Infusion port and puncture auxiliary device thereof

Abstract

The invention discloses an infusion port and a puncture auxiliary device thereof, and relates to the technical field of clinical infusion, the infusion port comprises a port body, and further comprises a silica gel diaphragm fixedly mounted in the port body; the infusion part and the port body are connected into a whole, the whole is called as an infusion port, the infusion part comprises a titanium cavity formed in the port body, and the port body is provided with a guide pipe made of flexible thin plastic materials through a connecting assembly. The infusion port has the advantages that when the infusion port is used for infusion, compression resistance buffering can be conducted on the joint of the port body and the catheter, the influence of port body compression on catheter connection is reduced, meanwhile, the distance between the port body and the catheter can be automatically adjusted according to the body growth condition of a patient, and the probability that the catheter displaces due to tissue growth is reduced; the stability of connection between the port body and the conduit is improved; according to the infusion port puncture auxiliary device, puncture operation can be carried out in a sterilization environment, the infection probability is reduced, in addition, the catheter insertion speed is more stable and uniform, and the probability of damage to the inner wall of a vein is reduced.

Description

Technical Field

[0001] The present invention relates to the field of clinical infusion technology, and in particular to an infusion port and a puncture auxiliary device thereof. Background Art

[0002] An infusion port is a medical device designed for patients who need long-term or repeated intravenous infusions. It is usually used for cancer patients receiving chemotherapy, long-term antibiotic treatment or other patients who need frequent injections of drugs. It consists of a port body and a catheter. The drug is injected into the port body through a butterfly needle, and then the drug is injected into the patient's vein through the catheter. The insertion of a catheter into a vein is called venipuncture, which requires the assistance of special equipment.

[0003] The catheter of the existing infusion port is connected to the injection seat by adhesion. During use, if the connection between the catheter of the infusion port and the injection seat falls off, the liquid in the injection seat will leak out and cannot be injected into the vein. It will also cause the blood in the artery to flow out through the catheter, resulting in poor stability in use. Therefore, the announcement number CN115737978B discloses an implantable arterial infusion port, which includes a one-way valve tube, a catheter connecting tube, a pagoda connector, an infusion catheter, a port baffle, a compression ring and a compression hoop. The one-way valve tube is fixedly mounted on the infusion port base. The one-way valve tube is connected with the diversion cavity, the one-way valve tube is connected and fixedly installed with a catheter connecting tube, the outer end of the catheter connecting tube is provided with a pagoda joint, the infusion catheter is sleeved on the outside of the pagoda joint, the catheter connecting tube is provided with a port baffle surface, the port baffle surface is provided at the end of the pagoda joint, the end of the infusion catheter is tightly attached to the port baffle surface, the outer end of the catheter connecting tube is provided with an external thread, the clamping ring is threadedly sleeved on the catheter connecting tube, a clamping hoop is arranged around the inside of the clamping hoop, and the clamping hoop is tightly attached to the end of the infusion catheter.

[0004] The above-mentioned infusion port squeezes the port of the infusion catheter through the clamp and the port stopper, which can not only ensure that the infusion catheter is firmly installed and does not fall off, but also ensure absolute sealing, avoid leakage of injected liquid, and avoid blood reflux due to the falling off of the infusion catheter, thereby improving the stability of use. However, the infusion port base in the infusion port is buried in the skin. For patients in the developmental stage, the position of the infusion port base will change with the growth of body tissues, which will drive the catheter to move, thereby causing deviation and affecting the normal infusion of the infusion port.

[0005] For the catheter puncture device, the announcement number CN109009347B discloses a puncture needle and a puncture device, which includes a needle rod, a needle tip is provided at the bottom end of the needle rod, a blade is provided on the needle tip, the blade is located inside the side of the needle tip or the blade is located on the side of the needle tip; the puncture device of the puncture needle includes a puncture sleeve sleeved on the puncture needle, the puncture needle is sleeved with a sealing assembly located in the puncture sleeve and detachably connected to the puncture sleeve, the sealing assembly includes a primary seal and a secondary seal, the secondary seal includes a trumpet-shaped trumpet body with a small lower end and a large upper end, the puncture needle passes through the trumpet body and has an interference fit with the lower end of the trumpet body, the upper end of the trumpet body is connected to a horizontally arranged secondary annular portion, the secondary annular portion is provided with a plurality of secondary positioning holes evenly distributed along the circumference of the secondary annular portion, and the puncture sleeve is provided with a secondary positioning column that can pass through the secondary positioning hole.

[0006] When the puncture needle puncture device is used for puncture, the catheter needs to be manually inserted from the puncture needle into the vein. Manual insertion has poor stability and is prone to cause the end of the catheter to deviate, thereby affecting the accuracy of the puncture. At the same time, the catheter will be in direct contact with the air during manual insertion, which is easy to bring in bacteria and cause infection.

[0007] Therefore, a new type of infusion port and its puncture auxiliary device can be used to solve the shortcomings of the prior art. Summary of the invention

[0008] The purpose of the present invention is to solve the problems existing in the prior art and to propose an infusion port and a puncture assisting device thereof.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions: An infusion port and a puncture auxiliary device thereof, comprising a port body and a silicone diaphragm fixedly installed inside the port body; The infusion part is connected to the port body as a whole, which is called the infusion port. The infusion part includes a titanium cavity opened inside the port body, and the port body is equipped with a flexible thin plastic catheter through a connecting component.

