CN106237455B - Exhaust joint - Google Patents
Exhaust joint Download PDFInfo
- Publication number
- CN106237455B CN106237455B CN201610799245.4A CN201610799245A CN106237455B CN 106237455 B CN106237455 B CN 106237455B CN 201610799245 A CN201610799245 A CN 201610799245A CN 106237455 B CN106237455 B CN 106237455B
- Authority
- CN
- China
- Prior art keywords
- exhaust
- port
- channel
- exhaust port
- air
- 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.)
- Active
Links
Images
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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/38—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using hydrophilic or hydrophobic filters
- A61M5/385—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using hydrophilic or hydrophobic filters using hydrophobic filters
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention relates to an exhaust joint, which comprises a joint body, wherein the joint body is provided with a channel and an exhaust interface which is communicated with the channel and is suitable for connection; the exhaust port is communicated with the channel and is provided with an exhaust membrane; a sealing device for sealing the air outlet is arranged on the air outlet. When the flushing indwelling needle exhausts air, the end cap is opened, liquid is injected from the main interface of the infusion joint of the indwelling needle, gas in the indwelling needle can be exhausted from the air exhaust membrane at the air exhaust port through the channel, and the liquid in the indwelling needle is blocked by the air exhaust membrane and cannot be exhausted; when the air in the remaining needle is exhausted, the end cap is covered on the air outlet to block the air outlet, so that the external air is prevented from entering the channel and the remaining needle through the air outlet film at the air outlet. The exhaust joint of the invention can not only exhaust the gas in the remaining needle, but also prevent the outside air from entering the remaining needle after the gas in the remaining needle is exhausted.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an exhaust joint.
Background
An indwelling needle is a medical device used for carrying out infusion treatment for a plurality of times within a certain period of time, and generally comprises a catheter, a catheter seat, an elastic extension tube, a liquid stopping clamp, a three-way infusion connector and the like, wherein the catheter is installed on the catheter seat, the liquid stopping clamp is arranged on the elastic extension tube, one end of the elastic extension tube is connected with the catheter seat, and the other end of the elastic extension tube is connected with the three-way infusion connector. The three-way infusion joint generally comprises a main interface, a side interface and an output port, wherein the output port is connected with the elastic extension pipe, the main interface is communicated with the infusion pipe and supplies liquid medicine into the elastic extension pipe through the output port, and the side interface is used for assisting in adding medicine into the elastic extension pipe.
Before the indwelling needle is used, the gas in the indwelling needle needs to be exhausted by liquid flow, and because the side interface is usually in a closed state in the exhaust process, the gas at the side interface is usually difficult to exhaust, so that the gas is possibly brought into blood vessels of a patient along with liquid medicine in the infusion process to cause air embolism, harm to the patient and even threat to the life safety of the patient are caused, and even if the gas does not enter a human body finally, the gas is seen by the patient to cause panic of the patient so as to influence the treatment effect.
Chinese patent document CN203694250U discloses a novel self-venting indwelling needle, which comprises a needle head assembly and a Y-shaped needle stand connected by a catheter, wherein a heparin cap is arranged at one end of the Y-shaped needle stand, a bacteria-proof cap is arranged at the other end of the Y-shaped needle stand, an air outlet is arranged at the top of the bacteria-proof cap, a hydrophobic breathable film is arranged at the air outlet, and the hydrophobic breathable film allows gas to pass through but not allow liquid to pass through. This prior art utilizes the hydrophobic ventilated membrane of installing in fungi-proofing cap top exhaust port department, though can be in clinical use with the gas outgoing in the Y type needle file, nevertheless because be used for carminative hydrophobic ventilated membrane to install at fungi-proofing cap top, consequently can't prevent in the outside air entering keeps somewhere the needle to still can't prevent effectively that gas from sneaking into in the liquid medicine gets into in the patient blood vessel.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the indwelling needle in the prior art cannot prevent the external air from entering into the needle after the air is exhausted, thereby providing an air exhaust connector which can prevent the external air from entering into the indwelling needle after the indwelling needle is completely exhausted.
The invention relates to an exhaust joint, which comprises a joint body, wherein the joint body is provided with a channel and an exhaust interface which is communicated with the channel and is suitable for connection; the exhaust port is communicated with the channel and is provided with an exhaust membrane; a sealing device for sealing the air outlet is arranged on the air outlet.
