CN115737978A - Implanted arterial infusion port - Google Patents

Implanted arterial infusion port Download PDF

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Publication number
CN115737978A
CN115737978A CN202211425186.6A CN202211425186A CN115737978A CN 115737978 A CN115737978 A CN 115737978A CN 202211425186 A CN202211425186 A CN 202211425186A CN 115737978 A CN115737978 A CN 115737978A
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China
Prior art keywords
pipe
port
infusion
way valve
cavity
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CN202211425186.6A
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Chinese (zh)
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CN115737978B (en
Inventor
戴新春
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Jiangsu Yibei Medical Technology Co ltd
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Jiangsu Yibei Medical Technology Co ltd
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Priority to CN202211425186.6A priority Critical patent/CN115737978B/en
Publication of CN115737978A publication Critical patent/CN115737978A/en
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Publication of CN115737978B publication Critical patent/CN115737978B/en
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Abstract

The invention relates to the technical field of infusion ports, in particular to an implantable arterial infusion port, which is attached to an infusion catheter through a side cone tip of a pagoda connector, further improves the sealing property of the infusion catheter in sleeving, and extrudes an end opening part of the infusion catheter through a pressing hoop and an end opening blocking surface, so that the infusion catheter can be firmly installed without falling off, the absolute sealing property can be ensured, the leakage of injection liquid is avoided, the blood backflow caused by the falling off of the infusion catheter is avoided, and the use stability is improved; the transfusion port sealing device comprises a transfusion port base, a transfusion port diaphragm, a flow guide cavity and a conduit sealing mechanism, wherein the flow guide cavity is arranged in the transfusion port base, the flow guide cavity is fixedly arranged at the top end of the transfusion port base, and the conduit sealing mechanism is communicated and fixedly arranged on the transfusion port base; the guide pipe sealing mechanism comprises a one-way valve pipe, a guide pipe connecting pipe, a pagoda joint, a transfusion guide pipe, a port blocking surface, a pressing lantern ring and a pressing hoop, the one-way valve pipe is fixedly arranged on the transfusion port base, and the one-way valve pipe is communicated with the flow guide cavity.

Description

Implanted arterial infusion port
Technical Field
The invention relates to the technical field of infusion ports, in particular to an implantable arterial infusion port.
Background
The infusion port is the closed infusion set of implanting the human body completely, including the tip be located the pipe part of superior vena cava and bury in subcutaneous injection seat, current infusion port is after implanting the human body, for the convenience of inserting the needle, can insert the needle of keeping somewhere on infusion port, be through the adhesion between the pipe of current infusion port and the injection seat, in the use, if the pipe of infusion port appears droing with the junction of injection seat, can lead to the liquid in the injection seat to spill, can't pour into the vein into, still can lead to the blood in the artery to flow through the pipe, lead to the stability in use relatively poor.
Disclosure of Invention
In order to solve the technical problems, the invention provides the implantable arterial infusion port which is characterized in that the side cone tip of the pagoda connector is attached to the infusion catheter, the sealing performance of the infusion catheter set is further improved, the port part of the infusion catheter is extruded by the compression hoop and the port blocking surface, the infusion catheter can be firmly installed without falling off, the absolute sealing performance can be ensured, the leakage of injection liquid is avoided, the blood backflow caused by the falling off of the infusion catheter is avoided, and the use stability is improved.
The invention relates to an implantable arterial infusion port, which comprises an infusion port base, an infusion port diaphragm, a flow guide cavity and a catheter sealing mechanism, wherein the flow guide cavity is arranged in the infusion port base, the flow guide cavity is fixedly arranged at the top end of the infusion port base, and the catheter sealing mechanism is communicated and fixedly arranged on the infusion port base;
the pipe sealing mechanism comprises a check valve pipe, a pipe connecting pipe, a pagoda joint, an infusion pipe, a port blocking surface, a compression sleeve ring and a compression hoop, the check valve pipe is fixedly installed on an infusion port base, the check valve pipe is communicated with a flow guide cavity, the pipe connecting pipe is fixedly installed on the check valve pipe, the outer end of the pipe connecting pipe is provided with the pagoda joint, the infusion pipe is sleeved outside the pagoda joint, the port blocking surface is arranged on the pipe connecting pipe, the port blocking surface is arranged at the tail end of the pagoda joint, the end of the infusion pipe is tightly attached to the port blocking surface, the outer end of the pipe connecting pipe is provided with an external thread, the compression sleeve ring is screwed on the pipe connecting pipe, the compression hoop is annularly arranged inside the compression sleeve ring, and the compression hoop is tightly attached to the end of the infusion pipe.
