CN108815613B - Implanted venous transfusion port - Google Patents
Implanted venous transfusion port Download PDFInfo
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- CN108815613B CN108815613B CN201810353243.1A CN201810353243A CN108815613B CN 108815613 B CN108815613 B CN 108815613B CN 201810353243 A CN201810353243 A CN 201810353243A CN 108815613 B CN108815613 B CN 108815613B
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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
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Abstract
The invention discloses an implantable venous transfusion port which can be fixed and can prolong the service life of the port, and the technical scheme is characterized by comprising a central venous catheter, a puncture seat and an external transfusion suite, wherein the puncture seat comprises a seat body, a silica gel puncture partition and a liquid storage cavity, and the external transfusion suite comprises a transfusion tube, a non-injury needle and a fixed butterfly wing; the transfusion port also comprises a magnetic guiding fixing kit for fixing the puncture seat through magnetic attraction, the magnetic guiding fixing kit comprises a coat, a bag body and a magnet, a child magic tape is arranged on the inner surface of the cloth of the coat, a mother magic tape which can be bonded with the child magic tape is arranged on one side surface of the bag body, a rope threading channel with an annular structure is sewn between the child magic tape and the cloth, a plurality of rope threading channels are arranged, and a rope body which can be used for drawing the rope threading channel in along the length direction of the rope threading channel is arranged in the rope threading channel in a penetrating manner; the cross section of the seat body is arranged in a semicircular angle rectangular structure, and at least two ends of the seat body in the length direction are made of metal capable of being attracted by the magnet.
Description
Technical Field
The invention relates to the technical field of medical devices, in particular to an implantable venous transfusion port.
Background
The current implanted venous transfusion port is a newer transfusion pipeline technology, is a completely implanted closed transfusion system embedded in a human body, and provides a long-term venous blood channel for a patient. The system includes a central venous catheter with a device called a puncture hub attached to the catheter tip. Placing the catheter in a large vein of a human body, such as a subclavian vein and an internal jugular vein, by percutaneous puncture by using a minor operation method, wherein the tail end of the catheter reaches a superior vena cava; part of the catheter is buried in subcutaneous tissue, the puncture seat at the other end is kept in the subcutaneous tissue of the chest wall and is sutured and fixed, only a small sutured wound is seen on the appearance of the skin after operation, and a protrusion can be touched on the body surface of a patient after healing and removing stitches.
The fixing of the transfusion port is very important because the transfusion port has a certain mobility, but the puncture seat can move along with the movement of a patient at the subcutaneous tissue because no fixing device for the puncture of the venous transfusion port exists clinically at present, so that certain pain can be brought to the patient, and meanwhile, the puncture seat can be dragged with a central venous catheter due to the movement, and the tube detachment occasionally occurs. Once the tube is taken off, the risk of complication, physical pain and economic loss of the patient are caused. The function of the infusion port is lost due to the falling of the catheter of a patient who is left in the implanted venous infusion port, and the patient suffers from secondary operation pain and occasionally suffers from complications such as liquid extravasation, arrhythmia, thrombosis, pneumothorax and the like.
And the central venous catheter and the puncture seat can be implanted into a body for more than ten years or even longer in principle, and the puncture point is mostly dropped in the middle of the puncture seat in the process of puncturing the puncture seat, so that the long-time use of the silica gel puncture partition is not facilitated, and if the silica gel puncture partition is broken, the function of the infusion port is lost, and the risk of complications of a patient, the physical pain and the economic loss are caused. The pain of the secondary operation and the complications of liquid extravasation, arrhythmia, thrombosis, pneumothorax and the like are occasionally caused.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide an implantable venous transfusion port which can be fixed and can prolong the service life of the port.
