A skin pretreatment device for hematopoietic stem cell transplantation nursing

Abstract

The present invention belongs to the technical field of skin pretreatment, and specifically refers to a skin pretreatment device for hematopoietic stem cell transplantation nursing, including a bearing base, an annular rail plate, a rubber ring sleeve, a regional cleaning mechanism, an insertion plate protection mechanism, a pressure regulating sealing mechanism, and a multi-tube blood drawing mechanism. The annular rail plate is arranged on the upper wall of the bearing base, the rubber ring sleeve is arranged on the inner wall of the annular rail plate, the regional cleaning mechanism is arranged on the annular rail plate, the insertion plate protection mechanism is arranged at one end of the regional cleaning mechanism away from the annular rail plate, and the pressure regulating sealing mechanism is arranged on the side wall of the insertion plate protection mechanism. The present invention provides a skin pretreatment device for hematopoietic stem cell transplantation nursing that can support and protect the puncture site of a patient, and can provide negative pressure protection to the puncture site of the patient, reducing the number of times the puncture site comes into contact with the outside air and lowering the probability of infection at the puncture site.

Description

Technical Field

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

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

[0003] Currently, the existing skin pretreatment devices have the following problems:

[0004] The existing skin pretreatment devices do not have the ability to support and protect the patient's puncture site, resulting in the patient's puncture site accidentally colliding with or contacting external objects, which is prone to injury. Moreover, the traditional skin pretreatment devices do not have the ability to provide negative pressure protection for the patient's puncture site, resulting in the puncture site wound frequently coming into contact with external air during multiple blood draws from the patient, which is likely to increase the probability of infection at the patient's puncture site. Therefore, they cannot meet the current usage requirements for skin pretreatment devices. Summary of the Invention

[0005] In view of the above situation, to overcome the defects of the prior art, this solution provides a skin pretreatment device for hematopoietic stem cell transplantation nursing that can support and protect the patient's puncture site, can provide negative pressure protection for the patient's puncture site, reduce the number of times the patient's puncture site comes into contact with external air, and reduce the probability of infection at the puncture site.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] Preferably, the closing mechanism includes an annular insertion plate, a closing plate, and a closing rubber sleeve. The annular insertion plate is arranged on the side of the cleaning slide plate away from the annular rail plate. The closing plates are symmetrically arranged on the side of the annular insertion plate close to the cleaning slide plate. The closing rubber sleeve is arranged on the inner wall of the annular insertion plate. The locking mechanism includes a socket, a plug rod, and a screw sleeve. The sockets are symmetrically arranged in pairs on the side wall of the annular rail plate. The plug 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 plug rod away from the closing plate, and the screw sleeve is threadedly connected to the plug rod.

[0010] During use, the annular insertion plate uses the elastic deformation of the closing rubber sleeve to be sleeved on the outer side of the patient's arm. The closing rubber sleeve fits with the epidermis of the patient's arm. The annular insertion plate drives the closing plate to insert into the area between the cleaning slide plate and the bearing base. The closing plate drives the plug rod to insert into the socket. The annular insertion plate fits with the side walls of the cleaning slide plate and the bearing base. The closing plate fits with the side walls of the cleaning slide plate and the annular rail plate. The screw sleeve is screwed onto the outer side of the plug rod, and the screw sleeve rotates along the plug rod and fits with the side wall of the annular rail plate. The annular insertion plate, the closing plate, the cleaning slide plate, the annular rail plate, and the bearing base form a sealed cavity.

[0011] Specifically, the pressure-regulating closed mechanism includes a pressure-regulating cylinder, a pressure-regulating airbag, a one-way exhaust valve I, a negative pressure tube, and a one-way intake valve I. The pressure-regulating cylinder is arranged on the side wall of the closing plate on one side of the annular insertion plate. The one-way intake valve I is connected and arranged on the side of the pressure-regulating cylinder close to the annular insertion plate. The pressure-regulating airbag is connected and arranged on the side of the one-way intake valve I away from the pressure-regulating cylinder. The one-way exhaust valve I is connected and arranged on the side of the pressure-regulating airbag away from the one-way intake valve I. The negative pressure tube is connected and arranged on the side of the pressure-regulating cylinder away from the closing plate.