A medicine feeding port is formed in the joint body; the medicine feeding port is provided with a medicine feeding port cover.
And an exhaust pipeline communicated with the channel is formed by outwards extending the side wall of the channel, and the exhaust membrane is arranged in the exhaust pipeline in a sealing manner.
The sealing device is an end cap arranged at one end of the exhaust pipeline far away from the channel, or is a three-way cock arranged at the junction of the channel and the exhaust pipeline.
The periphery of the end wall of one end of the channel, which is far away from the exhaust interface, is provided with the exhaust port, and the exhaust membrane is hermetically arranged on the exhaust port; the sealing device is switchable between a first state blocking communication between the outside and the passage and a second state communicating the outside and the passage.
The air vent encircles the medicine feeding opening shaping, includes two at least exhaust holes.
The exhaust port also comprises an annular exhaust groove which is formed at one end of the exhaust hole close to the channel and is respectively communicated with the channel and the exhaust hole;
the exhaust membrane is hermetically arranged on one side of the annular exhaust groove far away from the exhaust hole.
The joint body comprises a base and an upper cover which can be mutually detached and installed, the sealing device comprises a sealing gasket arranged on the end face of the side wall of the channel close to the air outlet, and the air outlet can be sealed when the base and the upper cover move relatively close to each other.
The sealing device is detachably arranged on the outer pipe wall of the dosing port and can move towards the direction close to the exhaust port relative to the joint body and seal the exhaust port.
The medicine adding port cover is a puncture plug which can be directly punctured for infusing medicine liquid.
The technical scheme of the invention has the following advantages:
1. the invention provides an exhaust joint, which comprises a joint body, a connecting piece and a connecting piece, wherein the joint body is provided with a channel and an exhaust interface which is communicated with the channel and is suitable for connection; the exhaust port is communicated with the channel and is provided with an exhaust membrane; a sealing device for sealing the air outlet is arranged on the air outlet. When the flushing indwelling needle exhausts air, the end cap is opened, liquid is injected from the main interface of the infusion joint of the indwelling needle, gas in the indwelling needle can be exhausted from the air exhaust membrane at the air exhaust port through the channel, and the liquid in the indwelling needle is blocked by the air exhaust membrane and cannot be exhausted; when the air in the remaining needle is exhausted, the end cap is covered on the air outlet to block the air outlet, so that the external air is prevented from entering the channel and the remaining needle through the air outlet film at the air outlet. The exhaust joint of the invention can not only exhaust the gas in the remaining needle, but also prevent the outside air from entering the remaining needle after the gas in the remaining needle is exhausted.
2. According to the exhaust joint provided by the invention, the side wall of the channel is outwards extended to form the exhaust pipeline communicated with the channel, and the exhaust membrane is hermetically arranged in the exhaust pipeline. The exhaust port and the dosing port are respectively located in an exhaust pipeline and two different pipelines of the channel, the dosing can be realized by directly injecting liquid medicine into the heparin cap of the dosing port through the puncture cover, two functions of exhausting and dosing are realized, and the realization processes are not interfered with each other.
3. According to the exhaust joint provided by the invention, the periphery of the end wall of one end of the channel, which is far away from the exhaust interface, is provided with the exhaust port, and the exhaust membrane is hermetically arranged on the exhaust port; the sealing device is switchable between a first state blocking communication between the exhaust port and the passage and a second state communicating the exhaust port and the passage. The gas in the remaining needle can be exhausted, and the outside air can be prevented from entering the remaining needle after the gas in the remaining needle is exhausted.
4. According to the exhaust joint provided by the invention, the exhaust port is formed around the dosing port and comprises at least two exhaust holes. The periphery and the center of the exhaust port and the medicine feeding port separated passage are at two different positions, medicine can be directly fed by injecting liquid medicine into the heparin cap of the medicine feeding port through the puncture cover, two functions of exhausting and feeding are realized, and the realization processes are not interfered with each other.
5. The exhaust joint provided by the invention is characterized in that the exhaust port further comprises an annular exhaust groove, and the annular exhaust groove is formed at one end of the exhaust hole close to the channel and is respectively communicated with the channel and the exhaust hole; the exhaust membrane is hermetically arranged on one side of the annular exhaust groove far away from the exhaust hole. The annular exhaust groove is arranged at one end of the exhaust hole close to the channel, so that air can be captured more fully in the exhaust process, and the exhaust efficiency is improved.