In order to achieve the purpose, the invention provides the following technical scheme: an implanted venous transfusion port comprises a central venous catheter, a puncture seat connected to one end of the central venous catheter, and an external transfusion suite capable of being spliced with the puncture seat, wherein the puncture seat comprises a seat body with an upper end opening, a silica gel puncture partition covering the opening at the upper end of the seat body, and a liquid storage cavity positioned in the seat body and communicated with the upper end opening; the external infusion set comprises an infusion tube, a non-invasive needle connected to one end of the infusion tube and a fixed butterfly wing fixed on the non-invasive needle;
the transfusion port further comprises a magnetic guiding fixing kit for fixing the puncture seat through magnetic attraction, wherein the magnetic guiding fixing kit comprises a coat made of cloth, a bag body capable of being fixed on the inner side of the coat in an adhering manner, and a magnet fixed in the bag body, a child magic tape is arranged on the inner surface of the cloth of the coat, a mother magic tape capable of being adhered with the child magic tape is arranged on one side surface of the bag body, fine and soft fibers are densely distributed on one side surface of the child magic tape facing the mother magic tape, and bristles are densely distributed on one side surface of the mother magic tape facing the child magic tape;
the upper garment comprises a garment body and two sleeves, a rope threading channel of an annular structure is sewn between the sub-magic tapes and the fabric, the rope threading channel is provided with a plurality of ropes and is arranged along the length direction of the sleeves and the garment body, the rope body which can be used for drawing the rope threading channel along the length direction of the rope threading channel is arranged in the rope threading channel in a penetrating way, a rope threading opening which is communicated to the rope threading channel is formed in the fabric, and the end part of the rope body can extend out of the rope threading opening;
the cross section of the seat body is in a semicircular angle rectangular structure, the length dimension of the seat body is larger than the width dimension of the seat body, at least two ends of the seat body in the length direction are made of metal capable of being attracted by a magnet, and a titanium coating with good biocompatibility is arranged on the outer side wall of the seat body.
The invention is further configured to: a sealing elastic sheet for preventing blood from overflowing is arranged in the liquid storage cavity, one side edge of the sealing elastic sheet is fixedly connected with one side edge of the seat body in the length direction, and the other side edge of the sealing elastic sheet is abutted against the other side edge of the seat body in the length direction; the sealing elastic sheet is always kept to be abutted and attached to the inner side face of the silica gel puncture partition in a non-stressed state, and in the process that the damage-free needle punctures the silica gel puncture partition, the damage-free needle can be overturned around one side of the sealing elastic sheet fixedly connected with the base body until being communicated with the liquid storage cavity by pushing the sealing elastic sheet.
The invention is further configured to: the connecting pipe is chewed and is used for the clamp to enclose the clamp cover in the central venous catheter outside including the infusion that is used for inserting into central venous catheter, the infusion is chewed and the coaxial setting of clamp cover, the clamp cover encloses into cylindric structure setting by the flexure strip that a plurality of elastic metal made, leaves the deformation clearance that can supply the radial receipts and releases of clamp cover between two adjacent flexure strips, the one end and the pedestal fixed connection of flexure strip, the extending direction of the flexure strip other end and the length direction that the infusion was chewed keep unanimous, and the infusion is chewed and is inserted the in-process in the central venous catheter, and the flexure strip outwards expands until clamp cover on the lateral wall of central venous catheter through the deformation clearance.
The invention is further configured to: the utility model discloses a central authorities ' ductus venosus's lateral wall epirelief is equipped with the buckle piece that is used for with the flexure strip lock joint, be provided with the buckle groove that is used for supplying the buckle piece embedding on the flexure strip, the thickness direction of flexure strip is run through in the buckle groove, and central authorities ' ductus venosus pegs graft into the clamp cover and puts in place back buckle piece embedding buckle inslot.
The invention is further configured to: the buckling groove extends along the length direction of the elastic sheet.
The invention is further configured to: the protective lining is coated on the clamp sleeve and used for preventing the clamp sleeve from scratching the central venous catheter, the protective lining is coated on the inner side wall of the clamp sleeve and extends towards the outer side wall of the clamp sleeve, the protective lining is made of PE materials, and the PE materials comprise the following components in parts by weight:
HDPE: 48 parts of a mixture;
LLDPE: 16 parts of a mixture;
(3-glycidoxypropyl) methyldiethoxysilane: 8 parts of a mixture;
gamma-mercaptopropyltriethoxysilane: 4 parts of a mixture;
poly (4-vinyl pyrimidine): 8 parts of a mixture;
nano zinc oxide: and 2 parts.
The invention is further configured to: the coaxial outer tube and the inner tube that is provided with of one end that the not damaged needle was kept away from to the transfer line, the terminal surface of inner tube is located the outer tube, leave the nipple male inserting groove that is used for supplying the syringe between inner tube and the outer tube, the outer tube is made by hard material to the inner wall port department of outer tube is provided with the down angle, the port department of outer tube is provided with the isolation lid that can cover outer tube port.
The invention is further configured to: the semi-arc surfaces at the two ends of the seat body in the length direction are concavely provided with positioning grooves for positioning and pressing fingers, and the bottom surfaces of the positioning grooves are arranged in an arc structure and are in smooth transition with the semi-arc surfaces.