[0010] Preferably, the connecting assembly includes a connecting cylinder fixedly installed inside the port body, a through hole is opened inside the port body, the through hole is connected to the titanium cavity and the connecting cylinder, a moving cylinder is slidably installed in the connecting cylinder, the moving cylinder and the catheter are connected by a docking mechanism, and a reset mechanism and a locking mechanism are installed between the moving cylinder and the connecting cylinder.

[0011] Preferably, the docking mechanism comprises a sealing sleeve fixedly mounted on the moving cylinder, a docking sleeve fixedly mounted on the sealing sleeve, a connecting sleeve fixedly mounted on the docking sleeve via a threaded sleeve, a connecting head fixedly mounted on the connecting sleeve, and the catheter is sleeved on the connecting head.

[0012] Preferably, the reset mechanism includes a plurality of slide grooves provided on the inner wall of the connecting cylinder, a plurality of fixed blocks sliding in corresponding slide grooves are fixedly mounted on the movable cylinder, and a reset spring is fixedly mounted between each of the fixed blocks and the corresponding slide groove.

[0013] Preferably, the locking mechanism includes a first rack fixedly mounted on the moving cylinder, a ratchet wheel rotatably mounted on the connecting cylinder, a first gear meshing with the first rack wheel fixedly mounted on the ratchet wheel, a ratchet rod matching with the ratchet wheel rotatably mounted on the connecting cylinder, a third gear fixedly mounted on the ratchet rod, a spring sheet mounted between the third gear and the connecting cylinder for resetting the third gear, a gear three meshing with the third gear rotatably mounted on the connecting cylinder, a rotating shaft rotatably mounted on the connecting cylinder via a one-way damping bearing, a spring coil fixedly mounted between the rotating shaft and the one-way damping bearing, a one-way bearing fixedly mounted on the rotating shaft, and a gear two meshing with gear three fixedly mounted on the one-way bearing; A gear 1 is fixedly mounted on the rotating shaft, a second gear meshing with the gear 1 is rotatably mounted on the connecting tube, a second rack meshing with the second gear is slidably mounted on the connecting tube, a connecting rod is fixedly mounted on the second rack, two elastic telescopic rods are fixedly mounted on the connecting rod, and a rubber block matching the third gear is fixedly mounted on the telescopic ends of the two elastic telescopic rods.

[0014] An infusion port puncture auxiliary device, used for the above-mentioned infusion port, comprises a puncture sleeve and a sterilization cylinder; The catheter storage part includes a sealing member, which is fixedly mounted on the puncture sleeve and communicated with the puncture sleeve. The sealing member is fixedly connected with the sterilization cylinder by snap-fitting. The puncture sleeve is provided with a propulsion and pressurization assembly that matches the catheter. The sterilization cylinder is provided with a clamping and pushing assembly that matches the catheter. The end of the sterilization cylinder is fixedly connected with a puncture needle tube.

[0015] Preferably, a through hole is provided on the sterilization cylinder, and an observation window is fixedly mounted on the through hole for observing the insertion status of the catheter inside the sterilization cylinder.

[0016] Preferably, the propulsion and boosting assembly includes a fixed plate fixed to the end of the puncture sleeve by a threaded connection, a nut is fixedly installed on the fixed plate, a screw is threadedly rotatably installed on the nut, a push plate is rotatably installed on the end of the screw, the push plate is slidably connected to the puncture sleeve, and a through hole matching the screw is opened in the middle of the fixed plate.

[0017] Preferably, the clamping and pushing assembly passes through a plurality of sliding plates slidably mounted on the sterilization cylinder, a mounting plate is fixedly mounted on each of the sliding plates, a plurality of rotating shafts are rotatably mounted on each of the mounting plates, a chain is commonly sleeved between two of the matching rotating shafts, a plurality of clamping blocks made of rubber materials matching with the catheter are fixedly mounted on each of the chains, a toothed disc 2 is fixedly mounted on the corresponding two rotating shafts, a toothed disc 3 meshing with the corresponding two toothed discs 2 is rotatably mounted on each of the mounting plates, and a driving mechanism matching with several of the rotating shafts is mounted on the sterilization cylinder; A threaded ring is rotatably mounted on the sterilization cylinder through a threaded groove, and a plurality of inclined limiting holes are provided on the threaded ring. An insertion rod is rotatably mounted on each sliding plate, and each insertion rod is inserted into a corresponding limiting hole.

[0018] Preferably, the driving mechanism includes a telescopic rod which is rotatably installed on the sterilization cylinder, a toothed disc 1 is fixedly installed on the telescopic rod located outside the sterilization cylinder, a toothed ring which meshes with the toothed disc 1 is rotatably installed on the sterilization cylinder, the telescopic rod located inside the sterilization cylinder is connected to the corresponding rotating shaft through a bevel gear set, and the bevel gear sets are kept relatively still by a connecting frame.

[0019] Compared with the prior art, the present invention has the following advantages: 1. When the infusion port is infused, a connecting tube and a moving tube sliding inside the connecting tube can be provided to provide a buffer between the port body and the catheter, thereby avoiding displacement of the port body due to pressure on the port body, making the connection between the catheter and the port body more secure and preventing the catheter from moving in the vein. At the same time, the locking assembly is used to lock the connecting tube and the moving tube to achieve timed locking of the connecting tube and the moving tube, which is suitable for the tissue growth needs of patients with developmental growth, will not cause tissue strain at the port body, and ensures the stability of the connection between the port body and the catheter.