The invention relates to an implantable arterial infusion port, which further comprises a one-way circulation cavity, a sealing ring, a circulation groove, a one-way valve core, a valve core through hole, a sealing pressure head, a spring and a spring top plate, wherein the inside of a one-way valve pipe is communicated with the one-way circulation cavity, the one-way circulation cavity is communicated with a flow guide cavity, the sealing ring is arranged around the one-way circulation cavity, the circulation groove is arranged around the one-way circulation cavity, the one-way valve core is slidably inserted into the one-way circulation cavity, a plurality of groups of valve core through holes are communicated and arranged on the one-way valve core, the sealing pressure head is arranged at the end part of the one-way valve core and is attached to the sealing ring, the spring top plate is fixedly arranged inside the one-way valve pipe, the spring is fixedly inserted into the one-way valve core, and the outer end of the spring is fixedly connected with the spring top plate.
According to the implantable arterial infusion port, the pressing end of the pressing hoop is a cambered surface.
According to the implantable arterial infusion port, the corners of the base of the infusion port are all provided with round corners.
According to the implantable arterial infusion port, the one-way valve pipe is communicated with the catheter connecting pipe, and the one-way valve pipe, the catheter connecting pipe and the pagoda joint are all of an integrally formed structure.
According to the implantable arterial infusion port, the infusion port diaphragm is made of a silica gel material.
According to the implantable arterial infusion port, the outer end of the compression lantern ring is provided with the anti-skid stripes.
According to the implantable arterial infusion port, the spring top plate is net-shaped, and the liquid communicating groove is formed in the spring top plate.
According to the implantable arterial infusion port, the input end of the sealing ring is provided with the inclined guide surface.
The base of the implantable arterial infusion port is made of Chinese porcelain.
Compared with the prior art, the invention has the beneficial effects that:
when the infusion catheter is sleeved on the pagoda joint, the section of the pagoda joint is designed to be conical, when the infusion catheter is sleeved, the infusion catheter is attached to an inclined guide conical surface of the pagoda joint, the infusion catheter is guided to be sleeved on the pagoda joint in a sliding mode, friction force during sleeving is reduced, after sleeving is completed, the inner end of the infusion catheter is attached to a side conical tip of the pagoda joint, friction force between the inner side wall of the infusion catheter and the pagoda joint is increased, therefore, the infusion catheter is difficult to pull out, the firmness of installation of the infusion catheter is increased, the side conical tip of the pagoda joint is attached to the infusion catheter, the tightness of the infusion catheter in sleeving is further improved, then a pressing sleeve ring is sleeved on a catheter connecting pipe in a threaded mode, the pressing sleeve ring gradually approaches to a port blocking surface in the moving process of the pressing sleeve ring, then the end portion of the infusion catheter is tightly pressed on the port blocking surface through the pressing sleeve ring and the port blocking surface, the pressing sleeve ring and the end portion of the infusion catheter is pressed to the port blocking surface, the infusion catheter is guaranteed to be firmly installed and not to fall off, absolute tightness, leakage of the infusion catheter is guaranteed, and the infusion catheter is prevented from leaking, and blood backflow of the infusion catheter is prevented from being used.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional structural view of the present invention;
FIG. 3 is a schematic view of an infusion tube mounting structure;
FIG. 4 is a schematic cross-sectional view of the check valve tube;
in the drawings, the reference numbers: 1. a transfusion port base; 2. a transfusion port membrane; 3. a flow guide cavity; 4. a check valve tube; 5. a conduit connecting pipe; 6. a pagoda joint; 7. an infusion catheter; 8. a port stop surface; 9. compressing the lantern ring; 10. compressing the hoop; 11. a one-way flow chamber; 12. a seal ring; 13. a diversion groove; 14. a one-way valve core; 15. a valve core through hole; 16. sealing the pressure head; 17. a spring; 18. and a spring top plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the implantable arterial infusion port of the present invention comprises an infusion port base 1, an infusion port membrane 2, a diversion cavity 3 and a catheter sealing mechanism, wherein the infusion port base 1 is internally provided with the diversion cavity 3, the diversion cavity 3 is fixedly arranged at the top end of the infusion port base 1, and the catheter sealing mechanism is fixedly arranged on the infusion port base 1 in a communicating manner;
