Skin pretreatment device for hematopoietic stem cell transplantation nursing

Abstract

The invention belongs to the technical field of skin pretreatment, and particularly relates to a skin pretreatment device for hematopoietic stem cell transplantation nursing, which comprises a bearing base, an annular rail plate, a rubber ring sleeve, an area type cleaning mechanism, an insertion plate type protection mechanism, a pressure regulating type sealing mechanism and a multi-tube type blood drawing mechanism, the rubber ring is arranged on the inner wall of the annular rail plate in a sleeving mode, the area type cleaning mechanism is arranged on the annular rail plate, the inserting plate type protection mechanism is arranged at the end, away from the annular rail plate, of the area type cleaning mechanism, and the pressure adjusting type sealing mechanism is arranged on the side wall of the inserting plate type protection mechanism. The skin pretreatment device for hematopoietic stem cell transplantation nursing can support and protect the puncture part of a patient, can perform negative pressure protection on the puncture part of the patient, reduces the contact frequency of the puncture part of the patient and external air, and reduces the infection probability of the puncture part.

Description

Technical Field

[0001] The invention belongs to the technical field of skin pretreatment, and specifically refers to a skin pretreatment device for hematopoietic stem cell transplantation care. Background Art

[0002] During the hematopoietic stem cell transplantation, there is an indwelling needle in the patient's arm. When collecting hematopoietic stem cells, it is usually necessary to draw the patient's blood through an intravenous indwelling needle, separate the hematopoietic stem cells through a separator, and then return them to the patient. In this process, the intravenous indwelling needle in the arm plays a key role.

[0003] The existing skin pretreatment devices have the following problems: Existing skin pretreatment devices do not have the ability to support and protect the patient's puncture site, which causes the patient's puncture site to inadvertently collide or contact with external objects, making it easy to get injured. Traditional skin pretreatment devices also do not have the ability to provide negative pressure protection for the patient's puncture site, which causes the puncture site wound to frequently come into contact with the outside air during multiple blood draws from the patient, easily increasing the chance of infection at the patient's puncture site. Therefore, they cannot meet existing use requirements for skin pretreatment devices. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present solution provides a skin pretreatment device for hematopoietic stem cell transplantation care that can support and protect the patient's puncture site, and can provide negative pressure protection for the patient's puncture site, thereby reducing the number of times the patient's puncture site contacts the outside air and reducing the chance of infection at the puncture site.

[0005] The technical scheme adopted by this scheme is as follows: A skin pretreatment device for hematopoietic stem cell transplantation care proposed in this scheme includes a bearing base, an annular track plate, a rubber ring sleeve, a regional cleaning mechanism, a plug-in type protection mechanism, a pressure regulating type sealing mechanism and a multi-tube blood drawing mechanism, wherein the annular track plate is arranged on the upper wall of the bearing base, the rubber ring sleeve is arranged on the inner wall of the annular track plate, the regional cleaning mechanism is arranged on the annular track plate, the plug-in type protection mechanism is arranged at one end of the regional cleaning mechanism away from the annular track plate, the pressure regulating type sealing mechanism is arranged on the side wall of the plug-in type protection mechanism, and the multi-tube blood drawing mechanism is arranged on the plug-in type protection mechanism. On the side away from the pressure-regulating sealing mechanism, the regional cleaning mechanism includes a filling mechanism and a coating mechanism, the filling mechanism is arranged at the end of the annular track away from the bearing base, the coating mechanism is arranged at the end of the filling mechanism away from the annular track, the plug-in plate type protection mechanism includes a closing mechanism and a locking mechanism, the closing mechanism is arranged at the end of the filling mechanism away from the annular track, the locking mechanism is arranged at the end of the closing mechanism close to the annular track, the multi-tube blood drawing mechanism includes a liquid guiding mechanism and a liquid storage mechanism, the liquid guiding mechanism is arranged on one side of the closing mechanism, and the liquid storage mechanism is arranged on the side of the closing mechanism away from the liquid guiding mechanism.

