CN112704799B - Femoral artery perfusion device for medical cardiac surgery - Google Patents
Femoral artery perfusion device for medical cardiac surgery Download PDFInfo
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- CN112704799B CN112704799B CN202011532394.7A CN202011532394A CN112704799B CN 112704799 B CN112704799 B CN 112704799B CN 202011532394 A CN202011532394 A CN 202011532394A CN 112704799 B CN112704799 B CN 112704799B
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- 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
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- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3337—Controlling, regulating pressure or flow by means of a valve by-passing a pump
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
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- 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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the field of medical treatment, and particularly discloses a femoral artery perfusion device for medical cardiac surgery, which comprises a tube body, wherein the tube body comprises a head with a blind end, and a small diversion hole and a large diversion hole which are respectively opened at the two sides of the head are formed on the outer wall of the head; the device also includes a flow regulator; the flow regulator comprises a main shell, the main shell is connected to the outer wall of the head and covers the small flow guide hole, a through hole I is formed in the main shell and connected with a regulating sheet and a driving mechanism, the through hole I is communicated with the small flow guide hole, and the regulating sheet is movably connected to the main shell and is opened or closed under the driving of the driving mechanism. The invention can regulate the perfusion flow rate of the remote blood supply within a certain range.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to a femoral artery perfusion device for medical cardiac surgery.
Background
At present, when a large cardiac vessel direct-view operation or an in-vitro life support is clinically performed, a femoral artery perfusion cannula is often required to be firstly performed, and then an in-vitro circulation or in-vitro life support system is established. The existing femoral artery perfusion cannula has various structures, and a patent CN 206167589U discloses a bidirectional perfusion artery cannula for extracorporeal circulation, which comprises a tube body, wherein the tube body comprises a tube body head with a blind end, a tube body front part, a tube body middle part and a tube body tail part with a joint combined at the tail end, small flow guide holes and large flow guide holes which are respectively opened at symmetrical positions at two sides of the tube body head part are formed on the outer wall of the tube body head part, and the artery cannula can simultaneously carry out bidirectional blood supply of arteries to prevent ischemia and anoxia at the far end of the cannula part; however, when the femoral artery perfusion cannula is used, the perfusion flow rate of the distal blood supply can only be adjusted together with the perfusion flow rate of the proximal blood supply, but cannot be adjusted independently within a certain range, and the condition of insufficient distal perfusion or excessive perfusion is easily caused.
Disclosure of Invention
The invention aims to provide a femoral artery perfusion device for medical cardiac surgery, which can adjust perfusion flow rate of distal blood supply within a certain range.
In order to achieve the purpose, the invention provides the following technical scheme: a femoral artery perfusion device for medical cardiac surgery comprises a tube body, wherein the tube body comprises a head with a blind end, and a small diversion hole and a large diversion hole which are respectively opened at two sides of the head are formed on the outer wall of the head; the device also includes a flow regulator; the flow regulator comprises a main shell, the main shell is connected to the outer wall of the head and covers the small flow guide hole, a through hole I is formed in the main shell and connected with a regulating sheet and a driving mechanism, the through hole I is communicated with the small flow guide hole, and the regulating sheet is movably connected to the main shell and is opened or closed under the driving of the driving mechanism.
Preferably, the driving mechanism comprises a driving ring, a through hole II is formed in the driving ring, the axis of the through hole II is overlapped with the axis of the through hole I, and the plurality of adjusting blades are uniformly distributed between the driving ring and the through hole I along the circumference; the driving ring is provided with a plurality of guide grooves which are uniformly distributed on the circumference, and the guide grooves are arc-shaped and are bent in the same direction along the circumferential direction; the number of the adjusting sheets is the same as that of the guide grooves, the middle part of each adjusting sheet is hinged in the corresponding guide groove, the outer end of each adjusting sheet is hinged in the main shell, the inner end of each adjusting sheet extends inwards at the same time, the inner ends of the adjusting sheets surround a through hole III together, and the axis of the through hole III is superposed with that of the through hole I; the driving ring drives the adjusting sheet to rotate while rotating directionally, and the through hole III is gradually reduced and closed.
Preferably, the main housing is of a circular ring structure.
Preferably, the drive ring is of annular configuration.
Preferably, the outer end of the adjusting sheet is provided with a first hinged column, and the main shell is provided with a connecting hole which is matched with the first hinged column to form a single-degree-of-freedom rotating connecting structure.
Preferably, the middle part of the adjusting sheet is provided with a second hinge column which is used for being matched and connected with the guide groove.