the catheter sealing mechanism comprises a one-way valve tube 4, a catheter connecting tube 5, a pagoda joint 6, an infusion catheter 7, a port blocking surface 8, a pressing lantern ring 9 and a pressing hoop 10, wherein the one-way valve tube 4 is fixedly installed on an infusion port base 1, the one-way valve tube 4 is communicated with a flow guide cavity 3, the catheter connecting tube 5 is fixedly installed on the one-way valve tube 4 in a communicated manner, the pagoda joint 6 is arranged at the outer end of the catheter connecting tube 5, the infusion catheter 7 is sleeved on the outer side of the pagoda joint 6, the port blocking surface 8 is arranged on the catheter connecting tube 5, the port blocking surface 8 is arranged at the tail end of the pagoda joint 6, the end of the infusion catheter 7 is tightly attached to the port blocking surface 8, external threads are arranged at the outer end of the catheter connecting tube 5, the pressing lantern ring 9 is sleeved on the catheter connecting tube 5 in a threaded manner, the pressing hoop 10 is arranged inside the pressing hoop 9 in a surrounding manner, and the pressing hoop 10 is tightly attached to the end of the infusion catheter 7;
when the device is assembled, firstly, the infusion catheter 7 is sleeved on the pagoda joint 6, the section of the pagoda joint 6 is designed to be conical, when the infusion catheter 7 is sleeved, the infusion catheter 7 is attached to the inclined guide conical surface of the pagoda joint 6, the infusion catheter 7 is guided to be sleeved on the pagoda joint 6 in a sliding mode, friction force during sleeving is reduced, after sleeving is completed, the inner end of the infusion catheter 7 is attached to the side conical tip of the pagoda joint 6, friction force between the inner side wall of the infusion catheter 7 and the pagoda joint 6 is increased, therefore, the infusion catheter 7 is difficult to pull out outwards, the installation firmness of the infusion catheter 7 is increased, the side conical tip of the pagoda joint 6 is attached to the infusion catheter 7, the sleeving tightness of the infusion catheter 7 is further improved, then the pressing sleeve ring 9 is sleeved on the catheter connecting pipe 5 in a threaded mode, the pressing sleeve ring 10 gradually draws close to the stop surface 8 during moving of the pressing sleeve ring 9, then the pressing sleeve ring 10 can tightly press the end portion of the infusion catheter 7 on the stop surface 8, the port can ensure that the infusion catheter 7 can not fall off, and the infusion catheter 7 can be used, and the infusion catheter can be prevented from leaking and the infusion catheter from being used.
As the optimization of the above embodiment, the one-way valve further comprises a one-way circulation cavity 11, a sealing ring 12, a diversion groove 13, a one-way valve core 14, a valve core through hole 15, a sealing pressure head 16, a spring 17 and a spring top plate 18, wherein the one-way circulation cavity 11 is communicated with the inside of the one-way valve tube 4, the one-way circulation cavity 11 is communicated with the diversion cavity 3, the sealing ring 12 is arranged around the one-way circulation cavity 11, the diversion groove 13 is arranged around the one-way circulation cavity 11, the one-way valve core 14 is slidably inserted into the one-way circulation cavity 11, a plurality of groups of valve core through holes 15 are communicated with the one-way valve core 14, the sealing pressure head 16 is arranged at the end of the one-way valve core 14, the sealing pressure head 16 is attached to the sealing ring 12, the spring top plate 18 is fixedly installed inside the one-way valve tube 4, the spring 17 is fixedly inserted into the one-way valve core 14, and the outer end of the spring 17 is fixedly connected with the spring top plate 18;
during transfusion, a transfusion needle is inserted into a transfusion port diaphragm 2, then liquid is conveyed into a diversion cavity 3, the liquid is communicated into a one-way circulation cavity 11 through the diversion cavity 3, then a one-way valve core 14 is pushed to slide in the one-way circulation cavity 11 under the pushing action of the flowing pressure and mass of the liquid, then a sealing pressure head 16 is enabled to be separated from the adhering state with a sealing ring 12, then the one-way circulation cavity 11 is communicated with a diversion groove 13, then the liquid flows into the diversion groove 13, then the liquid in the diversion groove 13 flows into the one-way valve core 14 through a valve core through hole 15, then the liquid in the one-way valve core 14 continues to flow, penetrates through a spring top plate 18 and flows to a transfusion conduit 7, and is conveyed into veins of a patient, when venous blood of the patient flows back, the blood flows into a one-way valve tube 4 through the transfusion conduit 7 and a conduit connecting tube 5, then the blood penetrates through the spring top plate 18 and flows into the one-way valve core 14, and under the action of the blood pressure and the elasticity of a spring 17, the one-way valve core 14 is pushed to slide towards the sealing ring 12 until the sealing pressure head 16 is tightly adhered to the sealing ring 12, the one-way circulation cavity 11 and the diversion groove 13, so that the stability of the blood is prevented from flowing into the one-way circulation chamber 3, and is improved.