[0006] As a further preferred embodiment of the present invention, the liquid filling mechanism includes a liquid filling tube, a limit plate, a limit spring and a cleaning slide. The cleaning slide is slidably arranged on the end of the annular track plate away from the bearing base. The liquid filling tube passes through the inner wall of the end of the cleaning slide away from the annular track plate. The liquid filling tube is slidably connected to the cleaning slide. The limit plate is arranged at the end of the liquid filling tube away from the cleaning slide. The limit spring is arranged between the limit plate on the outside of the liquid filling tube and the cleaning slide. The coating mechanism includes a coating box, a liquid drop port and an L-shaped plate. The coating box is connected to the side wall of the liquid filling tube below the cleaning slide. Multiple groups of liquid drop ports are arranged on the side of the coating box away from the liquid filling tube. The L-shaped plate is symmetrically arranged on the bottom wall of the coating box outside the liquid drop port.

[0007] During use, the annular track plate utilizes the elastic deformation of the rubber ring sleeve to be inserted into the outside of the patient's arm, and the load-bearing base supports the patient's arm. The medical staff engages the disinfection cotton block between the L-shaped plates, and the disinfection cotton block fits with the bottom wall of the coating box. The medical staff injects disinfectant water into the filling tube, and the disinfectant water falls along the filling tube into the coating box. The coating box transports the disinfectant water to the inside of the disinfection cotton block through the liquid drop port. The medical staff presses the limit plate, and the limit plate utilizes the deformation of the limit spring to drive the filling tube to slide along the inner wall of the cleaning slide plate. The filling tube drives the disinfection cotton block to fit the part to be punctured of the patient through the coating box. The medical staff pushes the limit plate toward the outside of the puncture part, and the limit plate drives the filling tube to deflect. The filling tube drives the cleaning slide plate to rotate along the outside of the annular track plate at an angle, so that the disinfection cotton block disinfects the part to be punctured of the patient's arm and its surrounding area.

[0008] Preferably, the closing mechanism includes an annular plug plate, a closing plate and a closing rubber sleeve, the annular plug plate is arranged on the side of the cleaning slide away from the annular track plate, the closing plate is symmetrically arranged on the side of the annular plug plate close to the cleaning slide, and the closing rubber sleeve is arranged on the inner wall of the annular plug plate; the locking mechanism includes a socket, an insertion rod and a screw sleeve, the sockets are symmetrically arranged on the side wall of the annular track plate in a group of two, the insertion rod passes through the socket and is arranged on the side wall of the closing plate, the screw sleeve is arranged at one end of the insertion rod away from the closing plate, and the screw sleeve is threadedly connected to the insertion rod.

[0009] When in use, the annular plug plate utilizes the elastic deformation of the closed rubber sleeve to be inserted into the outside of the patient's arm, the closed rubber sleeve fits against the epidermis of the patient's arm, the annular plug plate drives the closing plate to be inserted into the area between the cleaning slide and the bearing base, the closing plate drives the insertion rod to be inserted into the socket, the annular plug plate fits against the side walls of the cleaning slide and the bearing base, the closing plate fits against the side walls of the cleaning slide and the annular track plate, the screw sleeve is screwed into the outside of the insertion rod, the screw sleeve rotates along the insertion rod and fits against the side walls of the annular track plate, the annular plug plate, the closing plate, the cleaning slide, the annular track plate and the bearing base form a sealed cavity.

[0010] Specifically, the pressure-regulating sealing mechanism includes a pressure-regulating cylinder, a pressure-regulating airbag, a one-way exhaust valve, a negative pressure tube and a one-way air inlet valve. The pressure-regulating cylinder is arranged on the side wall of the closing plate on one side of the annular plug plate, the one-way air inlet valve is connected and arranged on the side of the pressure-regulating cylinder close to the annular plug plate, the pressure-regulating airbag is connected and arranged on the side of the one-way air inlet valve away from the pressure-regulating cylinder, the one-way exhaust valve is connected and arranged on the side of the pressure-regulating airbag away from the one-way air inlet valve, and the negative pressure tube is connected and arranged on the side of the pressure-regulating cylinder away from the closing plate.

[0011] When in use, the end of the negative pressure tube away from the pressure regulating cylinder is inserted into the filling tube, and the medical staff squeezes the pressure regulating airbag to discharge the gas inside the pressure regulating airbag. When the pressure regulating airbag is deformed and reset, the gas inside the pressure regulating cylinder is extracted through a one-way air inlet valve, and the air pressure inside the pressure regulating cylinder is reduced. The pressure regulating cylinder uses the filling tube to extract the air inside the coating box through the negative pressure tube, and the coating box extracts the air inside the sealed cavity formed by the annular plug plate, closing plate, cleaning slide plate, annular track plate and supporting base through the liquid drop port. Under the repeated squeezing of the pressure regulating airbag by the medical staff, the inside of the sealed cavity formed by the annular plug plate, closing plate, cleaning slide plate, annular track plate and supporting base is changed to a negative pressure state.