[0020] 2. When performing puncture, the infusion port puncture auxiliary device places the catheter in the puncture sleeve and the sterilization cylinder, and performs sterilization operations in the sterilization cylinder to achieve the effect of aseptic puncture, with a lower probability of infection and higher safety. In addition, the puncture sleeve and the sterilization cylinder are pressurized by advancing the booster component, so that the pressure in the puncture sleeve and the sterilization cylinder is slightly greater than the venous pressure, which can not only avoid venous blood reflux, but also make the puncture smoother.

[0021] 3. When performing puncture, the infusion port puncture auxiliary device can not only clamp and limit the catheter by setting a chain and a clamp block to ensure that the position of the catheter is located in the center of the puncture needle tube and reduce the probability of catheter deviation, but also drive the catheter to move in the puncture needle tube by the movement of the chain, so as to insert the catheter into the vein. When inserting, only the gear ring needs to be rotated, which has higher stability and more uniform insertion speed, effectively reducing the probability of damage to the inner wall of the vein.

[0022] In summary, this infusion port can provide pressure resistance buffering for the connection between the port body and the catheter during infusion, reducing the impact of port body pressure on the catheter connection, and can also automatically adjust the distance between the port body and the catheter according to the patient's body growth, reducing the probability of displacement of the catheter due to tissue growth, and improving the stability of the connection between the port body and the catheter; the puncture auxiliary device of this infusion port can perform puncture operations in a sterile environment, reducing the probability of infection. In addition, the catheter insertion speed is more stable and uniform, reducing the probability of damage to the inner wall of the vein. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of an infusion port proposed by the present invention; Figure 2 for Figure 1 A schematic detailed view of the plan structure along one of the angles; Figure 3 for Figure 2 Detailed schematic diagram of the three-dimensional structure along the AA section; Figure 4 for Figure 3 Detailed schematic diagram of the exploded structure of the middle conduit and the connecting components; Figure 5 for Figure 4 A schematic detailed view of the plan structure along one of the angles; Figure 6 for Figure 5 Detailed schematic diagram of the three-dimensional structure along the BB section; Figure 7 for Figure 6 A schematic diagram of the enlarged structure of the first rack, the first gear, the second gear and the ratchet wheel; Figure 8 for Figure 7 An enlarged structural schematic detailed diagram of the second rack and its surrounding components; Fig. 9 It is a detailed structural diagram of the infusion port puncture auxiliary device; Fig.10 for Fig. 9 Detailed schematic diagram of the exploded structure; Fig.11 for Fig.10 An enlarged schematic diagram of the structure of the middle propulsion booster assembly; Fig.12 for Fig.10 A schematic diagram of the enlarged structure of the sterilization cylinder and the puncture needle tube; Fig.13 for Fig.12 A schematic detailed view of the plan structure along one of the angles; Fig.14 for Fig.13 Detailed schematic diagram of the three-dimensional structure along the CC section; Fig.15 for Fig.14 An enlarged structural schematic diagram of the middle clamping and pushing assembly; Fig.16 for Fig.15 A schematic detailed view of the plan structure along one of the angles; Fig.17 for Fig.15 Detailed diagram of the structure after removing the sliding plate, the plug rod and the limiting hole; Fig.18 for Fig.17 An enlarged structural schematic detail of the middle mounting plate, chain and clamping block.

[0024] In the figure: 1, port body; 2, catheter; 3, connecting assembly; 4, silicone diaphragm; 5, titanium chamber; 6, connector; 7, connecting sleeve; 8, threaded sleeve; 9, docking sleeve; 10, sealing sleeve; 11, connecting cylinder; 12, moving cylinder; 13, fixed block; 14, reset spring; 15, first rack; 16, first gear; 17, ratchet; 18, second gear; 19, third gear; 20, second rack; 21, gear one; 22, gear two; 23, gear three; 24, one-way damping bearing; 25, spring roll; 26, one-way bearing; 27, rotating shaft; 28, Connecting rod; 29, block; 30, elastic telescopic rod; 31, puncture sleeve; 32, sterilization cylinder; 33, puncture needle tube; 34, propulsion booster assembly; 35, seal; 36, push plate; 37, observation window; 38, clamping and pushing assembly; 39, threaded ring; 40, gear ring; 41, gear disc one; 42, mounting plate; 43, sliding plate; 44, plug rod; 45, limit hole; 46, chain; 47, clamping block; 48, telescopic rod; 49, bevel gear set; 50, rotating shaft; 51, gear disc two; 52, gear disc three; 53, nut; 54, screw rod; 55, connecting frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1: Reference Figure 1-Figure 8 , an infusion port, comprising a port body 1, and also comprising a silicone diaphragm 4 fixedly installed inside the port body 1, the silicone diaphragm 4 has a movable automatic repairing ability, and cooperates with a butterfly needle to pierce the silicone diaphragm 4 during infusion, and has good sealing performance; The infusion part is connected to the port body 1 as a whole, which is called an infusion port. The infusion part includes a titanium cavity 5 opened inside the port body 1. The port body 1 is equipped with a catheter 2 made of flexible thin plastic material through a connecting component 3.

[0027] The butterfly needle pierces the silicone diaphragm 4 and reaches the titanium cavity 5 (titanium cavity 5: a cavity is opened inside the port body 1, and the inner wall of the cavity is plated with titanium to improve corrosion resistance).