6. According to the exhaust connector provided by the invention, the medicine adding opening cover is a puncture plug which can be directly punctured for infusing medicine liquid. The medicine adding port cover in the form of the puncture plug can be directly used for medicine adding by puncture infusion, the operation is simple and clean, and gas is not easy to enter in the medicine adding process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a vent connector mounted on an infusion connector according to embodiment 1 of the present invention, wherein an end cap is in an open state;
FIG. 2 is a schematic view of the vent connector of FIG. 1 shown in another condition mounted on an infusion connector with the end cap in a closed condition;
FIG. 3 is a schematic view showing a state where a cock is in a state of communicating a passage with an exhaust port, in which an exhaust adapter is mounted on an infusion adapter according to embodiment 2 of the present invention;
FIG. 4 is a schematic view showing another state in which the exhaust adapter shown in FIG. 3 is mounted on the administration adapter, in which the cock is in a state of blocking the communication between the passage and the exhaust port;
FIG. 5 is an exploded view of the air bleed connector of example 3 of the present invention mounted on an infusion connector with the end cap in an unsealed vent configuration;
FIG. 6 is a schematic view of the vent connector of FIG. 5 shown in another condition mounted on an infusion connector with the end cap in a closed vent condition;
FIG. 7 is a schematic view of the vent fitting provided in example 4 of the present invention mounted on an indwelling needle;
FIG. 8 is a schematic view of a vent fitting provided in example 4 of the present invention, wherein the gasket is in a non-vent-closing state;
FIG. 9 is a schematic view of another state of the exhaust fitting shown in FIG. 8 with the gasket in a closed exhaust port state;
FIG. 10 is a bottom schematic view of the upper cover of the exhaust fitting of FIG. 8;
FIG. 11 is a schematic view of a vent fitting provided in example 5 of the present invention, wherein the gasket is in a non-sealing vent state;
FIG. 12 is a schematic view of another state of the vent fitting of FIG. 11 with the sealing ring in a state sealing the vent opening;
description of reference numerals:
1-joint body, 11-channel, 12-exhaust interface, 13-base, 14-upper cover, 2-exhaust membrane, 3-exhaust port, 31-exhaust port, 32-annular exhaust groove, 4-exhaust pipeline, 5-dosing port, 51-dosing port cover, 61-end cap, 62-three-way cock, 63-sealing gasket, 64-sealing ring, 100-exhaust interface, 200-infusion interface, 201-side interface and 202-main interface.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1 and 2, the present embodiment provides a vent connector 100 adapted to be mounted on a side port 201 of an infusion connector 200 of an indwelling needle, comprising a connector body 1, a vent membrane 2, and a sealing means.
The joint body 1 has a passage 11, an exhaust port 12 connected to and communicating with the passage 11, and an exhaust port 3 communicating with the passage 11. An exhaust duct 4 communicated with the channel 11 is formed by extending outwards on the side wall of the channel 11, and the exhaust port 3 is arranged on the exhaust duct 4. One end of the channel 11 is connected and communicated with the side interface 201 of the infusion connector 200, the other end is provided with a medicine adding port 5, the exhaust connector 100 can add medicine into the infusion connector 200 of the indwelling needle through the medicine adding port 5, and the medicine adding port cover 51 is arranged on the medicine adding port 5 and used for sealing the medicine adding port 5 so as to ensure the cleanness of the medicine adding port 5 and the channel 11. The medicine adding port cover 51 is a heparin cap fixedly connected with the medicine adding port 5, can be directly punctured and injected with liquid medicine, is simple and clean to operate, and is not easy to enter gas in the medicine adding process.
The exhaust membrane 2 is provided on the exhaust port 3 and closes the exhaust duct 4. The gas discharge membrane 2 is a membrane that allows gas to pass therethrough but does not allow liquid to pass therethrough, and is used to discharge gas from the channel 11.
The sealing device is an end cap 61 installed at one end of the exhaust pipeline 4 far away from the channel 11, and is arranged on the exhaust port 3 and used for sealing the exhaust port 3 after the exhaust port 3 is exhausted, so that external gas is prevented from entering the channel 11 through the exhaust port 3.