[0012] The liquid guide mechanism includes an inclined frame, a liquid storage cylinder, a disposable tube, a liquid guide ring, a sealing rubber sleeve and an anti-skid rubber pad. The inclined frame is arranged on the side of the closing plate away from the cleaning slide, the anti-skid rubber pad is arranged on the inner wall of the inclined frame, the liquid storage cylinder is inserted into the end of the inclined frame away from the closing plate, the liquid storage cylinder is in contact with the inner wall of the anti-skid rubber pad, the disposable tube is connected to the side of the liquid storage cylinder close to the annular plug plate, the liquid guide ring is respectively penetrated through the inner wall of the cleaning slide and the inner wall of the coating box, and the sealing rubber sleeve is arranged on the inner wall of the liquid guide ring on the inner wall of the cleaning slide; the liquid storage mechanism includes a liquid extraction tube, a liquid extraction head, a threaded cover, an adsorption cylinder , an adsorption air bag, a one-way exhaust valve and a one-way air inlet valve. The adsorption cylinder is arranged on the side wall of the closing plate on the side of the annular plug plate away from the pressure regulating cylinder. The liquid extraction tube is connected to the side of the adsorption cylinder away from the closing plate. The liquid extraction head is connected to the side of the liquid extraction tube away from the adsorption cylinder. The threaded cover is penetrated through the inner wall of one end of the liquid storage cylinder away from the disposable tube. The threaded cover is threadedly connected to the liquid storage cylinder. The one-way air inlet valve two is connected to the side of the adsorption cylinder close to the annular plug plate. The adsorption air bag is connected to the side of the one-way air inlet valve two away from the adsorption cylinder. The one-way exhaust valve two is connected to the side of the adsorption air bag away from the one-way air inlet valve two.

[0013] When in use, the end of the indwelling needle for puncture in the patient's arm, away from the puncture site, extends out of the sealed cavity through the sealing rubber sleeve, the disposable tube is connected to the liquid extraction end of the indwelling needle, the threaded cap is rotated, the threaded cap is detached from the inner wall of the adsorption cylinder, the liquid extraction tube is connected to the opening of the adsorption cylinder through the liquid extraction head, the medical staff squeezes the adsorption airbag, and the air inside the adsorption airbag is discharged from the one-way exhaust valve 2. The adsorption airbag is deformed and reset to extract the air inside the adsorption cylinder through the one-way air inlet valve 2, the air pressure inside the adsorption cylinder is reduced, the adsorption cylinder extracts the air inside the liquid storage cylinder through the liquid extraction tube and the liquid extraction head, the internal pressure of the liquid storage cylinder is reduced, the liquid storage cylinder uses negative pressure to extract the patient's blood through the liquid storage cylinder, the patient's blood enters the disposable tube through the indwelling needle, and the disposable tube transports the blood to the liquid storage cylinder for storage.

[0014] Preferably, the contact parts of the annular plug plate, the closing plate, the cleaning slide plate, and the bearing base, and the contact parts of the closing plate and the annular rail plate are all provided with sealing gaskets.

[0015] The beneficial effects achieved by adopting the above structure are as follows: Compared with the prior art, the present invention adopts a method of forming a negative pressure cavity by means of a plug-in structure. By means of the regional cleaning mechanism, the plug-in plate protection mechanism, the pressure regulating sealing mechanism and the multi-tube blood drawing mechanism, negative pressure protection can be provided to the patient during multiple blood drawing tests. By providing a relatively closed environment, the contact area between the wound at the puncture site and the outside world is reduced, and the patient's punctured site is prevented from being disturbed by the external environment, thereby reducing the chance of infection in the patient. Moreover, by adjusting the negative pressure environment at the patient's puncture site, the pressure of the tissue around the puncture site on the puncture site can be reduced, and the pain caused by tissue compression in the patient can be relieved. The gas inside the pressure regulating airbag is discharged, and when the pressure regulating airbag is deformed and reset, the gas inside the pressure regulating cylinder is extracted through a one-way air inlet valve, and the air pressure inside the pressure regulating cylinder is reduced. The pressure regulating cylinder extracts the air inside the coating box through the negative pressure tube using the filling tube, and the coating box extracts the air inside the sealed cavity formed by the annular plug plate, the closing plate, the cleaning slide plate, the annular track plate and the supporting base through the liquid drop port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this scheme; Figure 2 This is the main stereogram of the scheme; Figure 3 This is a bottom-up stereogram of the scheme; Figure 4 This is a schematic diagram of the structure of the regional cleaning mechanism of this scheme; Figure 5 This is a schematic diagram of the structure of the plug-in type protection mechanism of this scheme; Figure 6 for Figure 5 A bottom-up stereogram of Figure 7 for Figure 4 A bottom-up stereogram of Figure 8 This is a schematic diagram of the combined structure of the liquid storage cylinder and the disposable tube of this solution; Fig. 9 This is the main view of this scheme; Fig.10 This is the left view of this scheme; Fig.11 This is the right view of this scheme; Fig.12 This is a top view of the scheme; Fig.13 for Fig.12 AA section view of the part; Fig.14 for Fig. 9 BB section view.

