A skin pretreatment device for hematopoietic stem cell transplantation care
The automated skin pretreatment device enables autonomous disinfection of the indwelling needle site during hematopoietic stem cell transplantation, solving the problems of high cost and lack of timeliness of manual disinfection, and improving the convenience and safety of disinfection.
Patent Information
- Application Number
- CN202610617534.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-10
AI Technical Summary
In existing technologies, the disinfection of the indwelling needle site in the patient's arm during hematopoietic stem cell transplantation requires manual operation, which results in high labor costs, insufficient timeliness, and the risk of infection.
An automated skin pretreatment device including rollers A, B, and C was designed. The device achieves autonomous disinfection of the periphery of the indwelling needle by automatically changing the sterile cotton roll driven by a motor. Patients can operate it themselves, reducing their dependence on medical staff.
It improves the convenience and standardization of disinfection, reduces the probability of infection, reduces the workload of medical staff, lowers the cost of manual care, and ensures the timeliness and safety of disinfection.
Smart Images

Figure CN122350889A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of skin pretreatment equipment technology, specifically to a skin pretreatment device for hematopoietic stem cell transplantation care. Background Technology
[0002] During the process of collecting and reinfusing hematopoietic stem cells into the patient, which takes a long time, the indwelling venous catheter site in the patient's arm needs to be disinfected at certain intervals to avoid infection at the puncture site.
[0003] Currently, the main method of disinfection around the indwelling needle is manual disinfection, which has obvious problems of high labor costs and slightly poor timeliness. Summary of the Invention
[0004] In view of this, the present invention provides a skin pretreatment device for hematopoietic stem cell transplantation care, specifically a pretreatment device equipped with rotating rollers A, B, and C, and using rotating roller B to drive the replacement of sterile cotton rolls; the pretreatment device achieves autonomous disinfection of the skin around the indwelling needle through the setting of an automated disinfection structure; patients can operate the device themselves to complete the disinfection process without relying on medical staff for regular treatment; the pretreatment device has the advantage of reasonable design.
[0005] The technical solution of the present invention is as follows: A skin pretreatment device for hematopoietic stem cell transplantation care includes a mounting plate, a support rod on the bottom surface of the mounting plate, and a contact plate ball-hinged to the bottom end of the support rod. A mounting hole is provided in the middle of the mounting plate, and a processing component is installed in the mounting hole; The processing component includes an integrated plate with a circular track mounted on it, and wheels mounted on the track; a connecting plate is provided outside the wheels, and mounting posts are provided on the connecting plate; the wheels move along the track. A rotating roller A is provided at the bottom of the mounting column, a rotating roller B is provided on one side of the mounting column, and a rotating roller C is provided on the other side; the rotating rollers A, B and C are rotatably connected to the mounting column respectively. The rotating roller B is connected to the motor A; a disinfectant cotton roll is installed on the rotating roller C, and the end of the disinfectant cotton roll is connected to the rotating roller B after passing through the rotating roller A; when the motor A drives the rotating roller B to rotate, the disinfectant cotton roll can be rotated, thereby realizing the replacement of the disinfectant cotton at the position of the rotating roller A. When the skin pretreatment device is in use, the bottom surface of the contact plate contacts the arm; the bottom surface of the rotating roller A contacts the skin; when it is necessary to disinfect the periphery of the indwelling needle, the motor A is started to replace the disinfectant cotton on the outside of the rotating roller A, and then as the walking wheel moves along the track, the disinfectant cotton on the outside of the rotating roller A disinfects the periphery of the indwelling needle; in this way, the patient can operate it himself, reducing the workload of medical staff.
[0006] Preferably, a connecting strap A is provided on one side of the mounting plate, and hook and loop fasteners A and B are provided on the outer side of the connecting strap A, with the hook and loop fastener B close to the end of the connecting strap A; a connecting strap B is provided on the other side of the mounting plate, and a through hole A is provided on the connecting strap B. After the connecting strap A passes through the through hole A, the pretreatment device is fixed to the arm by the cooperation of the hook and loop fasteners B and A.