When the flushing indwelling needle exhausts the indwelling needle, as shown in fig. 1, the end cap 61 is opened, liquid is injected from the main interface 202 of the infusion connector 200 of the indwelling needle, the gas in the indwelling needle can be exhausted from the exhaust membrane 2 at the exhaust port 3 through the channel 11, and the liquid in the indwelling needle is blocked by the exhaust membrane 2 and is not exhausted; when the air in the indwelling needle is exhausted, as shown in fig. 2, the end cap 61 is covered on the air outlet 3 to close the air outlet 3, and the external air is prevented from entering the passage 11 and the indwelling needle through the air outlet membrane 2 at the air outlet 3. The air vent joint 100 of the present embodiment can exhaust the air in the indwelling needle and prevent the outside air from entering the indwelling needle after the air in the indwelling needle is exhausted.
In this embodiment, the side wall of the channel 11 is extended outward to form the exhaust duct 4 communicated with the channel 11, and the exhaust port 3 is disposed on the exhaust duct 4. Exhaust port 3 and add medicine mouth 5 branch and place in exhaust duct 4 and two different pipelines of passageway 11, can directly pour into the liquid medicine into in the heparin cap that adds medicine mouth 5 through the puncture lid and realize adding the medicine, have exhaust and add two functions of medicine concurrently, the realization process is mutual noninterference.
In other embodiments, the medicated cap 51 may be a piercing plug made of other elastic materials.
In other embodiments, the medicine adding port cover 51 can also be a common end cap 61 detachably connected to the medicine adding port 5, and when medicine needs to be added from the medicine adding port 5, the end cap 61 is removed; when the medicine is not needed to be added from the medicine adding port 5, the end cap 61 is covered.
Example 2
As shown in fig. 3 and 4, the present embodiment is different from embodiment 1 in that:
the sealing means is a three-way tap 62 mounted at the intersection of the passage 11 and the exhaust duct 4.
When the flushing indwelling needle exhausts the indwelling needle, as shown in fig. 3, the three-way cock 62 is rotated to communicate the channel 11 with the exhaust port 3, liquid is injected from the main port 202 of the infusion connector 200 of the indwelling needle, gas in the indwelling needle can be exhausted from the exhaust membrane 2 at the exhaust port 3 through the channel 11, and liquid in the indwelling needle is blocked by the exhaust membrane 2 and is not exhausted; after the air in the remaining needle is exhausted, as shown in fig. 4, the three-way cock 62 is rotated to communicate the channel 11 with the medicine adding port 5, and simultaneously, the channel 11 and the medicine adding port 5 are not communicated with the exhaust port 3, the exhaust port 3 is blocked, and the external air is prevented from entering the channel 11 and the remaining needle through the exhaust membrane 2 at the exhaust port 3.
Example 3
As shown in fig. 5 and 6, the present embodiment provides a vent connector 100 adapted to be mounted on a side port 201 of an infusion connector 200 of an indwelling needle, comprising a connector body 1, a vent membrane 2, and a sealing means.
The connector body 1 has a channel 11 and an exhaust port 12 connected to and communicating with the channel 11, one end of the channel 11 is connected to and communicates with a side port 201 of the infusion connector 200, and the other end is provided with an exhaust port 3. The exhaust membrane 2 is provided on the exhaust port 3 and closes the passage 11. The gas discharge membrane 2 is a membrane that allows gas to pass therethrough but does not allow liquid to pass therethrough, and is used to discharge gas from the channel 11.
The sealing device is an end cap 61 disposed on the exhaust port 3, and is used for sealing the exhaust port 3 after the exhaust port 3 is exhausted, so as to prevent external air from entering the channel 11 through the exhaust port 3.
When the flushing indwelling needle exhausts the indwelling needle, as shown in fig. 5, the end cap 61 is opened, liquid is injected from the main port 202 of the infusion connector 200 of the indwelling needle, the gas in the indwelling needle can be exhausted from the exhaust membrane 2 at the exhaust port 3 through the channel 11, and the liquid in the indwelling needle is blocked by the exhaust membrane 2 and is not exhausted; after the air in the indwelling needle is exhausted, as shown in fig. 6, the end cap 61 is covered on the exhaust port 3 to close the exhaust port 3, thereby preventing the external air from entering the passage 11 and the indwelling needle through the exhaust membrane 2 at the exhaust port 3. The air vent joint 100 of the present embodiment can also exhaust the air in the indwelling needle and prevent the external air from entering the indwelling needle after the air in the indwelling needle is exhausted.