[0028] The catheter 2 is made of flexible plastic material: flexible plastic tubes are commonly used in urinary catheters, intravenous tubes, endotracheal tubes and other instruments. The flexible design can better adapt to the physiological curve of the human body, reduce stimulation and discomfort to the patient, and compared with hard metal tubes, flexible tubes are less likely to cause damage to internal tissues, reducing the probability of complications. Flexible thin plastic tubes are highly adaptable and can maintain stable performance within a certain range of temperature, humidity and pressure.

[0029] Compared with metal tubes, flexible thin plastic tubes have significant portability, are light in weight, and are easy to carry and operate.

[0030] The connecting assembly 3 includes a connecting cylinder 11 fixedly installed inside the port body 1. A through hole is opened inside the port body 1, which is connected to the titanium cavity 5 and the connecting cylinder 11. A moving cylinder 12 is slidably installed in the connecting cylinder 11. The moving cylinder 12 is connected to the catheter 2 through a docking mechanism. A reset mechanism and a locking mechanism are installed between the moving cylinder 12 and the connecting cylinder 11.

[0031] The through hole is lower than the titanium cavity 5, so that the medicine in the titanium cavity 5 can smoothly enter the through hole. The ends of the connecting tube 11 and the movable tube 12 are both concavely designed, and the concave is conical, so that the medicine can enter the movable tube 12 from the through hole more smoothly, reduce the infusion pulse, and improve the comfort of infusion.

[0032] The moving cylinder 12 is provided with a protrusion, and the connecting cylinder 11 is provided with a groove matched with the protrusion, so that the moving cylinder 12 can be restricted so that the moving cylinder 12 can only slide inside the connecting cylinder 11 but cannot rotate.

[0033] The docking mechanism includes a sealing sleeve 10 fixedly mounted on the moving cylinder 12, a docking sleeve 9 fixedly mounted on the sealing sleeve 10, a connecting sleeve 7 fixedly mounted on the docking sleeve 9 via a threaded sleeve 8, a connecting head 6 fixedly mounted on the connecting sleeve 7, and the catheter 2 is sleeved on the connecting head 6.

[0034] The butt sleeve 9 is provided with a spiral groove matched with the threaded sleeve 8. The threaded sleeve 8 is rotationally connected with the connecting sleeve 7. A banana sealing ring matched with the butt sleeve 9 is installed inside the threaded sleeve 8. The connecting sleeve 7 is butt-jointed with the connector 6 through threads.

[0035] The connection between the connector 6 and the catheter 2 is designed to be concave-convex. The catheter 2 is sleeved on the concave-convex part. Under the action of the elastic force of the catheter 2 itself, the catheter 2 will be stuck on the connector 6, thereby improving the stability of the connection between the catheter 2 and the connector 6.

[0036] The reset mechanism includes a plurality of slide grooves provided on the inner wall of the connecting cylinder 11 , a plurality of fixed blocks 13 sliding in corresponding slide grooves are fixedly mounted on the moving cylinder 12 , and a reset spring 14 is fixedly mounted between each fixed block 13 and the corresponding slide groove.

[0037] Once the patient falls asleep or raises his arm, the muscle tissue will contract, which will drive the port 1 to move, and the catheter 2 will be inserted into the vein. As time goes by, the vein will automatically repair the catheter 2 hole. At this time, the catheter 2 is connected to the vein as a whole. If the port 1 moves, it will drive the catheter 2 to move, which may cause the repair site to rupture and lead to tissue inflammation.

[0038] The movable catheter 2 is designed here to effectively reduce the displacement of the catheter 2, thereby reducing the tension between the catheter 2 and the vein and reducing the probability of rupture at the automatic repair site.

[0039] Since muscle tissue contraction can automatically reset, the movable cylinder 12 is reset here by the reset spring 14 and the fixed block 13 .

[0040] The locking mechanism includes a first rack 15 fixedly mounted on the moving cylinder 12, a ratchet 17 rotatably mounted on the connecting cylinder 11, a first gear 16 meshing with the first rack 15 fixedly mounted on the ratchet 17, a ratchet rod matched with the ratchet 17 rotatably mounted on the connecting cylinder 11, a third gear 19 fixedly mounted on the ratchet rod, a spring sheet installed between the third gear 19 and the connecting cylinder 11 for resetting the third gear 19, a gear three 23 meshing with the third gear 19 rotatably mounted on the connecting cylinder 11, a rotating shaft 27 rotatably mounted on the connecting cylinder 11 through a one-way damping bearing 24, a spring roll 25 fixedly mounted between the rotating shaft 27 and the one-way damping bearing 24, a one-way bearing 26 fixedly mounted on the rotating shaft 27, and a gear two 22 meshing with the gear three 23 fixedly mounted on the one-way bearing 26 (the function of the one-way bearing 26 is that the third gear 19 will not be driven to rotate when the rotating shaft 27 is reversed); A gear 21 is fixedly mounted on the rotating shaft 27, a second gear 18 meshing with the gear 21 is rotatably mounted on the connecting tube 11, a second rack 20 meshing with the second gear 18 is slidably mounted on the connecting tube 11, a connecting rod 28 is fixedly mounted on the second rack 20, two elastic telescopic rods 30 are fixedly mounted on the connecting rod 28, and a rubber block 29 matching the third gear 19 is fixedly mounted at the telescopic ends of the two elastic telescopic rods 30.

[0041] The ratchet wheel 17 cooperates with the ratchet rod and is an existing component, which will not be described in detail here.

