Stem cell introduction device

By designing the infusion mechanism and expansion-type turbulence mechanism of the stem cell delivery device, the problem of mesenchymal stem cell precipitation during intravenous infusion was solved, achieving stem cell suspension and infusion stability, and improving infusion safety and device reliability.

CN121243536AActive Publication Date: 2026-01-02THE FIFTH MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
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Patent Information

Application Number
CN202511706659.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-20
Publication Date
2026-01-02
Estimated Expiration
2045-11-20

AI Technical Summary

Technical Problem

Mesenchymal stem cells tend to precipitate during intravenous infusion, and current technology makes it difficult to maintain their suspension, leading to inconvenience in infusion.

Method used

A stem cell delivery device was designed, comprising a delivery mechanism, a guide sliding docking mechanism, a detachable drive mechanism, an expansion-type turbulence mechanism, and a fixing and anti-detachment mechanism. The detachable drive mechanism drives the expansion-type turbulence mechanism to periodically expand and contract, ensuring the suspension of stem cells, and the fixing and anti-detachment mechanism prevents the device from falling off.

Benefits of technology

It effectively maintains the suspension of mesenchymal stem cells during intravenous infusion, improves infusion safety, prevents device detachment, and ensures the integrity of stem cells and the smooth progress of infusion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of stem cell introduction, and discloses a stem cell introduction device which comprises a conduction mechanism, a guide sliding butt joint mechanism is arranged at the top end of the conduction mechanism, a detachable driving mechanism is arranged at the bottom end of the guide sliding butt joint mechanism, and an expansion type turbulent flow mechanism is arranged at the top end of the guide sliding butt joint mechanism. The surface of the guiding and sliding butt joint mechanism is provided with a fixed anti-falling mechanism, the conveying and guiding mechanism comprises an infusion tube, the guiding and sliding butt joint mechanism comprises an installation head and a lower connection threaded ring, and the installation head is fixedly installed at the top end of the infusion tube. According to the stem cell leading-in device, through the arrangement of the conveying and guiding mechanism, the guiding and sliding butt joint mechanism, the detachable driving mechanism, the expansion type turbulent flow mechanism and the fixed anti-falling mechanism, the detachable driving mechanism can be used for driving the expansion type turbulent flow mechanism to perform periodic slow expansion and contraction at a certain frequency during use, so that turbulent flow of liquid medicine is realized; therefore, the mesenchymal stem cells are kept in a suspension state in the intravenous infusion process.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stem cell introduction, in particular to a stem cell introduction device. BACKGROUND

[0002] Mesenchymal stem cell intravenous infusion is a regenerative medicine therapy, the core of which is to separate and expand mesenchymal stem cells derived from bone marrow, adipose tissue or umbilical cord and the like in vitro, and then return them to the patient's body through intravenous injection. These stem cells are distributed throughout the body through blood circulation, and through their unique immune regulation, anti-inflammatory properties and ability to secrete a variety of beneficial cytokines, they promote the repair and functional recovery of damaged tissues, and are used to treat a variety of diseases, including nervous system diseases, autoimmune diseases, cardiovascular diseases, etc.

[0003] Because the particles of mesenchymal stem cells are relatively large during intravenous infusion, they are prone to sedimentation. In order to ensure that the mesenchymal stem cells remain in a suspended state during intravenous infusion, the drug solution needs to be gently shaken during infusion, which is very inconvenient. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a stem cell introduction device, which solves the problems mentioned in the background.