[0017] Among them, 1. bearing base, 2. annular rail plate, 3. rubber ring sleeve, 4. regional cleaning mechanism, 5. filling mechanism, 6. filling tube, 7. limit plate, 8. limit spring, 9. coating mechanism, 10. coating box, 11. liquid drop port, 12. L-shaped plate, 13. plug-in type protection mechanism, 14. closing mechanism, 15. annular plug-in plate, 16. closing plate, 17. closing rubber sleeve, 18. locking mechanism, 19. socket, 20. plug rod, 21. screw sleeve, 22. pressure regulating type sealing mechanism, 23. pressure regulating cylinder , 24. Pressure regulating air bag, 25. One-way exhaust valve 1, 26. Negative pressure tube, 27. One-way air inlet valve 1, 28. Multi-tube blood drawing mechanism, 29. Liquid guide mechanism, 30. Tilt frame, 31. Liquid storage cylinder, 32. Disposable tube, 33. Liquid guide ring, 34. Sealing rubber sleeve, 35. Liquid storage mechanism, 36. Liquid extraction tube, 37. Liquid extraction head, 38. Threaded cover, 39. Adsorption cylinder, 40. Adsorption air bag, 41. One-way exhaust valve 2, 42. Cleaning slide plate, 43. Anti-slip rubber pad, 44. One-way air inlet valve 2.

[0018] The accompanying drawings are used to provide further understanding of the present scheme and constitute a part of the specification. Together with the embodiments of the present scheme, they are used to explain the present scheme and do not constitute a limitation on the present scheme. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the present scheme will be clearly and completely described below in conjunction with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are only part of the embodiments of the present scheme, not all of the embodiments; based on the embodiments in the present scheme, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present scheme.

[0020] In the description of this scheme, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this scheme.

[0021] like Figure 1-Figure 14As shown, the present scheme proposes a skin pretreatment device for hematopoietic stem cell transplantation care, comprising a bearing base 1, an annular track plate 2, a rubber ring sleeve 3, a regional cleaning mechanism 4, a plug-in type protection mechanism 13, a pressure regulating type sealing mechanism 22 and a multi-tube type blood drawing mechanism 28, wherein the annular track plate 2 is arranged on the upper wall of the bearing base 1, the rubber ring sleeve 3 is arranged on the inner wall of the annular track plate 2, the regional cleaning mechanism 4 is arranged on the annular track plate 2, the plug-in type protection mechanism 13 is arranged at one end of the regional cleaning mechanism 4 away from the annular track plate 2, the pressure regulating type sealing mechanism 22 is arranged on the side wall of the plug-in type protection mechanism 13, and the multi-tube type blood drawing mechanism 28 is arranged on the plug-in type protection mechanism 13 away from the pressure regulating type sealing mechanism 22 On one side, the regional cleaning mechanism 4 includes a liquid filling mechanism 5 and a coating mechanism 9, the liquid filling mechanism 5 is arranged at the end of the annular track plate 2 away from the supporting base 1, the coating mechanism 9 is arranged at the end of the liquid filling mechanism 5 away from the annular track plate 2, the plug-in plate type protection mechanism 13 includes a closing mechanism 14 and a locking mechanism 18, the closing mechanism 14 is arranged at the end of the liquid filling mechanism 5 away from the annular track plate 2, the locking mechanism 18 is arranged at the end of the closing mechanism 14 close to the annular track plate 2, the multi-tube blood drawing mechanism 28 includes a liquid guiding mechanism 29 and a liquid storage mechanism 35, the liquid guiding mechanism 29 is arranged on one side of the closing mechanism 14, and the liquid storage mechanism 35 is arranged on the side of the closing mechanism 14 away from the liquid guiding mechanism 29.