As a preference of the above embodiment, the pressing end of the pressing hoop 10 is provided with an arc surface;
through compressing tightly the hoop 10 and compressing tightly the end and set up to the cambered surface, cut infusion pipe 7 because of pressure is too big when avoiding compressing tightly the hoop 10 and compressing tightly 7 ports of infusion pipe, and then lead to infusion pipe 7 to drop, improve stability in use.
As the optimization of the embodiment, the corners of the transfusion port base 1 are all set to be round corners;
because the whole base 1 of the infusion port is buried under the skin of a patient, the corners of the base 1 of the infusion port are rounded, the subcutaneous tissues of people are prevented from being scratched by the base 1 of the infusion port in a human body, and the use stability is improved.
Preferably, in the above embodiment, the check valve tube 4 and the catheter connecting tube 5 are communicated with each other, and the check valve tube 4, the catheter connecting tube 5 and the pagoda joint 6 are all integrally formed;
through setting up check valve pipe 4, pipe connecting pipe 5 and pagoda joint 6 into integral type structure, increase the whole leakproofness of infusion port to increase the intensity of infusion port, avoid the infusion port to disintegrate or reveal in the use, improve stability in use.
As a preference of the above embodiment, the transfusion port diaphragm 2 is made of a silica gel material;
by manufacturing the transfusion port diaphragm 2 by using silica gel, the transfusion stability is ensured, the rejection effect of a human body is reduced, and the use stability is improved.
As a preference of the above embodiment, the outer end of the pressing sleeve ring 9 is provided with anti-skid stripes;
through setting up the antiskid and adjusting, when revolving soon and compressing tightly lantern ring 9, avoid appearing the phenomenon of skidding, improve the stability in use.
As a preference of the above embodiment, the spring top plate 18 is provided with a net shape, and the liquid passing groove is provided on the spring top plate 18.
As a preference of the above embodiment, the input end of the sealing ring 12 is provided with an inclined guide surface;
through setting up oblique guide surface at sealing ring 12 input, when liquid flows in, avoid liquid direct scouring on the vertical plane, guide liquid backward flow reduces the liquid impact force, improves liquid flow smooth and easy degree, improves the stability in use.
As the optimization of the embodiment, the transfusion harbor base 1 is made of Chinese porcelain;
the safety of the medicine is improved, the influence on radiotherapy is avoided, and the use stability is improved.