[0005] The present application provides the following technical scheme: a stem cell introduction device, comprising: a delivery mechanism, the top end of the delivery mechanism is provided with a guide sliding docking mechanism, the bottom end of the guide sliding docking mechanism is provided with a detachable driving mechanism, the top end of the guide sliding docking mechanism is provided with an inflation type turbulence mechanism, the surface of the guide sliding docking mechanism is provided with a fixed anti-dropping mechanism, the delivery mechanism comprises a transfusion tube, the guide sliding docking mechanism comprises a mounting head and a lower threaded ring, the mounting head is fixedly installed at the top end of the transfusion tube, the lower threaded ring is fixedly connected to the inner wall at the bottom end of the mounting head, the detachable driving mechanism comprises a threaded head docking shell, a turbulence driving motor and a threaded rod, the threaded head docking shell is threadedly connected inside the lower threaded ring, the turbulence driving motor is fixedly installed inside the threaded head docking shell, the threaded rod is fixedly installed at the output end of the turbulence driving motor through a shaft coupling, the inflation type turbulence mechanism comprises a blockage guide head, a threaded cylinder and a rubber expansion capsule, the blockage guide head is located at the top end of the mounting head, the threaded cylinder is fixedly inserted into the bottom of the blockage guide head, and the inner wall of the threaded cylinder is threadedly connected to the surface of the threaded rod, the rubber expansion capsule is fixedly connected between the blockage guide head and the mounting head, and nitrogen is filled between the blockage guide head, the mounting head and the rubber expansion capsule, the fixed anti-dropping mechanism comprises an extension ear, and the extension ear is integrally provided on the surface of the mounting head.

[0006] Preferably, the delivery mechanism further comprises a constant pressure air inlet pipe, an air filter, a drip cup, a flow regulator, an extension hose and a puncture needle, the constant pressure air inlet pipe is fixedly installed on the surface of the mounting head, the air filter is fixedly installed on the free end of the constant pressure air inlet pipe, the drip cup is fixedly installed inside the infusion tube, the flow regulator is movably installed on the surface of the infusion tube, the extension hose is fixedly installed at the bottom end of the infusion tube, and the puncture needle is fixedly installed at the bottom end of the extension hose.

[0007] Preferably, the delivery mechanism further comprises a support sleeve, a buffer sleeve, a bandage, a male magic tape and a female magic tape, the support sleeve is fixedly sleeved on the surface of the infusion tube, the buffer sleeve is fixedly sleeved on the surface of the support sleeve, the bandage is integrally provided on the surface of the buffer sleeve, and the male magic tape and the female magic tape are fixedly installed on the surface of the bandage.

[0008] Preferably, the delivery mechanism further comprises a support sleeve, a buffer sleeve, a bandage, a male magic tape and a female magic tape, the support sleeve is fixedly sleeved on the surface of the infusion tube, the buffer sleeve is fixedly sleeved on the surface of the support sleeve, the bandage is integrally provided on the surface of the buffer sleeve, and the male magic tape and the female magic tape are fixedly installed on the surface of the bandage.

[0009] Preferably, the delivery mechanism further comprises a support sleeve, a buffer sleeve, a bandage, a male magic tape and a female magic tape, the support sleeve is fixedly sleeved on the surface of the infusion tube, the buffer sleeve is fixedly sleeved on the surface of the support sleeve, the bandage is integrally provided on the surface of the buffer sleeve, and the male magic tape and the female magic tape are fixedly installed on the surface of the bandage.

[0010] Preferably, the delivery mechanism further comprises a support sleeve, a buffer sleeve, a bandage, a male magic tape and a female magic tape, the support sleeve is fixedly sleeved on the surface of the infusion tube, the buffer sleeve is fixedly sleeved on the surface of the support sleeve, the bandage is integrally provided on the surface of the buffer sleeve, and the male magic tape and the female magic tape are fixedly installed on the surface of the bandage.

[0011] Preferably, the delivery mechanism further comprises a support sleeve, a buffer sleeve, a bandage, a male magic tape and a female magic tape, the support sleeve is fixedly sleeved on the surface of the infusion tube, the buffer sleeve is fixedly sleeved on the surface of the support sleeve, the bandage is integrally provided on the surface of the buffer sleeve, and the male magic tape and the female magic tape are fixedly installed on the surface of the bandage.

