CN116139354A - Extracorporeal circulation pipeline fixing device - Google Patents

Extracorporeal circulation pipeline fixing device Download PDF

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Publication number
CN116139354A
CN116139354A CN202310411243.3A CN202310411243A CN116139354A CN 116139354 A CN116139354 A CN 116139354A CN 202310411243 A CN202310411243 A CN 202310411243A CN 116139354 A CN116139354 A CN 116139354A
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CN
China
Prior art keywords
clamping
clamping piece
shell
piece
rubber tube
Prior art date
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Granted
Application number
CN202310411243.3A
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Chinese (zh)
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CN116139354B (en
Inventor
陈聪
张魁
董然
曹剑
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Beijing Anzhen Hospital
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Beijing Anzhen Hospital
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Priority to CN202310411243.3A priority Critical patent/CN116139354B/en
Publication of CN116139354A publication Critical patent/CN116139354A/en
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Publication of CN116139354B publication Critical patent/CN116139354B/en
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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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3659—Cannulae pertaining to extracorporeal circulation
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • A61M2025/028—Holding devices, e.g. on the body having a mainly rigid support structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Abstract

The invention discloses an extracorporeal circulation pipeline fixing device, which comprises a shell, a first limiting assembly and a second limiting assembly, wherein the shell is sleeved on the periphery of a rubber tube, and a first clamping part is arranged on the inner side wall of the shell; the first limiting assembly comprises a first clamping piece, the first clamping piece is connected with the inner side wall of the shell, and at least one second clamping part is arranged on the outer side wall of the rubber tube; the second limiting assembly comprises a second clamping piece, and the second clamping piece is connected with the first clamping piece; in the process of establishing extracorporeal circulation, the shell is pushed to move towards the first direction, the first clamping piece is clamped with the second clamping part, the shell is pushed continuously, the shell and the rubber tube are enabled to move towards the first direction synchronously until one end of the rubber tube, which is far away from the shell, is close to a cardiovascular position, and then the second clamping piece is pushed to be clamped with the first clamping part, so that the second clamping piece abuts against the suture line, and the suture line is prevented from moving in the rubber tube.

Description

Extracorporeal circulation pipeline fixing device
Technical Field
The invention relates to the technical field of surgical instruments, in particular to an extracorporeal circulation pipeline fixing device.
Background
The extracorporeal circulation is life support technology for draining the blood of the heart-returning vein to the outside of the body by using a series of special artificial devices, and outputting the blood back to an arterial system in the body after gas exchange, temperature regulation and filtration by an artificial method. The extracorporeal circulation machine is the most important component of the artificial apparatus, and is also called an artificial heart-lung machine.
The heart surgery is an essential operation for establishing an extracorporeal circulation system, in the extracorporeal circulation establishing process, a suture line connected with a heart passes through a rubber tube and extends out of the rubber tube, the suture line extending out of the rubber tube is tensioned by hands, the rubber tube is clamped by a pair of mosquito clamps, the rubber tube is pushed to be close to a cardiovascular position, then the suture line in the rubber tube and the rubber tube is clamped by the pair of mosquito clamps, the pair of mosquito clamps are moved to a pipeline of an extracorporeal circulation machine, and the rubber tube is fixed with the pipeline of the extracorporeal circulation machine by a rope.
However, in the above-mentioned extracorporeal circulation establishing process, the mosquito clamp needs to clamp the suture line in the rubber tube, and the suture line slipping easily occurs in the moving process, so that the heart is bleeding, and the operation risk and operation time are increased.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that in the process of establishing extracorporeal circulation in the prior art, the mosquito clamp is required to clamp the suture line positioned in the rubber tube, and the condition of suture line slipping easily occurs in the moving process, thereby causing heart bleeding and increasing operation risk and operation time.
