CN110538359A - Anti-thrombus venous indwelling needle and anti-thrombus method thereof - Google Patents
Anti-thrombus venous indwelling needle and anti-thrombus method thereof Download PDFInfo
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- CN110538359A CN110538359A CN201910813052.3A CN201910813052A CN110538359A CN 110538359 A CN110538359 A CN 110538359A CN 201910813052 A CN201910813052 A CN 201910813052A CN 110538359 A CN110538359 A CN 110538359A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
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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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
- A61M5/445—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1586—Holding accessories for holding infusion needles on the body
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
the invention discloses a thrombus-preventing venous indwelling needle and a thrombus-preventing method thereof, relating to the technical field of medical equipment, and the technical scheme is as follows: comprises a needle seat, an indwelling hose connected with the top end of the needle seat in a sealing way, a puncture needle, a first liquid inlet port, a second liquid inlet port, a first liquid guide pipe, a second liquid guide pipe, a liquid conveying pipe, an indwelling needle temperature-rising device, a connecting fixing belt and a temperature-rising bandage; the inner cavity of the needle base is provided with a first rubber sealing plug and a second rubber sealing plug which divide the inner cavity of the needle base into a transfusion cavity, a positive pressure cavity and a bottom sealing cavity; the positive pressure cavity is provided with a liquid storage cavity. The venous transfusion device can locally heat the venous indwelling needle to ensure that the venous indwelling needle tube and limbs of a patient are locally heated, thereby improving the functions of blood circulation and tissue metabolism, influencing the coagulation of protein and blood coagulation factors in blood vessels of the patient, further weakening the starting blood coagulation of platelets, preventing the formation of thrombus, and preventing the backflow of blood into the venous indwelling needle after the venous transfusion is finished to prevent the backflow of blood.
Description
Technical Field
the invention relates to the technical field of medical equipment, in particular to a thrombus-preventing venous indwelling needle and a thrombus-preventing method thereof.
Background
The venous indwelling needle is also called a trocar and is used as a substitute product of a scalp needle, has the advantages of simple operation, soft cannula, long cannula indwelling time in the vein, difficult puncture of the blood vessel and the like, relieves the pain of repeated puncture of patients, relieves the workload of nursing staff, and is popular with patients in clinic. However, the existing common indwelling needle needs to be sealed when the infusion is paused, and the catheter is flushed every 6 to 8 hours, otherwise the existing common indwelling needle is easy to form thrombus to cause blockage and vasculitis; when the infusion is performed again, the tube needs to be communicated, the hidden trouble that the formed thrombus is flushed into the blood vessel exists in the clearance process, so that the side effect is easily brought to the human body, and the economic burden of the patient and the workload of medical staff are increased.
In recent years, the anti-thrombus indwelling needle in the prior art has a plurality of patent products of 'positive pressure joint' and 'anti-reflux', but can not prevent thrombus from forming all the time, after the existing indwelling needle is used for completing transfusion, in order to prevent blocking of a transfusion channel, a tube must be flushed by physiological saline, after the blockage of the transfusion channel, the tube needs to be sealed by heparin sodium, and the tube needs to be communicated every 6 to 8 hours, so the workload is very large, in addition, when the traditional indwelling needle is used, a great amount of thrombus can be flushed into blood vessels of a human body during the nursing procedure of the tube, very serious potential hidden dangers are generated, and acute vascular diseases can also be generated, such as red swelling and pain of an injection part of a patient occur, the injury is brought to the patient, and the defect of low medical quality exists; in addition, the above-mentioned nursing procedure requires the expense of the tube-flushing solution, the expense of the tube-sealing solution and the labor cost of nursing, which greatly exceed the price of the indwelling needle itself, and therefore, the medical cost is high.
Disclosure of Invention
the invention aims to provide a thrombus-preventing venous indwelling needle and a thrombus-preventing method thereof, which can locally heat the venous indwelling needle during venous transfusion to locally heat a venous indwelling needle tube and limbs of a patient, thereby improving the functions of blood circulation and tissue metabolism, influencing the coagulation of protein and blood coagulation factors in blood vessels of the patient, further weakening the starting coagulation of platelets, preventing the formation of thrombus, and preventing blood from flowing back into the venous indwelling needle after the venous transfusion is finished to prevent the blood from flowing back.
The technical purpose of the invention is realized by the following technical scheme: a thrombus-preventing venous indwelling needle comprises a needle base, an indwelling hose hermetically connected with the top end of the needle base and a puncture needle penetrating into the indwelling hose from the bottom end of the needle base; the end part of the indwelling hose is positioned in the needle seat and is communicated with the inner cavity of the needle seat; the inner cavity of the needle base is provided with a first rubber sealing plug and a second rubber sealing plug, the first rubber sealing plug is positioned at the middle upper part of the inner cavity of the needle base, and the second rubber sealing plug is positioned at the middle lower part of the inner cavity of the needle base; the first rubber sealing plug and the second rubber sealing plug divide the inner cavity of the needle seat into a transfusion cavity, a positive pressure cavity and a bottom sealing cavity, and a liquid storage cavity is arranged in the positive pressure cavity; the side wall of the needle seat is provided with a first liquid inlet port communicated with the transfusion cavity and a second liquid inlet port communicated with the liquid storage cavity; the first liquid inlet port and the second liquid inlet port are respectively connected with a first liquid guide pipe and a second liquid guide pipe; the end parts of the first liquid guide pipe and the second liquid guide pipe are connected with liquid conveying pipes used for being connected with liquid conveying needles of a liquid conveying device; an indwelling needle temperature rising device is sleeved on the outer wall of the first liquid guide pipe; the bottom end of the outer wall of the needle base is sleeved with a connecting and fixing belt; the end part of the connecting and fixing band is connected with a warming bandage.
