CN117018347A - Small filter for preventing excessive bubbles from entering vein - Google Patents
Small filter for preventing excessive bubbles from entering vein Download PDFInfo
- Publication number
- CN117018347A CN117018347A CN202311018567.7A CN202311018567A CN117018347A CN 117018347 A CN117018347 A CN 117018347A CN 202311018567 A CN202311018567 A CN 202311018567A CN 117018347 A CN117018347 A CN 117018347A
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- China
- Prior art keywords
- filter
- pipe
- bottom shell
- block
- entering
- 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.)
- Pending
Links
- 210000003462 vein Anatomy 0.000 title claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims description 33
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 4
- 238000001802 infusion Methods 0.000 abstract description 22
- 238000013461 design Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 101150006573 PAN1 gene Proteins 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003978 infusion fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000010836 blood and blood product Substances 0.000 description 1
- 229940125691 blood product Drugs 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (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 discloses a small filter for preventing excessive bubbles from entering veins, which comprises a filter bottom shell, wherein the top end of the filter bottom shell is provided with a sealing piece for sealing the top end of the filter bottom shell, the middle part of the filter bottom shell is horizontally and symmetrically provided with an input pipe for liquid inlet and an output pipe for liquid discharge, one ends of the input pipe and the output pipe, which are far away from the filter bottom shell, are respectively sleeved with a connecting piece, the inside of the filter bottom shell is provided with a filter piece for filtering air in the liquid, the filter piece comprises a placing plate, and the middle part of the placing plate is provided with a filter screen in an penetrating way. The invention designs a vein filter, wherein a filter piece for filtering air in liquid is arranged in a filter bottom shell, one ends of an input pipe and an output pipe, which are far away from the filter bottom shell, are respectively sleeved with a connecting piece, the filter is arranged at an infusion connection position close to a vein opening of a patient by using the connecting pieces, and the filter is arranged and connected with various liquids to filter air when entering the patient, so that the patient is ensured to carry out safe infusion.
Description
Technical Field
The invention relates to the field of infusion filtering equipment, in particular to a small filter for preventing excessive bubbles from entering veins.
Background
The patient enters the operating room and needs the normal open vein, so that transfusion or blood products are convenient to carry out, and because the three-way connecting pipe needs to be connected during transfusion, the three-way rotation of the three-way connecting pipe often causes the air to enter the vein pipeline, and the port of the transfusion bag can cause that a large section of air enters the vein pipeline due to the fact that liquid is dripped, and the air enters a human body along with the transfusion to cause adverse reaction, and the life can be endangered in serious cases, so that the air is prevented from entering the vein in the transfusion process, and the life safety of the patient is ensured.
Disclosure of Invention
The present invention is directed to a small filter for preventing excessive air bubbles from entering veins, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a small-size filter that prevents too much bubble entering vein, includes the filtration drain pan, the top of filtering the drain pan is provided with and is used for its top confined closure, the middle part horizontal symmetry of filtering the drain pan is provided with the input tube that is used for the feed liquor and is used for flowing back output tube, the one end that filters the drain pan is kept away from to input tube and output tube all overlaps and is equipped with the connecting piece, the inside of filtering the drain pan is provided with the filter element that is used for liquid internal air filtration, the filter element is including placing the board, the middle part interlude of placing the board is provided with the filter screen.
Preferably, the middle part at filter drain pan top has seted up the filter chamber, inlet port and flowing back hole have been seted up to the middle part horizontal center symmetry in filter chamber, the input tube alternates and sets up in inlet port department, the output tube alternates and sets up in flowing back hole department, place the vertical setting of board in the middle part of filter chamber, the bottom of closure piece alternates and sets up at the top of filter chamber.
Preferably, the one end that the input tube kept away from the filtration drain pan is provided with first penetrating pipe, the one end that the output tube kept away from the filtration drain pan is provided with the second penetrating pipe.
Preferably, the connecting piece comprises a connecting pipe, a connecting groove is formed in one side of the connecting pipe, a penetrating hole is formed in the middle of the connecting groove, the connecting pipe is sleeved on the outer walls of the input pipe and the output pipe through the penetrating hole, and the side wall of the connecting groove is circumferentially provided with extrusion.
Preferably, the extrusion piece comprises an arc extrusion plate, a plurality of storage grooves for storage are formed in the side wall of the connecting groove in a surrounding mode, the two ends of the arc extrusion plate are fixed with the inner wall of the storage groove, and an elastic jacking block is arranged between one side of the arc extrusion plate opposite to the storage groove.
Preferably, the elastic supporting block is arranged in an elliptical shape, and the elastic supporting block is arranged in the middle of the inner arc wall of the arc extrusion plate.
Preferably, an opening is formed in the middle of the placement plate, a through groove for accommodating is formed in the inner wall of the top end of the opening, and the filter screen penetrates through the through groove to be arranged at the opening in an penetrating mode.
Preferably, the sealing piece comprises a sealing block, the sealing block is arranged at the top end of the filtering bottom shell, a sealing block is arranged in the middle of the bottom end of the sealing block, and the sealing block is arranged at the top of the filtering cavity in a penetrating mode.
Preferably, a bayonet is formed in the middle of the bottom end of the plugging block, and the plugging block is sleeved at the top of the placing plate through the bayonet.
Preferably, the bottom of the sealing block is fixedly connected with a plurality of connecting inserting rods around the sealing block, a plurality of connecting slots are formed around the top end of the filtering bottom shell, and a plurality of connecting inserting rods are respectively connected with the plurality of connecting slots in a sliding and penetrating mode.
The invention has the technical effects and advantages that:
the invention designs a vein filter, which is characterized in that a filter piece for filtering air in liquid is arranged in a filter bottom shell, a connecting piece is sleeved at one end of an input pipe and one end of an output pipe, which are far away from the filter bottom shell, and the filter is arranged at an infusion connection position close to a vein opening of a patient by using the connecting piece.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a cross-sectional view showing the structural connection of the filter housing, the closure member and the filter member according to the present invention.
Fig. 3 is a schematic view showing structural connection of the filter bottom case and the filter element according to the present invention.
Fig. 4 is a schematic view of the structure of the closure of the present invention.
Fig. 5 is a cross-sectional view of the structure of the connector of the present invention.
Fig. 6 is an enlarged schematic view of the structure of fig. 5 a according to the present invention.
In the figure: 1. a filtering bottom shell; 101. a liquid inlet hole; 102. a liquid discharge hole; 103. a filter chamber; 104. a connection slot; 2. an input tube; 201. a first penetrating cannula; 3. an output pipe; 301. a second cannula; 4. a connecting pipe; 401. a connecting groove; 402. penetrating the jack; 403. a storage groove; 404. an arc extrusion plate; 405. an elastic supporting block; 5. a closing block; 501. a block; 502. a bayonet; 503. connecting the inserted link; 6. placing a plate; 601. an opening; 602. and (3) a filter screen.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a small filter for preventing excessive bubbles from entering veins, which is shown in fig. 1-6, and comprises a filter bottom shell 1, wherein a sealing piece for sealing the top end of the filter bottom shell 1 is arranged at the top end of the filter bottom shell, an input pipe 2 for liquid feeding and an output pipe 3 for liquid discharging are horizontally and symmetrically arranged in the middle of the filter bottom shell 1, and connecting pieces are sleeved at one ends of the input pipe 2 and the output pipe 3, which are far away from the filter bottom shell 1.
It should be noted that, when the whole filter is connected and used, the input tube 2 and the output tube 3 are used for being connected at the infusion connection position where the infusion tube is close to the vein opening of the patient, and in the scheme, the input tube 2 and the output tube 3 are conducted with the filter bottom shell 1, so that the connection direction is not considered, and only the conduction connection is needed.
Specifically, the connecting piece includes connecting pipe 4, and connecting groove 401 has been seted up to one side of connecting pipe 4, and perforating hole 402 has been seted up at the middle part of connecting groove 401, and connecting pipe 4 establishes at the outer wall of input tube 2 and output tube 3 through perforating hole 402 cover, and the lateral wall of connecting groove 401 encircles and is provided with the extrusion piece.
It should be noted that, the connecting pipe 4 is fixedly sleeved at the end of the input pipe 2 and the output pipe 3 far away from the filtering bottom shell 1, and is used for connecting the input pipe 2 with the output pipe 3 and the infusion pipe, wherein the inner pipe diameters of the input pipe 2 and the output pipe 3 are the same as those of the infusion pipe, and the diameter of the connecting groove 401 of the connecting pipe 4 is one point three to one point five times of that of the infusion pipe, so that after the infusion pipe is butted with the input pipe 2 and the output pipe 3 in the connecting groove 401, the extrusion clamping restriction is performed by the extrusion piece, and thus, the clamping connection of the infusion pipes with different wall thicknesses can be realized in the connecting groove 401.
In the scheme, the input pipe 2 and the output pipe 3 are made of the same material as the infusion pipe, and are made of medical nontoxic transparent soft polyvinyl chloride plastic or high-performance polyolefin thermoplastic elastomer (TPE) material, and polyvinyl chloride, also called PVC, is an initiator of vinyl chloride monomers in peroxide, azo compounds and the like; or a polymer polymerized by a free radical polymerization reaction mechanism under the action of light and heat. The structure is adopted to ensure that the input pipe 2 and the output pipe 3 have high elasticity, high strength and high rebound resilience, meet medical conditions and ensure the safe circulation of the infusion to be performed. .
Further, the extrusion piece includes arc extrusion plate 404, and a plurality of storage tanks 403 that are used for accomodating have been seted up around the lateral wall of spread groove 401, and the both ends of arc extrusion plate 404 are fixed to practice the level with the inner wall of storage tank 403, are provided with elasticity jack-up piece 405 between the opposite one side of arc extrusion plate 404 and storage tank 403.
It should be noted that, the middle part of arc extrusion plate 404 is arc bulge form, fill in the space of spread groove 401 through this bulge like this, and arc extrusion plate 404 adopts elastic soft board material to prepare, perhaps use rubber material to prepare, through the characteristic of its extrusion deformation like this, when transfer line and input tube 2 and output tube 3 are connected in spread groove 401, elastic resilience through after the arc extrusion plate 404 deformation, backward extrusion is in the butt joint department of transfer line and input tube 2 and output tube 3, press the clamp transfer line in spread groove 401, ensure that transfer line and input tube 2 and output tube 3 remain stable to be connected, be provided with elasticity jack-up piece 405 between the opposite one side of arc extrusion plate 404 and storage groove 403 simultaneously, utilize the deformation compression of elasticity jack-up piece 405 compensation arc extrusion plate 404, unable resilience after avoiding arc extrusion plate 404 deformation, further strengthen transfer line and input tube 2 and output tube 3 and keep stable the connection, avoid the transfer line landing.
Further, the elastic supporting block 405 is provided in an elliptical shape, and the elastic supporting block 405 is provided in the middle of the inner arc wall of the arc extrusion plate 404.
It should be noted that, the elastic supporting block 405 is set to be oval to fill the gap between the opposite sides of the arc extrusion plate 404 and the storage slot 403, so that the elastic supporting block 405 can contact the arc extrusion plate 404 to the greatest extent, so that the arc extrusion plate 404 can be effectively supported, and the elastic supporting block 405 can be made of sponge balls or elastic rubber ball materials, so that the arc extrusion plate 404 can stably complete the extrusion clamping function through the structural collocation of the form.
The inside of filtering drain pan 1 is provided with the filter that is used for the internal air filtration of liquid, and the filter is including placing board 6, and the middle part of placing board 6 alternates and is provided with filter screen 602.
It should be noted that, the filter screen 602 and the placement plate 6 are matched in the filter bottom case 1 to be used as a filter core of the whole filter, the filter core material is consistent with the filter core filter screen in the blood transfusion device, and the filter screen 602 can filter impurities with a diameter larger than 40 μm, so that when the infusion liquid enters the filter bottom case 1, bubbles mixed in the liquid can be scraped and scraped by the blocking of the filter screen 602 when the infusion liquid passes through the filter screen 602, and air is prevented from being mixed in the liquid and being transmitted to the body of a patient.
Specifically, the middle part on filter drain pan 1 top has seted up filter chamber 103, and inlet port 101 and flowing back hole 102 have been seted up to the middle part horizontal center symmetry in filter chamber 103, and input tube 2 alternates the setting in inlet port 101 department, and output tube 3 alternates the setting in flowing back hole 102 department, and place board 6 vertical setting is in the middle part of filter chamber 103, and the bottom of closure alternates the setting at the top of filter chamber 103.
It should be noted that, the liquid inlet hole 101 and the liquid outlet hole 102 are provided with the same size, and have the same size as the inner diameters of the input pipe 2 and the output pipe 3, so that when the liquid to be conveyed flows in and out from the liquid inlet hole 101 and the liquid outlet hole 102, the liquid can stably pass through the input pipe 2 and the output pipe 3 to be conveyed, the placing plate 6 is arranged in the middle to ensure that the inflow and outflow of the liquid are consistent when the input pipe 2 and the output pipe 3 are conducted, and thus, the air can be prevented from being mixed in the liquid again due to the flow velocity difference, the stability of liquid conveying is ensured, and the effectiveness of air filtration is ensured.
Further, a first penetrating pipe 201 is disposed at one end of the input pipe 2 far away from the filter bottom case 1, and a second penetrating pipe 301 is disposed at one end of the output pipe 3 far away from the filter bottom case 1.
It should be noted that, the design of the first penetrating pipe 201 and the second penetrating pipe 301 is convenient for the input pipe 2 and the output pipe 3 to be connected with the infusion pipeline, wherein the outer diameters of the first penetrating pipe 201 and the second penetrating pipe 301 are the same as the inner diameters of the infusion pipeline, so that the input pipe 2 and the output pipe 3 are connected with the infusion pipeline in a conducting manner, the first penetrating pipe 201 and the second penetrating pipe 301 are connected with the connection ends of the input pipe 2 and the output pipe 3 and the infusion pipeline in a penetrating manner, the input pipe 2 and the output pipe 3 can be quickly connected under the guidance of the first penetrating pipe 201 and the second penetrating pipe 301, and meanwhile, after the first penetrating pipe 201 and the second penetrating pipe 301 are connected with the infusion pipeline in a penetrating manner, the connection stability and the sealing performance of the input pipe 2 and the output pipe 3 and the infusion pipeline can be ensured, and the whole infusion process can be smoothly and orderly carried out.
Specifically, an opening 601 is formed in the middle of the placement plate 6, a through groove for accommodating is formed in the inner wall of the top end of the opening 601, and a filter screen 602 penetrates through the through groove and is arranged at the opening 601 in an penetrating mode.
It should be noted that, the opening 601 is used for entering the circulation of the liquid in the filtering bottom shell 1, and the filter screen 602 is just plugged at the opening 601, so that when the liquid wants to pass through the opening 601 for circulation, the liquid needs to pass through the filter screen 602 for filtration, and a placing groove vertically corresponding to the through groove for containing is formed in the inner wall of the bottom end of the opening 601, so that the top and the bottom of the filter screen 602 are placed through the through groove and the placing groove respectively, and the filter screen 602 can be stably arranged at the opening 601 to finish the filtration of the liquid to be infused.
Specifically, the closure piece includes shutoff piece 5, and shutoff piece 5 sets up on the top of filtering drain pan 1, and the middle part of shutoff piece 5 bottom is provided with shutoff piece 501, and shutoff piece 501 alternates the top that sets up at filter chamber 103.
It should be noted that, the plugging block 501 is inserted and arranged at the top of the filter cavity 103, so that a gap at the top of the filter cavity 103 is filled, the shape of the gap is matched with the top of the filter cavity 103, and thus when the plugging block 501 is completely embedded in the filter cavity 103, the outer wall of the plugging block 501 is tightly adhered to the inside of the filter cavity 103, so that the plugging block 501 seals the top of the filter cavity 103, and meanwhile, the connection of the plugging block 5 at the top of the filter bottom shell 1 is enhanced by using the friction force between the plugging block 501 and the top of the filter cavity 103.
Further, a bayonet 502 is formed in the middle of the bottom end of the plugging block 501, and the plugging block 501 is clamped at the top of the placing plate 6 through the bayonet 502.
It should be noted that, the opening shape of the bayonet 502 is matched with the top of the placing plate 6, and meanwhile, after the bayonet 502 is used for placing the clamping sleeve at the top of the placing plate 6, the placing of the placing plate 6 in the filter cavity 103 can be stabilized, so that the placing plate 6 can be stably kept in a vertically placed state to finish operation and use, and when the plugging block 501 is clamped at the top of the placing plate 6 through the bayonet 502, the bottom end of the plugging block 501 and the top end of the opening 601 are at the same horizontal height, and thus, the infusion body to be infused in the filter cavity 103 can be further limited to pass through the filter screen 602 for circulation.
Further, a plurality of connecting inserting rods 503 are fixedly connected to the bottom end of the sealing block 5 and around the sealing block 501, a plurality of connecting slots 104 are formed around the top end of the filter bottom shell 1, and the connecting inserting rods 503 are respectively connected with the connecting slots 104 in a sliding and penetrating manner.
It should be noted that, the connection inserting rod 503 is adapted to the connection slot 104, and through such a combination arrangement, the connection between the sealing block 5 and the filtering bottom shell 1 is realized by a mortise-and-tenon structure, so that the sealing block 5 can be ensured to complete the sealing of the top end of the filtering cavity 103, and the filtering cavity 103 can utilize the filtering net 602 to achieve the purpose of filtering the air in the infusion body.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. The utility model provides a small-size filter that prevents too much bubble entering vein, includes filtering drain pan (1), a serial communication port, the top of filtering drain pan (1) is provided with and is used for its top confined closure, the middle part horizontal symmetry of filtering drain pan (1) is provided with input tube (2) that are used for the feed liquor and is used for flowing back output tube (3), input tube (2) and output tube (3) keep away from the one end of filtering drain pan (1) and all overlap and be equipped with the connecting piece, the inside of filtering drain pan (1) is provided with and is used for the filterable filter of liquid internal air, the filter is including placing board (6), place the middle part interlude of board (6) and be provided with filter screen (602).
2. The small filter for preventing excessive bubbles from entering veins according to claim 1, wherein a filter cavity (103) is formed in the middle of the top end of the filter bottom shell (1), a liquid inlet hole (101) and a liquid discharge hole (102) are formed in the middle of the filter cavity (103) in a horizontal center symmetry mode, an input pipe (2) is arranged at the liquid inlet hole (101) in a penetrating mode, an output pipe (3) is arranged at the liquid discharge hole (102) in a penetrating mode, the placing plate (6) is vertically arranged in the middle of the filter cavity (103), and the bottom of the sealing piece is arranged at the top of the filter cavity (103) in a penetrating mode.
3. A compact venous entry prevention filter according to claim 2, characterized in that the inlet tube (2) is provided with a first puncture tube (201) at the end remote from the filter bottom (1) and the outlet tube (3) is provided with a second puncture tube (301) at the end remote from the filter bottom (1).
4. The small filter for preventing excessive bubbles from entering veins according to claim 1, wherein the connecting piece comprises a connecting pipe (4), a connecting groove (401) is formed in one side of the connecting pipe (4), a penetrating hole (402) is formed in the middle of the connecting groove (401), the connecting pipe (4) is sleeved on the outer walls of an input pipe (2) and an output pipe (3) through the penetrating hole (402), and an extrusion part is arranged on the side wall of the connecting groove (401) in a surrounding mode.
5. The small filter for preventing excessive bubbles from entering veins according to claim 4, wherein the extrusion piece comprises an arc extrusion plate (404), a plurality of accommodating grooves (403) for accommodating are formed around the side wall of the connecting groove (401), two ends of the arc extrusion plate (404) are fixed with the inner wall of the accommodating groove (403), and an elastic jacking block (405) is arranged between one side of the arc extrusion plate (404) opposite to the accommodating groove (403).
6. A compact, venous entry prevention filter as claimed in claim 5, characterised in that the resilient jacking block (405) is provided in the form of an oval and that the resilient jacking block (405) is provided in the middle of the inner arc wall of the arc-shaped compression plate (404).
7. The small filter for preventing excessive bubbles from entering veins according to claim 1, wherein an opening (601) is formed in the middle of the placement plate (6), a through groove for containing is formed in the inner wall of the top end of the opening (601), and the filter screen (602) penetrates through the through groove and is arranged at the opening (601) in a penetrating manner.
8. A compact venous entry prevention filter according to claim 2, characterized in that the closure comprises a closure block (5), the closure block (5) being arranged at the top end of the filter bottom shell (1), the middle part of the bottom end of the closure block (5) being provided with a closure block (501), the closure block (501) being arranged at the top of the filter cavity (103) in a penetrating manner.
9. A compact venous entry prevention filter according to claim 8, characterised in that the middle of the bottom end of the block (501) is provided with a bayonet (502) and the block (501) is clipped to the top of the placement plate (6) by means of the bayonet (502).
10. The small filter for preventing excessive bubbles from entering veins according to claim 8, wherein a plurality of connecting inserting rods (503) are fixedly connected to the bottom end of the sealing block (5) and surround the sealing block (501), a plurality of connecting slots (104) are formed around the top end of the filter bottom shell (1), and a plurality of connecting inserting rods (503) are respectively connected with the plurality of connecting slots (104) in a sliding penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311018567.7A CN117018347A (en) | 2023-08-14 | 2023-08-14 | Small filter for preventing excessive bubbles from entering vein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311018567.7A CN117018347A (en) | 2023-08-14 | 2023-08-14 | Small filter for preventing excessive bubbles from entering vein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117018347A true CN117018347A (en) | 2023-11-10 |
Family
ID=88638667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311018567.7A Pending CN117018347A (en) | 2023-08-14 | 2023-08-14 | Small filter for preventing excessive bubbles from entering vein |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117018347A (en) |
-
2023
- 2023-08-14 CN CN202311018567.7A patent/CN117018347A/en active Pending
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