[0012] During use, one end of the negative pressure tube away from the pressure-regulating cylinder is inserted into the liquid filling tube. The medical staff squeezes the pressure-regulating airbag, and the gas inside the pressure-regulating airbag is discharged. When the pressure-regulating airbag deforms and resets, it extracts the gas inside the pressure-regulating cylinder through the one-way intake valve I. The air pressure inside the pressure-regulating cylinder decreases. The pressure-regulating cylinder extracts the air inside the coating box through the negative pressure tube using the liquid filling tube. The coating box extracts the air inside the sealed cavity formed by the annular insertion plate, the closing plate, the cleaning slide plate, the annular rail plate, and the bearing base through the liquid dropping port. After the medical staff squeezes the pressure-regulating airbag multiple times, the inside of the sealed cavity formed by the annular insertion plate, the closing plate, the cleaning slide plate, the annular rail plate, and the bearing base is changed to a negative pressure state.

[0013] Among them, the liquid guiding mechanism includes an inclined frame, a liquid storage cylinder, a disposable tube, a liquid guiding sleeve ring, a sealing rubber sleeve and an anti-slip rubber pad. The inclined frame is arranged on the side of the closing plate away from the cleaning slide plate. The anti-slip 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, and the liquid storage cylinder is attached to the inner wall of the anti-slip rubber pad. The disposable tube is communicatively arranged on the side of the liquid storage cylinder close to the annular insertion plate. The liquid guiding sleeve ring respectively penetrates through the inner walls of the cleaning slide plate and the coating box. The sealing rubber sleeve is arranged on the inner wall of the liquid guiding sleeve ring on the inner wall of the cleaning slide plate; the liquid storage mechanism includes a liquid extraction tube, a liquid extraction head, a threaded cap, an adsorption cylinder, an adsorption airbag, a one-way exhaust valve II and a one-way intake valve II. The adsorption cylinder is arranged on the side wall of the closing plate on the side of the annular insertion plate away from the pressure regulating cylinder. The liquid extraction tube is communicatively arranged on the side of the adsorption cylinder away from the closing plate. The liquid extraction head is communicatively arranged on the side of the liquid extraction tube away from the adsorption cylinder. The threaded cap penetrates through the inner wall of the end of the liquid storage cylinder away from the disposable tube, and the threaded cap is threadedly connected to the liquid storage cylinder. The one-way intake valve II is communicatively arranged on the side of the adsorption cylinder close to the annular insertion plate. The adsorption airbag is communicatively arranged on the side of the one-way intake valve II away from the adsorption cylinder. The one-way exhaust valve II is communicatively arranged on the side of the adsorption airbag away from the one-way intake valve II.

[0014] During use, the end of the indwelling needle puncturing the patient's arm away from the puncture site extends out of the sealed cavity through the sealing rubber sleeve. The disposable tube is communicatively connected to the liquid extraction end of the indwelling needle. Rotate the threaded cap, and the threaded cap disengages 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 II. The adsorption airbag deforms and resets to extract the air inside the adsorption cylinder through the one-way intake valve II. The air pressure inside the adsorption cylinder decreases. The adsorption cylinder extracts the air inside the liquid storage cylinder through the liquid extraction tube and the liquid extraction head. The pressure inside the liquid storage cylinder decreases. 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 into the liquid storage cylinder for storage.

[0015] Preferably, sealing gaskets are provided at the contact parts of the annular insertion plate, the closing plate with the cleaning slide plate and the bearing base, and at the contact part of the closing plate with the annular rail plate.

[0016] The beneficial effects obtained by this solution with the above structure are as follows:

[0017] Compared with the prior art, the present solution forms a negative pressure cavity by using an insertion structure. Through the provided area-type cleaning mechanism, plug-type protection mechanism, pressure-regulating sealing mechanism, and multi-tube blood-drawing mechanism, it can provide negative pressure protection for patients during multiple blood-drawing tests. By providing a relatively enclosed environment, it reduces the contact area between the wound at the puncture site and the outside world, avoids interference from the external environment to the puncture site of the patient, thereby reducing the probability of the patient being infected. And by adjusting the negative pressure environment at the puncture site of the patient, it can relieve the pressure of the surrounding tissues on the puncture site and alleviate the pain caused by tissue compression in the patient. When the gas inside the pressure-regulating airbag is discharged and the pressure-regulating airbag deforms and resets, it extracts the gas inside the pressure-regulating cylinder through the one-way intake valve 1. The air pressure inside the pressure-regulating cylinder decreases. The pressure-regulating cylinder uses the filling tube to extract the air inside the coating box through the negative pressure tube. The coating box extracts the air inside the sealed cavity formed by the annular plug, closing plate, cleaning slide plate, annular rail plate, and bearing base through the liquid dropping port. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the present solution;

[0019] Figure 2 is the front perspective view of the present solution;

[0020] Figure 3 is the bottom perspective view of the present solution;

