CN220236978U - Self-prefilled internal fistula puncture needle for closed physiological saline - Google Patents
Self-prefilled internal fistula puncture needle for closed physiological saline Download PDFInfo
- Publication number
- CN220236978U CN220236978U CN202320619287.0U CN202320619287U CN220236978U CN 220236978 U CN220236978 U CN 220236978U CN 202320619287 U CN202320619287 U CN 202320619287U CN 220236978 U CN220236978 U CN 220236978U
- Authority
- CN
- China
- Prior art keywords
- packaging bag
- liquid storage
- puncture needle
- pipeline
- internal fistula
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 206010016717 Fistula Diseases 0.000 title claims abstract description 31
- 230000003890 fistula Effects 0.000 title claims abstract description 31
- 239000002504 physiological saline solution Substances 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 238000004806 packaging method and process Methods 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000000502 dialysis Methods 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 206010003226 Arteriovenous fistula Diseases 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000010100 anticoagulation Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000003055 low molecular weight heparin Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 210000004026 tunica intima Anatomy 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present utility model relates to the field of medical devices. The sealed physiological saline self-prefilled internal fistula puncture needle comprises a needle assembly, a packaging bag and a liquid storage bag, wherein the needle assembly comprises a needle body and a pipeline which are sequentially connected, the liquid storage bag is sealed with physiological saline, and a one-way valve for preventing liquid from being discharged is arranged at the end part of the liquid storage bag; the end part of the pipeline is detachably connected with a joint which is used for inserting a one-way valve and conducting the liquid storage bag and the pipeline; a needle assembly is arranged in the packaging bag; the liquid storage bag is connected with the packaging bag, the port of the one-way valve is positioned in the packaging bag, the connector is limited and fixed in the packaging bag, and the connector is opposite to the port of the one-way valve. The utility model is convenient to realize that the physiological saline can be pre-filled without disassembling the external package by optimizing the structure of the internal fistula puncture needle. When the physiological saline needs to be pre-filled, the connector is inserted into the one-way valve, so that the one-way valve is opened, a liquid inlet pipeline of the liquid storage bag and the needle body are clamped from the outside of the packaging bag through the pipeline clamp device, and the clamping for standby is realized.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to an internal fistula puncture needle.
Background
Autologous arteriovenous fistula (AVF) is the vascular channel of choice for maintenance hemodialysis treatment, and the function of this pathway has a direct impact on patient survival rate and quality of life.
In the treatment process, an operation nurse needs to puncture an internal fistula blood vessel for 2 times, the puncture is successful and follows the doctor's advice, the internal fistula puncture needle is used for anticoagulation by low molecular heparin, and finally a dialysis pipeline is connected for blood drawing and loading, so that the dialysis treatment is started. In the link of the internal fistula vascular puncture, when uncontrollable factors such as a high blood coagulation state of a patient, poor internal fistula vascular puncture conditions, prolonged puncture time and the like are met, the risk of thrombus formed inside the steel needle of the internal fistula puncture needle to block the puncture needle is increased, so that the puncture failure rate is increased for the patient, the internal fistula vascular intima is damaged, and the operation inconvenience of nurses is increased.
In order to ensure the risk of thrombus blockage of the puncture needle during the puncture process, the puncture of the internal fistula puncture needle is performed after the internal fistula puncture needle is pre-filled with physiological saline clinically at present. The pre-filling method of physiological saline currently has two methods clinically:
firstly, unpacking the tail end of the puncture needle, taking down the plugging cap at the tail end of the puncture needle, and connecting 5 milliliters of a sterile physiological saline injector for prefilling. After the normal saline is filled in the puncture needle pipeline, the puncture needle is clamped, and the plugging cap is screwed back. Finally, the mixture is stored in a sterile treatment towel for standby.
And secondly, disassembling the packaging tail end of the puncture needle, taking down the plugging cap at the tail end of the puncture needle, connecting the infusion end of the dialysis pipeline for prefilling, clamping the puncture needle after the physiological saline is filled in the puncture needle pipeline, and screwing back the plugging cap. Finally, the mixture is stored in a sterile treatment towel for standby.
