CN219501834U - Three-way transfusion joint - Google Patents
Three-way transfusion joint Download PDFInfo
- Publication number
- CN219501834U CN219501834U CN202320513220.9U CN202320513220U CN219501834U CN 219501834 U CN219501834 U CN 219501834U CN 202320513220 U CN202320513220 U CN 202320513220U CN 219501834 U CN219501834 U CN 219501834U
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- China
- Prior art keywords
- interface
- liquid guide
- catheter
- infusion
- guide pipe
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 238000001802 infusion Methods 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 abstract description 4
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 239000003814 drug Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 229960002897 heparin Drugs 0.000 description 2
- 229920000669 heparin Polymers 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to the technical field of medical appliances, in particular to a three-way infusion connector. The connector comprises a connector body which is integrally T-shaped; the joint body includes: an output joint part, one end of which forms a first interface for matching with the infusion needle tube; a runner assembly portion including a first catheter and a second catheter; a second flow passage is formed in the first liquid guide pipe, and a third flow passage is formed in the second liquid guide pipe; and the shell part is provided with a second interface and a third interface which are used for being matched with the corresponding infusion pipeline at the positions corresponding to the first liquid guide pipe and the second liquid guide pipe respectively. The housing part is internally provided with a containing cavity for containing the runner assembly part, and corresponding sealing assemblies are arranged at the positions of the containing cavity corresponding to the second interface and the third interface. The sealing component can preferably realize the sealing of the second interface and the third interface, so that the connector body can be preferably matched with PICC (central venous catheter through peripheral venipuncture), deep vein indwelling needle and the like.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a three-way infusion connector.
Background
In some serious cases, it is necessary to inject the medical fluid into the patient's body through PICC catheters (central venous catheters through peripheral venipuncture), deep venous indwelling needles, etc.; and in such cases, a micropump injection is usually required; further, since the injection duration of the micropump is long, it is difficult to perform injection of the remaining medical fluid during the injection of the micropump.
The existing medical three-way valve is usually a cock type, and the structure is more suitable for single continuous infusion injection. Because of the lack of a sufficient closed structure, the device is difficult to be matched with an indwelling needle and the like, i.e. is difficult to realize repeated use for a plurality of times.
Disclosure of Invention
The utility model provides a three-way infusion connector which can better overcome certain or certain defects in the prior art.
The three-way infusion connector comprises a connector body which is integrally T-shaped; the joint body comprises a plurality of connecting pieces,
an output joint part, one end of which forms a first interface for matching with the infusion needle tube and the other end of which forms a step-shaped connecting part; the whole body of the device is cylindrical, and a first flow passage is arranged in the device in a penetrating manner;
a flow path assembly part including a first catheter having a conical shape as a whole and a second catheter having a conical shape as a whole; one end of the first liquid guide pipe with larger diameter is used for being matched with the end face of the connecting part, a second flow passage is formed in the first liquid guide pipe, and the second flow passage and the first flow passage form a main flow passage together; the second liquid guide pipe is formed at the side wall of the first liquid guide pipe, and a third flow passage communicated with the second flow passage is formed in the second liquid guide pipe; the method comprises the steps of,
the shell part is provided with a step-shaped connecting groove at the position corresponding to the connecting part, and a second interface and a third interface which are used for being matched with corresponding infusion pipelines are respectively formed at the position corresponding to the smaller ends of the first liquid guide pipe and the second liquid guide pipe; the inside of the sealing device is provided with a containing cavity for containing the runner assembly part, and corresponding sealing assemblies are arranged at the positions of the containing cavity corresponding to the second interface and the third interface.
The first interface, the second interface and the third interface form a three-way pipeline together, so that simultaneous infusion and injection of different liquid medicines can be preferably realized. The sealing assemblies are arranged at the second interface and the third interface, so that the second interface and the third interface can be sealed better, and the connector body can be matched with PICC (peripherally inserted central catheter), deep vein indwelling needle and the like better.
Preferably, the connecting portion is engaged with the connecting groove. The mounting of the housing part is preferably achieved.