[0042] Since muscle tissue movement is a short-term contraction, and growth is a long-term directional extension, the reset spring 14 alone cannot play a buffering role. At this time, under the tension of the reset spring 14, the patient will feel a pulling sensation, which will cause the muscle tissue between the port body 1 and the catheter 2 to be in a long-term tense state, thereby affecting the normal growth of the muscle tissue in this part. Therefore, during growth, it is necessary to reversely lock the connecting tube 11 and the moving tube 12 so that the moving tube 12 cannot rebound on the connecting tube 11, and keep the moving tube 12 normally reset during short-term muscle tissue contraction such as arm lifting. Therefore, the above-mentioned locking mechanism is used to complete this operation. The specific operation is as follows: When the arm is raised, the moving cylinder 12 is driven to move, and the moving cylinder 12 drives the first rack 15 to move, thereby driving the first gear 16 to rotate, and the rotation of the first gear 16 drives the ratchet 17 fixedly connected thereto to rotate. At this time, the ratchet 17 rotates forward (when the ratchet 17 rotates forward, the ratchet rod cannot limit it, and the forward rotation of the ratchet 17 will drive the ratchet rod to rotate around the central axis of the third gear 19, and when the ratchet 17 is reversed, the ratchet rod will limit it, so that the ratchet 17 cannot be reversed), the ratchet 17 drives the ratchet rod and the third gear 19 to rotate, and the rotation of the third gear 19 drives the gear three 23 to rotate, and the gear three 23 will drive the gear two 22 to rotate through the one-way bearing 26 (at this time, the inner and outer rings of the one-way bearing 26 are locked), and the gear two 22 will drive the rotating shaft 27 to rotate, thereby driving the gear one 21 on the rotating shaft 27 to rotate. When the rotating shaft 27 reels the spring coil 25 (the reeling of the spring coil 25 has a certain resetting elastic force), it also drives the one-way damping bearing 24 to rotate (the one-way damping bearing 24 is an existing component, which has resistance to rotation in one direction and no resistance to rotation in the other direction. At this time, the one-way damping bearing 24 rotates without resistance). The rotation of the gear 1 21 drives the second gear 18 meshing therewith to rotate, thereby driving the second rack 20 to move. The movement of the second rack 20 drives the connecting rod 28 and the stop block 29 to move, so that the stop block 29 (the stop block 29 adopts a trapezoidal design and is made of rubber) is against the teeth on the third gear 19. Under the pressure force, the elastic telescopic rod 30 is compressed, so that the stop block 29 moves and contacts the side of the third gear 19, and the third gear 19 is locked by friction. Lifting arm to reset: under the action of the spring coil 25, the rotating shaft 27 will move in the opposite direction. At this time, under the action of the one-way damping bearing 24, the rotation speed of the rotating shaft 27 will be reduced, so that after the first rack 15 is reset, the third gear 19 is still in a state of being locked by the stop block 29, and cannot be reset under the action of the spring sheet. At this time, the ratchet rod will not produce any resistance to the ratchet 17, and the moving cylinder 12 can be freely moved under the action of the reset spring 14, so as to achieve the purpose of freely resetting the moving cylinder 12 due to short-term muscle tissue contraction. After a short period of muscle contraction, the moving cylinder 12 is reset to its original position, and the stop block 29 is disengaged from the third gear 19. Under the action of the spring sheet, the third gear 19 is reset, so that the ratchet rod is against the ratchet 17, and the ratchet 17 is locked and completely reset (the ratchet rod locks the ratchet 17 after a certain period of time, not immediately after the muscle movement is completed).

[0043] Muscle tissue growth: The same as the above-mentioned arm lifting and resetting steps, except that when the movable cylinder 12 is reset, the position of the movable cylinder 12 is not the original position because the growth is a directional long-term stretching of the muscle tissue. At this time, after the stop block 29 is disengaged from the third gear 19, the ratchet rod limits the ratchet 17. At this time, the reset spring 14 is in a stretched state, but due to the action of the ratchet 17 and the ratchet rod, the movable cylinder 12 will not be driven back to the initial position, and the elastic force on the reset spring 14 is absorbed by the ratchet rod and the ratchet 17, so the patient will not feel a pulling sensation.

[0044] Example 2, reference Figure 1 , Figure 9-Figure 18 , an infusion port puncture auxiliary device, including a puncture sleeve 31, and also including a sterilization cylinder 32, the sterilization cylinder 32 is an existing mechanism, and the catheter 2 can be sterilized in the sterilization cylinder 32; The storage part of the catheter 2 includes a seal 35, which is fixedly mounted on the puncture sleeve 31 and communicated with the puncture sleeve 31. The seal 35 and the sterilization cylinder 32 are fixedly connected by a snap-fit. A card block is fixedly mounted on the seal 35, and a card slot is provided on the sterilization cylinder 32. When docking, the card block is inserted into the card slot and then rotated to complete the locking. This is a common locking structure currently available and will not be elaborated on here or described in detail in the figures.

[0045] The puncture sleeve 31 is provided with a propelling and pressurizing assembly 34 matched with the catheter 2 , the sterilization cylinder 32 is provided with a clamping and pushing assembly 38 matched with the catheter 2 , and the end of the sterilization cylinder 32 is fixedly connected with a puncture needle tube 33 .

[0046] A through hole is provided on the sterilization cylinder 32 , and an observation window 37 is fixedly mounted on the through hole for observing the insertion status of the catheter 2 inside the sterilization cylinder 32 .