[0022] The filling mechanism 5 includes a filling tube 6, a limit plate 7, a limit spring 8 and a cleaning slide 42. The cleaning slide 42 is slidably arranged at the end of the annular track plate 2 away from the supporting base 1. The filling tube 6 passes through the inner wall of the end of the cleaning slide 42 away from the annular track plate 2. The filling tube 6 is slidably connected with the cleaning slide 42. The limit plate 7 is arranged at the end of the filling tube 6 away from the cleaning slide 42. The limit spring 8 is arranged between the limit plate 7 and the cleaning slide 42 on the outside of the filling tube 6; the coating mechanism 9 includes a coating box 10, a liquid drop port 11 and an L-shaped plate 12. The coating box 10 is connected to the side wall of the filling tube 6 arranged below the cleaning slide 42. Multiple groups of the liquid drop ports 11 are arranged on the side of the coating box 10 away from the filling tube 6. The L-shaped plate 12 is symmetrically arranged on the bottom wall of the coating box 10 outside the liquid drop port 11.

[0023] The closing mechanism 14 includes an annular plug plate 15, a closing plate 16 and a closing rubber sleeve 17. The annular plug plate 15 is arranged on the side of the cleaning slide 42 away from the annular track plate 2, the closing plate 16 is symmetrically arranged on the side of the annular plug plate 15 close to the cleaning slide 42, and the closing rubber sleeve 17 is arranged on the inner wall of the annular plug plate 15; the locking mechanism 18 includes a socket 19, an insertion rod 20 and a screw sleeve 21. The sockets 19 are symmetrically arranged on the side wall of the annular track plate 2 in pairs, the insertion rod 20 passes through the socket 19 and is arranged on the side wall of the closing plate 16, the screw sleeve 21 is arranged at one end of the insertion rod 20 away from the closing plate 16, and the screw sleeve 21 is threadedly connected to the insertion rod 20.

[0024] The pressure-regulating sealing mechanism 22 includes a pressure-regulating cylinder 23, a pressure-regulating airbag 24, a one-way exhaust valve 25, a negative pressure tube 26 and a one-way air inlet valve 27. The pressure-regulating cylinder 23 is arranged on the side wall of the closing plate 16 on one side of the annular plug plate 15. The one-way air inlet valve 27 is connected to the side of the pressure-regulating cylinder 23 close to the annular plug plate 15. The pressure-regulating airbag 24 is connected to the side of the one-way air inlet valve 27 away from the pressure-regulating cylinder 23. The one-way exhaust valve 25 is connected to the side of the pressure-regulating airbag 24 away from the one-way air inlet valve 27. The negative pressure tube 26 is connected to the side of the pressure-regulating cylinder 23 away from the closing plate 16.

[0025] The liquid guiding mechanism 29 includes an inclined frame 30, a liquid storage cylinder 31, a disposable tube 32, a liquid guiding ring 33, a sealing rubber sleeve 34 and an anti-skid rubber pad 43. The inclined frame 30 is arranged on the side of the closing plate 16 away from the cleaning slide plate 42, and the anti-skid rubber pad 43 is arranged on the inner wall of the inclined frame 30. The liquid storage cylinder 31 is inserted into the end of the inclined frame 30 away from the closing plate 16. The liquid storage cylinder 31 fits the inner wall of the anti-skid rubber pad 43. The disposable tube 32 is connected to the side of the liquid storage cylinder 31 close to the annular plug plate 15. The liquid guiding ring 33 passes through the inner wall of the cleaning slide plate 42 and the inner wall of the coating box 10 respectively. The sealing rubber sleeve 34 is arranged on the inner wall of the liquid guiding ring 33 on the inner wall of the cleaning slide plate 42; the liquid storage mechanism 35 includes a liquid extraction tube 36, a liquid extraction head 37, a threaded cover 38, an adsorption The cylinder 39, the adsorption air bag 40, the one-way exhaust valve 41 and the one-way air inlet valve 44, the adsorption cylinder 39 is arranged on the side wall of the closing plate 16 on the side of the annular plug plate 15 away from the pressure regulating cylinder 23, the liquid extraction tube 36 is connected and arranged on the side of the adsorption cylinder 39 away from the closing plate 16, the liquid extraction head 37 is connected and arranged on the side of the liquid extraction tube 36 away from the adsorption cylinder 39, the threaded cap 38 is penetrated and arranged on the inner wall of one end of the liquid storage cylinder 31 away from the disposable tube 32, the threaded cap 38 is threadedly connected to the liquid storage cylinder 31, the one-way air inlet valve 44 is connected and arranged on the side of the adsorption cylinder 39 close to the annular plug plate 15, the adsorption air bag 40 is connected and arranged on the side of the one-way air inlet valve 44 away from the adsorption cylinder 39, and the one-way exhaust valve 41 is connected and arranged on the side of the adsorption air bag 40 away from the one-way air inlet valve 44.