[0007] Preferably, the support rod includes section A and section B, section A is a hollow structure, and section B is fitted inside section A; a spring is provided on the inner bottom surface of section A, and the end of the spring is connected to section B; the spring provides a certain amount of room for movement and improves the comfort of fixing the pretreatment device to the arm.
[0008] Preferably, the contact plate is a silicone plate to improve contact comfort.
[0009] Preferably, a fixing plate is provided on the inner top surface of the mounting plate, and a through hole B is provided on the fixing plate; a connecting post is provided on the integrated plate, and after the connecting post passes through the mounting hole, it connects the processing component and the mounting plate into a whole; the processing component and the mounting plate can be further connected into a whole by drilling holes, setting threads, etc. on the connecting post.
[0010] Preferably, to avoid the contaminated disinfectant cotton affecting the clean disinfectant cotton, an isolation box A is provided outside the roller B, and an isolation box B is provided outside the roller C. The setting of isolation boxes A and B can effectively prevent contaminated disinfectant cotton from causing cross-contamination to the clean disinfectant cotton roll, ensuring that each piece of cotton used for disinfection is in a sterile and clean state, guaranteeing the disinfection effect from the source, which is especially suitable for scenarios where hematopoietic stem cell transplant patients have low immunity and extremely high requirements for infection control.
[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The pretreatment device of the present invention can replace the traditional manual interval disinfection method. By using the support rod and the contact plate with the ball joint of the support rod, the stability of the pretreatment device during use is improved. It can also allow air circulation at the indwelling needle position, reduce the accumulation of moisture and heat at the indwelling needle position, reduce the possibility of infection, and improve the safety of use.
[0012] 2. The pretreatment device of the present invention utilizes the driving action of rotating rollers A, B, and C, as well as motor A, to achieve automatic replacement of the disinfectant cotton rolls, eliminating the need for manual replacement. Furthermore, the disinfection device can be operated by the patient without the assistance of medical personnel, improving operational convenience. Simultaneously, as the traveling wheels move along the track, they drive rotating roller A to perform regular movements around the indwelling needle, resulting in more even and comprehensive wiping of the skin with the disinfectant cotton. Compared to the uneven pressure and uncertain coverage of manual disinfection, this significantly improves the standardization and effectiveness of the disinfection operation, further reducing the probability of infection.
[0013] 3. The pretreatment device provided by this invention has the advantages of reasonable design, strong practicality, and convenient use. Using this pretreatment device can reduce the dependence of medical staff on the disinfection process around the indwelling needle, reduce the cost of manual care, achieve timely disinfection, reduce the risk of infection caused by untimely disinfection of the puncture wound, and improve the safety of nursing care. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of the present invention.
[0016] Figure 2 This is a cross-sectional view of the preprocessing unit.
[0017] Figure 3 This is a side view of the preprocessing unit.
[0018] Figure 4 This is a schematic diagram of the processing component.
[0019] Figure 5 This is a partial schematic diagram of the processing component.
[0020] In the diagram, 1-mounting plate; 2-connecting strap A; 3-Hook and loop fastener A; 4-Hook and loop fastener B; 5-connecting strap B; 6-through hole A; 701-section A; 702-section B; 8-contact plate; 9-mounting hole; 10-fixing plate; 1101-integrated plate; 1102-connecting column; 1103-circular track; 1104-walking wheel; 1105-connecting plate; 1106-mounting column; 1107-rotating roller A; 1108-rotating roller B; 1109-rotating roller C; 12-isolation box A; 13-isolation box B; 14-through hole B; 15-disinfecting cotton roll; 1601-section C; 1602-section D. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of this invention will be clearly and completely described below in conjunction with the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.