In conclusion, the invention has the following beneficial effects: the puncture seat is embedded in subcutaneous tissue and can be adsorbed and fixed by a magnetic guiding fixing kit after the wound is healed, the operation steps are as follows, firstly, the jacket is worn, then the rope bodies at the upper side and the lower side of the puncture seat are pulled according to the embedding position of the puncture seat (the embedding positions can be embedded in a plurality of the puncture seat or can be selected according to the specific situation of a patient, usually the embedding positions are selected at the left chest, the right chest and the arms, until the cloth of the jacket can be attached to the body of the patient, the position of the jacket corresponding to the puncture seat is marked, then the rope body at one side is untied, the bag body provided with the magnet is pasted at the marking position of the jacket inner side corresponding to the puncture seat through the magic paste, then the untied rope body is pulled, so that the bag body can be attached to the rope body of the patient, at the moment, the magnet in the bag body is attracted with the seat body, and the position pasted with the bag body is fixed by the rope body, thereby effectively avoiding the puncture seat from moving, not only can avoid the pain brought to the patient due to the movement of the puncture seat, but also greatly improve the connection stability of the puncture seat and the central venous catheter, avoid the occurrence of the tube-off condition and reduce the risk of complications, body pain and economic loss to the patient.
And the no damage needle can fall more puncture points along the length direction of pedestal, thereby avoid the no damage needle to puncture silica gel puncture and separate the middle part that separates repeatedly and lead to the silica gel puncture to separate the strain, be favorable to prolonging the life that the silica gel puncture separated, reduce the risk, the painful and economic loss of health that take place the complication to the patient. Even the seat body of the structure can enable the puncture seat to be communicated with two sets of external infusion sets simultaneously, thereby greatly improving the flexible use degree of the infusion port.
Drawings
FIG. 1 is a schematic view of a connection structure of a central venous catheter and a puncture seat;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is a partial schematic view of the clamp in an expanded state;
FIG. 4 is a cross-sectional view of the piercing hub;
FIG. 5 is a schematic structural view of an external infusion set;
fig. 6 is a schematic structural view of the magnetic attraction fixing kit.
Reference numerals: 1. a central venous catheter; 11. a buckling block; 2. a puncture seat; 21. a base body; 211. positioning a groove; 22. puncturing by silica gel; 23. a liquid storage cavity; 24. a connecting pipe; 241. a transfusion nozzle; 242. a clamp sleeve; 2421. an elastic sheet; 2422. a deformation gap; 2423. a fastening groove; 25. sealing the elastic sheet; 3. is externally connected with an infusion set; 31. a transfusion tube; 311. an outer tube; 312. an inner tube; 313. inserting grooves; 314. a reverse angle; 315. an isolation cover; 32. a non-invasive needle; 33. fixing the butterfly wing; 4. a magnetic attraction fixing kit; 41. a coat; 411. a garment body; 412. sleeves; 413. a rope threading channel; 414. a rope body; 42. a bag body; 43. and a magnet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-6, an implantable venous transfusion port comprises a central venous catheter 1, a puncture seat 2 connected to one end of the central venous catheter 1, and an external transfusion kit 3 capable of being plugged with the puncture seat 2, wherein the puncture seat 2 comprises a seat body 21 with an upper end opening, a silica gel puncture partition 22 covering the opening at the upper end of the seat body 21, and a liquid storage cavity 23 located in the seat body 21 and communicated with the upper end opening, a connecting pipe 24 used for being communicated with the central venous catheter 1 is arranged on the outer side wall of the puncture seat 2, and the connecting pipe 24 is communicated with the liquid storage cavity 23; the external infusion set 3 includes an infusion tube 31, an atraumatic needle 32 connected to one end of the infusion tube 31, and a fixing wing 33 fixed to the atraumatic needle 32.
The transfusion port also comprises a magnetic guiding fixing kit 4 for fixing the puncture seat 2 through magnetic attraction, the magnetic guiding fixing kit 4 comprises a coat 41 made of cloth, a bag body 42 capable of being fixed on the inner side of the coat 41 in an adhering manner, and a magnet 43 fixed in the bag body 42, a child magic tape is arranged on the inner surface of the cloth of the coat 41, a mother magic tape capable of being bonded with the child magic tape is arranged on one side surface of the bag body 42, fine and soft fibers are densely distributed on one side surface of the child magic tape facing the mother magic tape, and calves are densely distributed on one side surface of the mother magic tape facing the child magic tape; after the jacket 41 is worn on the body of the patient, the bag 42 containing the magnet 43 is fixed by the hook and loop fastener, the position of the bag 42 is set corresponding to the position of the puncture seat 2, and the puncture seat 2 can be fixed by the magnet 43.