[0026] The contact parts between the annular insert plate 15 , the closing plate 16 and the cleaning slide plate 42 , the bearing base 1 , and the contact parts between the closing plate 16 and the annular track plate 2 are all provided with sealing gaskets.

[0027] When in use, in the initial state, the cleaning slide plate 42 and the closing plate 16 are in a combined state, the limit spring 8 is in an extended setting, the liquid storage cylinder 31 is inserted into the end of the tilting frame 30 away from the closing plate 16, the anti-skid rubber pad 43 is squeezed between the liquid storage cylinder 31 and the inner wall of the tilting frame 30, so that the liquid storage cylinder 31 will not fall off from the inside of the liquid storage cylinder 31, the screw sleeve 21 is manually rotated, the screw sleeve 21 is unscrewed from the outside of the insertion rod 20, the annular plug plate 15 is pulled, and the annular plug plate 15 pulls the insertion rod 20 out of the socket 19 through the closing plate 16, and the cleaning slide plate 42 is separated from the closing plate 16; The skin of the patient's puncture site is pre-treated and disinfected. The annular track plate 2 is inserted into the outside of the patient's arm by the elastic deformation of the rubber ring 3. The supporting base 1 supports the patient's arm. The medical staff clamps the disinfection cotton block between the L-shaped plates 12. The disinfection cotton block fits the bottom wall of the coating box 10. The medical staff injects disinfectant water into the filling tube 6. The disinfectant water falls along the filling tube 6 into the coating box 10. The coating box 10 transports the disinfectant water to the inside of the disinfection cotton block through the liquid drop port 11 , the medical staff presses the limit plate 7, and the limit plate 7 uses the limit spring 8 to deform and drive the liquid filling tube 6 to slide along the inner wall of the cleaning slide plate 42. The liquid filling tube 6 drives the disinfection cotton block to fit the part of the patient to be punctured through the coating box 10. The medical staff moves the limit plate 7 to the outside of the puncture part, and the limit plate 7 drives the liquid filling tube 6 to deflect. The liquid filling tube 6 drives the cleaning slide plate 42 to rotate along the outside of the annular track plate 2, so that the disinfection cotton block disinfects the part of the patient's arm to be punctured and its surrounding area; After the puncture site of the patient is disinfected, the medical staff will pull out the disinfection cotton block from between the L-shaped plate 12, and the patient's arm will be punctured with a needle. The end of the needle away from the puncture site will extend to the top of the cleaning slide 42 through the sealing rubber sleeve 34. The sealing rubber sleeve 34 will fit the outside of the indwelling needle pipeline by using its deformation characteristics, and then the area after the patient's puncture will be closed. The annular plug plate 15 will be elastically deformed and inserted into the outside of the patient's arm by using the closing rubber sleeve 17. The closing rubber sleeve 17 will fit the epidermis of the patient's arm, and the annular plug plate 15 will drive the closing plate 16 is inserted into the area between the side wall of the cleaning slide 42 and the side wall of the bearing base 1, the closing plate 16 drives the insertion rod 20 to be inserted into the socket 19, the annular insert plate 15 is fitted with the cleaning slide 42 and the side wall of the bearing base 1, the closing plate 16 is fitted with the cleaning slide 42 and the side wall of the annular track plate 2, the screw sleeve 21 is screwed into the outside of the insertion rod 20, the screw sleeve 21 rotates along the insertion rod 20 and fits with the side wall of the annular track plate 2, and the annular insert plate 15, the closing plate 16, the cleaning slide 42, the annular track plate 2 and the bearing base 1 form a sealed cavity; At this time, the end of the negative pressure tube 26 away from the pressure regulating cylinder 23 is inserted into the filling tube 6, and the medical staff squeezes the pressure regulating airbag 24 to discharge the gas inside the pressure regulating airbag 24. When the pressure regulating airbag 24 is deformed and reset, the gas inside the pressure regulating cylinder 23 is extracted through the one-way air inlet valve 27. The air pressure inside the pressure regulating cylinder 23 is reduced, and the pressure regulating cylinder 23 uses the filling tube 6 to extract the air inside the coating box 10 through the negative pressure tube 26. The coating box 10 extracts the air from the sealed cavity formed by the annular plug plate 15, the closing plate 16, the cleaning slide plate 42, the annular track plate 2 and the supporting base 1 through the liquid drop port 11. The air inside, under the repeated squeezing of the pressure regulating airbag 24 by the medical staff, changes the inside of the sealed cavity formed by the annular plug plate 15, the closing plate 16, the cleaning slide plate 42, the annular track plate 2 and the bearing base 1 into a negative pressure state. On the one hand, the negative pressure protection can provide a relatively closed environment, reducing the contact area between the puncture site and the outside world, thereby reducing the risk of infection. On the other hand, the support structure formed by the annular plug plate 15, the closing plate 16, the cleaning slide plate 42, the annular track plate 2 and the bearing base 1 can ensure that the patient's puncture site is not damaged. During the hematopoietic stem cell transplantation process, the patient needs to have blood drawn multiple times. The patient's arm is placed vertically, the extraction tube 36 and the extraction head 37 are located above the disposable tube 32, the disposable tube 32 is connected to the extraction end of the indwelling needle extending out of the sealing rubber sleeve 34, the threaded cover 38 is rotated, the threaded cover 38 is detached from the inner wall of the adsorption cylinder 39, the extraction tube 36 is connected to the opening of the adsorption cylinder 39 through the extraction head 37, the medical staff squeezes the adsorption airbag 40, the air inside the adsorption airbag 40 is discharged from the one-way exhaust valve 41, the adsorption airbag 40 is deformed and reset to extract the air inside the adsorption cylinder 39 through the one-way air inlet valve 44, the air pressure inside the adsorption cylinder 39 is reduced, and the adsorption cylinder 39 is closed. The air inside the liquid storage cylinder 31 is extracted through the extraction tube 36 and the extraction head 37, and the internal pressure of the liquid storage cylinder 31 is reduced. The liquid storage cylinder 31 uses negative pressure to extract the patient's blood through the liquid storage cylinder 31, and the patient's blood enters the disposable tube 32 through the indwelling needle. The disposable tube 32 transports the blood to the liquid storage cylinder 31 for storage. After a group of blood is stored in the liquid storage cylinder 31, the disposable tube 32 is disconnected from the indwelling needle, and a new group of disposable tubes 32 is connected to the indwelling needle to continue drawing blood from the patient, thereby completing the blood drawing operation on the patient while ensuring that the outside air does not come into contact with the patient's puncture site; the above operation can be repeated the next time it is used.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] The above is a description of the present solution and its implementation methods, which is not restrictive. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the creative purpose of the present solution, they should all fall within the protection scope of the present solution.