[0021] Figure 4 is the structural schematic diagram of the area-type cleaning mechanism of the present solution;

[0022] Figure 5 is the structural schematic diagram of the plug-type protection mechanism of the present solution;

[0023] Figure 6 is Figure 5 the bottom perspective view of;

[0024] Figure 7 is Figure 4 the bottom perspective view of;

[0025] Figure 8 is the combined structural schematic diagram of the liquid storage cylinder and the disposable tube of the present solution;

[0026] Figure 9 is the front view of the present solution;

[0027] Figure 10 is the left view of the present solution;

[0028] Figure 11 is the right view of the present solution;

[0029] Figure 12 is the top view of the present solution;

[0030] Figure 13 is Figure 12 the sectional view taken along line A-A of;

[0031] Figure 14 is Figure 9 the sectional view taken along line B-B of.

[0032] Wherein, 1, bearing base; 2, annular rail plate; 3, rubber ring sleeve; 4, area-type cleaning mechanism; 5, liquid filling mechanism; 6, liquid filling pipe; 7, limiting plate; 8, limiting spring; 9, coating mechanism; 10, coating box; 11, liquid dropping port; 12, L-shaped plate; 13, plug plate-type protection mechanism; 14, closing mechanism; 15, annular plug plate; 16, closing plate; 17, closing rubber sleeve; 18, locking mechanism; 19, socket; 20, inserting rod; 21, screw sleeve; 22, pressure-regulating type closing mechanism; 23, pressure-regulating cylinder; 24, pressure-regulating airbag; 25, one-way exhaust valve I; 26, negative pressure pipe; 27, one-way intake valve I; 28, multi-tube type blood drawing mechanism; 29, liquid guiding mechanism; 30, inclined rack; 31, liquid storage cylinder; 32, disposable tube; 33, liquid guiding sleeve ring; 34, sealing rubber sleeve; 35, liquid storage mechanism; 36, liquid extraction pipe; 37, liquid extraction head; 38, threaded cap; 39, adsorption cylinder; 40, adsorption airbag; 41, one-way exhaust valve II; 42, cleaning slide plate; 43, anti-slip rubber pad; 44, one-way intake valve II.

[0033] The accompanying drawings are used to provide further understanding of the present solution, and constitute a part of the description. Together with the embodiments of the present solution, they are used to explain the present solution, and do not constitute a limitation to the present solution. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present solution will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present solution. Obviously, the described embodiments are only a part of the embodiments of the present solution, rather than all of the embodiments; based on the embodiments in the present solution, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present solution.

[0035] In the description of the present solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present solution.

[0036] As Figures 1 - 14As shown in the figure, a skin pretreatment device for hematopoietic stem cell transplantation proposed by this solution includes a bearing base 1, an annular rail plate 2, a rubber ring sleeve 3, a regional cleaning mechanism 4, a plug-in protection mechanism 13, a pressure-regulating sealing mechanism 22, and a multi-tube blood drawing mechanism 28. The annular rail 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 rail plate 2. The regional cleaning mechanism 4 is arranged on the annular rail plate 2. The plug-in protection mechanism 13 is arranged at one end of the regional cleaning mechanism 4 away from the annular rail plate 2. The pressure-regulating sealing mechanism 22 is arranged on the side wall of the plug-in protection mechanism 13. The multi-tube blood drawing mechanism 28 is arranged on one side of the plug-in protection mechanism 13 away from the pressure-regulating sealing mechanism 22. The regional cleaning mechanism 4 includes a liquid filling mechanism 5 and an application mechanism 9. The liquid filling mechanism 5 is arranged at one end of the annular rail plate 2 away from the bearing base 1. The application mechanism 9 is arranged at one end of the liquid filling mechanism 5 away from the annular rail plate 2. The plug-in protection mechanism 13 includes a closing mechanism 14 and a locking mechanism 18. The closing mechanism 14 is arranged at one end of the liquid filling mechanism 5 away from the annular rail plate 2. The locking mechanism 18 is arranged at one end of the closing mechanism 14 close to the annular rail 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. The liquid storage mechanism 35 is arranged on one side of the closing mechanism 14 away from the liquid guiding mechanism 29.