[0022] Combination Figures 1-5 The present invention provides a skin pretreatment device for hematopoietic stem cell transplantation care, including a mounting plate 1; the mounting plate 1 is arc-shaped; A connecting strap A2 is provided on one side of the mounting plate 1. Hook and loop fasteners A3 and B4 are provided on the outer surface of the connecting strap A2. Hook and loop fastener A3 has a rough surface structure, and hook and loop fastener B4 has a hook surface structure. Hook and loop fastener B4 is located near the end of the connecting strap A2. A connecting strap B5 is provided on the other side of the mounting plate 1. A through hole A6 is provided on the connecting strap B5. After the connecting strap A2 passes through the through hole A6, the pretreatment device is fixed to the arm by the cooperation of hook and loop fasteners B4 and A3. Among them, connecting strap A2 and connecting strap B5 are both made of medical nylon webbing, which has good flexibility and tensile strength, and the surface of the webbing is treated with antibacterial agents. Four support rods are provided on the bottom surface of the mounting plate 1, and the bottom end of each support rod is ball-hinged with a contact plate 8. The support rod includes section A 701 and section B 702. Section A 701 is a hollow structure, and section B 702 is fitted inside section A 701. A spring is provided on the inner bottom surface of section A 701, and the end of the spring is connected to section B 702. The spring provides a certain amount of room for movement, improving the comfort of fixing the pretreatment device to the arm. The contact plate 8 is a silicone plate. With the connection structure with the ball joint, the contact plate 8 can adapt to the curved contour of the patient's arm, ensuring the fit between the contact plate 8 and the skin, and further improving the comfort of contact. A mounting hole 9 is provided in the middle of the mounting plate 1, and a fixing plate 10 is provided on the inner top surface of the mounting plate 1. A through hole B14 is provided on the fixing plate 10. A processing component is installed inside mounting hole 9; The processing component includes an integrated plate 1101, on which a connecting post 1102 is provided. After the connecting post 1102 passes through the mounting hole 9, it connects the processing component and the mounting plate 1 into a whole. The connecting post 1102 can be further connected to the processing component and the mounting plate 1 into a whole by drilling holes, setting threads, etc., as needed by the technicians. A circular track 1103 is installed on the integrated plate 1101, and a traveling wheel 1104 is installed on the track; a connecting plate 1105 is provided on the outside of the traveling wheel 1104, and a mounting column 1106 is provided on the connecting plate 1105; the traveling wheel 1104 moves along the track 1103. In this invention, a motor B is provided on the connecting plate 1105, and the motor B drives the walking wheel 1104 to move along the circular track 1103; wherein, the motor A driving the rotating roller B to rotate and the motor B driving the walking wheel 1104 to move along the circular track 1103 are existing technologies and will not be described in detail. A rotating roller A1107 is provided at the bottom end of the mounting column 1106, a rotating roller B1108 is provided on one side of the mounting column 1106, and a rotating roller C1109 is provided on the other side; the rotating rollers A1107, B1108 and C1109 are rotatably connected to the mounting column 1106 respectively. In this embodiment, the rotating roller B1108 is rotatably mounted on two opposing vertical plates A, both of which are mounted on the mounting column 1106. The rotating roller C1109 is rotatably mounted on two opposing vertical plates B, both of which are mounted on the mounting column 1106; The rotating roller A1107 is rotatably mounted on two oppositely arranged uprights, which are set on the bottom end face of the mounting column 1106; To enable the disinfectant cotton on the outside of the rotating roller A1107 to better disinfect the skin surface, the upright includes section C 1601 and section D 1602. The top of section D 1602 is located inside section C 1601, and section C 1601 and section D 1602 are connected by a spring. This arrangement allows the rotating roller A1107 to have a certain amount of room to move and better fit the skin surface. Rotary roller B1108 is connected to motor A; a disinfectant cotton roll 15 is installed on rotary roller C1109, and the end of the disinfectant cotton roll 15 is connected to rotary roller B1108 after passing through rotary roller A1107; when motor A drives rotary roller B1108 to rotate, the disinfectant cotton roll 15 can be rotated, thereby realizing the replacement of the