CN213554444U - Improved peripheral venous indwelling needle application - Google Patents
Improved peripheral venous indwelling needle application Download PDFInfo
- Publication number
- CN213554444U CN213554444U CN202022399312.8U CN202022399312U CN213554444U CN 213554444 U CN213554444 U CN 213554444U CN 202022399312 U CN202022399312 U CN 202022399312U CN 213554444 U CN213554444 U CN 213554444U
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- Prior art keywords
- viscidity
- woven fabric
- woven fabrics
- adhesive
- polyurethane film
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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.)
- Expired - Fee Related
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- 230000002093 peripheral effect Effects 0.000 title claims description 16
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 139
- 229920006264 polyurethane film Polymers 0.000 claims abstract description 45
- 239000002674 ointment Substances 0.000 claims abstract description 7
- 239000011505 plaster Substances 0.000 claims abstract description 7
- 210000003462 vein Anatomy 0.000 claims abstract description 5
- 230000006872 improvement Effects 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 82
- 230000001070 adhesive effect Effects 0.000 claims description 79
- 239000004698 Polyethylene Substances 0.000 claims description 16
- -1 polyethylene Polymers 0.000 claims description 16
- 229920000573 polyethylene Polymers 0.000 claims description 16
- 208000015181 infectious disease Diseases 0.000 abstract description 9
- 206010012442 Dermatitis contact Diseases 0.000 abstract description 5
- 208000010247 contact dermatitis Diseases 0.000 abstract description 5
- 239000004519 grease Substances 0.000 abstract description 5
- 210000004243 sweat Anatomy 0.000 abstract description 5
- 229920002635 polyurethane Polymers 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 abstract description 4
- 208000001297 phlebitis Diseases 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract description 2
- 238000001802 infusion Methods 0.000 description 15
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 12
- 229960002897 heparin Drugs 0.000 description 12
- 229920000669 heparin Polymers 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 3
- 210000004209 hair Anatomy 0.000 description 3
- 208000003251 Pruritus Diseases 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 206010073753 Fear of injection Diseases 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000416 hydrocolloid Substances 0.000 description 1
- 238000002642 intravenous therapy Methods 0.000 description 1
- 230000007803 itching Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229940127558 rescue medication Drugs 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an improvement version periphery vein is kept somewhere needle and is applied ointment or plaster, including bottom viscidity non-woven fabrics, the front side of bottom viscidity non-woven fabrics is connected with first viscidity non-woven fabrics, the right side of bottom viscidity non-woven fabrics is connected with second viscidity non-woven fabrics, the right side of second viscidity non-woven fabrics is connected with third viscidity non-woven fabrics, wherein, the front side of third viscidity non-woven fabrics is connected with first polyurethane film. The utility model discloses a set up first viscidity non-woven fabrics, the viscidity of first viscidity non-woven fabrics, second viscidity non-woven fabrics, third viscidity non-woven fabrics, fourth viscidity non-woven fabrics and fifth viscidity non-woven fabrics is stronger than traditional polyurethane membrane viscidity, and has the bleeder vent, patient's skin accessible bleeder vent heat dissipation avoids sweat, the grease stores up to reduce the incidence of contact dermatitis, avoid applying ointment or plaster the turn-up, make the syringe needle fixed more appropriate, the incidence of infection, phlebitis etc. has been reduced.
Description
Technical Field
The utility model relates to an it applies ointment or plaster technical field to keep somewhere the needle, specifically is an improvement version periphery vein is kept somewhere needle and is applied ointment or plaster.