The upper garment 41 comprises a garment body 411 and two sleeves 412, a rope threading channel 413 of an annular structure is sewn between the hook and loop fastener and the fabric, the rope threading channel 413 is provided with a plurality of ropes and is arranged along the length direction of the sleeves 412 and the garment body 411, a rope body 414 capable of being used for drawing the rope threading channel 413 along the length direction of the rope threading channel 413 penetrates through the rope threading channel 413, a rope threading opening communicated to the rope threading channel 413 is formed in the fabric, and the end part of the rope body 414 can extend out of the rope threading opening; since the upper garment 41 does not necessarily fit the patient, the upper and lower threading passages 413 of the bag 42 can be closed by pulling the string 414, so that the cloth can fit the patient.
The cross section of the seat body 21 is arranged in a semicircular angular rectangular structure, the length dimension of the seat body 21 is larger than the width dimension of the seat body, at least two ends of the seat body 21 in the length direction are made of metal capable of being attracted by the magnet 43, and the outer side wall of the seat body 21 is provided with a titanium coating with good biocompatibility. The atraumatic needle 32 can fall down more puncture points along the length direction of the seat body 21, so that the injury-free needle 32 is prevented from repeatedly puncturing the middle part of the silica gel puncture partition 22 to cause strain of the silica gel puncture partition 22, the service life of the silica gel puncture partition 22 is prolonged, and the risk of complications of a patient, body pain and economic loss are reduced. Even the seat body 21 with the structure can enable the puncture seat 2 to be simultaneously communicated with two sets of external infusion sets 3, thereby greatly improving the flexible use degree of the infusion port. In addition, the titanium coating enables the holder body 21 not to react with subcutaneous tissues under the condition of ensuring the magnet 43 to attract, and the safety and the stability of the puncture holder 2 are improved.
The puncture seat 2 is embedded into subcutaneous tissues and the puncture seat 2 can be adsorbed and fixed through the magnetic guiding fixing kit 4 after the wound is healed, the operation steps are that firstly, the jacket 41 is worn, then the rope 414 at the upper side and the lower side of the puncture seat 2 is pulled according to the embedding position of the puncture seat 2 (the embedding position of the puncture seat 2 can be embedded into a plurality of places or can be selected according to the specific situation of a patient, usually, the positions of the left chest, the right chest and the arms are selected more) until the cloth of the jacket 41 can be attached to the body of the patient, the position of the jacket 41 corresponding to the puncture seat 2 is marked, then the rope 414 at one side is pasted on the inner side of the jacket 41 through the magic paste, the bag body 42 provided with the magnet 43 is pasted on the marking position of the corresponding puncture seat 2, then the unwound rope 414 is pulled, so that the bag body 42 can be attached to the rope body 414 of the patient, at the moment, the magnet 43 in the bag body 42 is attracted with the seat body 21, and the coat 41 pasted with, thereby can effectively avoid puncturing the seat 2 and producing the removal after implanting in subcutaneous tissue, not only can avoid the misery that brings for the patient because of the removal of puncture seat 2, also improve the stability of being connected of puncture seat 2 and central venous catheter 1 greatly, avoid taking off the emergence of the pipe condition, reduce the risk, the painful and economic loss of health that take place the complication to the patient.
The sub-magic tape is located on the inner surface of the cloth of the coat 41, can be made of A-level nylon, and is densely provided with fine and soft fibers, the A-level nylon material is very soft, so that the skin cannot be damaged, and the sub-magic tape can be attached by matching with the main magic tape, so that the coat 41 can be used as close-fitting clothes, the matching bag body 42 can be attached to any position, the use is simple and flexible, and the application range of the magnetic attraction fixing kit 4 can be expanded.
The jacket 41 can be tightly fastened after penetrating through the rope threading channel 413 through the rope 414 and can be closely fixed on the limbs or the trunk of the patient, and the fixing effect of the jacket 41 can be improved by fastening the number of the rope 414 on the two sides of the puncture seat 2 more, so that the jacket 41 is effectively prevented from moving along with the movement of the patient.
A sealing elastic sheet 25 for preventing blood from overflowing is arranged in the liquid storage cavity 23, one side edge of the sealing elastic sheet 25 is fixedly connected with one side edge of the seat body 21 in the length direction, and the other side edge of the sealing elastic sheet 25 is abutted against the other side edge of the seat body 21 in the length direction; the sealing elastic sheet 25 is always kept abutting against and attached to the inner side face of the silica gel puncture partition 22 in a non-stressed state, and in the process that the nondestructive needle 32 punctures the silica gel puncture partition 22, the nondestructive needle 32 can be turned over around one side of the sealing elastic sheet 25 fixedly connected with the seat body 21 by pushing until the sealing elastic sheet is communicated with the liquid storage cavity 23. The puncture seat 2 seals the shell fragment 25 and contradicts the laminating and separates the medial surface at 22 at the silica gel puncture when not using, effectively avoid using because of the silica gel puncture separates the long-time puncture of 22 and leads to the transfusion harbor function to lose because of breaking, and also accessible not damaged needle 32 pushes away sealed shell fragment 25 at the in-process that the silica gel puncture separated 22 of needle puncture when using, can realize the function of transfusion harbor, the life and the leakproofness of puncture seat 2 have been improved greatly to this structure, reduce the risk of taking place the complication to the patient, the health is painful and economic loss.