Preferably, the runner assembly portion is integrally formed of silicone. Thus being convenient for production and manufacture.
Preferably, the first interface construction Cheng Luer is in the form of a joint. Because the luer connector is a more universal medical connector, the luer connector can be better matched with a conventional PICC (central venous catheter through peripheral venipuncture), a deep vein indwelling needle and the like.
Preferably, connecting threads are arranged at the outer side walls of the second interface and the third interface. Therefore, the cleaning device can be matched with plugs such as heparin caps and the like, and the cleanliness of the second interface and the third interface can be maintained when the second interface and/or the third interface are not used.
Preferably, the inner diameters of the second interface and the third interface are not smaller than the outer diameters of the corresponding infusion pipelines, and the outer sides of the smaller ends of the first catheter and the second catheter are configured to form an infusion gap with the inner wall of the corresponding infusion pipeline; the side walls of the smaller ends of the first liquid guide tube and the second liquid guide tube are respectively provided with a corresponding liquid inlet channel, and the corresponding sealing assemblies are used for telescopically blocking the corresponding liquid inlet channels. The structure ensures that when the corresponding infusion pipeline (such as the head of the injector) is inserted into the second interface and/or the third interface, the sealing component can be pressed to retract until the liquid inlet channel is exposed, and at the moment, the gap between the corresponding infusion pipeline and the first liquid guide pipe and/or the second liquid guide pipe, the corresponding liquid inlet channel and the main flow channel or the third flow channel are communicated, so that the infusion injection of liquid medicine is preferably realized. After injection is completed, the sealing component can extend out and form a plug for the liquid inlet channel, so that the second interface and/or the third interface are preferably sealed.
Preferably, the sealing component is provided with a separation part and a rubber sleeve part which are sequentially connected, and the corresponding sealing component is respectively and integrally sleeved at the first liquid guide pipe and the second liquid guide pipe; the outer side walls of the first liquid guide pipe and the second liquid guide pipe are protruded to the outer peripheral part to form an expansion part, and the expansion part is used for resisting the rubber sleeve part; the end face of the separation part is provided with a separation gap which is used for matching with the smaller end of the first liquid guide pipe or the second liquid guide pipe. Therefore, the plugging and opening of the liquid inlet channel can be preferably realized.
Preferably, the rubber sleeve portion is corrugated. So that the rubber sleeve part has better elasticity.
Preferably, the inner walls of the accommodating cavity corresponding to the second interface and the third interface form a truncated cone-shaped necking part, and the outer wall of the separation part forms a limiting part matched with the corresponding necking part. Therefore, the anti-falling limit of the sealing component can be preferably realized.
Drawings
Fig. 1 is a schematic structural diagram of a joint body in embodiment 1.
Fig. 2 is a cross-sectional view of the connector body of fig. 1.
Detailed Description
For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings and examples. It is to be understood that the examples are illustrative of the present utility model and are not intended to be limiting.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a three-way infusion connector, which includes a connector body 100 having a T shape as a whole; the connector body 100 includes a plurality of male connectors,
an output connector 130, one end of which forms a first interface 131 for matching with an infusion needle channel, and the other end of which forms a stepped connection 132; the whole body is cylindrical, and a first flow channel 133 is arranged in the whole body in a penetrating manner;
a flow path assembly portion 200 including a first catheter 220 having a generally conical shape and a second catheter 230 having a generally conical shape; the larger diameter end of the first catheter 220 is used for being matched with the end face of the connecting part 132, a second flow channel 221 is formed inside the first catheter 220, and the second flow channel 221 and the first flow channel 133 together form a main flow channel; a second catheter 230 is formed at a sidewall of the first catheter 220, and a third flow channel 231 communicating with the second flow channel 221 is formed inside the second catheter 230; the method comprises the steps of,
a housing portion 110 having a stepped connection groove 111 formed at a corresponding connection portion 132, and having a second port 120 and a third port 121 formed at smaller ends thereof corresponding to the first catheter 220 and the second catheter 230, respectively, for being mated with corresponding infusion lines; the interior of which forms a receiving chamber 210 for receiving the flow path assembly part 200, and the receiving chamber 210 is provided with corresponding sealing assemblies at positions corresponding to the second port 120 and the third port 121.