Background
The peripheral venous indwelling needle (an indwelling needle for short) is a venous transfusion tool which is most widely applied clinically at present, the indwelling needle can be indwelling for 72-96 h according to the intravenous therapy practice standard published by the national institutes of health and birth control in 2013, the indwelling needle can be removed according to clinical indications, namely the indwelling needle indwelling time can exceed 96h, the use of the indwelling needle can reduce the pain of a patient caused by repeated venipuncture and the fear of injection, reduce the anxiety, facilitate clinical medication, rescue medication of critical and critical patients and reduce the workload of nurses, so the venous indwelling needle is widely applied clinically, a professional indwelling needle film is required for fixing the indwelling needle, and the venous indwelling needle film is a medical material which is widely applied and has various types, the indwelling needle film can be used for fixing the tail end of the indwelling needle body in a closed manner and keeping the tail part exposed, so that the requirement of clinical indwelling needle infusion is met, and the indwelling needle film is clinically applied in many types at present, and comprises a transparent sterile application formed by coating polyurethane or polyurethane film with acrylic pressure-sensitive adhesive, a medical self-adhesive sterile application formed by non-woven fabric materials, a dressing formed by functional dressings formed by hydrocolloid, viscous materials, artificial elastomers and the like, a foam dressing formed by foaming high polymer materials and mainly comprising polyurethane or silica gel, special biological material products and special products manufactured according to clinical requirements.
Although the types and the number of the existing peripheral venous indwelling needle application are very large, the existing peripheral venous indwelling needle application still has certain problems, and certain inconvenience is brought to the application of the peripheral venous indwelling needle application.
However, most peripheral venous indwelling needles are poor in air permeability in the using process, local skin heat cannot be dissipated outwards, sweat and grease are accumulated, red and swollen and itching are caused at the puncture position, infection or contact dermatitis is caused at the needle head of a patient, the needle head part can only be covered, and parts such as a heparin cap and a positive pressure infusion connector cannot be fixed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improvement version periphery vein is kept somewhere needle and is applied ointment or plaster, has solved periphery vein and has kept somewhere the needle and apply the in-process of using, and most all air permeability is slightly poor, and local skin heat can not outwards be dispersed, causes sweat, grease to store up, causes puncture department red swelling, pruritus to appear, causes patient's syringe needle department to appear infecting or contact dermatitis, influences the problem of result of use.
In order to achieve the above object, the utility model provides a following technical scheme: an improved peripheral venous indwelling needle application comprises a bottom layer adhesive non-woven fabric, wherein the front side of the bottom layer adhesive non-woven fabric is connected with a first adhesive non-woven fabric, the right side of the bottom layer adhesive non-woven fabric is connected with a second adhesive non-woven fabric, the right side of the second adhesive non-woven fabric is connected with a third adhesive non-woven fabric, wherein,
the front side of the third sticky non-woven fabric is connected with a first polyurethane film, one side of the first polyurethane film, which is close to the second sticky non-woven fabric, is provided with a joint of the first polyurethane film and the second sticky non-woven fabric, one side of the first polyurethane film, which is close to the third sticky non-woven fabric, is provided with a joint of the first polyurethane film and the third sticky non-woven fabric, and one side of the first polyurethane film, which is close to the first sticky non-woven fabric, is provided with a joint of the first polyurethane film and the first sticky non-woven fabric;
the right side of first viscidity non-woven fabrics is connected with fourth viscidity non-woven fabrics, set up between fourth viscidity non-woven fabrics and the third viscidity non-woven fabrics and have the vacant part that removes, be connected with magic word card between bottom viscidity non-woven fabrics and the third viscidity non-woven fabrics and paste, the internal connection of magic word card subsides does not take viscidity polyethylene film, be connected with fifth viscidity non-woven fabrics between first viscidity non-woven fabrics and the fourth viscidity non-woven fabrics.
Preferably, the first adhesive non-woven fabric, the second adhesive non-woven fabric, the third adhesive non-woven fabric, the fourth adhesive non-woven fabric and the fifth adhesive non-woven fabric are all provided with air holes.
Preferably, the first polyurethane film is square, and the side length of the first polyurethane film is 45 mm.
Preferably, the length and width of the blanking portion are 15mm and 10mm, respectively.
Preferably, the non-adhesive polyethylene film is colorless and transparent in color.
Preferably, the length and width of the non-adhesive polyethylene film are 40mm and 25mm, respectively.
Preferably, the length and width of the fifth adhesive nonwoven fabric are 30mm and 10mm, respectively.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a set up first viscidity non-woven fabrics, the viscidity of first viscidity non-woven fabrics, second viscidity non-woven fabrics, third viscidity non-woven fabrics, fourth viscidity non-woven fabrics and fifth viscidity non-woven fabrics is stronger than traditional polyurethane membrane viscidity, and has the bleeder vent, patient's skin accessible bleeder vent heat dissipation avoids sweat, the grease stores up to reduce the incidence of contact dermatitis, avoid applying ointment or plaster the turn-up, make the syringe needle fixed more appropriate, the incidence of infection, phlebitis etc. has been reduced.