For this purpose, the invention provides an extracorporeal circulation pipeline fixing device, wherein the extracorporeal circulation pipeline comprises a suture line and a rubber tube, part of the suture line is suitable for suturing the heart, and the rubber tube is sleeved on the periphery of the rest part of the suture line; the fixing device includes:
the shell is sleeved on the periphery of the rubber tube, and a first clamping part is arranged on the inner side wall of the shell;
the first limiting assembly comprises a first clamping piece, the first clamping piece is connected with the inner side wall of the shell, and at least one second clamping part is arranged on the outer side wall of the rubber tube;
the second limiting assembly comprises a second clamping piece, and the second clamping piece is connected with the first clamping piece;
when the shell moves towards a first direction, the first clamping piece can be clamped with the second clamping part;
the second clamping piece is suitable for being clamped with the first clamping part under the action of external force, so that the rubber tube is deformed, and the second clamping piece abuts against the suture line.
Optionally, the above extracorporeal circulation pipeline fixing device, the first limiting component further comprises a damping piece, one end of the damping piece is connected with the inner side wall of the shell, the other end of the damping piece is connected with the first clamping piece, the damping piece has damping force, and the damping force is limited by the first clamping piece.
Optionally, the extracorporeal circuit fixing device, the first limiting assembly further includes:
the rotating shaft is rotationally connected with the inner side wall of the shell, and is fixedly connected with the first clamping piece;
the damping piece is the torsional spring, the torsional spring cover is established the pivot periphery, the one end of torsional spring with first joint spare butt, the torsional spring other end with casing inside wall butt.
Optionally, the extracorporeal circuit fixing device described above,
a pawl is arranged on one side of the first clamping piece, which is close to the second clamping part;
the rubber tube is provided with a plurality of second clamping parts which are uniformly distributed at intervals, the second clamping parts are first bulges, and the first bulges are provided with abutting surfaces and sliding inclined surfaces;
when the shell moves towards the first direction, the pawl can be abutted with the abutting surface and limit the rubber tube;
when the shell moves towards the direction away from the first direction, the pawl can be in sliding connection with the adjacent sliding inclined plane.
Optionally, in the extracorporeal circulation circuit fixing device, the first limiting assembly further includes a handle, one end of the rotating shaft extends out of the housing, the handle is fixedly connected with a portion of the rotating shaft extending out of the housing, and the handle enables the pawl to be separated from the abutting surface.
Optionally, the extracorporeal circuit fixing device, the second limiting assembly further includes:
the deformation piece is provided with a first connecting part, a second connecting part and a third connecting part, and the first connecting part is fixedly connected with the first clamping piece;
one end of the connecting rod is fixedly connected with the second connecting part, and the other end of the connecting rod is fixedly connected with the first clamping piece;
the inner side wall of the shell is provided with a third clamping part, and the deformation piece is elastically deformed, so that the third connecting part is clamped with the third clamping part.
Optionally, the extracorporeal circuit fixing device described above,
the third clamping part is a second bulge, the deformation piece is an elastic piece, and the deformation piece is bent and deformed to enable the third connecting part to be abutted to the second bulge.
Optionally, the extracorporeal circuit fixing device described above,
the second clamping piece is provided with a third bulge, and the first clamping part is a groove;
the shell is provided with a pressing groove;
the deformation piece is pressed to generate bending deformation, so that the third connecting part is clamped with the third clamping part, and the third protrusion is clamped with the groove.
Optionally, the extracorporeal circulation pipeline fixing device further comprises a ribbon, wherein the ribbon is fixedly connected with the outer side wall of the shell, and the ribbon is suitable for being bound with a pipeline of an extracorporeal circulation machine.
Optionally, in the above extracorporeal circulation tube fixing device, the rubber tube has a flat tube section and a cylindrical tube section connected with the flat tube section, and the plurality of second clamping portions are uniformly distributed on the flat tube section at intervals.
The technical scheme provided by the invention has the following advantages:
1. the invention provides an extracorporeal circulation pipeline fixing device, wherein an extracorporeal circulation pipeline comprises a suture line and a rubber tube, a part of the suture line is suitable for suturing a heart, and the rubber tube is sleeved on the periphery of the rest of the suture line; the fixing device comprises a shell, a first limiting assembly and a second limiting assembly, wherein the shell is sleeved on the periphery of the rubber tube, and a first clamping part is arranged on the inner side wall of the shell; the first limiting assembly comprises a first clamping piece, the first clamping piece is connected with the inner side wall of the shell, and at least one second clamping part is arranged on the outer side wall of the rubber tube; the second limiting assembly comprises a second clamping piece, and the second clamping piece is connected with the first clamping piece; when the rubber tube moves towards the first direction, the first clamping piece can be clamped with the second clamping part; the second clamping piece is suitable for being clamped with the first clamping part under the action of external force, so that the rubber tube is deformed, and the second clamping piece abuts against the suture. In the process of establishing extracorporeal circulation, the shell is pushed to move towards the first direction, the first clamping piece is clamped with the second clamping part, the shell is pushed continuously, the shell and the rubber tube are enabled to move towards the first direction synchronously until one end of the rubber tube, which is far away from the shell, is close to a cardiovascular position, then the second clamping piece is pushed to be clamped with the first clamping part, the second clamping piece is abutted against a suture line, the suture line is prevented from moving in the rubber tube, and the shell is moved to a pipeline of an extracorporeal circulation machine and is fixed with the pipeline of the extracorporeal circulation machine. The fixing device avoids operation risks, saves operation time, and improves operation success rate.
2. According to the extracorporeal circulation pipeline fixing device provided by the invention, one end of the torsion spring is abutted with the first clamping piece, the other end of the torsion spring is abutted with the inner side wall of the shell, and the first clamping piece is prevented from being separated from the second clamping part due to unexpected situations by the damping force generated by the torsion spring.
3. According to the extracorporeal circulation pipeline fixing device provided by the invention, the handle piece is fixedly connected with the part of the rotating shaft extending out of the shell, and the rotating shaft is rotated by rotating the handle piece, and the first clamping piece is rotated, so that the first clamping piece is separated from the second clamping part.
4. According to the extracorporeal circulation pipeline fixing device provided by the invention, the third connecting part is clamped with the third clamping part, so that the third bulge and the groove are clamped, and the rubber pipe is further limited.
5. According to the extracorporeal circulation pipeline fixing device provided by the invention, the shell can be quickly fixed by binding the binding belt with the pipeline of the extracorporeal circulation machine, so that the fixation of the rubber tube and the suture line is realized, the fixing time is saved, and the operation time is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an extracorporeal circulation circuit fixing device provided by the invention;
FIG. 2 is an exploded view of the extracorporeal circuit fixing device of the present invention;
FIG. 3 is a cross-sectional view of the extracorporeal circuit fixing device provided by the present invention with a cylindrical tube section removed;
fig. 4 is an enlarged partial schematic view of circle a of fig. 2.
Reference numerals illustrate:
1. a housing; 11. a first engagement portion; 12. a third engagement portion; 13. a pressing groove;
21. a first clamping piece; 211. a pawl; 22. a damping member; 23. a rotating shaft; 24. a handle member;
31. a second clamping piece; 311. a third protrusion; 32. a deformation member; 321. a first connection portion; 322. a second connecting portion; 323. a third connecting portion; 33. a connecting rod;
4. a rubber tube; 41. a second engaging portion; 411. an abutment surface; 412. a sliding inclined plane; 42. a flat tube segment; 43. a cylindrical tube section.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The extracorporeal circulation pipeline comprises a suture line and a rubber tube 4, a part of the suture line is suitable for being sutured with the heart, the rubber tube 4 is sleeved on the periphery of the other part of the suture line, and the suture line extends out of the rubber tube 4.
Example 1
The embodiment provides an extracorporeal circulation pipeline fixing device, as shown in fig. 1 to 4, the fixing device comprises a shell 1, a first limiting component and a second limiting component, wherein the shell 1 is sleeved on the periphery of a rubber tube 4, and a first clamping part 11 is arranged on the inner side wall of the shell 1; the first limiting assembly comprises a first clamping piece 21, the first clamping piece 21 is connected with the inner side wall of the shell 1, and at least one second clamping part 41 is arranged on the outer side wall of the rubber tube 4; the second limiting assembly comprises a second clamping piece 31, and the second clamping piece 31 is connected with the first clamping piece 21; when the rubber tube 4 moves toward the first direction, the first engaging member 21 can engage with the second engaging portion 41; the second clamping piece 31 is suitable for being clamped with the first clamping part 11 under the action of external force, so that the rubber tube 4 is deformed, and the second clamping piece abuts against the suture.
In the extracorporeal circulation pipeline fixing device provided in this embodiment, in the extracorporeal circulation establishing process, the casing 1 is pushed to move towards the first direction, so that the first clamping piece 21 is clamped with the second clamping portion 41, the casing 1 is pushed continuously, so that the casing 1 and the rubber tube 4 move towards the first direction synchronously until one end of the rubber tube 4, which is far away from the casing 1, is close to the cardiovascular position, then the second clamping piece 31 is pushed to be clamped with the first clamping portion 11, the second clamping piece 31 is abutted against the suture line, the suture line is prevented from moving in the rubber tube 4, and then the casing 1 is moved to the pipeline of the extracorporeal circulation machine and is fixed with the pipeline. The fixing device avoids operation risks, saves operation time, and improves operation success rate.
As shown in fig. 1 to 3, in the extracorporeal circulation circuit fixing device provided in this embodiment, a casing 1 is a rectangular box, taking the perspective of fig. 1 as an example, a through groove is formed at a position of the rectangular box near the bottom, a rectangular groove is formed at the top of the rectangular box, the rectangular groove is a pressing groove 13, two V-shaped grooves are formed at the bottom of the rectangular box, the two V-shaped grooves are located on the same straight line, and the V-shaped grooves are first clamping parts 11; two symmetrical shaft holes are arranged in the middle of the upper part of the shell 1, and a torsion spring abutting groove is arranged at the top of the inner side wall of the shell 1. The rubber tube 4 is composed of a flat tube section 42 and two sections of cylindrical tube sections 43, two ends of the flat tube section 42 are respectively connected with the two sections of cylindrical tube sections 43, the flat tube section 42 is obtained by pressing the sections of cylindrical tube sections 43, and a plurality of second clamping parts 41 are uniformly distributed on the flat tube section 42 at intervals. Part of the flat pipe section 42 is located in the through groove, and the flat pipe section 42 can slide along the axial direction of the through groove.
The extracorporeal circulation pipeline fixing device provided in this embodiment, as shown in fig. 1 to 3, the first limiting component further includes a damping member, the damping member 22 is a torsion spring, one end of the torsion spring abuts against the abutting groove of the torsion spring, the other end of the torsion spring abuts against the upper surface of the first clamping member 21, and the torsion spring has a damping force for limiting the first clamping member 21.
In an alternative embodiment, the first limiting member assembly further includes symmetrically arranged damping members, the damping members are springs, one end of one damping member is welded and fixed with the bottom of the first clamping member 21, the other end of the damping member is welded and fixed with the left side wall of the housing 1, one end of the other damping member is welded and fixed with the bottom of the first clamping member 21, and the other end of the damping member is welded and fixed with the right side wall of the housing 1; both damping members are in a stretched state for limiting the first clamping member 21.
As shown in fig. 1 to 3, in the extracorporeal circulation line fixing device provided in this embodiment, the first limiting component further includes a rotating shaft 23 and a handle member 24, one end of the rotating shaft 23 sequentially passes through two shaft holes, both ends of the rotating shaft 23 extend out of the housing 1, one end of the rotating shaft 23 is provided with a limiting plate, the limiting plate is a circular thin plate, the diameter of the limiting plate is larger than that of the shaft hole, the other end of the rotating shaft 23 is fixedly welded with the handle member 24, and the rotating shaft 23 can only rotate around the axis of the shaft hole through the limiting plate and the limiting of the handle member 24; the damping piece 22 is a torsion spring, the two damping pieces 22 are arranged in the shell 1, the two damping pieces 22 are respectively sleeved at the two ends of the rotating shaft 23, which are positioned at the shell 1, one end of each damping piece 22 stretches into the corresponding torsion spring abutting groove, the other end of each damping piece 22 abuts against the first clamping piece 21, and the first clamping piece 21 is prevented from being separated from the second clamping part 41 due to unexpected conditions such as vibration and collision by damping force generated by the torsion spring; the first clamping piece 21 is formed by integrally forming a first flat plate and a second flat plate, the first flat plate is connected with the second flat plate, the first flat plate is welded and fixed with the rotating shaft 23, the second flat plate forms an obtuse angle with the first flat plate, the second flat plate is a pawl 211, any one of the second clamping parts 41 is a first protrusion, the first protrusion is provided with an abutting surface 411 and a sliding inclined surface 412, the angle between the abutting surface 411 and the vertical direction is an obtuse angle, the angle between the sliding inclined surface 412 and the vertical direction is an acute angle as shown in the view angle of fig. 3, the direction of an arrow in fig. 3 is the first direction, the shell 1 moves towards the first direction, so that the pawl 211 abuts against the abutting surface 411, and when the shell 1 moves towards the direction deviating from the first direction, the pawl 211 is in sliding connection with the adjacent sliding inclined surface 412, namely the pawl 211 can move to the adjacent abutting surface 411.
As shown in fig. 2 to 4, the extracorporeal circulation line fixing device provided in this embodiment further includes a deformation member 32 and two connecting rods 33, the deformation member 32 is a wedge-shaped piece, the deformation member 32 is made of elastic metal, the deformation member 32 has a first connecting portion 321, a second connecting portion 322 and a third connecting portion 323, the first connecting portion 321 and the third connecting portion 323 are respectively two sides of the deformation member 32, the second connecting portion 322 is the middle of the bottom of the deformation member 32, the first connecting portion 321 is welded and fixed with the first clamping member 21, the two connecting rods 33 are located between the second clamping member 31 and the deformation member 32, and the two connecting rods 33 are arranged at intervals; the third clamping part 12 is a second bulge, the shell is provided with a transverse plate, the third clamping part is positioned on the transverse plate, the deformation piece 32 is bent and deformed to enable the third connecting part 323 to be abutted against the second bulge, the second clamping piece 31 is provided with two third bulges 311 which are distributed at intervals, the third bulges 311 are triangular bulges, when the second connecting part 322 is abutted against the second bulge, the third bulges 311 are abutted against the V-shaped groove, part of the flat pipe section 42 is deformed and sunk into the V-shaped groove, and the third bulges 311 compress the suture line.
The extracorporeal circulation pipeline fixing device that this embodiment provided, still include the ribbon, this ribbon is the rigidity ribbon, and this ribbon welded fastening is at the bottom lateral wall of casing 1, when the ribbon is close to extracorporeal circulation pipeline, with this ribbon and extracorporeal circulation pipeline ligature. The use of the extracorporeal circulation pipeline fixing device avoids the use of mosquito clamps, and the extracorporeal circulation pipeline fixing device has small volume, so that medical staff has a larger operation field.
The invention provides an extracorporeal circulation pipeline fixing device, which has the following working process:
firstly, one hand pulls the suture extending out of the rubber tube 4 to tighten, the other hand pushes the shell 1 to move towards the first direction, because the first clamping piece 21 is abutted against the flat tube section 42 under the action of the damping piece 22 at this time, when the pawl 211 is abutted against the abutting surface 411 closest to the pawl along the first direction, the rubber tube 4 moves along with the shell 1 towards the first direction until the cylindrical tube section 43 abuts against the cardiovascular position, then the shell 1 is loosened, the fingers extend into the pressing groove 13 and press the deformation piece 32, the deformation piece 32 is bent and deformed, the first connecting part 321 is clamped with the third clamping part 12, the connecting rod 33 drives the second clamping piece 31 to move to the bottom of the first clamping part 11, the flat tube section 42 is bent and deformed to form a wavy shape, and the second clamping piece 31 abuts against the flat tube section 42, namely, the suture fixing of the suture and the rubber tube 4 is realized, then the shell 1 is moved to the pipeline of the extracorporeal circulation machine, and the pipeline is bound on the extracorporeal circulation machine. The extracorporeal circulation pipeline fixing device is simple to operate, and convenient for medical staff to rapidly fix the suture line and the rubber tube.
When the flat pipe section 42 needs to be loosened, the handle member 24 is pulled by hand, the handle member 24 drives the rotating shaft 23 to rotate, the rotation drives the first clamping member 21 to rotate, the second clamping member 31 drives the pawl 211 to separate from the abutting surface 411, the pawl 211 has elasticity, that is, the pawl 211 is flat and separates from the abutting surface 411, at this time, the deformation member 32 is further deformed until the third connecting portion 323 separates from the third clamping portion 12, the deformation member 32 is restored, and the second clamping member 31 is driven to separate from the first clamping portion 11 through the connecting rod.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (10)

1. An extracorporeal circulation pipeline fixing device comprises a suture line and a rubber tube (4), wherein part of the suture line is suitable for suturing the heart, and the rubber tube (4) is sleeved on the periphery of the rest of the suture line; characterized in that the fixing device comprises:
the shell (1) is sleeved on the periphery of the rubber tube (4), and a first clamping part (11) is arranged on the inner side wall of the shell (1);
the first limiting assembly comprises a first clamping piece (21), the first clamping piece (21) is connected with the inner side wall of the shell (1), and at least one second clamping part (41) is arranged on the outer side wall of the rubber tube (4);
the second limiting assembly comprises a second clamping piece (31), and the second clamping piece (31) is connected with the first clamping piece (21);
when the housing (1) moves towards a first direction, the first clamping piece (21) can be clamped with the second clamping part (41);
the second clamping piece (31) is suitable for being clamped with the first clamping part (11) under the action of external force, so that the rubber tube (4) is deformed, and the second clamping piece (31) abuts against the suture line.
2. The extracorporeal circuit fixing device according to claim 1, wherein the first limiting assembly further comprises a damping member (22), one end of the damping member (22) is connected with the inner side wall of the housing (1), the other end of the damping member (22) is connected with the first clamping member (21), the damping member (22) has a damping force, and the damping force limits the first clamping member (21).
3. The extracorporeal circuit fixture of claim 2, wherein the first stop assembly further comprises:
the rotating shaft (23) is rotationally connected with the inner side wall of the shell (1), and the rotating shaft (23) is fixedly connected with the first clamping piece (21);
the damping piece (22) is a torsion spring, the torsion spring is sleeved on the periphery of the rotating shaft (23), one end of the torsion spring is abutted to the first clamping piece (21), and the other end of the torsion spring is abutted to the inner side wall of the shell (1).
4. The extracorporeal circuit fixing device according to claim 3, wherein,
a pawl (211) is arranged on one side of the first clamping piece (21) close to the second clamping part (41);
the rubber tube (4) is uniformly provided with a plurality of second clamping parts (41) at intervals, the second clamping parts (41) are first bulges, and the first bulges are provided with abutting surfaces (411) and sliding inclined surfaces (412);
when the shell (1) moves towards the first direction, the pawl (211) can be abutted with the abutting surface (411) and limit the rubber tube (4);
when the housing (1) moves towards the direction away from the first direction, the pawl (211) is in sliding connection with the adjacent sliding inclined surface (412).
5. The extracorporeal circuit fixture of claim 4, wherein the first limiting assembly further comprises a handle member (24), one end of the rotating shaft (23) extends out of the housing (1), the handle member (24) is fixedly connected with a portion of the rotating shaft (23) extending out of the housing (1), and the handle member (24) enables the pawl (211) to be separated from the abutment surface (411).
6. The extracorporeal circuit fixture of any one of claims 1-5, wherein the second stop assembly further comprises:
the deformation piece (32), the deformation piece (32) is provided with a first connecting part (321), a second connecting part (322) and a third connecting part (323), and the first connecting part (321) is fixedly connected with the first clamping piece (21);
the connecting rod (33), one end of the connecting rod (33) is fixedly connected with the second connecting part (322), and the other end of the connecting rod (33) is fixedly connected with the first clamping piece (21);
the inner side wall of the shell (1) is provided with a third clamping part (12), and the deformation piece (32) elastically deforms so that the third connecting part (323) is clamped with the third clamping part (12).
7. The extracorporeal circuit fixing device according to claim 6, wherein,
the third clamping part (12) is a second bulge, the deformation piece (32) is an elastic sheet, and the deformation piece (32) is bent and deformed to enable the third connecting part (323) to be abutted with the second bulge.
8. The extracorporeal circuit fixing apparatus according to claim 7, wherein,
the second clamping piece (31) is provided with a third protrusion (311), and the first clamping part (11) is a groove;
a pressing groove (13) is formed in the shell (1);
the deformation member (32) is pressed to generate bending deformation, so that the third connecting portion (323) is clamped with the third clamping portion (12), and the third protrusion (311) is clamped with the groove.
9. The extracorporeal circuit fixture of claim 8, further comprising a tie fixedly connected to the outer side wall of the housing (1), the tie adapted to tie to a circuit of an extracorporeal circuit machine.
10. The extracorporeal circuit fixture of claim 9, wherein the rubber tube (4) has a flat tube section (42) and a cylindrical tube section (43) connected thereto, and the plurality of second engaging portions (41) are uniformly spaced on the flat tube section (42).
CN202310411243.3A 2023-04-18 2023-04-18 Extracorporeal circulation pipeline fixing device Active CN116139354B (en)

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CN104759020A (en) * 2014-01-06 2015-07-08 韩劲松 Fixing device for extracorporeal circulation pipelines used in cardiac surgical procedures
CN105105822A (en) * 2015-07-24 2015-12-02 中国人民解放军第二军医大学 Occlusive endarterium peeling and cutting device
CN206424408U (en) * 2016-11-01 2017-08-22 中国医学科学院阜外医院 A kind of department of cardiac surgery's extracorporal circulatory system pipeline fixing device
CN107224658A (en) * 2017-05-31 2017-10-03 威海美迪森医疗器械有限公司 A kind of catheter anchoring system, wearable catheter anchoring system and method for wearing
CN209451036U (en) * 2018-12-04 2019-10-01 贵州省人民医院 Extracorporeal circulation pipeline fixes device
US20190336675A1 (en) * 2018-05-07 2019-11-07 Renal Devices Inc. Flow controller for vessel banding
CN216439720U (en) * 2021-08-17 2022-05-06 南通市第一老年病医院(上海大学附属南通医院、南通市第六人民医院、南通市肺科医院) Hemodialysis pipe fixing band convenient to adjust

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104759020A (en) * 2014-01-06 2015-07-08 韩劲松 Fixing device for extracorporeal circulation pipelines used in cardiac surgical procedures
CN105105822A (en) * 2015-07-24 2015-12-02 中国人民解放军第二军医大学 Occlusive endarterium peeling and cutting device
CN206424408U (en) * 2016-11-01 2017-08-22 中国医学科学院阜外医院 A kind of department of cardiac surgery's extracorporal circulatory system pipeline fixing device
CN107224658A (en) * 2017-05-31 2017-10-03 威海美迪森医疗器械有限公司 A kind of catheter anchoring system, wearable catheter anchoring system and method for wearing
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CN209451036U (en) * 2018-12-04 2019-10-01 贵州省人民医院 Extracorporeal circulation pipeline fixes device
CN216439720U (en) * 2021-08-17 2022-05-06 南通市第一老年病医院(上海大学附属南通医院、南通市第六人民医院、南通市肺科医院) Hemodialysis pipe fixing band convenient to adjust

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