CN113082452B - Femoral artery cannula - Google Patents
Femoral artery cannula Download PDFInfo
- Publication number
- CN113082452B CN113082452B CN202010019922.2A CN202010019922A CN113082452B CN 113082452 B CN113082452 B CN 113082452B CN 202010019922 A CN202010019922 A CN 202010019922A CN 113082452 B CN113082452 B CN 113082452B
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- CN
- China
- Prior art keywords
- elastic sheet
- conduit
- opening
- wall
- catheter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000001105 femoral artery Anatomy 0.000 title claims abstract description 15
- 230000001154 acute effect Effects 0.000 claims abstract description 8
- 239000013013 elastic material Substances 0.000 claims description 3
- 210000003141 lower extremity Anatomy 0.000 abstract description 6
- 210000004204 blood vessel Anatomy 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 101150064138 MAP1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008081 blood perfusion Effects 0.000 description 1
- 238000007675 cardiac surgery Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a femoral artery cannula, which comprises a catheter and a tube core; the head of the conduit is provided with an opening, the edge of the opening is provided with an elastic sheet, the middle part of the elastic sheet is connected with the conduit, the head of the elastic sheet is positioned in the conduit, the head of the elastic sheet is matched with the opening, the tail of the elastic sheet is positioned outside the conduit, the elastic sheet is connected with the edge of the opening, which is close to the tail end of the conduit, when the tube core is inserted into the conduit, the head of the elastic sheet covers the opening, and the tail of the elastic sheet is attached to the outer wall of the conduit; when the tube core is drawn out of the catheter, the angle formed by the tail part of the elastic sheet and the outer wall of the catheter is an acute angle. The invention can fill the femoral artery and the lower limb simultaneously, is convenient to fix and has simple structure.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a femoral artery cannula.
Background
In cardiac surgery, after a traditional femoral artery cannula is inserted, blood flows out from the tail end and is directly perfused upwards along the femoral artery, so that the blood perfusion of lower limbs is almost zero, and the lower limbs are seriously ischemic.
Disclosure of Invention
The invention aims to provide a femoral artery cannula which is convenient to fix and simple in structure, and can be used for filling the femoral artery and the lower limb simultaneously.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the invention discloses a femoral artery cannula, which comprises a catheter and a tube core;
the head of the conduit is provided with an opening, the edge of the opening is provided with a spring plate,
the middle part of the elastic sheet is connected with the conduit, the head part of the elastic sheet is positioned in the conduit, the head part of the elastic sheet is matched with the opening, the tail part of the elastic sheet is positioned outside the conduit, the elastic sheet is connected with the edge of the opening close to the tail end of the conduit,
when the tube core is inserted into the conduit, the head part of the elastic sheet covers the opening, and the tail part of the elastic sheet is attached to the outer wall of the conduit;
when the tube core is drawn out of the catheter, the angle formed by the tail part of the elastic sheet and the outer wall of the catheter is an acute angle.
Preferably, the head of the elastic sheet is in an arc shape with a concave part facing the opening, and the elastic sheet is made of elastic materials.
Preferably, the outer wall of the conduit is provided with a recess which is matched with the tail part of the elastic sheet,
when the tube core is inserted into the conduit, the tail part of the elastic sheet is positioned in the recess, and the thickness of the tail part of the elastic sheet is less than or equal to the depth of the recess.
Preferably, the tail end of the elastic sheet is an arc surface, and the arc surface is protruded towards the direction far away from the conduit.
Preferably, the elastic sheet is connected with the conduit through a pivot, and the ejecting shifting sheet is arranged between the elastic sheet and the conduit.
Preferably, the ejecting poking sheet is arranged on the side wall of the conduit, the angle formed by the ejecting poking sheet and the outer wall of the conduit is larger than the angle formed by the tail part of the elastic sheet and the outer wall of the conduit,
when the tube core is inserted into the catheter, the ejecting poking sheet is extruded by the elastic sheet and falls on the outer wall of the catheter.
Preferably, the ejection paddle is manufactured integrally with the conduit.
Preferably, the inner wall of the conduit is provided with a limiting bulge, so that the angle formed by the elastic sheet and the opening is less than 90 degrees.
Preferably, the elastic sheet and the guide pipe are integrally formed, and the elastic sheet and the side wall of the guide pipe form an acute angle.
Preferably, when the elastic sheet is completely tilted, the distance between the head end of the elastic sheet and the inner wall of the conduit is less than 1/2 of the inner diameter of the conduit.
Preferably, the length of the head of the shrapnel is less than 1/2 of the inner diameter of the conduit.
The invention has the beneficial effects that:
1. the invention perfuses the lower limb while perfusing the femoral artery.
2. The invention is convenient to be fixed in the blood vessel after the tail part of the elastic sheet is tilted.
3. The invention has simple structure and convenient use.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a cross-sectional view of the restraint state at location A of FIG. 1;
FIG. 3 is a cross-sectional view of the release state of portion A of bit map 1;
fig. 4 is an enlarged view of the portion B in fig. 2.
In the figure: 1-conduit, 2-tube core, 3-opening, 4-spring plate, 5-recess, 6-pivot, 7-ejecting poking plate and 8-spacing projection.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
The core 2 is in a constrained state when inserted into the catheter 1 and in a released state when the core 2 is withdrawn from the catheter 1.
As shown in fig. 1 to 4, the present invention comprises a catheter 1, a core 2;
the head of the conduit 1 is provided with an opening 3, the edge of the opening 3 is provided with an elastic sheet 4,
the middle part of the elastic sheet 4 is connected with the conduit 1, the head part of the elastic sheet 4 is positioned in the conduit 1, the head part of the elastic sheet 4 is matched with the opening 3, the tail part of the elastic sheet 4 is positioned outside the conduit 1, the elastic sheet 4 is connected with the edge of the opening 3 close to the tail end of the conduit 1,
when the tube core 2 is inserted into the conduit 1, the head part of the elastic sheet 4 covers the opening 3, and the tail part of the elastic sheet 4 is attached to the outer wall of the conduit 1;
when the tube core 2 is drawn out of the catheter 1, the tail part of the elastic sheet 4 forms an acute angle with the outer wall of the catheter 1.
The head of the elastic sheet 4 is an arc with a recess 5 facing the opening 3, and the elastic sheet 4 is made of elastic material.
The outer wall of the conduit 1 is provided with a dent 5, the dent 5 is matched with the tail part of the elastic sheet 4,
when the tube core 2 is inserted into the catheter 1, the tail part of the elastic sheet 4 is positioned in the recess 5, and the thickness of the tail part of the elastic sheet 4 is less than or equal to the depth of the recess 5.
The tail end of the elastic sheet 4 is a cambered surface, and the cambered surface protrudes towards the direction far away from the conduit 1.
The spring plate 4 is connected with the conduit 1 through a pivot 6, and an ejecting poking sheet 7 is arranged between the spring plate 4 and the conduit 1.
The ejecting poking sheet 7 is arranged on the side wall of the conduit 1, the angle formed by the ejecting poking sheet 7 and the outer wall of the conduit 1 is larger than the angle formed by the tail part of the elastic sheet 4 and the outer wall of the conduit 1,
when the tube core 2 is inserted into the catheter 1, the ejecting and poking sheet 7 is extruded by the elastic sheet 4, and the ejecting and poking sheet 7 falls down on the outer wall of the catheter 1.
The ejection paddle 7 is manufactured integrally with the catheter 1.
The inner wall of the conduit 1 is provided with a limit bulge 8, so that the angle formed by the elastic sheet 4 and the opening 3 is less than 90 degrees.
Meanwhile, the elastic sheet 4 can be integrally formed with the conduit 1, the elastic sheet 4 and the side wall of the conduit 1 form an acute angle, and the rotation of the elastic sheet 4 can be realized through the deformation of the material between the elastic sheet 4 and the conduit 1.
In actual use, the method comprises the following steps:
s100, inserting a tube core 2 into a conduit 1, wherein the outer diameter of the tube core 2 is approximately equal to the inner diameter of the conduit 1, after the tube core 2 is inserted into the conduit 1, the head of an elastic sheet 4 is pressed, the head of the elastic sheet 4 completely covers an opening 3, and as the head of the elastic sheet 4 is arc-shaped, the projection size on the opening 3 is increased when the head of the elastic sheet 4 is further extruded, and the opening 3 is further sealed;
s200, inserting into a blood vessel of a human body, and establishing a perfusion channel;
s300, the tube core 2 is pulled out, the elastic sheet 4 rotates, the opening 3 is in an open state, the tail part of the elastic sheet 4 forms an acute angle with the outer wall of the catheter 1 and can be clamped at a blood vessel,
when perfusion is carried out, part of the perfused blood flows out from the opening 3 and flows to the lower limbs of the human body;
s400, after the infusion is finished, the tube core 2 is inserted into the catheter 1, the elastic sheet 4 is extruded to be flush with the tube wall of the catheter 1, and the tube core is drawn out of the body of a patient.
The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (8)
1. A femoral cannula, characterized by: comprises a catheter (1) and a tube core (2);
an opening (3) is formed in the head of the guide pipe (1), an elastic sheet (4) is arranged on the edge of the opening (3), a recess (5) is formed in the outer wall of the guide pipe (1), and the recess (5) is matched with the tail of the elastic sheet (4);
the middle part of the elastic sheet (4) is connected with the conduit (1), the head part of the elastic sheet (4) is positioned in the conduit (1), the head part of the elastic sheet (4) is matched with the opening (3), the tail part of the elastic sheet (4) is positioned outside the conduit (1), the elastic sheet (4) is connected to the edge of the opening (3) close to the tail end of the conduit (1), the head part of the elastic sheet (4) is in an arc shape with a depression (5) facing the opening (3), and the elastic sheet (4) is made of an elastic material;
when the tube core (2) is inserted into the conduit (1), the head part of the elastic sheet (4) covers the opening (3), and the tail part of the elastic sheet (4) is attached to the outer wall of the conduit (1);
when the tube core (2) is inserted into the catheter (1), the tail part of the elastic sheet (4) is positioned in the recess (5), and the thickness of the tail part of the elastic sheet (4) is less than or equal to the depth of the recess (5);
when the tube core (2) is drawn out of the catheter (1), the angle formed by the tail part of the elastic sheet (4) and the outer wall of the catheter (1) is an acute angle.
2. The femoral cannula of claim 1, wherein: the tail end of the elastic sheet (4) is a cambered surface, and the cambered surface protrudes towards the direction far away from the conduit (1).
3. The femoral cannula of claim 2, wherein: the spring plate (4) is connected with the conduit (1) through a pivot (6), and a popup plectrum (7) is arranged between the spring plate (4) and the conduit (1).
4. The femoral artery cannula of claim 3, wherein: the ejecting poking sheet (7) is arranged on the side wall of the conduit (1), the angle formed by the ejecting poking sheet (7) and the outer wall of the conduit (1) is larger than the angle formed by the tail part of the elastic sheet (4) and the outer wall of the conduit (1),
when the tube core (2) is inserted into the catheter (1), the ejecting and poking sheet (7) is extruded by the elastic sheet (4), and the ejecting and poking sheet (7) falls down on the outer wall of the catheter (1).
5. The femoral artery cannula of claim 4, wherein: the ejecting pick (7) is manufactured integrally with the conduit (1).
6. The femoral artery cannula of any of claims 3-5, wherein: the inner wall of the conduit (1) is provided with a limiting bulge (8) to ensure that the angle formed by the elastic sheet (4) and the opening (3) is less than 90 degrees.
7. The femoral cannula of claim 1, wherein: the elastic sheet (4) and the conduit (1) are integrally formed, and the elastic sheet (4) and the side wall of the conduit (1) form an acute angle.
8. The femoral artery cannula of claim 1, wherein: when the elastic sheet (4) is completely tilted, the distance from the head end of the elastic sheet (4) to the inner wall of the conduit (1) is less than 1/2 of the inner diameter of the conduit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019922.2A CN113082452B (en) | 2020-01-08 | 2020-01-08 | Femoral artery cannula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019922.2A CN113082452B (en) | 2020-01-08 | 2020-01-08 | Femoral artery cannula |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113082452A CN113082452A (en) | 2021-07-09 |
| CN113082452B true CN113082452B (en) | 2023-02-17 |
Family
ID=76663466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010019922.2A Active CN113082452B (en) | 2020-01-08 | 2020-01-08 | Femoral artery cannula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113082452B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN219595415U (en) * | 2023-02-03 | 2023-08-29 | 南京鼓楼医院 | Femoral artery cannula for providing blood perfusion of lower limbs |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171218A (en) * | 1992-01-02 | 1992-12-15 | Trustees Of Boston University | Bidirectional femoral arterial cannula |
| WO2012135904A1 (en) * | 2011-04-05 | 2012-10-11 | Mtmm Pty Ltd | Bi-directional perfusion cannula |
| WO2014021786A1 (en) * | 2012-08-03 | 2014-02-06 | Singapore Health Services Pte Ltd | Arterial cannula which allows perfusion along opposing directions within a cannulated vessel |
| KR20160103474A (en) * | 2015-02-24 | 2016-09-01 | 사회복지법인 삼성생명공익재단 | Femoral arterial Cannula capable of guidance of bidirectional flow |
| KR20190091244A (en) * | 2019-07-26 | 2019-08-05 | 사회복지법인 삼성생명공익재단 | Femoral arterial Cannula capable of guidance of bidirectional flow |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007215864A (en) * | 2006-02-17 | 2007-08-30 | Terumo Corp | Catheter |
| US20150265805A1 (en) * | 2014-02-21 | 2015-09-24 | Ahmad D. Vakili | Catheter with Gills |
| CN106267398B (en) * | 2016-08-29 | 2018-11-20 | 安徽通灵仿生科技有限公司 | A kind of auxiliary circulation two-way arterial duct, control system and its control method |
| EP3576827B1 (en) * | 2017-02-28 | 2022-09-14 | Alexander Koefman | Medical insert |
-
2020
- 2020-01-08 CN CN202010019922.2A patent/CN113082452B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171218A (en) * | 1992-01-02 | 1992-12-15 | Trustees Of Boston University | Bidirectional femoral arterial cannula |
| WO2012135904A1 (en) * | 2011-04-05 | 2012-10-11 | Mtmm Pty Ltd | Bi-directional perfusion cannula |
| WO2014021786A1 (en) * | 2012-08-03 | 2014-02-06 | Singapore Health Services Pte Ltd | Arterial cannula which allows perfusion along opposing directions within a cannulated vessel |
| KR20160103474A (en) * | 2015-02-24 | 2016-09-01 | 사회복지법인 삼성생명공익재단 | Femoral arterial Cannula capable of guidance of bidirectional flow |
| KR20190091244A (en) * | 2019-07-26 | 2019-08-05 | 사회복지법인 삼성생명공익재단 | Femoral arterial Cannula capable of guidance of bidirectional flow |
Non-Patent Citations (2)
| Title |
|---|
| "Double-arterial cannulation:a strategy for whole body perfusion during aortic arch reconstruction";K Michaela;《Interact cardiovasc thorac surg》;20180531;全文 * |
| "大动物动脉插管的改进";计国义;《白求恩医科大学学报》;19910430;第388页 * |
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| Publication number | Publication date |
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| CN113082452A (en) | 2021-07-09 |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210720 Address after: 710000 No. 5, Zone C, venture R & D Park, No. 69, Jinye Road, high tech Zone, Xi'an, Shaanxi Applicant after: XI'AN XIJING MEDICAL APPLIANCE Co.,Ltd. Address before: No. 37, Wuhou District National School Lane, Chengdu, Sichuan Province Applicant before: WEST CHINA HOSPITAL OF SICHUAN University |
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