[0012] Preferably, the delivery mechanism further comprises a support sleeve, a buffer sleeve, a bandage, a male magic tape and a female magic tape, the support sleeve is fixedly sleeved on the surface of the infusion tube, the buffer sleeve is fixedly sleeved on the surface of the support sleeve, the bandage is integrally provided on the surface of the buffer sleeve, and the male magic tape and the female magic tape are fixedly installed on the surface of the bandage.

[0013] Preferably, the inflation type turbulence mechanism further comprises a limiting sliding head and a guide sliding groove, the limiting sliding head is integrally arranged at one end of the threaded cylinder, and the surface of the limiting sliding head is in sliding connection with the inner wall of the guide cylinder, the guide sliding groove is inlaidly arranged on the surface of the limiting sliding head, and the inner wall of the guide sliding groove is in sliding connection with the surface of the guide strip.

[0014] Preferably, the fixed anti-dropping mechanism further comprises two rotating frames, and the two rotating frames are rotatably connected to the surface of the extension ear, and the rubber ring is fixedly connected between the two rotating frames.

[0015] Compared with the prior art, the present application has the following beneficial effects: The stem cell introduction device can utilize the detachable driving mechanism to drive the inflation type turbulence mechanism to periodically and slowly expand and contract at a certain frequency to realize turbulence of the liquid medicine, so that the mesenchymal stem cells can maintain a suspended state during intravenous infusion.

[0016] The stem cell introduction device can realize basic infusion function through the infusion tube, and can also utilize the support sleeve (and the bandage to fix the lower end of the infusion tube to the limb, so as to avoid the infusion tube from being easily torn and pulled out when the infusion tube is pulled, thereby improving the safety.

[0017] The stem cell introduction device can provide connection and bearing of various mechanisms during use, and can also utilize the support spring as protection and isolation of the rubber expansion bladder during puncture, so as to avoid the rubber expansion bladder from being stuck during puncture, and can also expand the support spring after the rubber expansion bladder enters the infusion bottle, so as to avoid blocking the expansion of the rubber expansion bladder, and can also ensure that the support spring is smoothly contracted when the mounting head is pulled out, so as to form protection and reset again when pulled out.

[0018] The stem cell introduction device can utilize the control module to control the turbulence driving motor to provide a positive and negative rotation power source, so as to ensure that the rubber expansion bladder expands and contracts through the rotation of the threaded rod, and also facilitates the disassembly and assembly of the detachable driving mechanism through the threaded head butt joint shell, and facilitates the recycling of the detachable driving mechanism when necessary.

[0019] The stem cell introduction device, by setting the broken plug guide head, threaded cylinder, rubber expansion capsule, broken plug cone head, card ring groove, limit sliding head and guide sliding groove, can use the broken plug cone head auxiliary device to pierce the bottle plug during use, and realize the spoiler through the expansion and contraction of the rubber expansion capsule, which ensures that there is no large shear force during spoiler, and at the same time, the expansion of the rubber expansion capsule is realized through the depression of the broken plug guide head, which ensures that the rubber expansion capsule and the broken plug cone head form a space allowance during expansion and contraction, avoids the formation of large pressure difference in the infusion bottle, thereby maximizing the integrity of mesenchymal stem cells, and at the same time, the nitrogen filling in the rubber expansion capsule can ensure that no toxic gas leakage occurs when the device is damaged, thereby ensuring safety.

[0020] The stem cell introduction device, by setting the extension ear, rotating frame and rubber ring, can ensure that the device is stably fixed on the surface of the infusion bottle through the rotating frame and rubber ring during infusion, and avoid easy falling off of the device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure of the present application is shown in the figure; Figure 2 The structure of the present application is shown in the figure; Figure 3 The structure of the present application is shown in the figure; Figure 4 The structure of the present application is shown in the figure; Figure 5 The structure of the present application is shown in the figure; Figure 6 The structure of the present application is shown in the figure; Figure 7 The structure of the present application is shown in the figure; Figure 8 The structure of the present application is shown in the figure; Figure 9 The structure of the present application is shown in the figure.