The connecting pipe 24 comprises an infusion nozzle 241 inserted into the central venous catheter 1 and a clamp sleeve 242 clamped outside the central venous catheter 1, the infusion nozzle 241 and the clamp sleeve 242 are coaxially arranged, the clamp sleeve 242 is arranged in a cylindrical structure formed by encircling a plurality of elastic sheets 2421 made of elastic metal, a deformation gap 2422 for radially retracting and releasing the clamp sleeve 242 is reserved between every two adjacent elastic sheets 2421, one end of each elastic sheet 2421 is fixedly connected with the seat body 21, the extending direction of the other end of each elastic sheet 2421 is consistent with the length direction of the infusion nozzle 241, and in the process of inserting the infusion nozzle 241 into the central venous catheter 1, the elastic sheets 2421 are outwards expanded through the deformation gaps 2422 until the clamp sleeve 242 is clamped on the outer side wall of the central venous catheter 1. The ferrule 242 may be made of a titanium alloy having high strength, low density, good mechanical properties, and good toughness and corrosion resistance. The gap between the infusion nozzle 241 and the clamp sleeve 242 is slightly smaller than the thickness of the tube wall of the central venous catheter 1, so that the central venous catheter 1 can be clamped by the clamp sleeve 242; meanwhile, the arrangement of the deformation gap 2422 enables the clamp sleeve 242 to have elastic deformation capacity of circumferential retraction, so that the clamp sleeve can be clamped on the outer side wall of the central venous catheter 1, the firm connection degree of the central venous catheter 1 and the connecting pipe 24 is improved, and the central venous catheter is prevented from falling off. In addition, a plurality of annular bulges can be arranged on the outer side wall of the infusion nozzle 241, the connection firmness degree of the infusion nozzle 241 and the central venous catheter 1 is further increased, and the phenomenon that the central venous catheter 1 falls off can be effectively avoided by matching with the clamp sleeve 242.
The outer side wall of the central venous catheter 1 is convexly provided with a buckling block 11 for buckling with the elastic sheet 2421, the elastic sheet 2421 is provided with a buckling groove 2423 for embedding the buckling block 11, the buckling groove 2423 penetrates through the thickness direction of the elastic sheet 2421, and the buckling block 11 is embedded into the buckling groove 2423 after the central venous catheter 1 is inserted into the clamping sleeve 242 in place. In the process of connecting the connecting pipe 24 with the central venous catheter 1, the central venous catheter 1 is inserted from the gap between the infusion nozzle 241 and the clamp sleeve 242 until the central venous catheter 1 is inserted into the bottom of the gap, the buckling block 11 is embedded into the buckling groove 2423, and the buckling structure of the buckling block 11 is beneficial to improving the connection firmness degree of the central venous catheter 1 and the clamp sleeve 242, so that the separation of the central venous catheter 1 and the connecting pipe 24 in the use process is avoided.
The locking groove 2423 extends along the length direction of the elastic piece 2421. When the buckling block 11 is embedded into the buckling groove 2423, the buckling block 11 is abutted against one end of the buckling groove 2423 away from the seat body 21 in the length direction, so that the buckling of the buckling block 11 can be realized, and the buckling groove 2423 extends in the length direction of the elastic piece 2421 to increase the elasticity of the elastic piece 2421, so that the elastic clamping force of the elastic piece 2421 for clamping the central venous catheter 1 can be improved, and the central venous catheter 1 is effectively prevented from falling off.
The protective lining is coated on the clamp sleeve 242 to prevent the protective lining from scratching the central venous catheter 1, the protective lining is coated on the inner side wall of the clamp sleeve 242 and extends towards the outer side wall of the clamp sleeve 242, the protective lining is made of PE (polyethylene) materials, and the PE materials have strong plasticity and certain softness, so that the protective lining can be used for coating the clamp sleeve 242, and the clamp sleeve 242 made of metal is prevented from scratching the central venous catheter 1.