[0047] The booster assembly 34 includes a fixed plate fixed to the end of the puncture sleeve 31 by a threaded connection, a nut 53 is fixedly installed on the fixed plate, a screw rod 54 is threadedly rotatably installed on the nut 53, a push plate 36 is rotatably installed on the end of the screw rod 54, the push plate 36 is slidably connected to the puncture sleeve 31, and a through hole matching the screw rod 54 is opened in the middle of the fixed plate.

[0048] Insert the catheter 2 into the puncture sleeve 31 from the side of the puncture sleeve 31 close to the propulsion booster assembly 34, and then insert the push plate 36 into the puncture sleeve 31 (the push plate 36 is similar to a piston, and the pressure on both sides of the push plate 36 will change when pushed). Then, screw the fixed disk onto the puncture sleeve 31, and rotate the screw rod 54, which will drive the push plate 36 to move under the action of the nut 53 to achieve the advancement of the push plate 36. The movement of the push plate 36 will change the pressure in the puncture sleeve 31, making the pressure in the puncture sleeve 31 slightly greater than the pressure in the veins to prevent blood reflux.

[0049] The clamping and pushing assembly 38 penetrates through a plurality of sliding plates 43 slidably mounted on the sterilizing cylinder 32, a mounting plate 42 is fixedly mounted on each sliding plate 43, a plurality of rotating shafts 50 are rotatably mounted on each mounting plate 42, a chain 46 is commonly sleeved between two matching rotating shafts 50, and a plurality of clamping blocks 47 made of rubber material matching the catheter 2 are fixedly mounted on each chain 46; A threaded ring 39 is rotatably mounted on the sterilization cylinder 32 through a threaded groove, and a plurality of inclined limiting holes 45 are provided on the threaded ring 39 . An insertion rod 44 is rotatably mounted on each sliding plate 43 , and each insertion rod 44 is inserted into a corresponding limiting hole 45 .

[0050] Clamping of the catheter 2: After the catheter 2 is inserted into the sterilization cylinder 32, the threaded ring 39 is rotated. The threaded ring 39 moves under the action of the thread groove, and the angle of the threaded ring 39 changes during rotation. At this time, the insertion rod 44 is driven to slide in the limiting hole 45 under the action of the limiting hole 45. Since the insertion rod 44 is restricted by the sliding plate 43, the insertion rod 44 will not rotate but can only move. Therefore, the threaded ring 39 will drive the insertion rod 44 and the sliding plate 43 to slide on the sterilization cylinder 32. The movement of the sliding plate 43 drives the mounting plate 42 to move, thereby driving the chain 46 and the clamping block 47 on the chain 46 to move, so that the clamping block 47 clamps the catheter 2. At this time, the catheter 2 is located in the center of the sterilization cylinder 32, which can reduce the probability of the catheter 2 being offset.

[0051] A second toothed disc 51 is fixedly mounted on each of the two corresponding rotating shafts 50 , a third toothed disc 52 meshing with the corresponding two second toothed discs 51 is rotatably mounted on each mounting plate 42 , and a driving mechanism cooperating with several of the rotating shafts 50 is mounted on the sterilization cylinder 32 .

[0052] The driving mechanism includes a telescopic rod 48 which is rotatably installed on the sterilization cylinder 32, a toothed disc 41 is fixedly installed on the telescopic rod 48 located outside the sterilization cylinder 32, a gear ring 40 which is rotatably installed on the sterilization cylinder 32 and meshes with the toothed disc 41, the telescopic rod 48 located inside the sterilization cylinder 32 is connected to the corresponding rotating shaft 50 through a bevel gear set 49, and the bevel gear sets 49 are kept relatively still by a connecting frame 55.

[0053] Advancing the catheter 2: The mounting plate 42 will move when clamping the catheter 2. Under the action of the connecting frame 55, the mounting plate 42 will drive the bevel gear set 49 to move, thereby driving the telescopic rod 48 to extend and keep the bevel gear set 49 engaged. After clamping, the gear ring 40 is rotated, and the rotation of the gear ring 40 drives the gear disc 1 41 to rotate, thereby driving the telescopic rod 48 to rotate. The telescopic rod 48 drives the rotating shaft 50 fixedly connected to the bevel gear set 49 to rotate through the bevel gear set 49, thereby driving the chain 46 on the rotating shaft 50 to rotate. At this time, another rotating shaft 50 on the chain 46 will drive another chain 46 to rotate in the same direction as the chain 46 through the gear disc 2 51 and the gear disc 3 52. The rotation of the chain 46 will drive the clamping block 47 to move, thereby driving the catheter 2 to move, thereby realizing the advancement operation of the catheter 2.

[0054] The specific operation steps of this device are as follows: Puncture operation: insert the catheter 2 into the puncture sleeve 31 from the side of the puncture sleeve 31 close to the propulsion booster assembly 34, then insert the push plate 36 into the puncture sleeve 31, then screw the fixed disk onto the puncture sleeve 31, rotate the screw rod 54, and the push plate 36 will be driven to move under the action of the nut 53 to achieve the advancement of the push plate 36. The movement of the push plate 36 will change the pressure in the puncture sleeve 31, making the pressure in the puncture sleeve 31 slightly greater than the pressure in the veins to prevent blood reflux.