by adopting the technical scheme, when the anti-thrombus venous indwelling device is used for carrying out intravenous injection on a patient, the infusion device is connected with the indwelling needle, the puncture needle of the indwelling needle is punctured into the blood vessel of the patient after the puncture position of the patient is disinfected, the indwelling hose of the indwelling needle is brought into the blood vessel of the patient, then the puncture needle is withdrawn, the indwelling needle and the patient are fixed by using the medical adhesive tape, and the patient is subjected to intravenous infusion; in the process of carrying out intravenous infusion on a patient, the temperature rising device of the indwelling needle sleeved with the outer wall of the first catheter is convenient for generating heat to carry out local temperature rising work on the first catheter, so that the temperature of liquid passing through the first catheter is raised, the temperature of the liquid input into the blood vessel of the patient is raised, the blood vessel expansion can be promoted, the blood flow speed is accelerated, the adsorption of protein in the blood vessel to the surface of the indwelling hose positioned in the blood vessel is interfered, and the indwelling hose can be prevented from being blocked due to the formation of thrombus; the temperature-raising bandage is convenient to bind with the limb on the transfusion side of the patient, and the limb of the patient is subjected to local temperature raising, so that the blood circulation and the tissue metabolism function in the limb on the transfusion side of the patient are improved, blood platelets in a blood vessel are weakened to start coagulation, and the formation of thrombus is influenced; when the infusion needs to be stopped, a regulator of the infusion device is closed, the internal hydraulic pressure of the infusion tube is larger than the internal hydraulic pressure of the positive pressure cavity and larger than the internal hydraulic pressure of the indwelling hose, the liquid medicine in the infusion tube flows into the liquid storage cavity of the positive pressure cavity through the second liquid guide tube under the action of the hydraulic pressure, slowly flows into the indwelling hose and continuously presses the intravenous tube until the internal pressure of the intravenous indwelling needle tube is equal to the blood pressure in the vein of the patient, so that the internal pressure at the end part of the indwelling hose of the indwelling needle and the internal pressure in the blood vessel of the patient form a balanced state, and the blood backflow in the blood vessel of the patient can be prevented; through this prevent thrombus vein and keep somewhere needle, can carry out venous transfusion to the patient and keep somewhere the needle and carry out local heating to the vein, make vein keep somewhere needle tubing and patient limbs local heating up to can improve blood circulation and tissue metabolism function, influence the coagulation of the intravascular protein of patient and blood coagulation factor, thereby be convenient for weaken the start blood coagulation of platelet, prevent the formation of thrombus, and can stop blood backward flow to in the vein keeps somewhere the needle after venous transfusion finishes.
The invention is further configured to: the indwelling needle temperature rising device comprises a heat conduction sleeve sleeved with the outer wall of the first liquid guide pipe and a constant temperature rising barrel fixedly sleeved with the outer wall of the heat conduction sleeve; the constant temperature heating cylinder is provided with a temperature display screen and a starting switch.
by adopting the technical scheme, the heat conduction sleeve is convenient for transferring the energy generated by the operation of the constant-temperature heating cylinder; the first liquid guide pipe is convenient to heat through the constant-temperature heating cylinder; the temperature display screen is convenient for displaying the temperature rise of the constant-temperature rise cylinder; the starting and the closing of the temperature rising device of the remaining needle are convenient to control by the starting switch.
The invention is further configured to: the temperature-rising bandage comprises a magic tape bandage connected with the connecting fixing belt and a constant-temperature-rising sheet positioned in the magic tape bandage; the outer wall of the magic tape binding band is provided with a control switch connected with the constant temperature heating piece.
By adopting the technical scheme, the temperature-rising bandage and the limb of the patient can be conveniently connected and fixed by the magic tape bandage; the constant temperature rising piece is convenient for warming the limbs of the patient, thereby promoting the blood circulation in the limbs of the patient; the work of the heating binding band is convenient to control through the control switch.
The invention is further configured to: the end part of the infusion tube is provided with a heparin cap.
Through adopting above-mentioned technical scheme, through the heparin cap, the infusion set of being convenient for is many times, puncture repeatedly and supplies the infusion, simultaneously, is convenient for prevent blood backward flow and anti-coagulation.
the invention is further configured to: the top end of the liquid storage cavity is of a cylindrical structure, the bottom end of the liquid storage cavity is of a round platform structure, the area of the bottom surface of the cylindrical structure at the top end of the liquid storage cavity is smaller than that of the upper bottom surface of the round platform structure at the bottom end of the liquid storage cavity, and the volume of the cylindrical structure at the top end of the liquid storage cavity is 0.3-0.4 times of that of the round platform structure at the bottom end of the liquid storage; the top end of the liquid storage cavity is positioned in the first rubber sealing plug, and the bottom end of the liquid storage cavity is positioned in the second rubber sealing plug.