The following further illustrates the PE material, which comprises the following components in parts by weight:
HDPE: 48 parts of a mixture;
LLDPE: 16 parts of a mixture;
(3-glycidoxypropyl) methyldiethoxysilane: 8 parts of a mixture;
gamma-mercaptopropyltriethoxysilane: 4 parts of a mixture;
poly (4-vinyl pyrimidine): 8 parts of a mixture;
nano zinc oxide: and 2 parts.
The plastic particles are added into a double-screw extruder according to the proportion, granulated to obtain plastic particles, then ground into powder, and lined on the inner wall of the clamp sleeve 242 through an isostatic pressing method, wherein the isostatic pressing method can enable the protective lining to extend from the inner side wall to the outer side wall of the clamp sleeve 242, so that the edge of the clamp sleeve 242 is prevented from scratching the central venous catheter.
The isostatic pressing method is that the workpiece (steel pipe, elbow, tee joint and other parts), rubber bag, support pipe, PE powder and end cap are sealed and installed and then placed in a closed high pressure kettle capable of bearing pressure of 40 MPa. Increasing the water pressure to 40Mpa, expanding the rubber bag, and tightly pressing the PTFE powder on the inner wall of the workpiece. Because the inner wall and the outer wall of the workpiece in the kettle are both subjected to 40Mpa water pressure, the inner stress and the outer stress are equal and offset, the bearing force of the workpiece is not large and the workpiece is not damaged, so the method is called as an isobaric method.
Comparative example:
the PE material comprises the following components in parts by weight:
HDPE: 48 parts of a mixture;
LLDPE: 16 parts of a mixture;
the plastic particles are added to a twin-screw extruder in the above ratio, granulated to obtain plastic particles, and then ground into powder, which is lined on the inner wall of the collar 242 by an isostatic pressing method.
And (3) detection:
the liner and the inner wall of the collar 242 were tested for peel strength.
Examples peel strengths were: 5.5N/mm;
comparative examples peel strength was: 3N/mm.
The PE material selected by the invention takes HDPE and LLDPE as base materials, and is mixed by different types of PE, so that the extrusion process is more compact when the liner is lined by an equal pressure method, and the peel strength is improved. Meanwhile, (3-glycidoxypropyl) methyldiethoxysilane and poly (4-vinyl pyrimidine) are added as coupling agents, so that the elasticity of PE is not lost, internal active groups can be tightly combined with the clamp sleeve 242, intermolecular force is increased, and the peel strength is greatly improved. The gamma-mercaptopropyltriethoxysilane is added as an active agent, so that the adhesion of the protective lining polymer can be enhanced, and the peel strength is further improved. And gamma-mercaptopropyltriethoxysilane, (3-glycidoxypropyl) methyldiethoxysilane and poly (4-vinyl pyrimidine) can be used as cross-linking agents to enhance the oxidation resistance and corrosion resistance of the ferrule 242, so that the ferrule 242 can be used more stably. The nano zinc oxide is added as a filler, so that the strength of the integral protective lining can be enhanced.
An outer tube 311 and an inner tube 312 are coaxially arranged at one end of the infusion tube 31 far away from the atraumatic needle 32, the end face of the inner tube 312 is positioned in the outer tube 311, an insertion groove 313 for inserting a nipple of a syringe is reserved between the inner tube 312 and the outer tube 311, the outer tube 311 is made of hard materials, an inverted angle 314 is arranged at the port of the inner wall of the outer tube 311, and an isolation cover 315 capable of covering the port of the outer tube 311 is arranged at the port of the outer tube 311. When the infusion tube 31 is connected with the syringe, the outer tube 311 can be held by hand, so that the nipple of the syringe can be conveniently inserted into the insertion groove 313, and the operation mode is convenient and sanitary; the arrangement of the inverted angle 314 enables the insertion groove 313 to be of a reaming structure, which is beneficial to the insertion of the injector; the isolation cover 315 can cover the infusion tube 31 when the infusion tube 31 is not infusing, thereby improving the use sanitation of the infusion tube 31.