Claims

1. A skin pretreatment device for hematopoietic stem cell transplantation care, comprising a bearing base, an annular track plate and a rubber ring sleeve, characterized in that: It also includes a regional cleaning mechanism, a plug-in protection mechanism, a pressure regulating sealing mechanism and a multi-tube blood drawing mechanism, wherein the annular track plate is arranged on the upper wall of the bearing base, and the rubber ring sleeve is arranged on the inner wall of the annular track plate; The regional cleaning mechanism includes a liquid filling mechanism and a coating mechanism; The liquid filling mechanism is arranged at one end of the annular track plate away from the bearing base, and the coating mechanism is arranged at one end of the liquid filling mechanism away from the annular track plate; The plug-in type protection mechanism includes a closing mechanism and a locking mechanism; The closing mechanism is arranged at an end of the liquid filling mechanism away from the annular track plate, and the locking mechanism is arranged at an end of the closing mechanism close to the annular track plate; The multi-tube blood drawing mechanism comprises a liquid guiding mechanism and a liquid storing mechanism; The liquid guiding mechanism is arranged on one side of the closing mechanism, and the liquid storage mechanism is arranged on a side of the closing mechanism away from the liquid guiding mechanism; The liquid filling mechanism includes a cleaning slide plate; The cleaning slide plate is slidably arranged on one end of the annular track plate away from the bearing base; The closing mechanism comprises an annular plugging plate and a closing plate. The annular plugging plate is arranged on a side of the cleaning slide away from the annular track plate, and the closing plate is symmetrically arranged on a side of the annular plugging plate close to the cleaning slide.