In this embodiment, the first port 131, the second port 120 and the third port 121 together form a three-way pipeline, so that simultaneous infusion and injection of different liquid medicines can be preferably realized. The second interface 120 and the third interface 121 are both provided with sealing assemblies, so that the second interface 120 and the third interface 121 can be sealed better, and the connector body 100 can be matched with a PICC catheter (central venous catheter through peripheral venipuncture), a deep venous indwelling needle, and the like better.
In this embodiment, the connection portion 132 is engaged with the connection groove 111. The mounting of the housing portion 110 is preferably accomplished.
It will be appreciated that the housing portion 110 can be configured to be formed of symmetrical halves for ease of assembly, by being assembled with the output connector portion 130, such as by gluing.
In this embodiment, the runner assembly portion 200 is integrally formed of silicone. Thus being convenient for production and manufacture.
In this embodiment, the first interface 131 is configured in the form of a Cheng Luer connector. Because the luer connector is a more universal medical connector, the luer connector can be better matched with a conventional PICC (central venous catheter through peripheral venipuncture), a deep vein indwelling needle and the like.
As seen in fig. 2, the first port 131 has an annular mounting groove 270, and threads 280 are provided on the inner wall of the mounting groove 270.
In this embodiment, the outer side walls of the second interface 120 and the third interface 121 are provided with connecting threads. And thus can preferably mate with a plug such as a heparin cap, and thus can preferably maintain cleanliness at the second interface 120 and the third interface 121 when the second interface 120 and/or the third interface 121 are not in use.
In this embodiment, the inner diameters of the second port 120 and the third port 121 are configured to be not smaller than the outer diameters of the corresponding infusion lines, and the outer sides of the smaller ends of the first catheter 220 and the second catheter 230 are configured to form an infusion gap with the inner walls of the corresponding infusion lines; corresponding access channels 240 are formed at the side walls of the smaller ends of the first and second catheters 220, 230, and the respective sealing assemblies are used to telescopically effect the occlusion of the corresponding access channels 240. The structure enables the sealing component to retract under pressure until the liquid inlet channel 240 is exposed when the corresponding liquid delivery pipeline (such as the head of the injector) is inserted into the second interface 120 and/or the third interface 121, and the gap between the corresponding liquid delivery pipeline and the first liquid guide tube 220 and/or the second liquid guide tube 230, the corresponding liquid inlet channel 240 and the main flow channel or the third flow channel 231 are kept communicated, so that the liquid delivery injection of the liquid medicine is preferably realized. And after injection is completed, the sealing assembly can extend out and form a seal with respect to the fluid inlet channel 240, so that sealing of the second port 120 and/or the third port 121 is preferably achieved.
In this embodiment, the seal assembly has a partition portion 260 and a rubber sleeve portion 250 connected in sequence, and the corresponding seal assemblies are respectively sleeved at the first catheter 220 and the second catheter 230 integrally; the outer side walls of the first and second catheters 220 and 230 are protruded to the outer peripheral portion to form an expansion portion 2100, and the expansion portion 2100 is used to form a resistance to the rubber sleeve portion 250; a separation slit is formed at the end surface of the separation part 260 for cooperation with the smaller end of the first catheter 220 or the second catheter 230. The blocking and opening of the liquid inlet channel 240 can be preferably accomplished.
In this embodiment, the rubber sleeve portion 250 is corrugated. So that the rubber sleeve portion 250 can have better elasticity.
In this embodiment, the inner walls of the accommodating cavity 210 corresponding to the second interface 120 and the third interface 121 form a truncated cone-shaped necking portion, and the outer wall of the partition 260 forms a limiting portion 290 for matching with the corresponding necking portion. Therefore, the anti-falling limit of the sealing component can be preferably realized.
In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.