By adopting the technical scheme, the top end of the liquid storage cavity is of a cylindrical structure, the bottom end of the liquid storage cavity is of a round platform structure, the area of the bottom surface of the cylindrical structure at the top end of the liquid storage cavity is smaller than that of the upper bottom surface of the round platform structure at the bottom end of the liquid storage cavity, and the volume of the cylindrical structure at the top end of the liquid storage cavity is 0.3-0.4 times that of the round platform structure at the bottom end of; the top end of the liquid storage cavity is positioned in the first rubber sealing plug, the bottom end of the liquid storage cavity is positioned in the second rubber sealing plug, and through the design, the blood backflow caused by the fluctuation of the human venous pressure can be effectively reduced, and a good backflow prevention effect is achieved.
The invention is further configured to: the volume of the transfusion cavity is 0.2-0.5 times of the volume of the liquid storage cavity.
By adopting the technical scheme, the volume of the transfusion cavity is designed to be 0.2-0.5 times of the volume of the liquid storage cavity, so that the liquid pressure of the liquid storage cavity is convenient to ensure to be larger than that of the transfusion cavity, and the liquid pressure of the positive pressure cavity can prevent the blood in the blood tube from flowing back to the vein indwelling needle.
The invention is further configured to: the bottom end of the bottom sealing cavity is provided with a plugging block; the bottom end of the puncture needle is fixedly connected with the blocking block; and a needle holding handle for driving the puncture needle to move is arranged on the side wall of the blocking block.
By adopting the technical scheme, the puncture and withdrawal operation of the puncture needle can be conveniently controlled by holding the needle handle.
The invention is further configured to: the first liquid guide pipe and the second liquid guide pipe are sleeved with pipe clamps used for controlling the liquid flow in the first liquid guide pipe and the second liquid guide pipe.
By adopting the technical scheme, the flow of the liquid in the first liquid guide pipe and the second liquid guide pipe can be conveniently controlled by the pipe clamp.
A method for preventing thrombus of a thrombus-preventing venous indwelling needle comprises the following specific steps:
1) Firstly, a transfusion needle of a transfusion device is pricked into a heparin cap at the tail end of a transfusion tube, so that the transfusion device is connected with a thrombus-preventing venous indwelling needle, then an indwelling hose and a puncture needle are all sent into a blood vessel of a patient through a needle holding handle, and then the puncture needle is pulled out, so that a micro needle hole is respectively reserved on a first rubber sealing plug and a second rubber sealing plug by the puncture needle;
2) In the process of carrying out intravenous infusion on a patient, an indwelling needle heating device sleeved on the outer wall of a first catheter of an indwelling needle is used for heating the indwelling needle, a heating bandage is fixed on the limb of the patient 20cm away from a puncture point of a puncture needle, and the limb part of the patient is heated; the temperature rising temperature of the remaining needle temperature rising device is less than 60 ℃, and the temperature rising temperature of the temperature rising bandage is 40-45 ℃; the temperature of the local tissue of the transfusion of the patient and the limb at the transfusion side is raised through the local temperature raising work of the indwelling needle temperature raising device and the temperature raising bandage on the indwelling needle, and the adsorption of protein in the blood vessel of the patient on the surface of the indwelling hose can be interfered;
3) When the transfusion is stopped, the first catheter is clamped by the catheter clamp, the regulator of the transfusion device is closed, the internal hydraulic pressure of the transfusion tube is larger than the internal hydraulic pressure of the positive pressure cavity and larger than the internal hydraulic pressure of the indwelling hose, the liquid medicine in the transfusion tube flows into the liquid storage cavity of the positive pressure cavity through the second catheter under the action of the hydraulic pressure, the bottom end volume of the liquid storage cavity is larger than the top end volume of the liquid storage cavity, the thickness of the second rubber sealing plug is larger than that of the first rubber sealing plug, so that the miniature puncture needle hole on the first rubber sealing plug is expanded under pressure, the liquid medicine slowly flows into the hose, and continues to press the intravenous vessel until the pressure in the intravenous indwelling needle tube is equal to the blood pressure in the vein of a patient, and a.
In conclusion, the invention has the following beneficial effects: the indwelling needle heating device is sleeved with the outer wall of the first catheter, so that energy can be conveniently generated to locally heat the first catheter, the temperature of liquid passing through the first catheter is increased, the temperature of liquid input into a blood vessel of a patient is increased, vasodilatation can be promoted, the blood flow speed is accelerated, intravascular protein is interfered to be adsorbed on the surface of an indwelling hose positioned in the blood vessel, and the indwelling hose can be prevented from being blocked due to thrombus; the temperature-raising bandage is convenient to bind with the limb on the transfusion side of the patient, and the limb of the patient is subjected to local temperature raising, so that the blood circulation and the tissue metabolism function in the limb on the transfusion side of the patient are improved, blood platelets in a blood vessel are weakened to start coagulation, and the formation of thrombus is influenced; when the infusion needs to be stopped, a regulator of the infusion device is closed, the internal hydraulic pressure of the infusion tube is larger than the internal hydraulic pressure of the positive pressure cavity and larger than the internal hydraulic pressure of the indwelling hose, the liquid medicine in the infusion tube flows into the liquid storage cavity of the positive pressure cavity through the second liquid guide tube under the action of the hydraulic pressure, slowly flows into the indwelling hose and continuously presses the intravenous tube until the internal pressure of the intravenous indwelling needle tube is equal to the blood pressure in the vein of the patient, so that the internal pressure at the end part of the indwelling hose of the indwelling needle and the internal pressure in the blood vessel of the patient form a balanced state, and the blood backflow in the blood vessel of the patient can be prevented; through this prevent thrombus vein and keep somewhere needle, can carry out venous transfusion to the patient and keep somewhere the needle and carry out local heating to the vein, make vein keep somewhere needle tubing and patient limbs local heating up to can improve blood circulation and tissue metabolism function, influence the coagulation of the intravascular protein of patient and blood coagulation factor, thereby be convenient for weaken the start blood coagulation of platelet, prevent the formation of thrombus, and can stop blood backward flow to in the vein keeps somewhere the needle after venous transfusion finishes.
Drawings
FIG. 1 is a schematic structural view in example 1 of the present invention;
FIG. 2 is a schematic view showing the structure of an indwelling needle temperature-increasing device in embodiment 1 of the present invention;
Fig. 3 is a schematic view of the structure of the warming strap in embodiment 1 of the present invention.
In the figure: 1. a needle seat; 2. a hose is left; 3. puncturing needle; 4. a first rubber sealing plug; 5. a second rubber sealing plug; 6. a transfusion cavity; 7. a positive pressure chamber; 8. a back cover cavity; 9. a liquid storage cavity; 10. a first liquid inlet port; 11. a second liquid inlet port; 12. a first catheter; 13. a second catheter; 14. a temperature raising device for the indwelling needle; 15. heating and binding; 16. a heat conducting sleeve; 17. a constant temperature heating cylinder; 18. a temperature display screen; 19. starting a switch; 20. connecting a fixing belt; 21. a magic tape; 22. a constant temperature rising sheet; 23. a control switch; 24. a heparin cap; 25. a plugging block; 26. a needle holding handle; 27. a catheter clamp; 28. an infusion tube.
Detailed Description
The present invention is described in further detail below with reference to figures 1-3.
Example 1: a thrombus-preventing venous indwelling needle and a thrombus-preventing method thereof are disclosed, as shown in figures 1, 2 and 3, and comprise a needle base 1, an indwelling hose 2 hermetically connected with the top end of the needle base 1 and a puncture needle 3 penetrating into the indwelling hose 2 from the bottom end of the needle base 1. The end part of the indwelling hose 2 is positioned in the needle base 1 and is communicated with the inner cavity of the needle base 1. A first rubber sealing plug 4 and a second rubber sealing plug 5 are installed in the inner cavity of the needle base 1, the first rubber sealing plug 4 is located on the middle upper portion of the inner cavity of the needle base 1, and the second rubber sealing plug 5 is located on the middle lower portion of the inner cavity of the needle base 1. The first rubber sealing plug 4 and the second rubber sealing plug 5 divide the inner cavity of the needle seat 1 into a transfusion cavity 6, a positive pressure cavity 7 and a back cover cavity 8, and a liquid storage cavity 9 is processed in the positive pressure cavity 7. The side wall of the needle seat 1 is hermetically connected with a first liquid inlet port 10 communicated with the transfusion cavity 6 and a second liquid inlet port 11 communicated with the liquid storage cavity 9. The first inlet port 10 and the second inlet port 11 are respectively connected with a first liquid guide pipe 12 and a second liquid guide pipe 13. An infusion tube 28 for connecting to an infusion needle of an infusion set is connected to the ends of the first catheter 12 and the second catheter 13. An indwelling needle warming device 14 is detachably sleeved on the outer wall of the first liquid guide pipe 12. The bottom end of the outer wall of the needle base 1 is sleeved with a connecting and fixing belt 20. The end of the connecting and fixing band 20 is detachably connected with a warming bandage 15.
In this embodiment, the anti-thrombotic venous indwelling needle is made of a completely transparent material. The indwelling needle warming device 14 is used for warming the outer wall of the first liquid guide tube 12, so that the warmed temperature is transferred to the liquid in the first liquid guide tube 12, and the maximum warming temperature of the indwelling needle warming device 14 is 45 ℃, so as to ensure that the outer wall of the first liquid guide tube 14 is not damaged and the drug effect safety of the drug in the first liquid guide tube 14 is not affected. The warming strap 15 is used for warming the injection side limb of the patient, and the maximum temperature of warming is 40 ℃, so as to ensure that the skin of the limb of the patient is not damaged. When the thrombus-preventing vein indwelling device is used for carrying out intravenous injection on a patient, the infusion device is connected with the indwelling needle, after the puncture position of the patient is disinfected, the puncture needle 3 of the indwelling needle is punctured into the blood vessel of the patient, the indwelling hose 2 of the indwelling needle is brought into the blood vessel of the patient, then the puncture needle 3 is withdrawn, the indwelling needle and the patient are fixed by using the medical adhesive tape, and the patient is subjected to venous infusion. In the in-process of carrying out venous transfusion to the patient, through the needle rising temperature device 14 that keeps somewhere that cup joints with first catheter 12 outer wall, be convenient for produce energy and carry out local intensification work to first catheter 12, thereby make the temperature rise of the liquid through first catheter 12, thereby make the liquid temperature rise in the input patient blood vessel, and can promote the vasodilatation, accelerate blood flow speed, and then disturb the intravascular protein adsorb on the surface that is located the intraductal hose 2 that keeps somewhere, thereby can prevent the formation of thrombus and block up and keep somewhere hose 2. The warming binding band 15 is convenient to bind with the limb at the transfusion side of the patient, and the limb of the patient is locally warmed, so that the blood circulation and the tissue metabolism function in the limb at the transfusion side of the patient are improved, blood platelet in the blood vessel is weakened to start coagulation, and the formation of thrombus is influenced. When the transfusion is required to be stopped, the regulator of the transfusion device is closed, the internal hydraulic pressure of the transfusion tube 28 is larger than the internal hydraulic pressure of the positive pressure cavity 7 and larger than the internal hydraulic pressure of the indwelling hose 2, the liquid medicine in the transfusion tube 28 flows into the liquid storage cavity 9 of the positive pressure cavity 7 through the second liquid guide tube 13 under the action of the hydraulic pressure, the liquid medicine slowly flows into the indwelling hose 2 and continues to press the venous vessel until the pressure in the venous indwelling needle tube is equal to the blood pressure in the vein of the patient, so that the internal pressure at the end part of the indwelling hose 2 of the indwelling needle and the internal pressure in the blood vessel of the patient form a balanced state, and the blood backflow in the blood vessel of. Through this prevent thrombus vein and keep somewhere needle, can carry out venous transfusion to the patient and keep somewhere the needle and carry out local heating to the vein, make vein keep somewhere needle tubing and patient limbs local heating up to can improve blood circulation and tissue metabolism function, influence the coagulation of the intravascular protein of patient and blood coagulation factor, thereby be convenient for weaken the start blood coagulation of platelet, prevent the formation of thrombus, and can stop blood backward flow to in the vein keeps somewhere the needle after venous transfusion finishes.
The indwelling needle warming device 14 comprises a heat conducting sleeve 16 sleeved with the outer wall of the first liquid guide pipe 12 and a constant temperature warming barrel 17 fixedly sleeved with the outer wall of the heat conducting sleeve 16. The constant temperature heating cylinder 17 is provided with a temperature display screen 18 and a starting switch 19.
In the present embodiment, the heat conducting sleeve 14 is made of a heat conducting silica gel material with high temperature resistance and heat conducting property. The constant temperature heating cylinder 17 is an intelligent constant temperature heating device in the prior art. The heat conducting sleeve 16 is convenient for transmitting the temperature raised by the operation of the constant temperature heating cylinder 17. The first liquid guide pipe 12 is convenient to warm up through the constant temperature warming barrel 17. The temperature display screen 18 is convenient for displaying the temperature rise of the constant temperature rise cylinder 17. The starting and the closing of the indwelling needle warming device 14 are conveniently controlled by the starting switch 19.
The warming band 15 includes a velcro tape 21 connected to the connection fixing band 20 and a constant temperature warming sheet 22 located in the velcro tape 21. The outer wall of the magic tape binding band 21 is provided with a control switch 23 connected with the constant temperature heating sheet 22.
In this embodiment, the magic tape 21 is used to facilitate the connection and fixation between the warming bandage 15 and the limb of the patient. The constant temperature warming piece 22 is convenient for warming the limbs of the patient, thereby promoting the blood circulation in the limbs of the patient. The operation of the warming strap 15 is easily controlled by controlling the switch 23.
A heparin cap 24 is mounted on the end of the infusion tube 28.
In this embodiment, the heparin cap 24 facilitates the repeated and repeated puncturing of the infusion device for the infusion operation, and simultaneously, facilitates the prevention of blood backflow and anticoagulation.
The top end of the liquid storage cavity 9 is of a cylindrical structure, the bottom end of the liquid storage cavity 9 is of a circular truncated cone structure, the area of the bottom surface of the cylindrical structure at the top end of the liquid storage cavity 9 is smaller than that of the upper bottom surface of the circular truncated cone structure at the bottom end of the liquid storage cavity 9, and the volume of the cylindrical structure at the top end of the liquid storage cavity 9 is 0.3-0.4 times that of the circular truncated cone structure at the bottom. The top end of the liquid storage cavity 9 is positioned in the first rubber sealing plug 4, and the bottom end of the liquid storage cavity 9 is positioned in the second rubber sealing plug 5.
in this embodiment, the top end of the liquid storage cavity 9 is a cylindrical structure, the bottom end of the liquid storage cavity 9 is a circular truncated cone structure, the area of the bottom surface of the cylindrical structure at the top end of the liquid storage cavity 9 is smaller than the area of the bottom surface of the circular truncated cone structure at the bottom end of the liquid storage cavity 9, and the volume of the cylindrical structure at the top end of the liquid storage cavity 9 is 0.3-0.4 times of the volume of the circular truncated cone structure at the bottom. The top of the liquid storage cavity 9 is positioned in the first rubber sealing plug 4, the bottom of the liquid storage cavity 9 is positioned in the second rubber sealing plug 5, and through the design, the blood backflow caused by the fluctuation of the human venous pressure can be effectively reduced, and a good anti-backflow effect is achieved.
The volume of the transfusion cavity 6 is 0.2-0.5 times of the volume of the liquid storage cavity 9.
in this embodiment, the volume of the infusion chamber 6 is designed to be 0.2-0.5 times of the volume of the liquid storage chamber 9, so that the hydraulic pressure of the liquid storage chamber 9 is greater than that of the infusion chamber 6, and the hydraulic pressure of the positive pressure chamber 7 can prevent the blood in the blood tube from flowing back to the venous indwelling needle.
The bottom end of the bottom sealing cavity 8 is connected with a plugging block 25. The bottom end of the puncture needle 3 is fixedly connected with a blocking block 25. The side wall of the blocking block 25 is fixedly connected with a needle holding handle 26 for driving the puncture needle 3 to move.
In the present embodiment, the needle holder 26 is used to facilitate the operation of controlling the puncture and withdrawal of the puncture needle 3.
The outer walls of the first and second liquid guide tubes 12 and 13 are provided with tube clamps 27 for controlling the flow of liquid in the first and second liquid guide tubes 12 and 13.
In this embodiment, the flow rate of the liquid in the first catheter tube 12 and the second catheter tube 13 is easily controlled by the catheter clamp 27.
Example 2: a method for preventing thrombus of a thrombus-preventing venous indwelling needle comprises the following specific steps:
1) Firstly, the transfusion needle of the transfusion device is pricked into the heparin cap 24 at the tail end of the transfusion tube 28, so that the transfusion device is connected with the thrombus-proof vein remaining needle, then the remaining hose 2 and the puncture needle 3 are all sent into the blood vessel of a patient through the needle holding handle 26, and then the puncture needle 3 is pulled out, so that the puncture needle 3 respectively remains a micro-needle hole on the first rubber sealing plug 4 and the second rubber sealing plug 5.
2) In the process of intravenous infusion of a patient, the temperature of the indwelling needle is raised by the indwelling needle temperature raising device 14 which is sleeved on the outer wall of the first catheter 12 of the indwelling needle, and the temperature raising band 15 is fixed to the limb of the patient 20cm away from the puncture point of the puncture needle 3 to raise the temperature of the limb of the patient. The temperature rising temperature of the remaining needle temperature rising device 14 is less than 45 ℃, and the temperature rising temperature of the temperature rising bandage 15 is 40-45 ℃. The local temperature raising operation of the indwelling needle by the indwelling needle temperature raising device 14 and the temperature raising band 15 raises the temperature of the local tissue of the patient to be infused and the limb on the infusion side, and may interfere with the adsorption of the protein in the patient's blood vessel to the surface of the indwelling hose 2.
3) When the transfusion is stopped, the catheter clamp 27 is used for clamping the first catheter 12, and the regulator of the transfusion device is closed, at the moment, the internal hydraulic pressure of the transfusion tube 28 is larger than the internal hydraulic pressure of the positive pressure cavity 7 and is larger than the internal hydraulic pressure of the indwelling hose 2, under the action of the hydraulic pressure, the liquid medicine in the transfusion tube 28 flows into the liquid storage cavity 9 of the positive pressure cavity 7 through the second catheter 13, and because the volume of the bottom end of the liquid storage cavity 9 is larger than the volume of the top end of the liquid storage cavity 9, and the thickness of the second rubber sealing plug 5 is larger than the thickness of the first rubber sealing plug 4, the micro puncture needle 3 hole on the first rubber sealing plug 4 is pressed and expanded, so that the liquid medicine slowly flows into the indwelling hose 2 and continues to press towards the venous vessel until the pressure in the venous.
The working principle is as follows: when the thrombus-preventing vein indwelling device is used for carrying out intravenous injection on a patient, the infusion device is connected with the indwelling needle, after the puncture position of the patient is disinfected, the puncture needle 3 of the indwelling needle is punctured into the blood vessel of the patient, the indwelling hose 2 of the indwelling needle is brought into the blood vessel of the patient, then the puncture needle 3 is withdrawn, the indwelling needle and the patient are fixed by using the medical adhesive tape, and the patient is subjected to venous infusion. In the process of carrying out venous transfusion to the patient, through the needle rising temperature device 14 that keeps somewhere that cup joints with first catheter 12 outer wall, be convenient for carry out local intensification work to first catheter 12, thereby make the temperature rise of the liquid through first catheter 12, thereby make the liquid temperature in the input patient blood vessel rise, and can promote the vasodilatation, accelerate blood flow speed, and then disturb the surface that absorption in the blood vessel of intravascular protein is on lieing in the hose 2, thereby can prevent the formation of thrombus and block up and keep somewhere hose 2. The warming binding band 15 is convenient to bind with the limb at the transfusion side of the patient, and the limb of the patient is locally warmed, so that the blood circulation and the tissue metabolism function in the limb at the transfusion side of the patient are improved, blood platelet in the blood vessel is weakened to start coagulation, and the formation of thrombus is influenced. When the transfusion is required to be stopped, the regulator of the transfusion device is closed, the internal hydraulic pressure of the transfusion tube 28 is larger than the internal hydraulic pressure of the positive pressure cavity 7 and larger than the internal hydraulic pressure of the indwelling hose 2, the liquid medicine in the transfusion tube 28 flows into the liquid storage cavity 9 of the positive pressure cavity 7 through the second liquid guide tube 13 under the action of the hydraulic pressure, the liquid medicine slowly flows into the indwelling hose 2 and continues to press towards the venous vessel until the pressure in the venous indwelling needle tube is equal to the blood pressure in the vein of the patient, so that the internal pressure at the end part of the indwelling hose 2 of the indwelling needle and the internal pressure in the vessel of the patient form a balanced state, the blood in the vessel of the patient can be prevented from flowing back into the indwelling needle, and. Through this prevent thrombus vein and keep somewhere needle, can carry out venous transfusion to the patient and keep somewhere the needle and carry out local heating to the vein, make vein keep somewhere the needle tubing and patient limbs part be heated to can improve blood circulation and tissue metabolism function, influence the coagulation of the intravascular protein of patient and blood coagulation factor, thereby be convenient for weaken the start coagulation of platelet, prevent the formation of thrombus, and can stop blood backward flow to the vein after venous transfusion finishes and keep somewhere in the needle.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a prevent thrombus vein and keep somewhere needle which characterized by: comprises a needle seat (1), an indwelling hose (2) which is hermetically connected with the top end of the needle seat (1), and a puncture needle (3) which penetrates into the indwelling hose (2) from the bottom end of the needle seat (1); the end part of the indwelling hose (2) is positioned in the needle seat (1) and is communicated with the inner cavity of the needle seat (1); a first rubber sealing plug (4) and a second rubber sealing plug (5) are arranged in the inner cavity of the needle base (1), the first rubber sealing plug (4) is positioned at the middle upper part of the inner cavity of the needle base (1), and the second rubber sealing plug (5) is positioned at the middle lower part of the inner cavity of the needle base (1); the first rubber sealing plug (4) and the second rubber sealing plug (5) divide the inner cavity of the needle seat (1) into a transfusion cavity (6), a positive pressure cavity (7) and a bottom sealing cavity (8), and a liquid storage cavity (9) is arranged in the positive pressure cavity (7); a first liquid inlet port (10) communicated with the transfusion cavity (6) and a second liquid inlet port (11) communicated with the liquid storage cavity (9) are formed in the side wall of the needle seat (1); the first liquid inlet port (10) and the second liquid inlet port (11) are respectively connected with a first liquid guide pipe (12) and a second liquid guide pipe (13); the end parts of the first liquid guide pipe (12) and the second liquid guide pipe (13) are connected with an infusion pipe (28) used for being connected with an infusion needle of an infusion apparatus; an indwelling needle temperature rising device (14) is sleeved on the outer wall of the first liquid guide pipe (12); the bottom end of the outer wall of the needle seat (1) is sleeved with a connecting and fixing belt (20); the end part of the connecting and fixing band (20) is connected with a warming binding band (15).
2. The anti-thrombotic venous indwelling needle according to claim 1, wherein: the indwelling needle temperature rising device (14) comprises a heat conduction sleeve (16) sleeved with the outer wall of the first liquid guide pipe (12) and a constant temperature rising barrel (17) fixedly sleeved with the outer wall of the heat conduction sleeve (16); the constant temperature heating cylinder (17) is provided with a temperature display screen (18) and a starting switch (19).
3. The anti-thrombotic venous indwelling needle according to claim 1, wherein: the temperature-rising bandage (15) comprises a magic tape bandage (21) connected with the connecting fixing band (20) and a constant temperature-rising piece (22) positioned in the magic tape bandage (21); the outer wall of the magic tape (21) is provided with a control switch (23) connected with the constant temperature rising piece (22).
4. The anti-thrombotic venous indwelling needle according to claim 1, wherein: a heparin cap (24) is arranged at the end part of the infusion tube (28).
5. The anti-thrombotic venous indwelling needle according to claim 1, wherein: the top end of the liquid storage cavity (9) is of a cylindrical structure, the bottom end of the liquid storage cavity (9) is of a circular truncated cone structure, the area of the bottom surface of the cylindrical structure at the top end of the liquid storage cavity (9) is smaller than that of the upper bottom surface of the circular truncated cone structure at the bottom end of the liquid storage cavity (9), and the volume of the cylindrical structure at the top end of the liquid storage cavity (9) is 0.3-0.4 times that of the circular truncated cone structure at the bottom end of the liquid storage cavity (; the top end of the liquid storage cavity (9) is positioned in the first rubber sealing plug (4), and the bottom end of the liquid storage cavity (9) is positioned in the second rubber sealing plug (5).
6. The anti-thrombotic venous indwelling needle according to claim 1, wherein: the volume of the transfusion cavity (6) is 0.2-0.5 times of the volume of the liquid storage cavity (9).
7. The anti-thrombotic venous indwelling needle according to claim 1, wherein: a plugging block (25) is arranged at the bottom end of the bottom sealing cavity (8); the bottom end of the puncture needle (3) is fixedly connected with a blocking block (25); the side wall of the blocking block (25) is provided with a needle holding handle (26) for driving the puncture needle (3) to move.
8. The anti-thrombotic venous indwelling needle according to claim 1, wherein: the first catheter (12) and the second catheter (13) are sleeved with a catheter clamp (27) used for controlling the liquid flow in the first catheter (12) and the second catheter (13).
9. A method for preventing thrombus of a thrombus-preventing venous indwelling needle is characterized by comprising the following steps: the method comprises the following specific steps:
1) Firstly, a transfusion needle of a transfusion device is pricked into a heparin cap (24) at the tail end of a transfusion tube (28), the transfusion device is connected with a thrombus-preventing venous indwelling needle, then an indwelling hose (2) and a puncture needle (3) are completely sent into a blood vessel of a patient through a needle holding handle (26), the puncture needle (3) is pulled out, and a micro needle hole is respectively reserved on a first rubber sealing plug (4) and a second rubber sealing plug (5) by the puncture needle (3);
2) in the process of carrying out intravenous infusion on a patient, an indwelling needle temperature rising device (14) sleeved on the outer wall of a first liquid guide pipe (12) of the indwelling needle is used for rising the temperature of the indwelling needle, a temperature rising bandage (15) is fixed on the limb of the patient 20cm away from the puncture point of a puncture needle (3), and the temperature of the limb part of the patient is raised; the temperature rising temperature of the remaining needle temperature rising device (14) is less than 60 ℃, and the temperature rising temperature of the temperature rising bandage (15) is 40-45 ℃; the temperature of local tissues of the transfusion of a patient and the temperature of limbs at the transfusion side are raised through the local temperature raising work of the indwelling needle temperature raising device (14) and the temperature raising bandage (15) on the indwelling needle, and the adsorption of protein in the blood vessel of the patient on the surface of the indwelling hose (2) can be interfered;
3) When the transfusion is stopped, the first catheter (12) is clamped by the catheter clamp (27), and the regulator of the transfusion device is closed, at the moment, the internal hydraulic pressure of the transfusion tube (28) is larger than the internal hydraulic pressure of the positive pressure cavity (7) and larger than the internal hydraulic pressure of the indwelling hose (2), under the action of hydraulic pressure, the liquid medicine in the infusion tube flows into the liquid storage cavity (9) of the positive pressure cavity (7) through the second liquid guide tube (13), because the volume of the bottom end of the liquid storage cavity (9) is larger than the volume of the top end of the liquid storage cavity (9), and the thickness of the second rubber sealing plug (5) is larger than that of the first rubber sealing plug (4), so that the hole of the miniature puncture needle (3) on the first rubber sealing plug (4) is pressed and expanded, and the liquid medicine slowly flows into the indwelling hose (2), and continues to press against the venous vessel until the pressure in the intravenous indwelling needle is equal to the pressure of the blood in the vein of the patient, forming a state of equilibrium.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813052.3A CN110538359A (en) | 2019-08-30 | 2019-08-30 | Anti-thrombus venous indwelling needle and anti-thrombus method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910813052.3A CN110538359A (en) | 2019-08-30 | 2019-08-30 | Anti-thrombus venous indwelling needle and anti-thrombus method thereof |
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| CN110538359A true CN110538359A (en) | 2019-12-06 |
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| CN201910813052.3A Pending CN110538359A (en) | 2019-08-30 | 2019-08-30 | Anti-thrombus venous indwelling needle and anti-thrombus method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569230A (en) * | 2020-06-05 | 2020-08-25 | 河南科技大学第一附属医院 | Central venous catheter implants and uses auxiliary device with function is taken off in antiskid |
| CN113080957A (en) * | 2021-04-09 | 2021-07-09 | 自贡市第一人民医院 | Positive pressure tube sealing joint and blood sampling remaining needle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108211046A (en) * | 2018-01-09 | 2018-06-29 | 韩笑峰 | A kind of preventing thrombosis venous detaining needle and its application method |
| CN208464833U (en) * | 2017-10-31 | 2019-02-05 | 贵阳中医学院第一附属医院 | A kind of remaining needle fixing belt |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208464833U (en) * | 2017-10-31 | 2019-02-05 | 贵阳中医学院第一附属医院 | A kind of remaining needle fixing belt |
| CN108211046A (en) * | 2018-01-09 | 2018-06-29 | 韩笑峰 | A kind of preventing thrombosis venous detaining needle and its application method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569230A (en) * | 2020-06-05 | 2020-08-25 | 河南科技大学第一附属医院 | Central venous catheter implants and uses auxiliary device with function is taken off in antiskid |
| CN113080957A (en) * | 2021-04-09 | 2021-07-09 | 自贡市第一人民医院 | Positive pressure tube sealing joint and blood sampling remaining needle |
| CN113080957B (en) * | 2021-04-09 | 2023-04-14 | 自贡市第一人民医院 | Positive pressure tube sealing joint and blood sampling remaining needle |
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Application publication date: 20191206 |