The invention relates to an implantable arterial infusion port, during operation, when the device is assembled, firstly, an infusion catheter 7 is sleeved on a pagoda joint 6, because the section of the pagoda joint 6 is designed to be conical, when the infusion catheter 7 is sleeved, the infusion catheter 7 is attached to an inclined conical surface of the pagoda joint 6, the infusion catheter 7 is guided to be sleeved on the pagoda joint 6 in a sliding way, the friction force during sleeving is reduced, after the sleeving is finished, the inner end of the infusion catheter 7 is attached to a side conical tip of the pagoda joint 6, the friction force between the inner side wall of the infusion catheter 7 and the pagoda joint 6 is increased, therefore, the infusion catheter 7 is difficult to be pulled out outwards, the installation firmness of the infusion catheter 7 is increased, and because the side conical tip of the pagoda joint 6 is attached to the infusion catheter 7, the sleeving tightness of the infusion catheter 7 is further improved, and then a pressing lantern ring 9 is sleeved on a catheter connecting pipe 5 in a threaded way, the pressing hoop 10 gradually approaches to the port stop surface 8 in the moving process of the pressing collar 9, then the pressing hoop 10 tightly presses the end of the infusion catheter 7 on the port stop surface 8, in the infusion process, an infusion needle is inserted on the infusion port diaphragm 2, then liquid is conveyed into the flow guide cavity 3 and flows into the one-way flow cavity 11 through the flow guide cavity 3, then the one-way valve core 14 is pushed to slide in the one-way flow cavity 11 under the pushing action of the pressure and the mass of the flowing liquid, then the sealing pressure head 16 is separated from the attaching state with the sealing ring 12, then the one-way flow cavity 11 is communicated with the flow diversion groove 13, then the liquid flows into the flow diversion groove 13, then the liquid in the flow diversion groove 13 flows into the one-way valve core 14 through the valve core through hole 15, then the liquid in the one-way valve core 14 continuously flows, passes through the spring top plate 18 and flows to the infusion catheter 7, and then the blood is conveyed into the vein of the patient, when the blood of the vein of the patient flows back, the blood flows into the one-way valve tube 4 through the transfusion conduit 7 and the conduit connecting tube 5, then the blood passes through the spring top plate 18 and flows into the one-way valve core 14, under the action of the blood pressure and the elasticity of the spring 17, the one-way valve core 14 is pushed to slide towards the sealing ring 12 until the sealing pressure head 16 is tightly attached to the sealing ring 12, the one-way circulation cavity 11 is separated from the diversion groove 13, and the blood is prevented from flowing into the diversion cavity 3 through the one-way valve tube 4.
The installation mode, the connection mode or the arrangement mode of the implantable arterial infusion port are common mechanical modes, and the implantable arterial infusion port can be implemented as long as the beneficial effects of the implantable arterial infusion port can be achieved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. An implantable arterial infusion port is characterized by comprising an infusion port base (1), an infusion port diaphragm (2), a diversion cavity (3) and a conduit sealing mechanism, wherein the diversion cavity (3) is arranged in the infusion port base (1), the diversion cavity (3) is fixedly arranged at the top end of the infusion port base (1), and the conduit sealing mechanism is communicated and fixedly arranged on the infusion port base (1);
pipe sealing mechanism includes check valve pipe (4), pipe connecting pipe (5), pagoda joint (6), infusion pipe (7), port keep off face (8), compresses tightly the lantern ring (9) and compresses tightly hoop (10), check valve pipe (4) fixed mounting is on infusion port base (1), check valve pipe (4) and water conservancy diversion chamber (3) communicate each other, intercommunication fixed mounting has pipe connecting pipe (5) on check valve pipe (4), pipe connecting pipe (5) outer end is provided with pagoda joint (6), infusion pipe (7) suit is in the pagoda joint (6) outside, be provided with port on pipe connecting pipe (5) and keep off face (8), port keeps off face (8) and sets up at pagoda joint (6) terminal, infusion pipe (7) tip keeps off face (8) with the port and pastes tightly, pipe (5) are provided with the external screw thread connecting pipe, compress tightly lantern ring (9) screw thread suit on pipe connecting pipe (5), it is provided with around compressing tightly hoop (10) to compress tightly the lantern ring (9) inside, compress tightly hoop (10) and compress tightly the pipe (7) tip.
2. The implantable arterial port according to claim 1, further comprising a one-way circulation cavity (11), a sealing ring (12), a diversion groove (13), a one-way valve core (14), a valve core through hole (15), a sealing pressure head (16), a spring (17) and a spring top plate (18), wherein the one-way circulation cavity (11) is communicated with the inside of the one-way valve tube (4), the one-way circulation cavity (11) is communicated with the diversion cavity (3), the sealing ring (12) is arranged around the one-way circulation cavity (11), the diversion groove (13) is arranged around the one-way circulation cavity (11), the one-way valve core (14) is slidably inserted into the one-way circulation cavity (11), the one-way valve core (14) is communicated with a plurality of groups of valve core through holes (15), the sealing pressure head (16) is arranged at the end of the one-way valve core (14), the sealing pressure head (16) is attached to the sealing ring (12), the spring top plate (18) is fixedly installed inside the one-way valve tube (4), the spring (17) is fastened inside the one-way valve core (14), and the outer end of the spring (17) is connected with the spring top plate (18).