disinfectant cotton at the position of rotary roller A1107. To prevent used disinfectant cotton from affecting clean disinfectant cotton, an isolation box A12 is installed on the outside of roller B1108, and an isolation box B13 is installed on the outside of roller C1109. The isolation boxes A12 and B13 can effectively prevent contaminated disinfectant cotton from causing cross-contamination to clean disinfectant cotton rolls, ensuring that each piece of cotton used for disinfection is in a sterile and clean state, thus guaranteeing the disinfection effect from the source. This is especially suitable for scenarios where hematopoietic stem cell transplant patients have low immunity and extremely high requirements for infection control. Isolation boxes A12 and B13 are equipped with inlets and outlets for disinfectant cotton, which facilitates the smooth replacement of disinfectant cotton by the drive of the rotating roller B1108; When the skin pretreatment device is in use, the bottom surface of the contact plate 8 contacts the arm; the bottom surface of the rotating roller A1107 contacts the skin; when it is necessary to disinfect the periphery of the indwelling needle, the motor A is started to replace the disinfectant cotton on the outside of the rotating roller A1107, and then as the walking wheel 1104 moves along the track 1103, the disinfectant cotton on the outside of the rotating roller A1107 disinfects the periphery of the indwelling needle; in this way, the patient can operate it himself, reducing the workload of medical staff.
[0023] Although the present invention has been described in detail with reference to preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.
Claims
1. A skin pretreatment device for hematopoietic stem cell transplantation care, characterized in that, Includes a mounting plate, on the bottom surface of which is a support rod, and the bottom end of the support rod is ball-jointed with a contact plate; A mounting hole is provided in the middle of the mounting plate, and a processing component is installed in the mounting hole; The processing component includes an integrated plate with a circular track mounted on it, and a traveling wheel mounted on the circular track; a connecting plate is provided outside the traveling wheel, and a mounting post is provided on the connecting plate; the traveling wheel moves along the circular track. A rotating roller A is provided at the bottom of the mounting column, a rotating roller B is provided on one side of the mounting column, and a rotating roller C is provided on the other side; the rotating rollers A, B and C are rotatably connected to the mounting column respectively. The rotating roller B is connected to the motor A; a disinfectant cotton roll is installed on the rotating roller C, and the end of the disinfectant cotton roll is connected to the rotating roller B after passing through the rotating roller A; when the motor A drives the rotating roller B to rotate, the disinfectant cotton at the position of the rotating roller A can be automatically replaced.
2. The skin pretreatment device for hematopoietic stem cell transplantation nursing as described in claim 1, characterized in that, A connecting strap A is provided on one side of the mounting plate, and Velcro A and Velcro B are provided on the outer surface of the connecting strap A, with Velcro B close to the end of the connecting strap A; a connecting strap B is provided on the other side of the mounting plate, and a through hole A is provided on the connecting strap B, through which the connecting strap A can pass.
3. The skin pretreatment device for hematopoietic stem cell transplantation nursing as described in claim 1, characterized in that, The support rod includes section A and section B. Section A is a hollow structure, and section B is fitted inside section A. A spring is provided on the inner bottom surface of section A, and the end of the spring is connected to section B.
4. The skin pretreatment device for hematopoietic stem cell transplantation nursing as described in claim 1, characterized in that, The contact plate is a silicone plate.
5. The skin pretreatment device for hematopoietic stem cell transplantation nursing care as described in claim 1, characterized in that, A fixing plate is provided on the inner top surface of the mounting plate, and a through hole B is provided on the fixing plate; a connecting post is provided on the integration plate, and after the connecting post passes through the mounting hole, it connects the processing component and the mounting plate into a whole.
6. The skin pretreatment device for hematopoietic stem cell transplantation nursing care as described in claim 1, characterized in that, An isolation box A is provided outside the roller B, and an isolation box B is provided outside the roller C.