The two methods have the defects that the packaging bag of the puncture needle is required to be disassembled and the plugging cap is required to be unscrewed in the early stage, so that the requirement of the sterile principle of the puncture operation is destroyed, and the probability of pollution of the puncture needle and the risk of internal fistula infection of a patient are increased. At present, a sterile method for realizing pipeline pre-filling without opening an external packing bag is lacking.
Through searching the prior patent, there is a patent for injecting physiological saline into a pipeline, such as the Chinese patent with publication number of CN114712668A, a balloon filled with physiological saline is arranged on the side wall of the pipeline, a one-way valve is arranged between the balloon and the pipeline, and further the one-way flow of the physiological saline in the pipeline is realized. Although this patent can realize filling of the normal saline, once the balloon is touched by mistake, the normal saline can flow into the pipeline in advance, and the controllability of the pre-filling of the normal saline cannot be realized.
Disclosure of Invention
The present utility model has been made to solve at least one of the above-mentioned problems occurring in the prior art, and it is an object of the present utility model to provide a self-priming internal fistula puncture needle with closed physiological saline.
The technical scheme of the utility model is as follows: the self-prefilled internal fistula puncture needle is characterized by also comprising a liquid storage bag sealed with normal saline, wherein a one-way valve for preventing liquid from being discharged is arranged at the end part of the liquid storage bag;
the end part of the pipeline is detachably connected with a joint which is used for being inserted into the one-way valve and conducting the liquid storage bag and the pipeline;
the needle assembly is arranged in the packaging bag;
the liquid storage bag is connected with the packaging bag, the port of the one-way valve is positioned in the packaging bag, the connector is limited and fixed in the packaging bag, and the connector is opposite to the port of the one-way valve.
The utility model is convenient to realize that the physiological saline can be pre-filled without disassembling the external package by optimizing the structure of the internal fistula puncture needle. When the physiological saline needs to be pre-filled, the connector is inserted into the one-way valve, so that the one-way valve is opened, a liquid inlet pipeline of the liquid storage bag and the needle body are clamped from the outside of the packaging bag through the pipeline clamp device, and the clamping for standby is realized.
Further preferably, scale marks are arranged on the pipeline.
The distance between the arterial needle and the venous needle is avoided, and the distance between the arterial needle and the venous needle is controlled to be a safe distance.
Further preferably, a fixing seat is installed in the packaging bag, and the fixing seat is detachably connected with the connector through a limiting belt.
The connector is convenient to fix in the packaging bag.
Further preferably, the liquid storage bag is connected with one end of the packaging bag.
Alternatively, the packaging bag comprises a first cavity and a second cavity which are adjacently arranged;
the joint is located at the junction of the first cavity and the second cavity.
Or the liquid storage bag is limited and fixed in the packaging bag.
Further preferably, a base is installed in the packaging bag, and the base is connected with the liquid storage bag through a limiting belt.
As a preferred solution, the one-way valve is a cross-shaped silicone valve.
When the joint is inserted into the one-way valve, the diaphragm opening of the one-way valve is opened, and liquid conduction is realized.
As another preferable scheme, the one-way valve comprises a valve body and a valve clack, wherein the valve clack is connected with the valve body through a spring;
the valve body is provided with a sealing surface for propping against the valve clack, and the spring drives the valve clack to prop against the sealing surface;
when the connector is inserted into the valve body, the end of the connector abuts against the valve clack and pushes the valve clack to leave the sealing surface on the valve body.
Further preferably, a hand-held wing is connected between the needle body and the pipeline, and a needle sheath is connected to the pipeline in a sliding manner;
the needle sheath is provided with a strip-shaped notch for sliding into the wing piece of the hand-held wing.
After the puncture is finished, the needle sheath slides along the pipeline to pass through the wing pieces, so that the needle body is protected.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;
FIG. 2 is a schematic structural view of embodiment 2 of the present utility model;
FIG. 3 is a schematic structural view of embodiment 3 of the present utility model;
FIG. 4 is a schematic structural view of a check valve and a connector according to embodiment 5 of the present utility model;
fig. 5 is a schematic partial structure of embodiment 7 of the present utility model.