2. The utility model discloses a sticky polyethylene film is not taken in the setting, needle heparin cap will be kept somewhere, the infusion connector part is placed between second sticky non-woven fabrics and no sticky polyethylene film, clinical nurse then need not adopt aseptic gauze parcel heparin cap or infusion joint department in addition, and use medical adhesive tape or aseptic self-adhesion type wound dressing will be fixed in phase, medical resources has been saved, also avoid the second sticky non-woven fabrics to the damage of the hair of skin when tearing, the incidence of infection has been reduced simultaneously, the swing back and forth of this part has also been avoided, reduce the incidence of pipe slippage, clinical nurse's work load has been reduced, pleasing to the eye demand has also been guaranteed.
3. The utility model discloses a set up empty part of removing, set up empty part of removing between fourth viscidity non-woven fabrics and the third viscidity non-woven fabrics, be convenient for expose the needle handle of third outside, can avoid leading to first polyurethane film unevenness because of fixed needle handle, avoid first polyurethane film perk, be difficult for getting into the air in the first polyurethane film, reduce the infection probability, more properly fix the syringe needle, also guaranteed pleasing to the eye simultaneously.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the top view of the magic copybook;
fig. 3 is a schematic view of the front view structure of the present invention.
In the figure: 1. a bottom layer of adhesive non-woven fabric; 2. a first adhesive nonwoven fabric; 3. a second adhesive nonwoven fabric; 4. a third adhesive nonwoven fabric; 5. a first polyurethane film; 6. the joint of the first polyurethane film and the second adhesive non-woven fabric; 7. the joint of the first polyurethane film and the third adhesive non-woven fabric; 8. the joint of the first polyurethane film and the first adhesive non-woven fabric; 9. a fourth tacky nonwoven fabric; 10. an empty part; 11. magic character sticking; 12. non-adhesive polyethylene film; 13. a fifth tacky nonwoven.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: an improved peripheral venous indwelling needle application comprises a bottom-layer adhesive non-woven fabric 1, a first adhesive non-woven fabric 2, a second adhesive non-woven fabric 3, a third adhesive non-woven fabric 4, a first polyurethane film 5, a joint 6 of the first polyurethane film and the second adhesive non-woven fabric, a joint 7 of the first polyurethane film and the third adhesive non-woven fabric, a joint 8 of the first polyurethane film and the first adhesive non-woven fabric, a fourth adhesive non-woven fabric 9, a blank part 10, a magic character card sticker 11, a non-adhesive polyethylene film 12 and a fifth adhesive non-woven fabric 13, wherein the first adhesive non-woven fabric 2 is connected to the front side of the bottom-layer adhesive non-woven fabric 1, air holes are formed in the first adhesive non-woven fabric 2, the second adhesive non-woven fabric 3, the third adhesive non-woven fabric 4, the fourth adhesive non-woven fabric 9 and the fifth adhesive non-woven fabric 13, and air holes are formed in the first adhesive non, The third adhesive non-woven fabric 4, the fourth adhesive non-woven fabric 9 and the fifth adhesive non-woven fabric 13 have higher viscosity than a traditional polyurethane film, and are provided with air holes, so that the skin of a patient can dissipate heat through the air holes, sweat and grease are prevented from accumulating, the incidence rate of contact dermatitis is reduced, the application curling is avoided, the needle head is fixed more properly, and the incidence rate of infection, phlebitis and the like is reduced, the right side of the bottom adhesive non-woven fabric 1 is connected with the second adhesive non-woven fabric 3, the right side of the second adhesive non-woven fabric 3 is connected with the third adhesive non-woven fabric 4, wherein,
the front side of the third sticky non-woven fabric 4 is connected with a first polyurethane film 5, the first polyurethane film 5 is square, the side length of the first polyurethane film 5 is 45mm, one side, close to the second sticky non-woven fabric 3, of the first polyurethane film 5 is provided with a joint 6 of the first polyurethane film and the second sticky non-woven fabric, one side, close to the third sticky non-woven fabric 4, of the first polyurethane film 5 is provided with a joint 7 of the first polyurethane film and the third sticky non-woven fabric, and one side, close to the first sticky non-woven fabric 2, of the first polyurethane film 5 is provided with a joint 8 of the first polyurethane film and the first sticky non-woven fabric;
the right side of the first adhesive non-woven fabric 2 is connected with a fourth adhesive non-woven fabric 9, a vacant part 10 is arranged between the fourth adhesive non-woven fabric 9 and the third adhesive non-woven fabric 4, the length and the width of the vacant part 10 are respectively 15mm and 10mm, so that one third of needle handles are exposed, unevenness of the first polyurethane film 5 caused by fixing the needle handles can be avoided, the first polyurethane film 5 is prevented from being tilted, air is not easy to enter the first polyurethane film 5, the infection probability is reduced, the needle heads are fixed more properly, the attractiveness is guaranteed, a magic character clamping sticker 11 is connected between the bottom adhesive non-woven fabric 1 and the third adhesive non-woven fabric 4, an adhesive-free polyethylene film 12 is connected inside the magic character clamping sticker 11, the color of the adhesive-free polyethylene film 12 is colorless and transparent, the length and the width of the adhesive-free polyethylene film 12 are respectively 40mm and 25mm, the heparin cap of the indwelling needle and the joint part of the infusion are placed between the second adhesive non-woven fabric 3 and the non-adhesive polyethylene film 12, a clinical nurse does not need to wrap the heparin cap or the infusion joint part with an additional sterile gauze, and medical adhesive tapes or sterile self-adhesive wound dressings are used for fixing the period, so that medical resources are saved, the second adhesive non-woven fabric 3 is prevented from damaging hairs of the skin when being torn, the incidence rate of infection is reduced, the back-and-forth swing of the part is also avoided, the incidence rate of catheter slippage is reduced, the workload of the clinical nurse is reduced, the requirement of attractive appearance is also ensured, the psychological pressure of a patient can be relieved, and if the infusion is carried out, the upper part or the lower part of the magic character sticking 11 can not be jointed, so that the infusion catheter passes through; when not infusing, then can all link to each other magic word card subsides 11 joinable parts, make including heparin cap or infusion connector portion, be connected with fifth viscidity non-woven fabrics 13 between first viscidity non-woven fabrics 2 and the fourth viscidity non-woven fabrics 9, the length and the width of fifth viscidity non-woven fabrics 13 are 30mm and 10mm respectively, are convenient for fix heparin cap, malleation infusion connector and partial pipe, thereby avoid the easy swing back and forth of unfixed part, make the patient cause the pipe slippage at the activity in-process, and clinical nurse can locate to record puncture date, time and puncture nurse's name at fifth viscidity non-woven fabrics 13, and is more directly perceived, convenient.
The working principle is as follows: when the improved version of the peripheral venous indwelling needle application is used, firstly, the application is taken out, after the indwelling needle is successfully punctured, the release paper at the bottom layer is removed, the central part of the first polyurethane film 5 is dropped right above the puncture point, the transparent application is lightly pressed from the puncture point to the periphery, then the release paper parts of the first adhesive non-woven fabric 2 and the third adhesive non-woven fabric 4 are sequentially removed, the tail end of the needle body and the branching part of the extension tube are lightly pinched to ensure that the catheter is tightly attached to the non-adhesive polyethylene film 12, the needle body is sealed, then, the fifth adhesive non-woven fabric 13 is removed, a heparin cap, a positive pressure infusion connector and part of the catheter are placed in the application and are fixed, so that the unfixed part is prevented from swinging back and forth, the catheter slippage of a patient is caused in the moving process, and a clinical nurse can record the puncture date, puncture time and puncture name at the fifth adhesive non-woven fabric 13, the method is convenient and fast, then the magic character card paste 11 is uncovered, the heparin cap of the indwelling needle and the joint part of the infusion are placed between the second adhesive non-woven fabric 3 and the non-adhesive polyethylene film 12, a clinical nurse does not need to wrap the heparin cap or the infusion joint part with additional sterile gauze, and medical adhesive tapes or sterile self-adhesive wound dressings are used for fixing the heparin cap or the infusion joint part, so that medical resources are saved, the second adhesive non-woven fabric 3 is prevented from damaging hair of skin when being torn, the incidence rate of infection is reduced, the back-and-forth swing of the part is also avoided, the incidence rate of catheter slippage is reduced, the workload of the clinical nurse is reduced, the aesthetic requirement is also ensured, the psychological pressure of a patient can be relieved, and if the infusion is carried out, the upper edge part or the lower edge part of the magic character card paste 11 can not be connected, so that the; when the transfusion is not carried out, the connecting parts of the magic character card paste 11 can be connected, so that the heparin cap or the transfusion connector is arranged inside.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an improvement version periphery vein is kept somewhere needle and is applied ointment or plaster, includes bottom layer viscidity non-woven fabrics (1), its characterized in that: the front side of the bottom layer adhesive non-woven fabric (1) is connected with a first adhesive non-woven fabric (2), the right side of the bottom layer adhesive non-woven fabric (1) is connected with a second adhesive non-woven fabric (3), the right side of the second adhesive non-woven fabric (3) is connected with a third adhesive non-woven fabric (4), wherein,
the front side of the third sticky non-woven fabric (4) is connected with a first polyurethane film (5), one side of the first polyurethane film (5) close to the second sticky non-woven fabric (3) is provided with a joint (6) of the first polyurethane film and the second sticky non-woven fabric, one side of the first polyurethane film (5) close to the third sticky non-woven fabric (4) is provided with a joint (7) of the first polyurethane film and the third sticky non-woven fabric, and one side of the first polyurethane film (5) close to the first sticky non-woven fabric (2) is provided with a joint (8) of the first polyurethane film and the first sticky non-woven fabric;
the right side of first viscidity non-woven fabrics (2) is connected with fourth viscidity non-woven fabrics (9), it has except that part (10) to set up between fourth viscidity non-woven fabrics (9) and third viscidity non-woven fabrics (4), be connected with magic word card subsides (11) between bottom viscidity non-woven fabrics (1) and third viscidity non-woven fabrics (4), the internal connection of magic word card subsides (11) does not take viscidity polyethylene film (12), be connected with fifth viscidity non-woven fabrics (13) between first viscidity non-woven fabrics (2) and fourth viscidity non-woven fabrics (9).
2. The improved version of peripheral venous indwelling needle dressing according to claim 1, wherein: the first adhesive non-woven fabric (2), the second adhesive non-woven fabric (3), the third adhesive non-woven fabric (4), the fourth adhesive non-woven fabric (9) and the fifth adhesive non-woven fabric (13) are all provided with air holes.
3. The improved version of peripheral venous indwelling needle dressing according to claim 1, wherein: the first polyurethane film (5) is square, and the side length of the first polyurethane film (5) is 45 mm.
4. The improved version of peripheral venous indwelling needle dressing according to claim 1, wherein: the length and the width of the blank part (10) are respectively 15mm and 10 mm.
5. The improved version of peripheral venous indwelling needle dressing according to claim 1, wherein: the non-adhesive polyethylene film (12) is colorless and transparent in color.
6. The improved version of peripheral venous indwelling needle dressing according to claim 1, wherein: the length and width of the non-adhesive polyethylene film (12) are 40mm and 25mm, respectively.
7. The improved version of peripheral venous indwelling needle dressing according to claim 1, wherein: the length and width of the fifth adhesive nonwoven (13) were 30mm and 10mm, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022399312.8U CN213554444U (en) | 2020-10-26 | 2020-10-26 | Improved peripheral venous indwelling needle application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022399312.8U CN213554444U (en) | 2020-10-26 | 2020-10-26 | Improved peripheral venous indwelling needle application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213554444U true CN213554444U (en) | 2021-06-29 |
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ID=76528921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022399312.8U Expired - Fee Related CN213554444U (en) | 2020-10-26 | 2020-10-26 | Improved peripheral venous indwelling needle application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213554444U (en) |
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2020
- 2020-10-26 CN CN202022399312.8U patent/CN213554444U/en not_active Expired - Fee Related
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Granted publication date: 20210629 |