[0022] In the figure: 101 infusion tube; 102 constant pressure air inlet tube; 103 air filter; 104 drip chamber; 105 flow regulator; 106 extension hose; 107 puncture needle; 108 support sleeve; 109 buffer sleeve; 110 bandage; 111 male magic tape; 112 female magic tape; 201 mounting head; 202 lower threaded ring; 203 infusion channel; 204 air inlet channel; 205 stop ring; 206 clamping ring; 207 support spring; 208 flexible slot; 209 guide cylinder; 210 sliding seal ring; 211 guide strip; 301 screw head butt joint shell; 302 turbulence driving motor; 303 threaded rod; 304 battery; 305 control module; 306 anti-skid sleeve; 401 plug guide head; 402 threaded cylinder; 403 rubber expansion bladder; 404 plug cone head; 405 card ring slot; 406 limit sliding head; 407 guide sliding slot; 501 extension ear; 502 rotating frame; 503 rubber ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0024] Please refer to Figures 1-9The utility model provides a kind of stem cell introduction device, comprising: delivery mechanism, the top of delivery mechanism is provided with guide sliding docking mechanism, the bottom of guide sliding docking mechanism is provided with detachable driving mechanism, the top of guide sliding docking mechanism is provided with expansion type turbulence mechanism, the surface of guide sliding docking mechanism is provided with fixed anti-off mechanism, delivery mechanism includes infusion tube 101, guide sliding docking mechanism includes mounting head 201 and lower threaded ring 202, mounting head 201 is fixedly installed at the top of infusion tube 101, lower threaded ring 202 is fixedly connected in the inner wall of the bottom of mounting head 201, detachable driving mechanism includes screw head docking shell 301, turbulence drive motor 302 and threaded rod 303, screw head docking shell 301 is screw-connected in the inside of lower threaded ring 202, turbulence drive motor 302 is fixedly installed in the inside of screw head docking shell 301, threaded rod 303 is fixedly installed in the output of turbulence drive motor 302 by shaft coupling, expansion type turbulence mechanism includes broken plug guide head 401, threaded cylinder 402 and rubber expansion capsule 403, broken plug guide head 401 is located at the top of mounting head 201, threaded cylinder 402 is fixedly inserted in the bottom of broken plug guide head 401, and the inner wall of threaded cylinder 402 is screw-connected with the surface of threaded rod 303, rubber expansion capsule 403 is fixedly connected between broken plug guide head 401 and mounting head 201, and broken plug guide head 401 and mounting head 201 are filled with nitrogen between rubber expansion capsule 403, fixed anti-off mechanism includes extension ear 501, extension ear 501 is integrally provided on the surface of mounting head 201, by the delivery mechanism, guide sliding docking mechanism, detachable driving mechanism, expansion type turbulence mechanism and fixed anti-off mechanism that setting, can be periodically slowly expanded and contracted at certain frequency using detachable driving mechanism to drive expansion type turbulence mechanism to realize turbulence to liquid medicine when using, to ensure that mesenchymal stem cells remain in suspension during intravenous infusion.

[0025] Wherein; delivery mechanism further includes constant pressure inlet pipe 102, air filter 103, drop funnel 104, flow regulator 105, extension hose 106 and puncture needle 107, constant pressure inlet pipe 102 is fixedly installed on the surface of mounting head 201, air filter 103 is fixedly installed at the free end of constant pressure inlet pipe 102, drop funnel 104 is fixedly installed in the inside of infusion tube 101, flow regulator 105 is movably installed on the surface of infusion tube 101, extension hose 106 is fixedly installed at the bottom end of infusion tube 101, puncture needle 107 is fixedly installed at the bottom end of extension hose 106.