[0037] The liquid filling mechanism 5 includes a liquid filling tube 6, a limiting plate 7, a limiting spring 8, and a cleaning slide plate 42. The cleaning slide plate 42 is slidably arranged at one end of the annular rail plate 2 away from the bearing base 1. The liquid filling tube 6 is arranged through the inner wall of one end of the cleaning slide plate 42 away from the annular rail plate 2, and the liquid filling tube 6 is slidably connected with the cleaning slide plate 42. The limiting plate 7 is arranged at one end of the liquid filling tube 6 away from the cleaning slide plate 42. The limiting spring 8 is arranged between the limiting plate 7 on the outer side of the liquid filling tube 6 and the cleaning slide plate 42. The application mechanism 9 includes an application box 10, a liquid dropping port 11, and an L-shaped plate 12. The application box 10 is communicated and arranged on the side wall of the liquid filling tube 6 below the cleaning slide plate 42. Multiple groups of the liquid dropping ports 11 are arranged on one side of the application box 10 away from the liquid filling tube 6. The L-shaped plates 12 are symmetrically arranged on the bottom wall of the application box 10 outside the liquid dropping ports 11.

[0038] The closing mechanism 14 includes an annular plug board 15, a closing board 16, and a closing rubber sleeve 17. The annular plug board 15 is arranged on one side of the cleaning slide plate 42 away from the annular rail plate 2. The closing boards 16 are symmetrically arranged on one side of the annular plug board 15 close to the cleaning slide plate 42. The closing rubber sleeve 17 is arranged on the inner wall of the annular plug board 15. The locking mechanism 18 includes a socket 19, a plug rod 20, and a screw sleeve 21. The sockets 19 are symmetrically arranged in pairs on the side wall of the annular rail plate 2. The plug rod 20 is arranged through the socket 19 on the side wall of the closing board 16. The screw sleeve 21 is arranged at one end of the plug rod 20 away from the closing board 16, and the screw sleeve 21 is threadedly connected with the plug rod 20.

[0039] The pressure regulating type closing mechanism 22 includes a pressure regulating cylinder 23, a pressure regulating air bag 24, a one-way exhaust valve 25, a negative pressure pipe 26 and a one-way intake valve 27. The pressure regulating cylinder 23 is arranged on the side wall of the closing plate 16 on one side of the annular insertion plate 15. The one-way intake valve 27 is communicated and arranged on the side of the pressure regulating cylinder 23 close to the annular insertion plate 15. The pressure regulating air bag 24 is communicated and arranged on the side of the one-way intake valve 27 away from the pressure regulating cylinder 23. The one-way exhaust valve 25 is communicated and arranged on the side of the pressure regulating air bag 24 away from the one-way intake valve 27. The negative pressure pipe 26 is communicated and arranged on the side of the pressure regulating cylinder 23 away from the closing plate 16.

[0040] The liquid guiding mechanism 29 includes an inclined frame 30, a liquid storage cylinder 31, a disposable pipe 32, a liquid guiding sleeve ring 33, a sealing rubber sleeve 34 and an anti-slip rubber pad 43. The inclined frame 30 is arranged on the side of the closing plate 16 away from the cleaning slide plate 42. The anti-slip 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, and the liquid storage cylinder 31 is attached to the inner wall of the anti-slip rubber pad 43. The disposable pipe 32 is communicated and arranged on the side of the liquid storage cylinder 31 close to the annular insertion plate 15. The liquid guiding sleeve ring 33 respectively penetrates through the inner wall of the cleaning slide plate 42 and the inner wall of the coating box 10. The sealing rubber sleeve 34 is arranged on the inner wall of the liquid guiding sleeve ring 33 on the inner wall of the cleaning slide plate 42. The liquid storage mechanism 35 includes a liquid extraction pipe 36, a liquid extraction head 37, a threaded cover 38, an adsorption cylinder 39, an adsorption air bag 40, a one-way exhaust valve 41 and a one-way intake valve 44. The adsorption cylinder 39 is arranged on the side wall of the closing plate 16 on the side of the annular insertion plate 15 away from the pressure regulating cylinder 23. The liquid extraction pipe 36 is communicated and arranged on the side of the adsorption cylinder 39 away from the closing plate 16. The liquid extraction head 37 is communicated and arranged on the side of the liquid extraction pipe 36 away from the adsorption cylinder 39. The threaded cover 38 penetrates through the inner wall of the end of the liquid storage cylinder 31 away from the disposable pipe 32, and the threaded cover 38 is threadedly connected to the liquid storage cylinder 31. The one-way intake valve 44 is communicated and arranged on the side of the adsorption cylinder 39 close to the annular insertion plate 15. The adsorption air bag 40 is communicated and arranged on the side of the one-way intake valve 44 away from the adsorption cylinder 39. The one-way exhaust valve 41 is communicated and arranged on the side of the adsorption air bag 40 away from the one-way intake valve 44.