3. The implantable arterial port according to claim 1 wherein said compression end of said compression clamp (10) is configured as a curved surface.
4. An implantable arterial port according to claim 1 characterized in that the corners of the port base (1) are rounded.
5. An implantable arterial port according to claim 1 wherein said one way valve tube (4) and said catheter connection tube (5) are interconnected and wherein said one way valve tube (4), said catheter connection tube (5) and said pagoda adaptor (6) are all of one piece construction.
6. An implantable arterial port according to claim 1 characterized in that said port membrane (2) is made of silicone.
7. The implantable arterial port according to claim 1 wherein the outer end of the compression collar (9) is provided with anti-slip strips.
8. The implantable arterial port according to claim 2, wherein said spring top plate (18) is provided in a net shape and said spring top plate (18) is provided with a liquid communicating groove.
9. An implantable arterial port according to claim 2 wherein said sealing ring (12) is provided with a beveled leading surface at the input end.
10. An implanted arterial port according to claim 2 characterized in that the port base (1) is made of china porcelain.
CN202211425186.6A 2022-11-15 2022-11-15 Implanted arterial transfusion port Active CN115737978B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211425186.6A CN115737978B (en) 2022-11-15 2022-11-15 Implanted arterial transfusion port

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211425186.6A CN115737978B (en) 2022-11-15 2022-11-15 Implanted arterial transfusion port

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CN115737978A true CN115737978A (en) 2023-03-07
CN115737978B CN115737978B (en) 2024-03-08

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020161332A1 (en) * 2001-04-13 2002-10-31 Kirk Ramey Infusion set with tape
CA2475199A1 (en) * 2004-02-25 2005-08-25 Yaron Mayer System and method for using improved intravenous cannulas that solve the problem of blood spillage
CN104368059A (en) * 2014-11-18 2015-02-25 肖程午 Minimally invasive intervention implantable drug-supplying device with one-way valve
CN212940853U (en) * 2020-04-17 2021-04-13 山东威高集团医用高分子制品股份有限公司 Clinical joint connecting piece
CN213941724U (en) * 2020-11-12 2021-08-13 京美德(深圳)医疗科技有限公司 Implanted anti-reflux drug delivery device
CN114344620A (en) * 2022-02-02 2022-04-15 新疆医科大学第三附属医院 Implanted brachiocephalic venous transfusion port capable of effectively preventing falling
CN216317875U (en) * 2021-09-10 2022-04-19 长沙弘雅医疗科技有限公司 Implanted subarachnoid cavity administration device
CN115006713A (en) * 2022-05-31 2022-09-06 苏州市第九人民医院 Quick connection exchanger between pericardial catheter and drainage bag

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020161332A1 (en) * 2001-04-13 2002-10-31 Kirk Ramey Infusion set with tape
CA2475199A1 (en) * 2004-02-25 2005-08-25 Yaron Mayer System and method for using improved intravenous cannulas that solve the problem of blood spillage
CN104368059A (en) * 2014-11-18 2015-02-25 肖程午 Minimally invasive intervention implantable drug-supplying device with one-way valve
CN212940853U (en) * 2020-04-17 2021-04-13 山东威高集团医用高分子制品股份有限公司 Clinical joint connecting piece
CN213941724U (en) * 2020-11-12 2021-08-13 京美德(深圳)医疗科技有限公司 Implanted anti-reflux drug delivery device
CN216317875U (en) * 2021-09-10 2022-04-19 长沙弘雅医疗科技有限公司 Implanted subarachnoid cavity administration device
CN114344620A (en) * 2022-02-02 2022-04-15 新疆医科大学第三附属医院 Implanted brachiocephalic venous transfusion port capable of effectively preventing falling
CN115006713A (en) * 2022-05-31 2022-09-06 苏州市第九人民医院 Quick connection exchanger between pericardial catheter and drainage bag

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