The semicircular arc surfaces at the two ends of the seat body 21 in the length direction are concavely provided with positioning grooves 211 for positioning and pressing fingers, and the bottom surfaces of the positioning grooves 211 are arranged in an arc structure and are in smooth transition with the semicircular arc surfaces. When the puncture seat 2 is positioned, the seat body 21 is pressed by the thumb and the forefinger of the non-dominant hand from the two ends of the length direction of the seat body 21, and the fingers are pressed into the positioning grooves 211, so that the seat body 21 can be effectively prevented from swinging, and the seat body 21 is conveniently positioned and fixed. The bottom of the positioning slot 211 is arc-shaped, and the periphery of the positioning slot and the side wall of the seat body 21 are smoothly transited, so that the subcutaneous tissue can be effectively prevented from being scratched by the seat body 21, or pain sensation of a patient can be effectively avoided.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. An implantable venous transfusion port comprises a central venous catheter (1), a puncture seat (2) connected to one end of the central venous catheter (1), and an external transfusion kit (3) capable of being connected with the puncture seat (2) in an inserting mode, wherein the puncture seat (2) comprises a seat body (21) with an upper end opening, a silica gel puncture partition (22) covering an opening at the upper end of the seat body (21), and a liquid storage cavity (23) located in the seat body (21) and communicated with the opening at the upper end, a connecting pipe (24) used for being communicated with the central venous catheter (1) is arranged on the outer side wall of the puncture seat (2), and the connecting pipe (24) is communicated with the liquid storage cavity (23); the external infusion set (3) comprises an infusion tube (31), a non-injury needle (32) connected to one end of the infusion tube (31), and a fixed butterfly wing (33) fixed on the non-injury needle (32);
the method is characterized in that: the transfusion port further comprises a magnetic guiding fixing kit (4) for fixing the puncture seat (2) through magnetic attraction, wherein the magnetic guiding fixing kit (4) comprises a jacket (41) made of cloth, a bag body (42) capable of being fixed on the inner side of the jacket (41) in an adhering mode, and a magnet (43) fixed in the bag body (42), a sub magic tape is arranged on the inner face of the cloth of the jacket (41), a female magic tape capable of being adhered with the sub magic tape is arranged on one side face of the bag body (42), fine and soft fibers are densely distributed on one side face, facing the female magic tape, of the sub magic tape, and bristles are densely distributed on one side face, facing the female magic tape, of the female magic tape;
the coat (41) comprises a coat body (411) and two sleeves (412), a rope threading channel (413) of an annular structure is sewn between the sub magic tape and the cloth, the rope threading channel (413) is provided with a plurality of ropes and is arranged along the length direction of the sleeves (412) and the coat body (411), a rope body (414) capable of being used for drawing the rope threading channel (413) along the length direction is arranged in the rope threading channel (413), a rope threading opening communicated to the inside of the rope threading channel (413) is formed in the cloth, and the end part of the rope body (414) can extend out of the rope threading opening;
the cross section of the seat body (21) is arranged in a semicircular angular rectangular structure, the length dimension of the seat body (21) is larger than the width dimension of the seat body, at least two ends of the seat body (21) in the length direction are made of metal capable of being attracted by a magnet (43), and a titanium coating with good biocompatibility is arranged on the outer side wall of the seat body (21);
a sealing elastic sheet (25) for preventing blood from overflowing is arranged in the liquid storage cavity (23), one side edge of the sealing elastic sheet (25) is fixedly connected with one side edge of the seat body (21) in the length direction, and the other side edge of the sealing elastic sheet (25) is abutted against the other side edge of the seat body (21) in the length direction; the sealing elastic sheet (25) is always kept to be abutted and attached to the inner side face of the silica gel puncture partition (22) in a non-stressed state, and in the process that the nondestructive needle (32) punctures the silica gel puncture partition (22), the nondestructive needle (32) can be overturned around one side of the sealing elastic sheet (25) fixedly connected with the seat body (21) until the sealing elastic sheet is communicated with the liquid storage cavity (23).
2. The implantable port of claim 1, wherein: the connecting pipe (24) comprises an infusion nozzle (241) inserted into the central venous catheter (1) and a clamp sleeve (242) clamped at the outer side of the central venous catheter (1), the infusion nozzle (241) and the clamp sleeve (242) are coaxially arranged, the clamp sleeve (242) is arranged in a cylindrical structure by surrounding elastic pieces (2421) made of a plurality of elastic metals, a deformation gap (2422) for the clamp sleeve (242) to be radially folded and unfolded is reserved between every two adjacent elastic pieces (2421), one end of the elastic sheet (2421) is fixedly connected with the seat body (21), the extending direction of the other end of the elastic sheet (2421) is consistent with the length direction of the infusion nozzle (241), and in the process of inserting the infusion nozzle (241) into the central venous catheter (1), the elastic sheet (2421) expands outwards through the deformation gap (2422) until the clamping sleeve (242) is clamped on the outer side wall of the central venous catheter (1).
3. The implantable port of claim 2, wherein: the central venous catheter is characterized in that a buckling block (11) used for being buckled with an elastic sheet (2421) is convexly arranged on the outer side wall of the central venous catheter (1), a buckling groove (2423) used for being embedded by the buckling block (11) is formed in the elastic sheet (2421), the buckling groove (2423) penetrates through the thickness direction of the elastic sheet (2421), and the central venous catheter (1) is inserted into a clamping sleeve (242) in place and then the buckling block (11) is embedded into the buckling groove (2423).
4. The implantable port of claim 3, wherein: the buckling groove (2423) extends along the length direction of the elastic sheet (2421).
5. The implantable port of claim 2, wherein: the clamp sleeve (242) is coated with a protective lining for preventing the clamp sleeve from cutting the central venous catheter (1), the protective lining is coated on the inner side wall of the clamp sleeve (242) and extends towards the outer side wall of the clamp sleeve (242), the protective lining is made of PE materials, and the PE materials comprise the following components in parts by weight:
HDPE: 48 parts of a mixture;
LLDPE: 16 parts of a mixture;
(3-glycidoxypropyl) methyldiethoxysilane: 8 parts of a mixture;
gamma-mercaptopropyltriethoxysilane: 4 parts of a mixture;
poly (4-vinyl pyrimidine): 8 parts of a mixture;
nano zinc oxide: and 2 parts.
6. The implantable port of claim 1, wherein: the coaxial outer tube (311) and the inner tube (312) that are provided with of one end that no damage needle (32) was kept away from in transfer line (31), the terminal surface of inner tube (312) is located outer tube (311), leave nipple male inserting groove (313) that are used for supplying the syringe between inner tube (312) and outer tube (311), outer tube (311) are made by hard material to the inner wall port department of outer tube (311) is provided with down angle (314), the port department of outer tube (311) is provided with isolation lid (315) that can cover outer tube (311) port.
7. The implantable port of claim 1, wherein: the semi-arc surfaces at two ends of the seat body (21) in the length direction are concavely provided with positioning grooves (211) for positioning and pressing fingers, and the bottom surfaces of the positioning grooves (211) are arranged in an arc structure and are in smooth transition with the semi-arc surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353243.1A CN108815613B (en) | 2018-04-18 | 2018-04-18 | Implanted venous transfusion port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353243.1A CN108815613B (en) | 2018-04-18 | 2018-04-18 | Implanted venous transfusion port |
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| Publication Number | Publication Date |
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| CN108815613A CN108815613A (en) | 2018-11-16 |
| CN108815613B true CN108815613B (en) | 2020-11-03 |
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| CN201810353243.1A Active CN108815613B (en) | 2018-04-18 | 2018-04-18 | Implanted venous transfusion port |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115429968B (en) * | 2022-09-14 | 2023-05-09 | 南方医科大学珠江医院 | Implantable medical device with safety protection function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09625A (en) * | 1995-06-21 | 1997-01-07 | Japan Steel Works Ltd:The | Implant transfuser |
| US7223228B2 (en) * | 2004-05-07 | 2007-05-29 | Gt Urological, Llc | Urethral occlusive assembly for preventing urinary incontinence |
| US7850704B2 (en) * | 2004-09-27 | 2010-12-14 | Theranova, Llc | Method and apparatus for anchoring implants |
| FR2928839B1 (en) * | 2008-03-20 | 2011-04-15 | Cousin Biotech | IMPLANTABLE DEVICE COMPRISING A FEEDING CHAMBER HAVING SELF-SWITCHING FLEXIBLE MEMBRANE |
| MX2010012212A (en) * | 2008-05-08 | 2011-09-27 | Minipumps Llc | Implantable drug-delivery devices, and apparatus and methods for filling the devices. |
| CN104885481B (en) * | 2012-07-09 | 2018-05-29 | Med-El电气医疗器械有限公司 | Electromagnetism bone conduction hearing device |
| CN202774259U (en) * | 2012-08-08 | 2013-03-13 | 刘高明 | Dedicated hospital dress for application and maintenance of implantable venous access port |
| CN203227081U (en) * | 2013-03-14 | 2013-10-09 | 山东威高集团医用高分子制品股份有限公司 | Implantable intravenous administration device |
| US9126010B2 (en) * | 2013-03-14 | 2015-09-08 | Medtronic Xomed, Inc. | Device and method for finding the center and reading the setting of an implantable medical device |
| US10525247B2 (en) * | 2015-08-13 | 2020-01-07 | Medtronic, Inc. | Leak reduction during implantable infusion device refill |
| CN205161974U (en) * | 2015-11-30 | 2016-04-20 | 仇蓉 | Special patient clothing of infusion port patient's collar -bone department |
| CN206007700U (en) * | 2016-06-16 | 2017-03-15 | 谢宗贵 | A kind of full-implantation type venous transfusion port |
| CN116212146A (en) * | 2017-05-26 | 2023-06-06 | 常州市第一人民医院 | Electrocardiograph induction guided implantable chest wall port and application method thereof |
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