[0026] Wherein; the guide mechanism further comprises a support sleeve 108, a buffer sleeve 109, a strap 110, a male magic tape 111 and a female magic tape 112, the support sleeve 108 is fixedly sleeved on the surface of the infusion tube 101, the buffer sleeve 109 is fixedly sleeved on the surface of the support sleeve 108, the strap 110 is integrally arranged on the surface of the buffer sleeve 109, the male magic tape 111 and the female magic tape 112 are fixedly installed on the surface of the strap 110, the infusion tube 101, the constant-pressure air inlet tube 102, the air filter 103, the drop funnel 104, the flow regulator 105, the extension hose 106, the puncture needle 107, the support sleeve 108, the buffer sleeve 109, the strap 110, the male magic tape 111 and the female magic tape 112 are arranged, the basic infusion function can be realized through the infusion tube 101, the lower end of the infusion tube 101 and the limbs can be fixed by the support sleeve 108 and the strap 110, the puncture needle 107 is prevented from being easily torn off when the infusion tube 101 is dragged, and the safety is improved.

[0027] Wherein; the guide sliding docking mechanism further comprises an infusion channel 203, an air inlet channel 204, a stop ring 205 and a clamping ring 206, the infusion channel 203 and the air inlet channel 204 are both provided on the surface of the mounting head 201, the mounting head 201 is fixedly connected with the infusion tube 101 through the infusion channel 203, the mounting head 201 is fixedly connected with the constant-pressure air inlet tube 102 through the air inlet channel 204, the top end of the infusion channel 203 is lower than the top end of the air inlet channel 204, and the stop ring 205 and the clamping ring 206 are integrally arranged on the surface of the mounting head 201.

[0028] Wherein; the guide sliding docking mechanism further comprises a support spring 207 and a flexible groove 208, the number of the support spring 207 is multiple, the multiple support springs 207 are integrally arranged at the top end of the mounting head 201, the bottom of the multiple support springs 207 has an elastic tendency outward, the rubber expansion and contraction bag 403 is located between the multiple support springs 207, and the flexible groove 208 is embeddedly arranged at the bottom end of the support spring 207.

[0029] The guide and slide butt joint mechanism further comprises a guide position cylinder 209, a slide sealing ring 210 and a guide position strip 211. The guide position cylinder 209 is fixedly inserted in the inside of the mounting head 201. The slide sealing ring 210 is fixedly connected to the inside of the guide position cylinder 209. The guide position strip 211 is integrally arranged on the inner wall of the guide position cylinder 209. The surface of the slide sealing ring 210 is slidably connected to the surface of the threaded cylinder 402. The mounting head 201, the lower joint threaded ring 202, the infusion channel 203, the air inlet channel 204, the stop ring 205, the clamping ring 206, the supporting spring 207, the flexible groove 208, the guide position cylinder 209, the slide sealing ring 210 and the guide position strip 211 can provide the connection and bearing of each mechanism during use. The supporting spring 207 can be used as protection and isolation of the rubber expansion bladder 403 during puncture. The rubber expansion bladder 403 is prevented from being punctured. The supporting spring 207 can be expanded after the rubber expansion bladder 403 enters the infusion bottle. The expansion of the rubber expansion bladder 403 is prevented. The supporting spring 207 can be smoothly retracted when the mounting head 201 is pulled out. The protection and retraction are provided again during pulling out.

[0030] The detachable driving mechanism further comprises a battery 304, a control module 305 and an anti-skid sleeve 306. The battery 304 and the control module 305 are fixedly installed in the inside of the screw head butt joint shell 301. The battery 304 and the control module 305 are electrically connected to the spoiler driving motor 302. The anti-skid sleeve 306 is fixedly sleeved on the surface of the screw head butt joint shell 301.