[0055] When the catheter 2 is inserted into the sterilization cylinder 32, the threaded ring 39 is rotated. The threaded ring 39 moves under the action of the thread groove, and the angle of the threaded ring 39 changes during rotation. At this time, the insertion rod 44 is driven to slide in the limiting hole 45 under the action of the limiting hole 45. Since the insertion rod 44 is restricted by the sliding plate 43, the insertion rod 44 will not rotate but can only move. Therefore, the threaded ring 39 will drive the insertion rod 44 and the sliding plate 43 to slide on the sterilization cylinder 32. The movement of the sliding plate 43 drives the mounting plate 42 to move, thereby driving the chain 46 and the clamping block 47 on the chain 46 to move, so that the clamping block 47 clamps the catheter 2. At this time, the catheter 2 is located at the center of the sterilization cylinder 32.

[0056] After clamping, the gear ring 40 is rotated, and the rotation of the gear ring 40 drives the gear plate 1 41 to rotate, thereby driving the telescopic rod 48 to rotate. The telescopic rod 48 drives the rotating shaft 50 fixedly connected to the bevel gear set 49 to rotate through the bevel gear set 49, thereby driving the chain 46 on the rotating shaft 50 to rotate. At this time, another rotating shaft 50 on the chain 46 will drive another chain 46 to rotate in the same direction as the chain 46 through the gear plate 2 51 and the gear plate 3 52. The rotation of the chain 46 will drive the clamping block 47 to move, thereby driving the catheter 2 to move, thereby realizing the advancement operation of the catheter 2.

[0057] The operation steps of the port body 1 and the catheter 2 to adapt to the growth of muscle tissue and the temporary arm lifting are as follows: after the puncture of the catheter 2 is completed, the catheter 2 is taken out from the puncture needle tube 33, and then put on the connector 6, and the connector 6, the connecting sleeve 7 and the docking sleeve 9 are assembled together to connect the port body 1 and the catheter 2.

[0058] Brief arm lifting: When the arm is lifted, the moving cylinder 12 is driven to move, and the moving cylinder 12 drives the first rack 15 to move, thereby driving the first gear 16 to rotate, and the rotation of the first gear 16 drives the ratchet 17 fixedly connected thereto to rotate, at this time the ratchet 17 rotates forward, and the ratchet 17 drives the ratchet rod and the third gear 19 to rotate, and the rotation of the third gear 19 drives the gear three 23 to rotate, and the gear three 23 will drive the gear two 22 to rotate through the one-way bearing 26, and the gear two 22 will drive the rotating shaft 27 to rotate, thereby driving the gear one 2 on the rotating shaft 27. 1 rotates, at this time, the rotating shaft 27 will reel up the spring coil 25, and also drive the one-way damping bearing 24 to rotate, the rotation of the gear 1 21 drives the second gear 18 meshing therewith to rotate, thereby driving the second rack 20 to move, and the movement of the second rack 20 will drive the connecting rod 28 and the stop block 29 to move, so that the stop block 29 and the teeth on the third gear 19 will be pressed against each other, and under the pressing force, the elastic telescopic rod 30 will be compressed, so that the stop block 29 moves and presses against the side of the third gear 19, and the third gear 19 is locked by friction; Reset: Under the action of the spring coil 25, the rotating shaft 27 will move in the opposite direction. At this time, under the action of the one-way damping bearing 24, the rotation speed of the rotating shaft 27 will be reduced, so that after the first rack 15 is reset, the third gear 19 is still in a state of being locked by the block 29, and cannot be reset under the action of the spring sheet. At this time, the ratchet rod will not produce any resistance to the ratchet 17, and the moving cylinder 12 can be freely moved under the action of the reset spring 14, so as to achieve the purpose of freely resetting the moving cylinder 12 due to short-term muscle tissue contraction. After a short muscle contraction, the moving cylinder 12 is reset to its original position, and the block 29 is disengaged from the third gear 19. Under the action of the spring sheet, the third gear 19 is reset, so that the ratchet rod is against the ratchet 17, and the ratchet 17 is locked and completely reset.

[0059] Muscle tissue growth: The same as the above-mentioned reset step, except that when the movable cylinder 12 is reset, the position of the movable cylinder 12 is not the original position because the growth is a directional long-term stretching of the muscle tissue. At this time, after the stop block 29 is disengaged from the third gear 19, the ratchet rod limits the ratchet 17. At this time, the reset spring 14 is in a stretched state, but due to the action of the ratchet 17 and the ratchet rod, the movable cylinder 12 will not be driven back to the initial position, and the elastic force on the reset spring 14 is absorbed by the ratchet rod and the ratchet 17, so the patient will not feel a pulling sensation.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An infusion port, comprising a port body (1), characterized in that: It also includes a silicone diaphragm (4) fixedly installed inside the port body (1); The infusion part is connected to the port body (1) as a whole, and the whole is called the infusion port. The infusion part comprises a titanium cavity (5) opened inside the port body (1). The port body (1) is equipped with a catheter (2) made of flexible fine plastic material through a connecting component (3).

2. The infusion port according to claim 1, characterized in that: The connection assembly (3) comprises a connection cylinder (11) fixedly mounted inside the port body (1); a through hole is provided inside the port body (1), the through hole is connected to the titanium cavity (5) and the connection cylinder (11); a moving cylinder (12) is slidably mounted inside the connection cylinder (11); the moving cylinder (12) and the conduit (2) are connected via a docking mechanism; a reset mechanism and a locking mechanism are installed between the moving cylinder (12) and the connection cylinder (11).