Claims (9)
1. Three-way infusion connects, its characterized in that: comprises a joint body (100) which is integrally T-shaped; the joint body (100) comprises a plurality of joint elements,
an output joint part (130), one end of which forms a first interface (131) for matching with the infusion needle tube, and the other end of which forms a step-shaped connecting part (132); the whole body of the device is cylindrical, and a first flow passage (133) is arranged in the device in a penetrating manner;
a flow path assembly part (200) including a first catheter (220) having a conical shape as a whole and a second catheter (230) having a conical shape as a whole; one end of the first liquid guide pipe (220) with a larger diameter is used for being matched with the end face of the connecting part (132), a second flow channel (221) is formed in the first liquid guide pipe (220), and the second flow channel (221) and the first flow channel (133) form a main flow channel together; the second liquid guide tube (230) is formed at the side wall of the first liquid guide tube (220), and a third flow passage (231) communicated with the second flow passage (221) is formed inside the second liquid guide tube (230); the method comprises the steps of,
a housing portion (110) having a stepped connection groove (111) formed at a corresponding connection portion (132), and having a second port (120) and a third port (121) formed at smaller ends thereof corresponding to the first catheter (220) and the second catheter (230), respectively, for fitting with corresponding infusion lines; the inside of the sealing device is provided with a containing cavity (210) for containing the runner assembly part (200), and corresponding sealing assemblies are arranged at the positions of the containing cavity (210) corresponding to the second interface (120) and the third interface (121).
2. The three-way infusion connector of claim 1, wherein: the connecting part (132) is in clamping fit with the connecting groove (111).
3. The three-way infusion connector of claim 1, wherein: the runner assembly portion (200) is integrally constructed of silicone.
4. The three-way infusion connector of claim 1, wherein: the first interface (131) is configured in the form of a Cheng Luer connector.
5. The three-way infusion connector of claim 1, wherein: and connecting threads are arranged at the outer side walls of the second interface (120) and the third interface (121).
6. The three-way infusion connector of claim 1, wherein: the inner diameters of the second interface (120) and the third interface (121) are not smaller than the outer diameter of the corresponding infusion pipeline, and the outer sides of the smaller ends of the first liquid guide pipe (220) and the second liquid guide pipe (230) are configured to form an infusion gap with the inner wall of the corresponding infusion pipeline; corresponding liquid inlet channels (240) are formed at the side walls of the smaller ends of the first liquid guide tube (220) and the second liquid guide tube (230), and the corresponding sealing assemblies are used for telescopically sealing the corresponding liquid inlet channels (240).
7. The three-way infusion connector of claim 6, wherein: the sealing components are provided with a separation part (260) and a rubber sleeve part (250) which are sequentially connected, and the corresponding sealing components are respectively sleeved at the first liquid guide pipe (220) and the second liquid guide pipe (230) in an integral way; the outer side walls of the first liquid guide tube (220) and the second liquid guide tube (230) are protruded to the outer peripheral part to form an expanding part (2100), and the expanding part (2100) is used for forming the resistance to the rubber sleeve part (250); a separation slit is formed at the end face of the separation part (260) for cooperation with the smaller end of the first catheter (220) or the second catheter (230).
8. The three-way infusion connector of claim 7, wherein: the rubber sleeve portion (250) is corrugated.
9. The three-way infusion connector of claim 6, wherein: the inner walls of the accommodating cavity (210) corresponding to the second interface (120) and the third interface (121) form round table-shaped necking parts, and the outer walls of the separation parts (260) form limiting parts (290) matched with the corresponding necking parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320513220.9U CN219501834U (en) | 2023-03-16 | 2023-03-16 | Three-way transfusion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320513220.9U CN219501834U (en) | 2023-03-16 | 2023-03-16 | Three-way transfusion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219501834U true CN219501834U (en) | 2023-08-11 |
Family
ID=87524097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320513220.9U Active CN219501834U (en) | 2023-03-16 | 2023-03-16 | Three-way transfusion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219501834U (en) |
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2023
- 2023-03-16 CN CN202320513220.9U patent/CN219501834U/en active Active
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