Example 4
As shown in fig. 7-9, the present embodiment provides a vent connector 100 adapted to be mounted on a side port 201 of an infusion connector 200 of an indwelling needle, comprising a connector body 1, a vent membrane 2, and a sealing means.
The joint body 1 includes a base 13 and an upper cover 14. An external thread is formed on the outer wall of the base 13, an internal thread is formed on the inner wall of the upper cover 14, and the base 13 and the upper cover 14 are connected together in a thread matching mode. The base 13 is formed with a channel 11 and an exhaust port 12 connected to and communicating with an end of the channel 11 remote from the upper cover 14. One end of the channel 11 is connected and communicated with the side interface 201 of the infusion connector 200, the other end is provided with a medicine adding port 5, the exhaust connector 100 can add medicine into the infusion connector 200 of the indwelling needle through the medicine adding port 5, and the medicine adding port cover 51 is arranged on the medicine adding port 5 and used for sealing the medicine adding port 5 so as to ensure the cleanness of the medicine adding port 5 and the channel 11. The medicine adding port cover 51 is a heparin cap fixedly connected with the medicine adding port 5, can be directly punctured and injected with liquid medicine, is simple and clean to operate, and is not easy to enter gas in the medicine adding process.
Referring to fig. 10, an exhaust port 3 surrounding the dosing port 5 is formed on the upper cover 14, the exhaust port 3 includes a plurality of exhaust holes 31 uniformly distributed along the circumferential direction of the dosing port 5, and an annular exhaust groove 32, and the annular exhaust groove 32 is formed at one end of the exhaust hole 31 close to the channel 11 and is respectively communicated with the channel 11 and the exhaust hole 31. An annular exhaust groove 32 is formed at one end of the exhaust hole 31 close to the channel 11, so that air can be captured more fully in the exhaust process, and the exhaust efficiency is improved.
The exhaust membrane 2 is mounted in a closed manner on the side of the annular exhaust groove 32 remote from the exhaust opening 31. The gas discharge membrane 2 is a membrane that allows gas to pass therethrough but does not allow liquid to pass therethrough, and is used to discharge gas from the channel 11.
The sealing means comprises a gasket 63 provided on the end face of the side wall of the passage 11 on the base 13 near the exhaust port 3. When the base 13 and the upper cover 14 are rotated to move the base 13 and the upper cover 14 relatively close to each other, as shown in fig. 9, the packing 63 moves close to the exhaust port 3 and eventually seals the exhaust port 3 in a first state of blocking the communication between the exhaust port 3 and the passage 11; when the base 13 and the upper cover 14 are rotated to move the base 13 and the upper cover 14 relatively away from each other, as shown in fig. 8, the packing 63 moves away from the exhaust port 3 and eventually releases the seal of the exhaust port 3 to be placed between a second state in which the exhaust port 3 communicates with the passage 11. The gasket 63 is switchable between the first state and the second state in response to adjustment of the relative movement between the base 13 and the upper cover 14.
When the flushing indwelling needle exhausts, the base 13 and the upper cover 14 are rotated to relatively move away from the base 13 and the upper cover 14, as shown in fig. 8, the sealing gasket 63 moves away from the exhaust port 3 to be in a second state of communicating the exhaust port 3 with the channel 11, liquid is injected from the main interface 202 of the infusion connector 200 of the indwelling needle, gas in the indwelling needle can be exhausted from the exhaust membrane 2 at the exhaust port 3 through the channel 11, and the liquid in the indwelling needle is blocked by the exhaust membrane 2 and cannot be exhausted; when the air in the indwelling needle is exhausted, the base 13 and the upper cover 14 are rotated to move the base 13 and the upper cover 14 relatively close to each other, and as shown in fig. 9, the sealing gasket 63 moves close to the exhaust port 3 and finally seals the exhaust port 3 to be in a first state of blocking the communication between the exhaust port 3 and the passage 11, so as to prevent the external air from entering the passage 11 and the indwelling needle through the exhaust membrane 2 at the exhaust port 3. The air vent joint 100 of the present embodiment can also exhaust the air in the indwelling needle and prevent the outside air from entering the indwelling needle after the air in the indwelling needle is exhausted. In addition, when the transfusion is carried out under high pressure, the exhaust port 3 is sealed from the side of the exhaust membrane 2 close to the channel 11 by the sealing gasket 63, so that the exhaust membrane 2 can be effectively protected, and the exhaust membrane 2 is not easy to break under the high pressure of the transfusion.