Preferably, the driving mechanism further comprises a driving rod, and the axis of the driving rod is perpendicular to the axis of the through hole II; the outer surface of the driving rod and the outer edge of the driving ring are both provided with outer teeth, and the outer teeth of the driving rod and the outer teeth of the driving ring are matched to form a worm and gear transmission structure.
Preferably, be equipped with two mount pads that are used for installing the actuating lever on the main casing body, two the mount pad rotates with the upper end and the lower extreme of actuating lever respectively and is connected, just the upper end of actuating lever stretches out behind the mount pad and a connecting rod fixed connection, connecting rod and the coaxial setting of actuating lever.
Preferably, the pipe body is connected with a protection pipe which is coaxial with the connecting rod, and the protection pipe is sleeved outside the connecting rod.
Preferably, a set screw is provided in the radial direction of the protective tube, the set screw penetrating into the protective tube via a thread pair and being capable of pressing the connecting rod.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a femoral artery perfusion device for medical cardiac surgery, which creatively contributes to the arrangement of a flow regulator, and the blood flow flowing through a small flow guide hole can be regulated within a certain range by adding the flow regulator, so that the perfusion flow of the blood supplied from the far end is regulated; particularly, the adjusting sheet can be moved through the driving mechanism, so that the through hole I has different flow cross sections, the flow blocking effect on the small flow guide holes is different, and the blood flow volume of the small flow guide holes is adjusted.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a flow regulator of the present invention;
FIG. 3 is a schematic structural diagram of the main housing of the present invention;
FIG. 4 is a schematic structural view of the drive ring of the present invention;
fig. 5 is a schematic structural diagram of the regulating sheet of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present embodiment provides a femoral artery perfusion device for medical cardiac surgery, including a tube body 1, where the tube body 1 includes a head 2 having a blind end, and a small diversion hole 2a and a large diversion hole 2b that are respectively opened at two sides of the head 2 are formed on an outer wall of the head 2;
the tube body 1 can be, for example, of the structure shown in patent CN 206167589U, with a small tapping hole 2a for distal irrigation and a large tapping hole 2b for proximal irrigation.
The main improvement of the femoral artery perfusion device for medical cardiac surgery provided by the embodiment is that the device further comprises a flow regulator 3; the flow regulator 3 comprises a main shell 31, the main shell 31 is connected to the outer wall of the head 2 and covers the small diversion hole 2a, a through hole I31 a is formed in the main shell 31 and connected with a regulating sheet 32 and a driving mechanism, the through hole I31 a is communicated with the small diversion hole 2a, and the regulating sheet 32 is movably connected to the main shell 31 and driven by the driving mechanism to open or close the through hole I31 a.
The main shell 31 can be in a circular ring structure, and the through hole I31 a and the main shell 31 are arranged concentrically; the main shell 31 is fixedly connected to the outer wall of the head 2, and the through hole I31 a and the small diversion hole 2a are coaxially arranged; the adjusting sheet 32 can be moved by the driving mechanism, so that the through hole I31 a has different flow cross sections, the flow blocking effect formed on the small guide hole 2a is different, and the blood flow volume of the small guide hole 2a is adjusted.
Specifically, the driving mechanism comprises a driving ring 33, a through hole II 33a is arranged in the driving ring 33, the axis of the through hole II 33a is coincident with the axis of the through hole I31 a, and a plurality of adjusting sheets 32 are uniformly distributed between the driving ring 33 and the through hole I31 a along the circumference; a plurality of guide grooves 34 which are uniformly distributed on the circumference are arranged on the driving ring 33, and the guide grooves 34 are arc-shaped and are bent in the same direction along the circumferential direction; the number of the adjusting sheets 32 is the same as that of the guide grooves 34, the middle part of each adjusting sheet 32 is hinged in the corresponding guide groove 34, the outer end of each adjusting sheet 32 is hinged in the main shell 31, the inner end of each adjusting sheet 32 extends inwards at the same time, the inner ends of the adjusting sheets 32 surround a through hole III 32a together, and the axis of the through hole III 32a is coincident with the axis of the through hole I31 a; the driving ring 33 rotates directionally and simultaneously drives the adjusting sheet 32 to rotate, and the through hole III 32a is gradually shrunk and closed.
The driving ring 33 can be in a circular ring structure, the through hole II 33a is a circular hole, and the through hole II 33a and the driving ring 33 are arranged concentrically; the through hole III 32a is formed by enclosing the adjusting sheets 32 and is of a structure close to a round hole; the adjusting sheet 32 is of a bent C-shaped structure, and the section of the adjusting sheet is gradually increased from the outer end to the inner end (the end close to the circle center of the through hole III 32 a); the number of the adjusting sheets 32 can be 5-10, and can be determined according to the needs; the adjusting sheets 32 are not completely in the same plane, so as to avoid interference during rotation; the hole sealing structure matched with the adjusting sheet 32 can uniformly adjust the flow; a first hinged column 32b is arranged at the outer end of the adjusting sheet 32, a connecting hole 31b which is matched with the first hinged column 32b to form a single-degree-of-freedom rotating connecting structure is formed in the main shell 31, and the axis of the first hinged column 32b is also used as a rotating shaft of the adjusting sheet 32; the middle of the adjusting plate 32 is provided with a second hinge post 32c to be connected with the guide groove 34 in a matching manner, when the driving ring 33 rotates directionally, the second hinge post 32c slides along the guide groove 34 by being driven by the guide groove 34, so that the adjusting plate 32 rotates integrally, the through hole iii 32a is gradually reduced, and finally the closed state is achieved. To improve the sealing performance of the flow regulator 3, a seal ring may be further provided between the drive ring 33 and the main casing 31.
Specifically, the driving mechanism further comprises a driving rod 35, and the axis of the driving rod 35 is perpendicular to the axis of the through hole II 33 a; the outer surface of the driving rod 35 and the outer edge of the driving ring 33 are both provided with outer teeth, and the outer teeth of the driving rod 35 and the outer teeth of the driving ring 33 are matched to form a worm and gear transmission structure. The driving rod 35 can rotate around the shaft under the action of external force, and when the driving rod 35 rotates, the driving rod can drive the driving ring 33 to rotate under the action of external teeth; the external teeth of the driving rod 35 and the external teeth of the driving ring 33 are both in a spiral structure, so that a transmission structure similar to a worm gear is formed together, and the driving rod 35 and the driving ring 33 can only drive the driving ring to rotate.
Be equipped with two mount pads 36 that are used for installing actuating lever 35 on main casing 31, two mount pad 36 rotates with the upper end and the lower extreme of actuating lever 35 respectively and is connected, just stretch out behind mount pad 36 with a connecting rod 37 fixed connection the upper end of actuating lever 35, connecting rod 37 and the coaxial setting of actuating lever 35. The connecting rod 37 is a component directly stressed, the driving rod 35 can be driven to synchronously rotate by rotating the connecting rod 37, and the top end of the connecting rod 37 can be provided with an operating handle. When in use, the head 2 of the tube body 1 needs to be placed in a blood vessel, so that the tube body 1 is connected with a protection tube which is coaxial with the connecting rod 37, the protection tube is sleeved outside the connecting rod 37, the protection tube prevents the connecting rod 37 from contacting with the blood vessel wall, and simultaneously, blood leakage accidents are effectively avoided, and the connecting rod 37 can freely rotate in the protection tube; a seal may also be provided within the protective tube. Meanwhile, a positioning screw 38 is arranged along the radial direction of the protection tube, and the positioning screw 38 penetrates through the protection tube through a thread pair and can squeeze the connecting rod 37; a set screw 38 is provided at the upper end of the protective tube, and the connecting rod 37 is locked by the set screw 38, thereby preventing improper rotation of the connecting rod 37, while also locking the position of the drive ring 33, i.e., the size of the through-hole iii 32a is fixed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A femoral artery perfusion device for medical cardiac surgery comprises a tube body, wherein the tube body comprises a head with a blind end, and a small diversion hole and a large diversion hole which are respectively opened at two sides of the head are formed on the outer wall of the head; the method is characterized in that: the device also includes a flow regulator; the flow regulator comprises a main shell, the main shell is connected to the outer wall of the head and covers the small flow guide hole, a through hole I is formed in the main shell and is connected with an adjusting sheet and a driving mechanism, the through hole I is communicated with the small flow guide hole, and the adjusting sheet is movably connected to the main shell and is driven by the driving mechanism to open or close the through hole I;
the driving mechanism comprises a driving ring, a through hole II is formed in the driving ring, the axis of the through hole II is overlapped with the axis of the through hole I, and a plurality of adjusting blades are uniformly distributed between the driving ring and the through hole I along the circumference; the driving ring is provided with a plurality of guide grooves which are uniformly distributed on the circumference, and the guide grooves are arc-shaped and are bent in the same direction along the circumferential direction; the number of the adjusting sheets is the same as that of the guide grooves, the middle part of each adjusting sheet is hinged in the corresponding guide groove, the outer end of each adjusting sheet is hinged in the main shell, the inner end of each adjusting sheet extends inwards at the same time, the inner ends of the adjusting sheets surround a through hole III together, and the axis of the through hole III is superposed with that of the through hole I; the driving ring drives the adjusting sheet to rotate while rotating directionally, and the through hole III is gradually reduced and closed.
2. The medical femoral artery infusion device for cardiac surgery according to claim 1, wherein: the main shell is of a circular ring structure.
3. The medical femoral artery infusion device for cardiac surgery according to claim 1, wherein: the driving ring is in a circular ring structure.
4. The medical femoral artery infusion device for cardiac surgery according to claim 1, wherein: the outer end of adjustment sheet is equipped with first articulated post, be equipped with on the main casing body and form the connecting hole that single degree of freedom rotated connection structure with the cooperation of first articulated post.
5. The femoral artery infusion device for medical cardiac surgery according to claim 4, wherein: the middle part of adjustment sheet is equipped with the articulated post of second that is used for being connected with the guide way cooperation.
6. The medical femoral artery infusion device for cardiac surgery according to claim 1, wherein: the driving mechanism further comprises a driving rod, and the axis of the driving rod is perpendicular to the axis of the through hole II; the outer surface of the driving rod and the outer edge of the driving ring are both provided with outer teeth, and the outer teeth of the driving rod and the outer teeth of the driving ring are matched to form a worm and gear transmission structure.
7. The medical femoral artery infusion device for cardiac surgery according to claim 6, wherein: be equipped with two mount pads that are used for installing the actuating lever on the main casing body, two the mount pad rotates with the upper end and the lower extreme of actuating lever respectively and is connected, just stretch out the mount pad back with a connecting rod fixed connection in the upper end of actuating lever, connecting rod and the coaxial setting of actuating lever.
8. The medical cardiac surgical femoral artery infusion device of claim 7, wherein: the pipe body is connected with a protection pipe which is coaxial with the connecting rod, and the protection pipe is sleeved outside the connecting rod.
9. The medical cardiac surgical femoral artery infusion device of claim 8, wherein: and a positioning screw is arranged along the radial direction of the protection tube, penetrates into the protection tube through a thread pair and can squeeze the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011532394.7A CN112704799B (en) | 2020-12-22 | 2020-12-22 | Femoral artery perfusion device for medical cardiac surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011532394.7A CN112704799B (en) | 2020-12-22 | 2020-12-22 | Femoral artery perfusion device for medical cardiac surgery |
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| Publication Number | Publication Date |
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| CN112704799A CN112704799A (en) | 2021-04-27 |
| CN112704799B true CN112704799B (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011532394.7A Active CN112704799B (en) | 2020-12-22 | 2020-12-22 | Femoral artery perfusion device for medical cardiac surgery |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204815310U (en) * | 2015-08-06 | 2015-12-02 | 中国医科大学附属第一医院 | From blocking two -way blood supply aorta intubate |
| CN206167589U (en) * | 2016-07-12 | 2017-05-17 | 魏民新 | Extracorporal circulatory system is with two -way artery intubate of filling |
| CN206830827U (en) * | 2017-05-16 | 2018-01-02 | 宁波田湖阀门科技有限公司 | Aperture-type flow control valve |
| CN110809481A (en) * | 2017-06-28 | 2020-02-18 | 费森尤斯医疗护理德国有限责任公司 | Another insert for a blood tubing set to facilitate mixing of an infusion solution with other fluids |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030236496A1 (en) * | 1999-08-03 | 2003-12-25 | Samson Wilfred J. | Aortic catheter with porous aortic arch balloon and methods for selective aortic perfusion |
| KR20160103474A (en) * | 2015-02-24 | 2016-09-01 | 사회복지법인 삼성생명공익재단 | Femoral arterial Cannula capable of guidance of bidirectional flow |
-
2020
- 2020-12-22 CN CN202011532394.7A patent/CN112704799B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204815310U (en) * | 2015-08-06 | 2015-12-02 | 中国医科大学附属第一医院 | From blocking two -way blood supply aorta intubate |
| CN206167589U (en) * | 2016-07-12 | 2017-05-17 | 魏民新 | Extracorporal circulatory system is with two -way artery intubate of filling |
| CN206830827U (en) * | 2017-05-16 | 2018-01-02 | 宁波田湖阀门科技有限公司 | Aperture-type flow control valve |
| CN110809481A (en) * | 2017-06-28 | 2020-02-18 | 费森尤斯医疗护理德国有限责任公司 | Another insert for a blood tubing set to facilitate mixing of an infusion solution with other fluids |
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| CN112704799A (en) | 2021-04-27 |
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Effective date of registration: 20220826 Address after: 322000 Room 405, floor 4, No. 9, building 2, Huangyuan new village, Jiangbin community, Houcheng street, Yiwu City, Jinhua City, Zhejiang Province Applicant after: Yiwu Hongbo Machinery Technology Co.,Ltd. Address before: 100037 Beijing City, Xicheng District No. 167 North Applicant before: Cheng Yuanhui |
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