3. The infusion port according to claim 2, characterized in that: The docking mechanism comprises a sealing sleeve (10) fixedly mounted on a moving cylinder (12), a docking sleeve (9) fixedly mounted on the sealing sleeve (10), a connecting sleeve (7) fixedly mounted on the docking sleeve (9) via a threaded sleeve (8), a connecting head (6) fixedly mounted on the connecting sleeve (7), and the conduit (2) sleeved on the connecting head (6).

4. The infusion port according to claim 2, characterized in that: The reset mechanism comprises a plurality of slide grooves formed on the inner wall of the connecting cylinder (11); a plurality of fixed blocks (13) sliding in corresponding slide grooves are fixedly mounted on the moving cylinder (12); and a reset spring (14) is fixedly mounted between each of the fixed blocks (13) and the corresponding slide groove.

5. The infusion port according to claim 2, characterized in that: The locking mechanism comprises a first rack (15) fixedly mounted on the moving cylinder (12); a ratchet (17) rotatably mounted on the connecting cylinder (11); a first gear (16) meshing with the first rack (15) fixedly mounted on the ratchet (17); a ratchet rod matched with the ratchet (17) rotatably mounted on the connecting cylinder (11); a third gear (19) fixedly mounted on the ratchet rod; a spring sheet is mounted between the third gear (19) and the connecting cylinder (11) for resetting the third gear (19). gear (19), a gear three (23) meshing with the third gear (19) being rotatably mounted on the connecting cylinder (11), a rotating shaft (27) being rotatably mounted on the connecting cylinder (11) via a one-way damping bearing (24), a spring coil (25) being fixedly mounted between the rotating shaft (27) and the one-way damping bearing (24), a one-way bearing (26) being fixedly mounted on the rotating shaft (27), and a gear two (22) meshing with the gear three (23) being fixedly mounted on the one-way bearing (26); A gear 1 (21) is fixedly mounted on the rotating shaft (27); a second gear (18) meshing with the gear 1 (21) is rotatably mounted on the connecting tube (11); a second rack (20) meshing with the second gear (18) is slidably mounted on the connecting tube (11); a connecting rod (28) is fixedly mounted on the second rack (20); two elastic telescopic rods (30) are fixedly mounted on the connecting rod (28); and a rubber stopper (29) matched with the third gear (19) is fixedly mounted at the telescopic ends of the two elastic telescopic rods (30).

6. An infusion port puncture assisting device, used for the infusion port according to any one of claims 1 to 5, comprising a puncture sleeve (31), characterized in that: Also included is a sterilization cartridge (32); The storage portion of the catheter (2) comprises a sealing member (35), wherein the sealing member (35) is fixedly mounted on the puncture sleeve (31) and communicated with the puncture sleeve (31), wherein the sealing member (35) is fixedly engaged with the sterilization cylinder (32), wherein a propulsion and pressurization assembly (34) matching with the catheter (2) is mounted on the puncture sleeve (31), wherein a clamping and pushing assembly (38) matching with the catheter (2) is mounted on the sterilization cylinder (32), and a puncture needle tube (33) is fixedly connected to the end of the sterilization cylinder (32).

7. The infusion port puncture assist device according to claim 6, characterized in that: The sterilization cylinder (32) is provided with a through hole, and an observation window (37) is fixedly mounted on the through hole for observing the insertion status of the catheter (2) inside the sterilization cylinder (32).

8. The infusion port puncture assist device according to claim 6, characterized in that: The propulsion boosting assembly (34) comprises a fixed disk fixed to the end of the puncture sleeve (31) by means of a threaded connection, a nut (53) is fixedly mounted on the fixed disk, a screw rod (54) is threadedly rotatably mounted on the nut (53), a push plate (36) is rotatably mounted on the end of the screw rod (54), the push plate (36) is slidably connected to the puncture sleeve (31), and a through hole matching the screw rod (54) is provided in the middle of the fixed disk.

9. The infusion port puncture assist device according to claim 6, characterized in that: The clamping and pushing assembly (38) penetrates a plurality of sliding plates (43) slidably mounted on the sterilization cylinder (32), each of the sliding plates (43) is fixedly mounted with a mounting plate (42), each of the mounting plates (42) is rotatably mounted with a plurality of rotating shafts (50), a chain (46) is commonly sleeved between two of the matching rotating shafts (50), each of the chains (46) is fixedly mounted with a plurality of clamping blocks (47) made of rubber material matching with the catheter (2), a toothed disc 2 (51) is fixedly mounted on the corresponding two rotating shafts (50), a toothed disc 3 (52) meshing with the corresponding two toothed discs 2 (51) is rotatably mounted on each of the mounting plates (42), and a driving mechanism matching with several of the rotating shafts (50) is mounted on the sterilization cylinder (32); A threaded ring (39) is rotatably mounted on the sterilization cylinder (32) via a threaded groove, and a plurality of inclined limiting holes (45) are provided on the threaded ring (39). An insertion rod (44) is rotatably mounted on each of the sliding plates (43), and each of the insertion rods (44) is inserted into a corresponding limiting hole (45).

10. The infusion port puncture assist device according to claim 9, characterized in that: The driving mechanism comprises a telescopic rod (48) which is rotatably mounted on the sterilization cylinder (32); a toothed disc (41) is fixedly mounted on the telescopic rod (48) located outside the sterilization cylinder (32); a toothed ring (40) which meshes with the toothed disc (41) is rotatably mounted on the sterilization cylinder (32); the telescopic rod (48) located inside the sterilization cylinder (32) is connected to the corresponding rotating shaft (50) via a bevel gear set (49); and the bevel gear sets (49) are kept relatively still via a connecting frame (55).

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