Know outwardly protrusion of the ring from port body.

5. two-chamber venous transfusion according to claim 1 port, it is characterised in that: the transfusion catheter and port body difference Connecting pin is provided with the connector of tubulose, connector has helicitic texture or buckle structure, the transfusion catheter and the port Body is detachably connected by the connector.

6. two-chamber venous transfusion according to claim 1 port, it is characterised in that: the transfusion catheter is medical silica-gel material Transfusion catheter or polythene material transfusion catheter, the outer diameter of transfusion catheter is 4-7F, length 130-160mm, the port body Internal diameter is 7-9mm, length 35-40mm, wall thickness 2-3mm, and the length for the chamber being connected to transfusion catheter is 25-30mm.