2. A skin pretreatment device for hematopoietic stem cell transplantation care according to claim 1, characterized in that: The liquid filling mechanism also includes a liquid filling tube, a limit plate and a limit spring. The liquid filling tube passes through the inner wall of the end of the cleaning slide away from the annular track plate. The liquid filling tube is slidably connected to the cleaning slide. The limit plate is arranged at the end of the liquid filling tube away from the cleaning slide. The limit spring is arranged between the limit plate outside the liquid filling tube and the cleaning slide.

3. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 1, characterized in that: The coating mechanism includes a coating box, a liquid drop port and an L-shaped plate. The coating box is connected to the side wall of the liquid filling pipe arranged below the cleaning slide. Multiple groups of liquid drop ports are arranged on the side of the coating box away from the liquid filling pipe. The L-shaped plate is symmetrically arranged on the bottom wall of the coating box outside the liquid drop port.

4. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 3, characterized in that: The closing mechanism also includes a closing rubber sleeve, which is arranged on the inner wall of the annular plug plate.

5. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 1, characterized in that: The locking mechanism includes a socket, an insertion rod and a screw sleeve. The sockets are symmetrically arranged on the side wall of the annular track plate in pairs. The insertion rod passes through the socket and is arranged on the side wall of the closing plate. The screw sleeve is arranged at one end of the insertion rod away from the closing plate, and the screw sleeve is threadedly connected to the insertion rod.

6. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 1, characterized in that: The pressure-regulating sealing mechanism includes a pressure-regulating cylinder, a pressure-regulating airbag, a one-way exhaust valve, a negative pressure tube and a one-way air inlet valve. The pressure-regulating cylinder is arranged on the side wall of the closing plate on one side of the annular plug plate, the one-way air inlet valve is connected and arranged on the side of the pressure-regulating cylinder close to the annular plug plate, the pressure-regulating airbag is connected and arranged on the side of the one-way air inlet valve away from the pressure-regulating cylinder, the one-way exhaust valve is connected and arranged on the side of the pressure-regulating airbag away from the one-way air inlet valve, and the negative pressure tube is connected and arranged on the side of the pressure-regulating cylinder away from the closing plate.

7. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 6, characterized in that: The liquid guiding mechanism includes an inclined frame, a liquid storage cylinder, a disposable tube, a liquid guiding ring, a sealing rubber sleeve and an anti-skid rubber pad. The inclined frame is arranged on a side of the closing plate away from the cleaning slide plate, the anti-skid rubber pad is arranged on the inner wall of the inclined frame, the liquid storage cylinder is inserted into an end of the inclined frame away from the closing plate, the liquid storage cylinder is fitted with the inner wall of the anti-skid rubber pad, the disposable tube is connected to a side of the liquid storage cylinder close to the annular plug plate, the liquid guiding rings are respectively penetrated through the inner wall of the cleaning slide plate and the inner wall of the coating box, and the sealing rubber sleeve is arranged on the inner wall of the liquid guiding ring on the inner wall of the cleaning slide plate.

8. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 7, characterized in that: The liquid storage mechanism includes a liquid extraction tube, a liquid extraction head, a threaded cover, an adsorption cylinder, an adsorption air bag, two one-way exhaust valves and two one-way air inlet valves. The adsorption cylinder is arranged on the side wall of the closing plate on the side of the annular plug plate away from the pressure regulating cylinder, the liquid extraction tube is connected to the side of the adsorption cylinder away from the closing plate, the liquid extraction head is connected to the side of the liquid extraction tube away from the adsorption cylinder, the threaded cover is penetrated through the inner wall of one end of the liquid storage cylinder away from the disposable tube, the threaded cover is threadedly connected to the liquid storage cylinder, the two one-way air inlet valves are connected to the side of the adsorption cylinder close to the annular plug plate, the adsorption air bag is connected to the side of the one-way air inlet valve away from the adsorption cylinder, and the two one-way exhaust valves are connected to the side of the adsorption air bag away from the one-way air inlet valve.

9. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 1, characterized in that: The contact parts of the annular plug plate, the closing plate, the cleaning slide plate and the bearing base, and the contact parts of the closing plate and the annular track plate are all provided with sealing pads.

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