[0031] The expansion type spoiler mechanism further comprises a plug cone head 404 and a card ring groove 405. The plug cone head 404 is integrally arranged at the top end of the plug guide head 401. The card ring groove 405 is embeddedly arranged on the surface of the plug guide head 401. The plug guide head 401 is clamped with the supporting spring 207 through the card ring groove 405. The screw head butt joint shell 301, the spoiler driving motor 302, the threaded rod 303, the battery 304, the control module 305 and the anti-skid sleeve 306 can provide a positive and negative rotation power source through the control module 305 controlling the spoiler driving motor 302. The rotation of the threaded rod 303 drives the rubber expansion bladder 403 to expand and contract. The screw head butt joint shell 301 facilitates the disassembly and assembly of the detachable driving mechanism. The detachable driving mechanism can be recycled when necessary.

[0032] The expansion type turbulence mechanism further comprises a limiting sliding head 406 and a guide sliding groove 407. The limiting sliding head 406 is integrally arranged at one end of the threaded cylinder 402, and the surface of the limiting sliding head 406 is slidably connected with the inner wall of the guide cylinder 209. The guide sliding groove 407 is embeddedly arranged on the surface of the limiting sliding head 406, and the inner wall of the guide sliding groove 407 is slidably connected with the surface of the guide strip 211. The clog guide head 401, the threaded cylinder 402, the rubber expansion capsule 403, the clog cone head 404, the card ring groove 405, the limiting sliding head 406 and the guide sliding groove 407 can be used to pierce the bottle cap with the aid of the clog cone head 404 during use, and the rubber expansion capsule 403 is expanded to realize turbulence, so that a large shear force is not formed during turbulence. The expansion of the rubber expansion capsule 403 is realized by the downward pressing of the clog guide head 401, so that the rubber expansion capsule 403 and the clog cone head 404 form a complementary space allowance during expansion, avoiding a large pressure difference in the infusion bottle, thereby maximizing the integrity of mesenchymal stem cells. The nitrogen filled in the rubber expansion capsule 403 can prevent toxic gas leakage when the device is damaged, thereby ensuring safety.

[0033] The fixing anti-dropping mechanism further comprises a rotating frame 502 and a rubber ring 503. The number of the rotating frame 502 is two, and the two rotating frames 502 are both rotatably connected with the surface of the extension ear 501. The rubber ring 503 is fixedly connected between the two rotating frames 502. The extension ear 501, the rotating frame 502 and the rubber ring 503 can be used to stably fix the device on the surface of the infusion bottle during infusion, so that the device is not easily dropped.