In this embodiment, the exhaust port 3 is formed around the medicine addition port 5. The exhaust port 3 and the dosing port 5 are respectively arranged at two different positions of the periphery and the center of the channel 11, the dosing can be realized by directly injecting liquid medicine into the heparin cap of the dosing port 5 through the puncture cover, and the two functions of exhausting and dosing are realized, so that the realization processes are not interfered with each other.
In other embodiments, the medicated cap 51 may be a piercing plug made of other elastic materials.
In other embodiments, the medicine adding port cover 51 can also be a common end cap 61 detachably connected to the medicine adding port 5, and when medicine needs to be added from the medicine adding port 5, the end cap 61 is removed; when the medicine is not needed to be added from the medicine adding port 5, the end cap 61 is covered.
In other embodiments, the base 13 and the upper cover 14 may be movably mounted, as long as the upper cover 14 and the base 13 can move relatively, for example, the base 13 may be connected in a snap-fit manner, a clip block is formed on an outer wall of the base 13, a clip groove for the clip block to be clipped into is formed on a corresponding portion of an inner wall of the upper cover 14, the clip block and the clip groove form a snap-fit manner in the process of inserting the base 13 into the upper cover 14, so as to mount and fix the base 13 and the upper cover 14, at this time, the sealing pad 63 seals the exhaust port 3, and the snap-fit connection manner can also realize switching of the sealing pad 63 between the first state and the second state.
In other embodiments, the annular exhaust groove 32 is not provided, and the exhaust membrane 2 is hermetically installed on one side of the exhaust hole 31 close to the base 13, so that the function of exhausting the gas in the indwelling needle, preventing the outside air from entering the indwelling needle after the gas in the indwelling needle is exhausted, and having two functions of exhausting and adding medicine without interfering with each other in the exhausting and adding medicine processes can be realized.
Example 5
As shown in fig. 11 and 12, the present embodiment is different from embodiment 4 in that:
an external thread is formed on the outer wall of one end of the upper cover 14 far away from the base 13;
the sealing device is no longer a sealing gasket 63 arranged on the end face of the side wall of the channel 11 on the base 13 near the exhaust port 3, but a sealing ring 64 with an inner thread formed on the inner wall thereof for matching with the outer thread on the outer wall of the upper cover 14, wherein the sealing ring 64 is screwed on the outer wall of the upper cover 14 and can move towards the direction near the exhaust port 3 relative to the upper cover 14 and seal the exhaust port 3.
When the indwelling needle is flushed and exhausted, the sealing ring 64 on the upper cover 14 is rotated to enable the sealing ring 64 and the upper cover 14 to move relatively away from each other, as shown in fig. 11, the sealing ring 64 moves away from the exhaust port 3 and is in a second state of communicating the outside with the channel 11, liquid is injected from the main interface 202 of the infusion connector 200 of the indwelling needle, gas in the indwelling needle can be exhausted from the exhaust membrane 2 at the exhaust port 3 through the channel 11, and the liquid in the indwelling needle is blocked by the exhaust membrane 2 and cannot be exhausted; when the air in the indwelling needle is exhausted, the packing 64 on the upper cap 14 is rotated to move the packing 64 and the upper cap 14 relatively close to each other, as shown in fig. 12, the packing 64 moves close to the exhaust port 3 and finally seals the exhaust port 3 to be in a first state of blocking the communication between the outside and the passage 11, and thus the outside air is prevented from entering the passage 11 and the indwelling needle through the exhaust membrane 2 at the exhaust port 3. The air vent joint 100 of the present embodiment can also exhaust the air in the indwelling needle and prevent the external air from entering the indwelling needle after the air in the indwelling needle is exhausted.