In the figure: 1 is a liquid storage bag, 2 is a needle body, 3 is a pipeline, 4 is a joint, 5 is a one-way valve, 6 is a packaging bag, 7 is a needle sheath, 61 is a first cavity, 62 is a second cavity, 63 is a fixed seat, and 64 is a base.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1, in embodiment 1, a self-priming internal fistula puncture needle for closed physiological saline comprises a needle assembly, wherein the needle assembly comprises a needle body 2 and a pipeline 3 which are sequentially connected, a packaging bag 6, a liquid storage bag 1 sealed with physiological saline, and a one-way valve 5 for preventing liquid from being discharged is arranged at the end part of the liquid storage bag 1; the end part of the pipeline 3 is detachably connected with a joint 4 which is used for inserting a one-way valve 5 and conducting the liquid storage bag 1 and the pipeline 3; a needle assembly is arranged in the packaging bag 6; the liquid storage bag 1 is connected with the packaging bag 6, the port of the one-way valve 5 is positioned in the packaging bag 6, the joint 4 is fixed in the packaging bag 6 in a limiting mode, and the joint 4 is opposite to the port of the one-way valve 5. The utility model is convenient to realize that the physiological saline can be pre-filled without disassembling the external package by optimizing the structure of the internal fistula puncture needle. When the physiological saline needs to be pre-filled, the joint 4 is inserted into the one-way valve 5 to realize the opening of the one-way valve 5, and then the liquid in the liquid storage bag 1 is led into the pipeline 3 and the needle body 2, and the pipeline 3 is clamped from the outside of the packaging bag 6 through the pipeline clamp device to realize the clamp for standby.
A fixing seat 63 is arranged in the packaging bag 6, and the fixing seat 63 is detachably connected with the joint 4 through a limiting belt. Facilitating the securement of the connector 4 within the package 6. The fixing seat can be connected with the packaging bag through an adhesive. The liquid storage bag 1 is connected with one end of the packaging bag 6. The spacing strap may be a tie.
Referring to fig. 2, embodiment 2, a self-priming internal fistula puncture needle for closed physiological saline comprises a needle assembly, wherein the needle assembly comprises a needle body 2 and a pipeline 3 which are sequentially connected, a packaging bag 6, a liquid storage bag 1 sealed with physiological saline, and a one-way valve 5 for preventing liquid from being discharged is arranged at the end part of the liquid storage bag 1; the end part of the pipeline 3 is detachably connected with a joint 4 which is used for inserting a one-way valve 5 and conducting the liquid storage bag 1 and the pipeline 3; a needle assembly is arranged in the packaging bag 6; the liquid storage bag 1 is connected with the packaging bag 6, the port of the one-way valve 5 is positioned in the packaging bag 6, the joint 4 is fixed in the packaging bag 6 in a limiting mode, and the joint 4 is opposite to the port of the one-way valve 5. The utility model is convenient to realize that the physiological saline can be pre-filled without disassembling the external package by optimizing the structure of the internal fistula puncture needle. When the physiological saline needs to be pre-filled, the joint 4 is inserted into the one-way valve 5 to realize the opening of the one-way valve 5, and then the liquid in the liquid storage bag 1 is led into the pipeline 3 and the needle body 2, and the pipeline 3 is clamped from the outside of the packaging bag 6 through the pipeline clamp device to realize the clamp for standby.
The package 6 includes a first cavity 61 and a second cavity 62 disposed adjacent to each other; the joint 4 is located at the junction of the first chamber 61 and the second chamber 62.
Referring to fig. 3, embodiment 3, on the basis of embodiment 1 or 2, the reservoir 1 is fixed in the package 6 in a limited manner. The liquid storage bag is connected with the packaging bag through an adhesive. A base 64 can be arranged in the packaging bag 6, and the base 64 is connected with the liquid storage bag 1 through a limit belt. The base may be attached to the package by an adhesive.
Embodiment 4 the one-way valve is a cross-shaped silicone valve based on embodiment 1, 2 or 3. When the joint is inserted into the one-way valve, the diaphragm opening of the one-way valve is opened, and liquid conduction is realized.