[0041] Sealing gaskets are provided at the contact parts of the annular insertion plate 15, the closing plate 16 with the cleaning slide plate 42 and the bearing base 1, and at the contact part of the closing plate 16 with the annular rail plate 2.

[0042] 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;

[0043] 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;

[0044] 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;

[0045] At this time, insert one end of the negative pressure tube 26 far from the pressure regulating cylinder 23 into the liquid filling tube 6. The medical staff squeezes the pressure regulating airbag 24, and the gas inside the pressure regulating airbag 24 is discharged. When the pressure regulating airbag 24 deforms and resets, it extracts the gas inside the pressure regulating cylinder 23 through the one-way air inlet valve 27. The air pressure inside the pressure regulating cylinder 23 decreases. The pressure regulating cylinder 23 extracts the air inside the coating box 10 through the negative pressure tube 26 and the liquid filling tube 6. The coating box 10 extracts the air inside the sealed cavity formed by the annular plug board 15, the closing board 16, the cleaning slide plate 42, the annular rail plate 2 and the bearing base 1 through the liquid dropping port 11. After the medical staff squeezes the pressure regulating airbag 24 multiple times, the inside of the sealed cavity formed by the annular plug board 15, the closing board 16, the cleaning slide plate 42, the annular rail plate 2 and the bearing base 1 is changed to 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, through the support structure formed by the annular plug board 15, the closing board 16, the cleaning slide plate 42, the annular rail plate 2 and the bearing base 1, it can ensure that the patient's puncture site is not damaged;

[0046] During the hematopoietic stem cell transplantation process, the patient needs to have blood drawn multiple times. The patient's arm is placed vertically. The blood drawing tube 36 and the blood drawing head 37 are located above the disposable tube 32. The disposable tube 32 is connected to the blood drawing end of the indwelling needle extending out of the sealing rubber sleeve 34. Rotate the threaded cap 38, and the threaded cap 38 disengages from the inner wall of the adsorption cylinder 39. The blood drawing tube 36 is connected to the opening of the adsorption cylinder 39 through the blood drawing head 37. The medical staff squeezes the adsorption airbag 40, and the air inside the adsorption airbag 40 is discharged from the one-way exhaust valve 41. When the adsorption airbag 40 deforms and resets, it extracts the air inside the adsorption cylinder 39 through the one-way air inlet valve 44. The air pressure inside the adsorption cylinder 39 decreases. The adsorption cylinder 39 extracts the air inside the liquid storage cylinder 31 through the blood drawing tube 36 and the blood drawing head 37. The internal pressure of the liquid storage cylinder 31 decreases. The liquid storage cylinder 31 uses negative pressure to extract the patient's blood through the liquid storage cylinder 31. The patient's blood enters the disposable tube 32 through the indwelling needle, and the disposable tube 32 transports the blood to the inside of the liquid storage cylinder 31 for storage. When a group of liquid storage cylinders 31 is filled with blood, 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, so as to complete the blood drawing operation on the patient on the premise of ensuring that the outside air does not contact the patient's puncture part; Repeat the above operation when using it next time.

[0047] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0048] The above describes the present solution and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present solution, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design, without creative efforts, structural manners and embodiments similar to the technical solution without departing from the creative concept of the present solution, they shall 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. 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 area 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 one end of the liquid filling mechanism away from the annular track plate, and the locking mechanism is arranged at one end of the closing mechanism close to the annular track plate; The multi-tube blood drawing mechanism includes 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 plug plate and a closing plate, wherein the annular plug 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 plug plate close to the cleaning slide; The liquid filling mechanism also includes a liquid filling tube; The liquid filling pipe penetrates the inner wall of one end of the cleaning slide away from the annular track plate; 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 plate, a plurality of liquid drop ports are arranged on the side of the coating box away from the liquid filling pipe, and the L-shaped plate is symmetrically arranged on the bottom wall of the coating box outside the liquid drop ports; The pressure regulating type sealing mechanism comprises a pressure regulating cylinder, a pressure regulating air bag, a one-way exhaust valve, a negative pressure pipe 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, a one-way air inlet valve is connected to the side of the pressure regulating cylinder close to the annular plug plate, a pressure regulating airbag is connected to the side of the one-way air inlet valve away from the pressure regulating cylinder, a one-way exhaust valve is connected to the side of the pressure regulating airbag away from the one-way air inlet valve, and a negative pressure pipe is connected to the side of the pressure regulating cylinder away from the closing plate.

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

4. 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.

5. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 1, 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.

6. The skin pretreatment device for hematopoietic stem cell transplantation care according to claim 1, 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.

7. 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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