In other embodiments, the body may not be separated into two parts, i.e., the base 13 and the cover 14, and may be a single body.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (1)
1. An exhaust fitting comprising a fitting body (1), the fitting body (1) having a passage (11) and an exhaust interface (12) in communication with the passage (11) and adapted for connection thereto; the exhaust device is characterized by also comprising at least one exhaust port (3) communicated with the channel (11), wherein an exhaust membrane (2) is arranged on the exhaust port (3); a sealing device for sealing the exhaust port (3) is arranged on the exhaust port (3);
a medicine adding port (5) is formed in the joint body (1); the medicine feeding port (5) is provided with a medicine feeding port cover (51);
the periphery of the end wall of one end of the channel (11) far away from the exhaust interface (12) is formed with the exhaust port (3), and the exhaust membrane (2) is hermetically mounted on the exhaust port (3); said sealing means being switchable between a first state in which it blocks communication between the environment and said passage (11), and a second state in which it communicates between the environment and said passage (11);
the exhaust port (3) is formed around the dosing port (5) and comprises at least two exhaust holes (31);
the joint body (1) comprises a base (13) and an upper cover (14) movably arranged on the base (13), the sealing device comprises a sealing gasket (63) arranged on the end face, close to the exhaust port (3), of the side wall of the channel (11), and the exhaust port (3) can be sealed when the base (13) and the upper cover (14) move close to each other relatively; the exhaust port (3) further comprises an annular exhaust groove (32), and the annular exhaust groove (32) is formed at one end, close to the channel (11), of the exhaust hole (31) and is respectively communicated with the channel (11) and the exhaust hole (31);
the exhaust membrane (2) is hermetically arranged on one side of the annular exhaust groove (32) far away from the exhaust hole (31);
the medicine adding opening cover (51) is a puncture plug which can be directly punctured for infusing medicine liquid.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799245.4A CN106237455B (en) | 2016-08-31 | 2016-08-31 | Exhaust joint |
| CN202210216627.5A CN114870166B (en) | 2016-08-31 | 2016-08-31 | Exhaust joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799245.4A CN106237455B (en) | 2016-08-31 | 2016-08-31 | Exhaust joint |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210216627.5A Division CN114870166B (en) | 2016-08-31 | 2016-08-31 | Exhaust joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106237455A CN106237455A (en) | 2016-12-21 |
| CN106237455B true CN106237455B (en) | 2022-09-20 |
Family
ID=58081040
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610799245.4A Active CN106237455B (en) | 2016-08-31 | 2016-08-31 | Exhaust joint |
| CN202210216627.5A Active CN114870166B (en) | 2016-08-31 | 2016-08-31 | Exhaust joint |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210216627.5A Active CN114870166B (en) | 2016-08-31 | 2016-08-31 | Exhaust joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106237455B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754049A (en) * | 2016-12-27 | 2018-03-06 | 上海交通大学 | Prevent the device that remaining needle positive pressure connector pollutes and the method based on the device |
| CN107596488B (en) * | 2017-07-17 | 2020-06-30 | 徐州一佳医疗器械有限公司 | Buckled water-blocking Y-shaped injection piece and automatic production method thereof |
| CN113577452B (en) * | 2021-07-08 | 2024-01-09 | 江西洪达医疗器械集团有限公司 | Liquid medicine filter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931387A (en) * | 2005-09-15 | 2007-03-21 | 榎本股份有限公司 | Medical device |
| CN102131536A (en) * | 2008-07-02 | 2011-07-20 | 泰尔茂株式会社 | Connector and infusion tube set |
| CN203694250U (en) * | 2014-01-09 | 2014-07-09 | 江苏苏云医疗器材有限公司 | Novel self-exhausting remaining needle |
| CN203989270U (en) * | 2014-08-11 | 2014-12-10 | 黄敏 | Quick blood return indwelling needle |
| CN204890798U (en) * | 2015-08-31 | 2015-12-23 | 四川大学华西医院 | Transfusion system |
| CN105435331A (en) * | 2015-12-12 | 2016-03-30 | 上海宝舜医疗器械有限公司 | Safety indwelling needle |
| CN206482932U (en) * | 2016-08-31 | 2017-09-12 | 广东龙心医疗器械有限公司 | Exhaust joint |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790824A (en) * | 1987-06-19 | 1988-12-13 | Bioject, Inc. | Non-invasive hypodermic injection device |