Referring to fig. 4, embodiment 5, the one-way valve 5 includes a valve body and a valve flap, the valve flap being connected to the valve body by a spring, on the basis of embodiment 1, 2 or 3; the valve body is provided with a sealing surface for propping against the valve clack, and the spring drives the valve clack to prop against the sealing surface; when the fitting 4 is inserted into the valve body, the end of the fitting 4 abuts the valve flap and pushes the valve flap away from the sealing surface on the valve body.
Embodiment 6, wherein scale marks are provided on the pipeline on the basis of embodiment 1, 2 or 3. The distance between the arterial needle and the venous needle is avoided, and the distance between the arterial needle and the venous needle is controlled to be a safe distance.
Referring to fig. 5, embodiment 7, on the basis of embodiment 1, 2 or 3, a hand-held wing is connected between the needle body and the pipeline, and the pipeline is slidably connected with a needle sheath 7; the needle sheath 7 is provided with a strip-shaped notch for sliding into the wing piece of the hand-held wing. After the puncture is finished, the needle sheath slides along the pipeline to pass through the wing pieces, so that the needle body is protected.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. The self-prefilled internal fistula puncture needle is characterized by also comprising a liquid storage bag sealed with normal saline, wherein a one-way valve for preventing liquid from being discharged is arranged at the end part of the liquid storage bag;
the end part of the pipeline is detachably connected with a joint which is used for being inserted into the one-way valve and conducting the liquid storage bag and the pipeline;
the needle assembly is arranged in the packaging bag;
the liquid storage bag is connected with the packaging bag, the port of the one-way valve is positioned in the packaging bag, the connector is limited and fixed in the packaging bag, and the connector is opposite to the port of the one-way valve.
2. The closed physiological saline self-priming internal fistula puncture needle of claim 1, wherein: the packaging bag is internally provided with a fixing seat, and the fixing seat is detachably connected with the connector through a limiting belt.
3. The closed physiological saline self-priming internal fistula puncture needle of claim 1, wherein: the liquid storage bag is connected with one end of the packaging bag.
4. The sealed physiological saline self-priming internal fistula puncture needle of claim 3, wherein: the packaging bag comprises a first cavity and a second cavity which are adjacently arranged;
the joint is located at the junction of the first cavity and the second cavity.
5. The closed physiological saline self-priming internal fistula puncture needle of claim 1, wherein: the liquid storage bag is fixed in the packaging bag in a limiting mode.
6. The closed physiological saline self-priming internal fistula puncture needle of claim 1, wherein: the packaging bag is internally provided with a base, and the base is connected with the liquid storage bag through a limit belt.
7. The self-priming internal fistula puncture needle of any one of claims 1-6, wherein: the one-way valve is a cross-shaped silicone valve.
8. The self-priming internal fistula puncture needle of any one of claims 1-6, wherein: the one-way valve comprises a valve body and a valve clack, and the valve clack is connected with the valve body through a spring;
the valve body is provided with a sealing surface for propping against the valve clack, and the spring drives the valve clack to prop against the sealing surface;
when the connector is inserted into the valve body, the end of the connector abuts against the valve clack and pushes the valve clack to leave the sealing surface on the valve body.
9. The self-priming internal fistula puncture needle of any one of claims 1-6, wherein: and scale marks are arranged on the pipeline.
10. The self-priming internal fistula puncture needle of any one of claims 1-6, wherein: a hand-held wing is connected between the needle body and the pipeline, and a needle sheath is connected to the pipeline in a sliding manner;
the needle sheath is provided with a strip-shaped notch for sliding into the wing piece of the hand-held wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320619287.0U CN220236978U (en) | 2023-03-27 | 2023-03-27 | Self-prefilled internal fistula puncture needle for closed physiological saline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320619287.0U CN220236978U (en) | 2023-03-27 | 2023-03-27 | Self-prefilled internal fistula puncture needle for closed physiological saline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220236978U true CN220236978U (en) | 2023-12-26 |
Family
ID=89225917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320619287.0U Active CN220236978U (en) | 2023-03-27 | 2023-03-27 | Self-prefilled internal fistula puncture needle for closed physiological saline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220236978U (en) |
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2023
- 2023-03-27 CN CN202320619287.0U patent/CN220236978U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |