CN112998822B - Puncture cannula and perfusion catheter for perfusion of abdominal organ transplant donor - Google Patents

Puncture cannula and perfusion catheter for perfusion of abdominal organ transplant donor Download PDF

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Publication number
CN112998822B
CN112998822B CN202110292315.8A CN202110292315A CN112998822B CN 112998822 B CN112998822 B CN 112998822B CN 202110292315 A CN202110292315 A CN 202110292315A CN 112998822 B CN112998822 B CN 112998822B
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valve
perfusion
puncture
return
fill
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CN112998822A (en
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周卧龙
黄昌浩
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Xiangya Hospital of Central South University
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Xiangya Hospital of Central South University
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • 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
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • 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
    • A61M25/10—Balloon catheters
    • A61M25/1011—Multiple balloon catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B2017/3454—Details of tips
    • 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
    • A61M2025/0008—Catheters; Hollow probes having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
    • 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
    • A61M25/10—Balloon catheters
    • A61M25/1011—Multiple balloon catheters
    • A61M2025/1013—Multiple balloon catheters with concentrically mounted balloons, e.g. being independently inflatable
    • 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
    • A61M25/10—Balloon catheters
    • A61M25/1011—Multiple balloon catheters
    • A61M2025/1015—Multiple balloon catheters having two or more independently movable balloons where the distance between the balloons can be adjusted, e.g. two balloon catheters concentric to each other forming an adjustable multiple balloon catheter system

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Animal Behavior & Ethology (AREA)
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Abstract

The invention discloses a puncture cannula for perfusion of an abdominal organ transplant donor, which is of a hollow tubular structure, wherein a non-return tricuspid valve is arranged in the puncture cannula, two sides of the non-return tricuspid valve are respectively a first side and a second side, the non-return tricuspid valve is used for preventing blood from flowing from the first side to the second side, meanwhile, an perfusion tube can penetrate through the non-return tricuspid valve from the second side to enter the first side, and a puncture tip of the puncture cannula is positioned at the first side. The invention also discloses a perfusion catheter for perfusion of an abdominal organ transplant donor, which comprises a perfusion tube and the puncture cannula, wherein the perfusion tube can penetrate through the hollow inner cavity of the puncture cannula in a mode of penetrating the non-return tricuspid valve from the second side into the first side. The invention has the advantages of good puncture effect, avoiding blood from splashing and spraying, effectively improving perfusion efficiency, ensuring the quality of donor organs and the like.

Description

Puncture cannula and perfusion catheter for perfusion of abdominal organ transplantation donor
Technical Field
The invention relates to the technical field of organ transplant donor surgical instruments, in particular to a puncture cannula and a perfusion catheter for perfusion of an abdominal organ transplant donor.
Background
In donor surgery donated by abdominal organs (such as liver, kidney, pancreas, small intestine, etc.), an abdominal organ perfusion system needs to be established as soon as possible, and the central temperature of the target organ is rapidly reduced through efficient perfusion, so as to reduce the warm ischemia time of the target organ, improve the success rate of transplantation operation, and simultaneously, avoid the perfusion fluid from flowing into unnecessary organs. The current surgical methods are: firstly, exposing abdominal aorta below superior mesenteric artery, ligating a distal aorta, threading a proximal aorta, cutting the wall of the proximal aorta, then placing an adult catheter (the front end of the catheter is ligated before an operation, and a plurality of side holes are cut on the wall of the back side of a saccule), and placing the catheter deep to enter thoracic aorta, wherein the operation is usually held by the experience of an operator; then the catheter saccule is filled with water, the pipeline is initially fixed, the perfusion liquid is reduced to flow into the thoracic aorta, in addition, the near-end suture of the puncture hole is used for reinforcing and fixing the catheter, and attention should be paid to the appropriate knotting tightness of the suture to avoid the catheter from being pricked and closed. The abdominal aorta needs to be cut firstly in the process of placing the catheter in an operation, the abdominal aorta is often overhigh in blood pressure during the operation, and part of donors have aorta sclerosis, so blood splashes after the incision, the blood is easily sprayed into the abdominal cavity, and the operation visual field is fuzzy, so two surgeons are needed to be closely matched in the process of placing the catheter, the operation is complex, the possibility of repeatedly placing the catheter for many times or even the failure of placing the catheter exists, a large amount of bleeding influences the next operation, and the perfusion efficiency of donor organ perfusate and the quality of organs are seriously influenced.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a puncture cannula and a perfusion catheter for perfusion of an abdominal organ transplantation donor, which have the advantages of good puncture effect, prevention of blood splashing and ejection, effective improvement of perfusion efficiency and guarantee of the quality of the donor organ.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the puncture cannula is of a hollow tubular structure, a check tricuspid valve is arranged in the puncture cannula, the two sides of the check tricuspid valve are respectively a first side and a second side, the check tricuspid valve is used for preventing blood from flowing from the first side to the second side, meanwhile, the perfusion tube can penetrate through the check tricuspid valve from the second side to enter the first side, and the puncture tip of the puncture cannula is positioned at the first side.
Preferably, the check tricuspid valve comprises three valve bodies, each valve body comprises a valve, a valve ring and a valve edge, the valve rings are fixed on the inner wall of the corresponding puncture sleeve, the valve is in a cambered surface shape protruding towards the second side, the outer side of the valve is attached to the valve ring, the valve edges are located on the inner side edges of the valves, and the valve edges of the adjacent valve bodies are tightly attached to form a closed tricuspid valve structure.
Preferably, the valve body further comprises a valve tendon, one end of the valve tendon is fixed on the inner wall of the puncture cannula, and the other end of the valve tendon is fixedly connected with the valve margin.
Preferably, the puncture tip of the puncture cannula is provided with a one-way cover plate capable of closing an opening of the puncture tip, and one end of the one-way cover plate is hinged with the tube wall of the puncture cannula, so that the one-way cover plate can be opened only from inside to outside.
Preferably, the puncture tip of the puncture cannula is formed by an inclined plane inclined towards one side, a marking line for displaying the puncture depth is arranged on the puncture cannula, and the one-way cover plate and the wall of the puncture cannula are both made of metal materials.
As a general technical idea, the present invention also provides a perfusion catheter for perfusion of an abdominal organ transplant donor, comprising an perfusion tube and the above-mentioned puncture cannula, the perfusion tube being adapted to pass through the hollow lumen of the puncture cannula from the second side through the non-return tricuspid valve into the first side.
Preferably, one end of the perfusion tube is closed, the other end of the perfusion tube is provided with a perfusion opening capable of conveying perfusion liquid towards the hollow inner cavity of the perfusion tube, the perfusion tube is provided with two inflatable water bags which are arranged at intervals, and a perfusion liquid outlet is formed in the tube wall of the perfusion tube between the two inflatable water bags.
Preferably, the perfusion tube is provided with a water filling channel for filling the water bag with water, one end of the water filling channel is communicated with the water bag, the other end of the water filling channel is provided with a water filling port, the water filling port is provided with a non-return mechanism for preventing liquid in the water bag from flowing back, and the water filling channels of the two water bags are independent from each other.
Preferably, the perfusion tube is provided with an annular water bag groove, the inflatable water bag is arranged in the annular water bag groove, and the inflatable water bag does not exceed the annular water bag groove when not filled with water.
Above-mentioned a perfusion catheter for abdominal organ transplantation donor perfusion, preferentially, the perfusion tube is for resistance to compression plastics or rubber material, and the blind end of perfusion tube is equipped with the arc end.
In the perfusion catheter for perfusion of the abdominal organ transplant donor, preferably, the indication scale for displaying the insertion depth of the perfusion tube is arranged on the outer wall of the perfusion tube close to the perfusion opening.
Compared with the prior art, the invention has the advantages that:
1. the puncture cannula greatly simplifies the operation of establishing an abdominal aorta perfusion system, reduces the ischemia time of organs, improves the quality of donor organs, and simultaneously the non-return tricuspid valve structure can effectively block the impact of arterial blood and blood overflow, reduces the risks of difficult catheterization, blurred vision, blood pollution and disease infection caused by blood overflow, can effectively prevent operators from contacting splashed blood, avoids the spread of possible blood infectious diseases, and has the advantages of high efficiency, convenience, safety and the like.
2. The perfusion catheter is a device for puncturing abdominal aorta and establishing a perfusion system in an abdominal organ acquisition operation, wherein a puncture cannula can conveniently and safely complete arterial puncture, can block arterial pressure and prevent blood from overflowing, and is matched with the puncture cannula to be rapidly placed in an artery and efficiently perfuse a donor organ, so that the quality of the donor organ is improved.
Drawings
Fig. 1 is a perspective view of a puncture cannula for perfusion of an abdominal organ transplant donor of the embodiment (a one-way cover plate unopened state).
Fig. 2 is a perspective view of the puncture cannula for perfusion of an abdominal organ transplant donor of the embodiment (one-way cover open state).
Fig. 3 is a perspective view showing another direction of the puncture cannula for perfusion of an abdominal organ transplant donor according to the embodiment.
Fig. 4 is a cross-sectional view of the puncture cannula for perfusion of an abdominal organ transplant donor of the embodiment (one-way cover plate unopened state).
Fig. 5 is a three-dimensional structure diagram of the perfusion tube in the embodiment (the water bag can be filled without water).
Fig. 6 is a three-dimensional structure diagram of the perfusion tube in the embodiment (the water filling state of the water filling type water bag).
Fig. 7 is a cross-sectional view of the infusion tube in the example.
Illustration of the drawings:
1. a non-return tricuspid valve; 11. a first side; 12. a second side; 13. a flap body; 131. a valve; 132. an annulus; 133. a flap edge; 134. the valve tendon; 2. a one-way cover plate; 3. an infusion port; 4. a water bag which can be filled; 41. an annular water bag groove; 5. a perfusate outlet; 6. a water filling channel; 61. filling a water gap; 7. marking a line; a. puncturing a cannula; b. and (4) filling a tube.
Detailed Description
In order to facilitate understanding of the invention, the invention will be described more fully and in detail with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
As shown in fig. 1 and 5, the perfusion catheter for perfusion of an abdominal organ transplant donor according to the present embodiment includes a puncture cannula a for puncturing the abdominal aorta rapidly and preventing blood from splashing during puncturing, and an perfusion tube b for perfusion efficiently through the hollow lumen of the puncture cannula a to ensure the quality of the donor organ.
As shown in fig. 2 to 4, the puncture cannula a of the present embodiment is a hollow tubular structure, a non-return tricuspid valve 1 is disposed in the puncture cannula a, two sides of the non-return tricuspid valve 1 are a first side 11 and a second side 12, respectively, the non-return tricuspid valve 1 is used for preventing blood from flowing from the first side 11 to the second side 12, and simultaneously, an infusion tube b can pass through the non-return tricuspid valve 1 from the second side 12 to enter the first side 11, and a puncture tip of the puncture cannula a is located at the first side 11. Specifically, the left side in the drawing is a first side 11, the right side is a second side 12, the puncture tip on the left side can pierce the abdominal aorta, due to the effect of the check tricuspid valve 1, blood in the abdominal aorta can not be splashed and sprayed during puncture, a good condition is provided for subsequent perfusion operation, the perfusion tube b can be efficiently perfused by penetrating the perfusion tube b from the second side 12 to the first side 11 in the puncture sleeve during perfusion, and the quality of donor organs is effectively guaranteed.
In this embodiment, the non-return tricuspid valve 1 includes three sets of valve bodies 13, each valve body 13 includes a valve 131, a valve ring 132 and a valve edge 133, the valve ring 132 is fixed on the inner wall of the puncture sleeve a, the valve 131 is in a cambered surface shape protruding toward the second side 12, the outer side of the valve 131 is attached to the valve ring 132, the valve edge 133 is located at the inner side edge of the valve 131, and the valve edges 133 of adjacent valve bodies 13 are tightly attached to form a closed tricuspid valve structure. Specifically, the non-return tricuspid valve 1 is made of composite fiber compact material, and is used as a bionic structure of an animal heart tricuspid valve and is arranged inside a tubular needle cylinder of a puncture casing a, each set of valve bodies 13 comprises a valve 131, a valve ring 132 and a valve edge 133, the valve 131 is soft and compact, and plays a role in blocking blood countercurrent by matching with a convex structure of the valve 131, and can be opened towards the tip when the perfusion tube b passes through, the valve ring 132 is a part of the valve 131 connected with the inner wall of the puncture casing a, the valve edge 133 is a part of the three valve 131 contacting with each other, and the three sets of valve bodies 13 are matched to realize one-way opening and closing from the tail end to the tip, so that the effect of preventing blood countercurrent passing through the perfusion tube b in one way is realized, the puncture and perfusion processes can be completed by single operation, thereby not only being convenient for operation, reducing the risk of blood splashing, and improving the efficiency and the quality of donor organs.
In this embodiment, the valve body 13 further includes a valve tendon 134, one end of the valve tendon 134 is fixed on the inner wall of the puncture cannula a, and the other end is fixedly connected with the valve edge 133. Specifically, the valve tendon 134 is tough and has small elasticity, one end of the valve tendon 134 is fixedly connected to the inner wall of the puncture cannula a, and the other end of the valve tendon is fixedly connected to the midpoint of the valve edge 133, so as to play a role of pulling the valve 131 against the blood backflow, and the valve tendon 134 can further strengthen the backflow resistance of the non-return tricuspid valve 1, and simultaneously provide a proper amount of buffer space to more effectively ensure the passage of the perfusion tube b. In other embodiments, one end of the valve tendon 134 is fixed on the inner wall of the puncture cannula a, and the other end of the valve tendon 134 is divided into a plurality of strands uniformly fixedly connected with the valve margin 133.
In this embodiment, the puncture tip of the puncture cannula a is provided with a one-way cover plate 2 capable of sealing the opening of the puncture tip, and one end of the one-way cover plate 2 is hinged to the wall of the puncture cannula a, so that the one-way cover plate 2 can only be opened from inside to outside. Specifically, one-way apron 2 is for matcing with puncture sleeve a most advanced opening shape and size and can cover most advanced open-ended metal sheet, one-way apron 2 is favorable to puncture sleeve a's puncture and slides in the artery, set up one-way apron 2 that can only one-way open from inside to outside simultaneously and block up puncture sleeve a in order to prevent to puncture the vascular tissue after the puncture when carrying out the puncture, one-way apron 2 also can play simultaneously and block the pressure shock and most blood flow that come from arterial blood, further avoid blood splash, articulated connected mode can guarantee that perfusion tube b can be inside with one-way apron 2 overhead opening get into the aorta smoothly in subsequent the operation of filling of being convenient for.
In this embodiment, the puncture tip of the puncture cannula a is formed by an inclined surface inclined towards one side, the puncture cannula a is provided with a mark line 7 for displaying the puncture depth, and the one-way cover plate 2 and the wall of the puncture cannula a are both made of metal. Specifically, the inner diameter of the puncture cannula a of the embodiment is 7mm and is slightly larger than the perfusion tube b, the inclined plane of the puncture tip forms a sharp needle point structure, the structure is favorable for puncturing the artery wall, the inclined plane is favorable for the puncture cannula a to slide into the artery, the control is easier, the operation time is saved, meanwhile, the puncture tip can also be used as the outlet of the perfusion tube b, the marking line 7 is arranged at the position 4cm away from the puncture tip on the outer wall of the puncture cannula a, specifically, a green mark ring is used for displaying the puncture depth, the one-way cover plate 2 and the puncture cannula a are made of metal materials so as to provide enough strength for puncturing the artery and supporting the space for the perfusion tube b to pass through.
In this embodiment, the infusion tube b may be passed through the hollow lumen of the puncture cannula a from the second side 12 through the non-return tricuspid valve 1 into the first side 11, thereby quickly placing the infusion tube b in.
As shown in fig. 6, in this embodiment, one end of the perfusion tube b is closed, the other end of the perfusion tube b is provided with a perfusion port 3 capable of delivering a perfusion fluid towards the hollow inner cavity of the perfusion tube b, the perfusion tube b is provided with two inflatable water bags 4, the two inflatable water bags 4 are arranged at an interval, and a perfusion fluid outlet 5 is arranged on the tube wall of the perfusion tube b between the two inflatable water bags 4. Specifically, the front end of perfusion tube b is solid blunt for perfusion tube b can put into abdominal aorta smoothly, and two can fill formula water bags 4 apart from 15cm (the interval of two can fill formula water bags 4 can carry out the adaptability along with the height of donor and adjust, thereby sets up multiple specification), and the perfusate can follow pouring into mouth 3 and get into perfusion tube b, then flows out from perfusate export 5 and carries out the high-efficient perfusion of appointed donor's organ.
As shown in fig. 7, in this embodiment, the filling pipe b is provided with a water filling passage 6 for filling the water bag 4 with water, one end of the water filling passage 6 is communicated with the water bag 4, the other end is provided with a water filling port 61, the water filling port 61 is provided with a non-return mechanism for preventing the liquid in the water bag 4 from flowing back, and the water filling passages 6 of the two water bags 4 are independent from each other. Specifically, the check mechanism is a check valve which is closed in a natural state to prevent the liquid in the inflatable water bag 4 from flowing back, the liquid can prop open the check mechanism at the water filling port 61 after being connected with an injector to fill the inflatable water bag 4, the inflatable water bag 4 can be inflated to the diameter of 3-5cm after being filled with water, the water filling amount of the inflatable water bag 4 can be adjusted to adapt to different donors according to specific conditions, the two inflatable water bags 4 are independently provided with the water filling channels 6 to facilitate independent accurate adjustment of the inflatable water bag 4 according to the conditions, the pressure reducing bag is arranged at the inlet of the water filling port 61, the inflatable water bag 4 at the front end can block the perfusion liquid from flowing to the thoracic aorta and the upper limbs after being filled, the inflatable water bag 4 at the rear end can block the perfusion liquid from flowing to the common iliac artery and the lower limbs after being filled, thereby ensuring the abdominal cavity perfusion liquid to be effectively perfused and required to obtain, such as the liver, kidney, pancreas, small intestine, etc.
In this embodiment, the filling tube b is provided with an annular water bag groove 41, the water bag 4 is disposed in the annular water bag groove 41, and the water bag 4 does not exceed the annular water bag groove 41 when water is not filled. The annular water bag groove 41 for accommodating the water bag 4 can prevent the water bag 4 from protruding when water is not filled, so that the filling pipe b can be conveniently and smoothly placed in, and the water bag 4 is prevented from being difficult to fully open or damage due to wrinkles formed by friction when the water bag is placed in.
In this embodiment, the filling pipe b is made of pressure-resistant plastic or rubber, and the closed end of the filling pipe b is provided with an arc-shaped end. Adopt the resistance to compression material to have certain toughness, can avoid filling and lead to filling pipe b pressurized and collapse after formula water pocket 4 fills water, influence the circulation of inside perfusate and fill, the surface is smooth simultaneously and has certain elasticity to insert the blood vessel smoothly, and adopt the arc end can avoid filling pipe b to puncture the blood vessel from inside when putting into.
In this embodiment, the outer wall of the perfusion tube b near the perfusion opening 3 is provided with an indication scale for displaying the insertion depth of the perfusion tube b. The indication scale can make the operator clearly see the depth of the perfusion tube b, thereby facilitating the operation.
The application method of the embodiment is as follows: preoperatively testing whether the inflatable water bags 4 in front of and behind the filling pipe b are intact and can smoothly fill water or not, and then connecting the filling port 3 with a filling bag; after the abdominal cavity is opened, finding the abdominal aorta at the root of the mesentery, opening the peritoneum, and exposing the abdominal aorta; the puncture tip of the puncture cannula a is downwards, the inclined plane is upwards, and the puncture cannula a punctures the proximal end at an included angle of 30 degrees with the abdominal aorta; stopping puncturing when the depth of the puncture cannula a reaches the marking line 7, and enabling all inlets of the puncture cannula a to enter the artery; then the perfusion tube b is arranged from the tail end (the second side 12) of the puncture sleeve a, the perfusion tube b pushes the one-way cover plate 2 open after passing through the check tricuspid valve 1, then is pushed to the designated position towards the proximal end, water is injected into the chargeable water sac 4 at the front end, water is injected into the chargeable water sac 4 at the rear end, the perfusion fluid is injected into the perfusion opening 3 after blocking the two ends, and the perfusion fluid flows out from the perfusion fluid outlet 5, thereby completing the perfusion of the donor organ.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed solution, or modify equivalent embodiments using the teachings disclosed above, without departing from the scope of the solution. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims (7)

1. A puncture cannula for perfusion of an abdominal organ transplant donor, characterized in that: the puncture cannula (a) is of a hollow tubular structure, a non-return tricuspid valve (1) is arranged in the puncture cannula (a), a first side (11) and a second side (12) are respectively arranged at two sides of the non-return tricuspid valve (1), the non-return tricuspid valve (1) is used for preventing blood from flowing from the first side (11) to the second side (12), meanwhile, an infusion tube (b) can penetrate through the non-return tricuspid valve (1) from the second side (12) to enter the first side (11), and a puncture tip of the puncture cannula (a) is positioned at the first side (11);
the non-return tricuspid valve (1) comprises three valve bodies (13), each valve body (13) comprises a valve (131), an annulus (132) and a valve edge (133), the annulus (132) is fixed on the inner wall of the puncture sleeve (a), the valve (131) is in a cambered surface shape protruding towards the second side (12), the outer side of the valve (131) is attached to the annulus (132), the valve edge (133) is located at the inner side edge of the valve (131), and the valve edges (133) of the adjacent valve bodies (13) are tightly attached to form a closed tricuspid valve structure;
the valve body (13) further comprises a valve tendon (134), one end of the valve tendon (134) is fixed on the inner wall of the puncture cannula (a), and the other end of the valve tendon (134) is fixedly connected with the valve edge (133);
the valve tendon (134) is used for strengthening the anti-reflux function of the non-return tricuspid valve (1) and simultaneously ensuring that the perfusion tube (b) passes through;
the puncture tip of the puncture sleeve (a) is provided with a one-way cover plate (2) capable of sealing the opening of the puncture tip, one end of the one-way cover plate (2) is hinged with the tube wall of the puncture sleeve (a), so that the one-way cover plate (2) can be opened only in the direction from inside to outside.
2. The puncture cannula for perfusion of an abdominal organ transplant donor according to claim 1, wherein: the puncture tip of the puncture sleeve (a) is formed by an inclined plane inclined towards one side, a marking line (7) for displaying the puncture depth is arranged on the puncture sleeve (a), and the one-way cover plate (2) and the wall of the puncture sleeve (a) are made of metal materials.
3. A perfusion catheter for perfusion of an abdominal organ transplant donor, characterized by: comprising an infusion tube (b) and a puncture cannula (a) according to claim 1 or 2, said infusion tube (b) being passable through the hollow lumen of the puncture cannula (a) from the second side (12) through the non-return tricuspid valve (1) into the first side (11).
4. Perfusion catheter for perfusion of abdominal organ transplant donors according to claim 3, characterized in that: the one end of filling pipe (b) is sealed, and the other end is equipped with can be towards filling mouth (3) of the cavity inner chamber transport perfusate of filling pipe (b), it can fill formula water pocket (4) to be equipped with two on filling pipe (b), two can fill formula water pocket (4) interval arrangement, and two can fill and be equipped with perfusate export (5) on the pipe wall of filling pipe (b) between formula water pocket (4).
5. Perfusion catheter for perfusion of abdominal organ transplant donors according to claim 4, characterized in that: fill and be equipped with on pipe (b) and be used for can fill formula water pocket (4) and fill water passageway (6) of filling of water, fill the one end of water passageway (6) and can fill formula water pocket (4) intercommunication, the other end is equipped with and fills mouth of a river (61), fill mouth of a river (61) department and be equipped with the non-return mechanism who is used for preventing can fill interior liquid refluence of formula water pocket (4), two can fill formula water pocket (4) fill water passageway (6) mutual independence.
6. Perfusion catheter for perfusion of abdominal organ transplant donors according to claim 4, characterized in that: the filling pipe (b) is provided with an annular water bag groove (41), the inflatable water bag (4) is arranged in the annular water bag groove (41), and the inflatable water bag (4) does not exceed the annular water bag groove (41) when not filled with water.
7. Perfusion catheter for perfusion of abdominal organ transplant donors according to any one of claims 3 to 6, characterized by: the filling pipe (b) is made of pressure-resistant plastic or rubber, and the closed end of the filling pipe (b) is provided with an arc-shaped end.
CN202110292315.8A 2021-03-18 2021-03-18 Puncture cannula and perfusion catheter for perfusion of abdominal organ transplant donor Active CN112998822B (en)

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CN114041862A (en) * 2021-12-20 2022-02-15 郜向前 Safety air bag type puncture guide core of abdominal cavity puncture outfit for laparoscope
CN114869359B (en) * 2022-05-27 2023-08-22 四川大学华西医院 Catheter apparatus
CN115316375B (en) * 2022-08-15 2023-08-18 四川大学华西医院 Integrated puncture perfusion catheter for perfusion of abdominal organ transplantation donor

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CN2538364Y (en) * 2002-03-27 2003-03-05 鞍山钢铁集团公司 Abdominocentesis perfusion chemotherapeutic apparatus
CN203736601U (en) * 2014-02-27 2014-07-30 郭源 Three-cavity two-balloon arterial perfusion pipe
CN104770361B (en) * 2015-03-11 2017-05-17 浙江大学 Supplied-liver quickly-fixed perfusion device for liver transplant
CN108814686B (en) * 2018-04-20 2020-10-30 山东第一医科大学附属省立医院(山东省立医院) Cardiovascular interventional therapy device
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