[0034] Working principle: During use, the control module 305 controls the turbulence driving motor 302 to start, the turbulence driving motor 302 drives the threaded rod 303 to slowly rotate to ensure that it is screwed into the threaded cylinder 402 and then turned off, and then the threaded head is twisted to connect the shell 301 to the inside of the lower threaded ring 202. The clog guide head 401 and the mounting head 201 are inserted into the infusion bottle through the clog cone head 404. Due to the wrapping of the supporting spring piece 207, the rubber expansion capsule 403 can be smoothly inserted until the detent ring 206 passes through the bottle cap. Then the rubber ring 503 is sleeved on the recess of the infusion bottle mouth by rotating the rotating frame 502 to realize fixation. Then the control module 305 controls the turbulence driving motor 302 to start, and the turbulence driving motor 302 drives the threaded rod 303 to slowly rotate. When the threaded rod 303 rotates, the threaded cylinder 402 is pushed, so that the clog guide head 401 stretches upward against the elastic tension of the rubber expansion capsule 403, so that the supporting spring piece 207 is pulled out of the card ring groove 405. After the supporting spring piece 207 is pulled out, it is opened due to its own elasticity, so that the rubber expansion capsule 403 is exposed; Then the medical staff manually shake the infusion bottle gently once the liquid medicine, so that the precipitate of the liquid medicine is eliminated, and then the control module 305 controls the spoiler drive motor 302 to periodically and slowly reverse, the spoiler drive motor 302 rotates to push the threaded cylinder 402 to periodically stretch and shrink along the guide bar 211, so as to drive the plug guide head 401 to periodically rise and fall, the plug guide head 401 is pressed when it is lowered, so that the rubber expansion and contraction balloon 403 slowly expands, the plug guide head 401 rises to form negative pressure to pull the rubber expansion and contraction balloon 403 to slowly shrink, so as to realize the spoiler through the expansion and contraction of the rubber expansion and contraction balloon 403, avoid the precipitation of the liquid medicine, at the same time, the space left in the liquid medicine by the contraction of the plug cone head 404 is just filled by the expansion of the rubber expansion and contraction balloon 403, and the space obtained in the liquid medicine by the extension of the plug cone head 404 is released by the contraction of the rubber expansion and contraction balloon 403, so as to ensure the internal pressure balance of the liquid medicine and avoid its disturbance to the infusion tube 101; When changing the liquid, the control module 305 controls the spoiler drive motor 302 to start, so that the rubber expansion and contraction balloon 403 reaches the contraction state, then the expansion of the rotating frame 502 is taken out from the recess, then the installation head 201 and the plug guide head 401 are slowly pulled out, when pulling out, the support spring 207 is pressed and contracted by the bottle plug, so that the end part enters one side of the card ring groove 405, then the threaded rod 303 is started to make the threaded cylinder 402 contract, so as to retract the support spring 207 into the card ring groove 405, then the installation head 201 is pulled out, the plug cone head 404 is inserted into the new infusion bottle, and the insertion and fixing operation is performed according to the initial state, so as to realize the change of the liquid; When infusion, the bandage 110 is put on the infusion limb of the patient, and is loosely fixed by the male magic tape 111 and the female magic tape 112, and attention should be paid to avoid forming pressure on the limb during fixing, so as to avoid the tearing of the infusion tube 101 when the infusion tube 101 is pulled out.

[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A stem cell delivery device, characterized in that, include: The conveying mechanism has a guide sliding docking mechanism at its top end, a detachable drive mechanism at its bottom end, an expansion-type turbulence mechanism at its top end, and a fixing anti-detachment mechanism on its surface. The delivery mechanism includes an infusion tube (101), and the guide sliding docking mechanism includes an installation head (201) and a lower threaded ring (202). The installation head (201) is fixedly installed at the top of the infusion tube (101), and the lower threaded ring (202) is fixedly connected to the inner wall of the bottom end of the installation head (201). The detachable drive mechanism includes a screw head docking shell (301), a turbulence drive motor (302), and a threaded rod (303). The screw head docking shell (301) is threadedly connected to the inside of the lower threaded ring (202), the turbulence drive motor (302) is fixedly installed inside the screw head docking shell (301), and the threaded rod (303) is fixedly installed at the output end of the turbulence drive motor (302) via a coupling. The expansion-type turbulence mechanism includes a plugging guide (401), a threaded cylinder (402), and a rubber expansion bladder (403). The plugging guide (401) is located at the top of the mounting head (201). The threaded cylinder (402) is fixedly inserted into the bottom of the plugging guide (401), and the inner wall of the threaded cylinder (402) is threadedly connected to the surface of the threaded rod (303). The rubber expansion bladder (403) is fixedly connected between the plugging guide (401) and the mounting head (201), and nitrogen gas is filled between the plugging guide (401), the mounting head (201), and the rubber expansion bladder (403). The fixing and anti-detachment mechanism includes an extension ear (501), which is integrally set on the surface of the mounting head (201).

2. The stem cell delivery device according to claim 1, characterized in that, The delivery mechanism also includes a constant pressure air inlet tube (102), an air filter (103), a drip chamber (104), a flow regulator (105), an extension hose (106), and a puncture needle (107). The constant pressure air inlet tube (102) is fixedly installed on the surface of the mounting head (201). The air filter (103) is fixedly installed at the free end of the constant pressure air inlet tube (102). The drip chamber (104) is fixedly installed inside the infusion tube (101). The flow regulator (105) is movably installed on the surface of the infusion tube (101). The extension hose (106) is fixedly installed at the bottom end of the infusion tube (101). The puncture needle (107) is fixedly installed at the bottom end of the extension hose (106).