| WO2001039826A1 (en) * | 1998-06-03 | 2001-06-07 | Nippon Sherwood Medical Industries Ltd. | Medical cock |
| EP1296730B2 (en) * | 2000-01-07 | 2014-07-30 | Valeritas, Inc. | Injection device |
| US8523829B2 (en) * | 2004-01-29 | 2013-09-03 | Becton, Dickinson And Company | Intravenous delivery system |
| CN100448493C (en) * | 2006-07-12 | 2009-01-07 | 贾宇东 | The position and the sequence of versatile exhausting box and flow governor on the transfusional device |
| JP5146744B2 (en) * | 2008-05-01 | 2013-02-20 | 株式会社ジェイ・エム・エス | Medical connection port, medical container, and medical container set |
| CN201361314Y (en) * | 2009-02-24 | 2009-12-16 | 佛山市爱迪医疗器械有限公司 | Retaining needle capable of discharging gas automatically |
| CN101947337B (en) * | 2010-09-08 | 2013-09-18 | 福建省百仕韦医用高分子股份有限公司 | Closed type detaining needle catheter assembly |
| CN203075375U (en) * | 2012-12-31 | 2013-07-24 | 魏安 | Air exhausting device and filter of medical infusion device |
| CN104288874B (en) * | 2013-07-19 | 2017-09-26 | 广东龙心医疗器械有限公司 | Disposable automatic exhaust stops liquid transfusion device and method |
| CN203493988U (en) * | 2013-10-08 | 2014-03-26 | 成都市新津事丰医疗器械有限公司 | Precise filtration bag type infusion set with automatic exhaust function |
| WO2015154302A1 (en) * | 2014-04-11 | 2015-10-15 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector having medicinal solution filtering function |
| TWM506613U (en) * | 2015-04-14 | 2015-08-11 | Great Kuei Tai Inc | Safety intravascular cannula |
-
2016
- 2016-08-31 CN CN201610799245.4A patent/CN106237455B/en active Active
- 2016-08-31 CN CN202210216627.5A patent/CN114870166B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931387A (en) * | 2005-09-15 | 2007-03-21 | 榎本股份有限公司 | Medical device |
| CN102131536A (en) * | 2008-07-02 | 2011-07-20 | 泰尔茂株式会社 | Connector and infusion tube set |
| CN203694250U (en) * | 2014-01-09 | 2014-07-09 | 江苏苏云医疗器材有限公司 | Novel self-exhausting remaining needle |
| CN203989270U (en) * | 2014-08-11 | 2014-12-10 | 黄敏 | Quick blood return indwelling needle |
| CN204890798U (en) * | 2015-08-31 | 2015-12-23 | 四川大学华西医院 | Transfusion system |
| CN105435331A (en) * | 2015-12-12 | 2016-03-30 | 上海宝舜医疗器械有限公司 | Safety indwelling needle |
| CN206482932U (en) * | 2016-08-31 | 2017-09-12 | 广东龙心医疗器械有限公司 | Exhaust joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114870166B (en) | 2023-06-20 |
| CN106237455A (en) | 2016-12-21 |
| CN114870166A (en) | 2022-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5325789B2 (en) | Extravascular ventilation system | |
| JP3448293B2 (en) | Connection device having a seal provided with a slit in advance | |
| CN106237455B (en) | Exhaust joint | |
| CA2636913C (en) | Connection structure for connector | |
| JP2001514556A (en) | Docking port for medical fluid set | |
| CN101648050A (en) | Luer integrated air venting system | |
| CA2531422A1 (en) | Coupling device for medical lines | |
| JPWO2004062721A1 (en) | Seal valve for medical device, connection port, mixed injection tube, infusion circuit connection device, and infusion circuit connection system | |
| WO2017118244A1 (en) | Infusion connector, and infusion tube and infusion device provided with infusion connector | |
| CA3006727A1 (en) | Flexible cap for conical connectors | |
| KR20130017494A (en) | Drainage bag and manufacturing process of the same | |
| CN206482932U (en) | Exhaust joint | |
| CN200939265Y (en) | Connection joint and fluid transferring means | |
| ES2819843T3 (en) | Extraction port to extract a liquid, system and use of an extraction port | |
| CN204307149U (en) | Closed positive pressure remaining needle | |
| CN104703638A (en) | Plug, medical module and medical system | |
| JP2004195181A (en) | Infusion circuit connecting implement, and infusion circuit connecting system | |
| CN201806995U (en) | Germproof needleless closed infusion joint | |
| CN213667215U (en) | Novel cap and infusion set using same | |
| CN210020525U (en) | Negative pressure drainage bottle capable of being repeatedly pumped | |
| JP2004016437A (en) | Syringe connection port | |
| CN107684645A (en) | Medical connector | |
| TWI808429B (en) | Feeding conduit assembly having capability for a separable function and a sealable function | |
| CN216168071U (en) | Medicine static pushing leakage-proof injector | |
| CN211355846U (en) | Forceps channel cap capable of preventing surgical liquid from flowing backwards, operation part and endoscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |