CN115025556B - Filter element and arterial hemostix thereof - Google Patents
Filter element and arterial hemostix thereof Download PDFInfo
- Publication number
- CN115025556B CN115025556B CN202210477029.3A CN202210477029A CN115025556B CN 115025556 B CN115025556 B CN 115025556B CN 202210477029 A CN202210477029 A CN 202210477029A CN 115025556 B CN115025556 B CN 115025556B
- Authority
- CN
- China
- Prior art keywords
- filter element
- section
- sealing plug
- hydrophilic
- needle
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 239000002245 particle Substances 0.000 claims abstract description 36
- 239000008280 blood Substances 0.000 claims abstract description 33
- 210000004369 blood Anatomy 0.000 claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 4
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 14
- 229940063583 high-density polyethylene Drugs 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000002405 diagnostic procedure Methods 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- DNEHKUCSURWDGO-UHFFFAOYSA-N aluminum sodium Chemical compound [Na].[Al] DNEHKUCSURWDGO-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150755—Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/003—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention belongs to the technical field of medical appliances, and particularly relates to a filter element and an arterial hemostix thereof, wherein the filter element comprises a sealing section and a water absorption section; the closed section is a cylinder made of expanded particles arranged in gaps among plastic particles uniformly distributed, and the hydrophilic section is a cylinder with ventilation gaps, which is sintered by hydrophilic powder; the arterial hemostix comprises a filter element, a needle cylinder, a needle head arranged at one end of the needle cylinder, a sealing plug sliding in the needle cylinder, and a needle rod driving the sealing plug to slide and extend out of the needle cylinder, wherein the filter element is arranged on the sealing plug, the hydrophilic section has good water permeability, so that the arterial hemostix is convenient to absorb moisture in blood into the sealing section when taking blood, the sealing section absorbs the moisture in the blood, and the sealing section has high moisture absorption capacity and good expansion sealing effect, and is suitable for the arterial hemostix.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a filter element and an arterial hemostix manufactured by using the same.
Background
The filter element is sealed when meeting water, and the English name self-sealing filter is a porous breathable filter material formed by sintering plastic powder, such as UHMW-PE (ultra-high molecular weight polyethylene ), HDPE (high density polyethylene, highDensity Polyethylene) and other sealing agents. The blocking agent is typically a polymeric elastomer which does not swell in the dry state and gas can pass through the filter element through the vent. When meeting water, the macromolecule elastomer expands, which blocks the air holes, prevents the solution with water (such as blood) from passing through the filter element, and prevents the outside air from passing through the air holes.
Arterial hemostix is mainly used for collecting and primarily preserving arterial blood samples for in vitro diagnostic tests. The arterial hemostix generally comprises a needle head and a blood reservoir connected with the needle head, wherein one end of the blood reservoir far away from the needle head is provided with a through hole, and a water-sealing filter element is arranged in the through hole. When the artery of a human or animal is punctured with a needle, arterial blood is flushed from the needle into the reservoir. When arterial blood goes up to the water-meeting sealing filter element, the macromolecule elastomer in the water-meeting sealing filter element expands to block the air holes, so that blood cannot pass through the air holes, and meanwhile, external air cannot pass through the air holes, namely, external gas molecules cannot exchange with gas molecules dissolved into the blood, thereby achieving the purpose of collecting and primarily storing arterial blood samples for in-vitro diagnostic tests.
The existing water-contacting closed filter element is a water-contacting expansion filter element. Although the permeable pores can be blocked quickly, as the water of the blood at the water-contacting closed filter element is absorbed, the blood thickens, and the water is difficult to continuously permeate, so that the water-contacting closed filter element has less water absorption.
Disclosure of Invention
The invention aims to provide a filter element capable of absorbing water and expanding when meeting water and an arterial hemostix manufactured by the filter element.
The invention aims to solve the following problems:
a filter cartridge comprising a closed section and a hydrophilic section connected to the closed section; the closed section is a cylinder made of expanded particles arranged in gaps among plastic particles uniformly distributed, and the hydrophilic section is a cylinder with ventilation gaps, which is sintered by hydrophilic powder; the integral appearance of the filter element formed by the closed section and the hydrophilic section is a cylinder with the same outer diameter; the plastic particles and the adjacent expansion type particles are provided with ventilation gaps, and the surface area of the plastic particles is larger than that of the expansion type particles.
As a further improvement of the technical scheme of the invention, the plastic particles are made of ultra-high molecular weight polyethylene or high density polyethylene.
As a further improvement of the technical scheme of the invention, the expansion type particles are made of high molecular elastomer or water-swelling agent.
As a further improvement of the technical scheme of the invention, the expansion type particles are made of one or a combination of the following materials: water-swellable rubber, water-swellable epoxy material, sodium polyacrylate, polyvinyl alcohol, and hydrophilic polyurethane prepolymer.
As a further improvement of the technical scheme of the invention, the hydrophilic powder is a composition of polyoxyethylene ether or polyvinyl alcohol or polyacrylic acid or polyoxyethylene ether and ultra-high molecular weight polyethylene.
The arterial hemostix comprises a filter element, and further comprises a needle cylinder, a needle head arranged at one end of the needle cylinder, a sealing plug sliding in the needle cylinder and a needle rod driving the sealing plug to slide and extend out of the needle cylinder, wherein the filter element is arranged on the sealing plug.
As a further improvement of the technical scheme of the invention, a through hole is arranged in the middle of the sealing plug, the filter element is arranged in the through hole of the sealing plug, and one end of the needle rod is connected in the through hole of the sealing plug.
As a further improvement of the technical scheme of the invention, the inner wall of the through hole of the sealing plug is sequentially provided with a first diameter expansion part and a second diameter expansion part from top to bottom, the filter element is arranged in the first diameter expansion part of the sealing plug, and the diameter expansion section arranged at one end of the needle rod is arranged in the second diameter expansion part.
As a further improvement of the technical scheme of the invention, the filter element is arranged in the first diameter-expanding part of the sealing plug, and the hydrophilic section of the filter element is far away from one side of the needle rod.
Compared with the prior art, the invention has the outstanding advantages that:
1. the water permeability of the hydrophilic section of this patent filter core is good, and the arterial hemostix of being convenient for is fully leading into the closed section with the moisture in the blood and is absorbed by the closed section when taking a blood, makes the closed section to the moisture absorption volume in the blood big, the inflation sealed effectual of closed section, is applicable to arterial hemostix.
2. The arterial hemostix of this patent is disposable arterial hemostix, sets up the filter core on the sealing plug of disposable arterial hemostix for absorb the moisture in the blood, make the holding time long, it is effectual to guarantee quality, simple structure, low in production cost is applicable to disposable arterial hemostix.
Drawings
FIG. 1 is a schematic diagram of an arterial blood collection device according to the present invention.
Fig. 2 is a partial enlarged view of fig. 1.
Fig. 3 is a schematic structural view of the filter cartridge of the present invention.
Fig. 4 is a schematic perspective view of the filter cartridge of the present invention.
Detailed Description
The invention is further described in the following embodiments with reference to the figures, see fig. 1-4:
a cartridge 100 comprising a closed segment 10 and a hydrophilic segment 20 connected to the closed segment 10; the closed section 10 is a cylinder made of expanded particles 13 arranged in gaps among uniformly distributed plastic particles 11, and the hydrophilic section 20 is a cylinder sintered by hydrophilic powder 21 and provided with ventilation gaps 22; the whole appearance of the filter element 100 formed by the closed section 10 and the hydrophilic section 20 is a cylinder with the same outer diameter; the plastic particles 11 and the adjacent expansion type particles 13 are provided with ventilation gaps 12, the surface area of the plastic particles 11 is larger than that of the expansion type particles 13, and the ventilation gaps 22 of the hydrophilic section 20 and the ventilation gaps 12 between the expansion type particles 13 form the whole ventilation gaps of the filter element 100; the hydrophilic segment 20 is used for increasing the permeability of water, so that water is led into the closing segment 10 and absorbed by the expansion type particles 13 of the closing segment 10, and the air permeable gap 12 of the closing segment 10 is blocked because the expansion type particles 13 absorb water to expand.
As a further improvement of the technical scheme of the invention, the plastic particles 11 are made of ultra-high molecular weight polyethylene or high density polyethylene.
As a further improvement of the technical scheme of the invention, the expansion type particles 13 are made of high molecular elastomer or water-swelling agent.
As a further improvement of the solution of the present invention, the expanded particles 13 are made of one or a combination of the following materials: water-swellable rubber, water-swellable epoxy material, sodium polyacrylate, polyvinyl alcohol, and hydrophilic polyurethane prepolymer.
As a further improvement of the technical scheme of the invention, the hydrophilic powder 21 is made of one or a combination of the following materials: polyvinyl alcohol, polyvinyl acid, polyoxyethylene ether, polyacrylic acid, sodium polyacrylate, ultra-high molecular weight polyethylene, dimethyl silicone oil and sodium aluminum silicate.
The arterial hemostix 200 comprises a filter element 100, a needle 60 arranged at one end of the needle cylinder 40, a sealing plug 50 sliding in the needle cylinder 40, and a needle bar 30 driving the sealing plug 50 to slide and extend out of the needle cylinder 40, wherein the filter element 100 is arranged on the sealing plug 50.
As a further improvement of the technical scheme of the invention, the sealing plug 50 is centrally provided with a through hole 51, the filter element 100 is arranged in the through hole 51 of the sealing plug 50, and one end of the needle bar 30 is connected in the through hole 51 of the sealing plug 50.
As a further improvement of the technical scheme of the present invention, the inner wall of the through hole 51 of the sealing plug 50 is sequentially provided with a first diameter-expanding portion 52 and a second diameter-expanding portion 53 from top to bottom, the filter element 100 is disposed in the first diameter-expanding portion 52 of the sealing plug 50, and the diameter-expanding section 33 disposed at one end of the needle bar 30 is disposed in the second diameter-expanding portion 53.
The needle bar 30 comprises an expanded diameter section 33 arranged at one end of the needle bar 30, a needle bar main body 31 arranged at the lower side of the expanded diameter section 33, and reinforcing ribs 32 arranged on the side wall of the needle bar main body 31.
A circle of convex rings 42 are arranged on the outer wall of one end of the needle cylinder 40 far away from the needle 60, so that the needle cylinder 40 can be supported by hands when the needle bar 30 is pushed and pulled.
As a further improvement of the present invention, the filter element 100 is disposed in the first enlarged diameter portion of the sealing plug 50, and the hydrophilic segment 20 of the filter element 100 is located at a side away from the needle bar 30.
When blood is collected, the sealing plug 50 on the needle bar 30 on the arterial hemostix 200 is positioned at the needle 60 side in the needle cylinder 40, the needle 60 on the needle cylinder 40 is pricked into an arterial blood vessel of a human body or an animal, the needle bar 30 is held at the convex ring 42 of the needle cylinder 40 and is pulled backwards slowly, blood in the arterial blood vessel is sucked into the blood storage cavity 41 between the sealing plug 50 and the needle 60 in the needle cylinder 40 under the action of negative pressure along with the pulling of the needle bar 30, after the blood is collected, moisture in the blood storage cavity 41 of the arterial hemostix 200 sequentially passes through the through hole 51 on the sealing plug 50 and the hydrophilic section 20 of the filter element 100 to enter the sealing section 10, and after the moisture in the blood is absorbed by the expansion particles 13 in the sealing section 10, the moisture in the blood is absorbed by the air permeable gap 12 (micropores) in the sealing section 10, and the moisture in the blood is absorbed by the sealing section 10, and the sealing plug 50 is greatly increased due to the large expansion volume, the central hole on the sealing plug 60 can be stored or transported in a short time, and the hydrophilic blood is soaked in the arterial blood storage cavity 41, after the hydrophilic blood is collected on the sealing section 10, and the hydrophilic particle is arranged on the sealing section 20, and the sealing gap is used for being absorbed by the sealing section 10, and the water permeable gap 12 is filled by the sealing particles is the sealing section 10; the hydrophilic segment 20 of the permeability number of the water is smoothly led into the closed segment 10, so that the water absorbed by the closed segment 10 is large in quantity, the expansion particles 13 absorb more water and expand in volume, and the effect of sealing the ventilation gap 12 of the closed segment 10 is good.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical schemes or technical features described in the foregoing embodiments can be simply replaced or modified in similar technology, and the simple replacement or modification does not make the essence of the corresponding technical schemes deviate from the spirit and the essence of the technical schemes of the embodiments of the present invention, and still is within the protection scope of the present invention.
Claims (9)
1. A filter cartridge, characterized in that: comprises a closed section and a hydrophilic section connected with the closed section; the closed section is a cylinder made of expanded particles arranged in gaps among plastic particles uniformly distributed, and the hydrophilic section is a cylinder with ventilation gaps, which is sintered by hydrophilic powder; the integral appearance of the filter element formed by the closed section and the hydrophilic section is a cylinder with the same outer diameter; the plastic particles and the adjacent expansion type particles are provided with ventilation gaps, and the surface area of the plastic particles is larger than that of the expansion type particles.
2. A filter cartridge as claimed in claim 1, wherein: the plastic particles are made of ultra-high molecular weight polyethylene or high density polyethylene.
3. A filter cartridge as claimed in claim 1, wherein: the expansion type particles are made of high molecular elastomer or water-swelling agent.
4. A filter cartridge as claimed in claim 1, wherein: the expansion type particles are made of one or a combination of the following materials: water-swellable rubber, water-swellable epoxy material, sodium polyacrylate, polyvinyl alcohol, and hydrophilic polyurethane prepolymer.
5. A filter cartridge as claimed in claim 1, wherein: the hydrophilic powder is a composition of polyoxyethylene ether or polyvinyl alcohol or polyacrylic acid or polyoxyethylene ether and ultra-high molecular weight polyethylene.
6. An arterial hemostix, characterized in that: the arterial hemostix comprises a filter element according to any one of claims 1-5, further comprises a syringe, a needle arranged at one end of the syringe, a sealing plug sliding in the syringe, and a needle bar driving the sealing plug to slide and extend out of the syringe, wherein the filter element is arranged on the sealing plug.
7. An arterial blood collection device as claimed in claim 6, wherein: the sealing plug is provided with a through hole in the middle, the filter element is arranged in the through hole of the sealing plug, and one end of the needle rod is connected in the through hole of the sealing plug.
8. An arterial blood collection device as claimed in claim 6, wherein: the inner wall of the through hole of the sealing plug is sequentially provided with a first diameter expansion part and a second diameter expansion part from top to bottom, the filter element is arranged in the first diameter expansion part of the sealing plug, and the diameter expansion section arranged at one end of the needle bar is arranged in the second diameter expansion part.
9. An arterial blood collection device as claimed in claim 6, wherein: the filter element is arranged in the first diameter-expanding part of the sealing plug, and the hydrophilic section of the filter element is far away from one side of the needle bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210477029.3A CN115025556B (en) | 2022-04-20 | 2022-04-20 | Filter element and arterial hemostix thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210477029.3A CN115025556B (en) | 2022-04-20 | 2022-04-20 | Filter element and arterial hemostix thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115025556A CN115025556A (en) | 2022-09-09 |
| CN115025556B true CN115025556B (en) | 2024-01-30 |
Family
ID=83119419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210477029.3A Active CN115025556B (en) | 2022-04-20 | 2022-04-20 | Filter element and arterial hemostix thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115025556B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015238A (en) * | 1989-06-21 | 1991-05-14 | Becton, Dickinson And Company | Expandable obturator and catheter assembly including same |
| US5026354A (en) * | 1990-06-21 | 1991-06-25 | Kocses Joseph W | Safety syringe apparatus |
| JPH0514283U (en) * | 1991-07-31 | 1993-02-23 | 東陶機器株式会社 | Sealing material and drainage pipe connection device for toilet bowl |
| US5736033A (en) * | 1995-12-13 | 1998-04-07 | Coleman; Charles M. | Separator float for blood collection tubes with water swellable material |
| KR100905298B1 (en) * | 2008-12-19 | 2009-07-02 | 이형훈 | Water expansion type sealing device and the water sealing method using the same |
| CN202725204U (en) * | 2012-08-27 | 2013-02-13 | 浙江硕华医用塑料有限公司 | Disposable pipette with core plug |
| CN107859501A (en) * | 2017-12-28 | 2018-03-30 | 河北鸿凯石油科技有限公司 | A kind of self-expanding card seals device |
| CN210330903U (en) * | 2019-03-27 | 2020-04-17 | 成都吉泰医疗器械有限公司 | Drainage device is sealed to compound hydrophilic layer negative pressure |
| CN210644697U (en) * | 2019-05-28 | 2020-06-02 | 厦门天祚医疗科技有限公司 | Negative pressure drainage device |
| CN211066658U (en) * | 2019-11-19 | 2020-07-24 | 杭州市余杭区第一人民医院 | Negative pressure syringe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI248809B (en) * | 2003-08-06 | 2006-02-11 | Hitachi Ltd | Automatic urine disposal device and urine receptacle used therefor |
-
2022
- 2022-04-20 CN CN202210477029.3A patent/CN115025556B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015238A (en) * | 1989-06-21 | 1991-05-14 | Becton, Dickinson And Company | Expandable obturator and catheter assembly including same |
| US5026354A (en) * | 1990-06-21 | 1991-06-25 | Kocses Joseph W | Safety syringe apparatus |
| JPH0514283U (en) * | 1991-07-31 | 1993-02-23 | 東陶機器株式会社 | Sealing material and drainage pipe connection device for toilet bowl |
| US5736033A (en) * | 1995-12-13 | 1998-04-07 | Coleman; Charles M. | Separator float for blood collection tubes with water swellable material |
| KR100905298B1 (en) * | 2008-12-19 | 2009-07-02 | 이형훈 | Water expansion type sealing device and the water sealing method using the same |
| CN202725204U (en) * | 2012-08-27 | 2013-02-13 | 浙江硕华医用塑料有限公司 | Disposable pipette with core plug |
| CN107859501A (en) * | 2017-12-28 | 2018-03-30 | 河北鸿凯石油科技有限公司 | A kind of self-expanding card seals device |
| CN210330903U (en) * | 2019-03-27 | 2020-04-17 | 成都吉泰医疗器械有限公司 | Drainage device is sealed to compound hydrophilic layer negative pressure |
| CN210644697U (en) * | 2019-05-28 | 2020-06-02 | 厦门天祚医疗科技有限公司 | Negative pressure drainage device |
| CN211066658U (en) * | 2019-11-19 | 2020-07-24 | 杭州市余杭区第一人民医院 | Negative pressure syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115025556A (en) | 2022-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4595021A (en) | Blood collector | |
| ES2380063T3 (en) | Blood collection device | |
| CN101309641B (en) | Apparatus for collecting cord blood | |
| CN102215897B (en) | Delivery tube, system, and method for storing liquid from tissue site | |
| CN1736332A (en) | Flashback blood collection needle | |
| CN102238929B (en) | Absorbent medical body, in particular for removing wound fluids from human and/or animal body cavities, and method for its production | |
| US20130270161A1 (en) | Fluid filtering device and method | |
| CN115025556B (en) | Filter element and arterial hemostix thereof | |
| US4657028A (en) | Blood sampling device | |
| JP2003220053A (en) | Blood-gas syringe with improved blood barrier nature | |
| JP3723972B2 (en) | Blood collection needle | |
| JPH0131391B2 (en) | ||
| DE69631767T2 (en) | DRAINAGE UNIT WITH CONTROLLED LOW PRESSURE | |
| CN204246211U (en) | tension pneumothorax first-aid puncture needle | |
| CN208229050U (en) | Amputation stump hemostasis protection dressing under a kind of battlefield surroundings | |
| CN214158136U (en) | Postoperative indwelling imbibition component | |
| CN213251694U (en) | Medical negative pressure drainage bottle | |
| CN218105930U (en) | Intracardiac package puncture drawing liquid device for branch of academic or vocational study | |
| CN112568957B (en) | Reactor for cold compress hemostasis | |
| CN213910891U (en) | High water absorption sanitary towel | |
| CN213158502U (en) | Multilayer multipoint fat filling device | |
| CN216628628U (en) | Nasal cavity hemostasis filler | |
| CN215086199U (en) | Nano microporous filter membrane filtering device | |
| JPH0773605B2 (en) | Priming method of plasma exchanger | |
| CN208229150U (en) | The drainage container of negative pressure can be established rapidly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317200 Room 401, building 18, Hongdi Zhongchuang Industrial Park, Tantou Town, Tiantai County, Taizhou City, Zhejiang Province (self declaration) Patentee after: Zhejiang Wenhao Medical Technology Co.,Ltd. Country or region after: China Address before: Room 401, Building 18, Hongdi Zhongchuang Industrial Park, Tantou Town, Tiantai County, Taizhou City, Zhejiang Province, 317200 Patentee before: Tiantai Wenhao New Material Technology Co.,Ltd. Country or region before: China |