3. The stem cell delivery device according to claim 2, characterized in that, The delivery mechanism also includes a support sleeve (108), a buffer sleeve (109), a strap (110), a male Velcro strap (111), and a female Velcro strap (112). The support sleeve (108) is fixedly sleeved on the surface of the infusion tube (101), the buffer sleeve (109) is fixedly sleeved on the surface of the support sleeve (108), the strap (110) is integrally disposed on the surface of the buffer sleeve (109), and the male Velcro strap (111) and the female Velcro strap (112) are both fixedly installed on the surface of the strap (110).

4. The stem cell delivery device according to claim 1, characterized in that, The guide sliding docking mechanism also includes an infusion channel (203), an air inlet channel (204), a stop ring (205), and a locking ring (206). The infusion channel (203) and the air inlet channel (204) are both opened through the surface of the mounting head (201). The mounting head (201) is fixedly connected to the infusion tube (101) through the infusion channel (203) and the mounting head (201) is fixedly connected to the constant pressure air inlet tube (102) through the air inlet channel (204). The top of the infusion channel (203) is lower than the top of the air inlet channel (204). The stop ring (205) and the locking ring (206) are both integrally set on the surface of the mounting head (201).

5. A stem cell delivery device according to claim 4, characterized in that, The guide sliding docking mechanism also includes a support spring (207) and a flexible groove (208). There are multiple support springs (207), and all of the multiple support springs (207) are integrally set at the top of the mounting head (201). The roots of the multiple support springs (207) all have an outward elastic tendency. The rubber expansion and contraction bladder (403) is located between the multiple support springs (207). The flexible groove (208) is embedded in the bottom end of the support spring (207).

6. The stem cell delivery device according to claim 5, characterized in that, The guide sliding docking mechanism also includes a guide cylinder (209), a sliding seal ring (210), and a guide strip (211). The guide cylinder (209) is fixedly inserted into the interior of the mounting head (201). The sliding seal ring (210) is fixedly connected to the interior of the guide cylinder (209). The guide strip (211) is integrally set on the inner wall of the guide cylinder (209), and the surface of the sliding seal ring (210) is slidably connected to the surface of the threaded cylinder (402).

7. The stem cell delivery device according to claim 1, characterized in that, The detachable drive mechanism also includes a battery (304), a control module (305), and an anti-slip sleeve (306). The battery (304) and the control module (305) are both fixedly installed inside the screw head docking shell (301), and the battery (304) and the control module (305) are both electrically connected to the turbulence drive motor (302). The anti-slip sleeve (306) is fixedly sleeved on the surface of the screw head docking shell (301).

8. A stem cell delivery device according to claim 7, characterized in that, The expansion-type turbulence mechanism also includes a plug-breaking cone (404) and a card ring groove (405). The plug-breaking cone (404) is integrally disposed at the top of the plug-breaking guide (401). The card ring groove (405) is embedded in the surface of the plug-breaking guide (401), and the plug-breaking guide (401) is engaged with multiple support springs (207) through the card ring groove (405).

9. A stem cell delivery device according to claim 8, characterized in that, The expansion-type turbulence mechanism also includes a limiting slide head (406) and a guide groove (407). The limiting slide head (406) is integrally disposed at one end of the threaded cylinder (402), and the surface of the limiting slide head (406) is slidably connected to the inner wall of the guide cylinder (209). The guide groove (407) is embedded in the surface of the limiting slide head (406), and the inner wall of the guide groove (407) is slidably connected to the surface of the guide strip (211).

10. A stem cell delivery device according to claim 1, characterized in that, The fixing and anti-detachment mechanism also includes a rotating frame (502) and a rubber ring (503). There are two rotating frames (502), and both rotating frames (502) are rotatably connected to the surface of the extension ear (501). The rubber ring (503) is fixedly connected between the two rotating frames (502).

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