Upper limb fixing frame for hemodialysis
By designing clamping and buffer components that adapt to different upper limb sizes, and combining them with a heating module, the hemodialysis upper limb fixation frame solves the problems of uneven limb pressure and poor comfort caused by traditional fixation methods, achieving precise fixation and a comfortable dialysis process.
Patent Information
- Application Number
- CN202520012917.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-03
AI Technical Summary
In current hemodialysis procedures, traditional upper limb fixation methods are not precise, resulting in uneven pressure on the limbs, affecting blood circulation and causing poor comfort, which cannot meet the patient's comfort and safety needs.
A hemodialysis upper limb fixation frame was designed, which includes a clamping component and a buffer component. The clamping component adapts to different upper limb sizes through structures such as a support shell and a positioning rod. The buffer component maintains stability and comfort through the linkage between the slider and the bladder, and adjusts the temperature in conjunction with the heating module.
It achieves precise fixation and stable clamping of the upper limb, improving patient comfort and dialysis effectiveness, and facilitating medical and nursing procedures.
Smart Images
Figure CN223817807U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a hemodialysis upper limb fixing frame. BACKGROUND
[0002] During hemodialysis, the upper limbs of patients need to be fixed for a long time to ensure the stability of the puncture needle, avoid displacement and falling out, and affect the dialysis effect and possibly cause complications. However, the traditional fixing method has many disadvantages, such as inaccurate fixing by ordinary restraint belts, uneven pressure on the limbs, affecting blood circulation, poor comfort, and difficulty for patients to endure long-term treatment, increasing anxiety and restlessness, and affecting cooperation.
[0003] At present, there is a lack of upper limb fixing frames with strong pertinence and humanized design on the market, which cannot meet the dual needs of patients for comfort and safety. Therefore, it is extremely necessary to design a hemodialysis upper limb fixing frame that can accurately fix, ensure blood circulation, improve patient comfort, and facilitate medical operation. UTILITY MODEL CONTENTS
[0004] In view of the above situation, in order to overcome the defects that the prior art cannot fix the upper limbs with pertinence and cannot ensure the comfort of patients.
[0005] The utility model adopts the technical scheme as follows: a hemodialysis upper limb fixing frame, comprising a base and a clamping assembly arranged on the base, the clamping assembly being used to realize the universality of the fixing frame; further comprising a buffer assembly arranged on the base, the buffer assembly being used to determine the stable fixation of the upper limbs while maintaining the temperature.
[0006] Further, the clamping assembly comprises a support shell one, a support shell two, a support block one and a support block two, the support shell one is fixedly connected to the upper end of the base, the support shell two is arranged on the upper part of the support shell one, the support block one is fixedly connected to one side of the support shell one, the support block two is fixedly connected to one side of the support shell two, the lower end of the support block two is fixedly connected with a positioning rod along the central axis of the base, a positioning hole matched with the positioning rod is formed in the upper end of the support block one, a positioning fence matched with the positioning rod is arranged at the position of the positioning hole in the lower end of the support block one, a fixing bolt is threadedly connected to the positioning rod, a spring is arranged between the support block one and the support block two, and a capsule one is bonded to the inner side of the support shell.
[0007] Further, the buffer assembly comprises a sliding block and a double helix screw rod, a sliding groove is formed in the inner side of the support shell two, the oppositely arranged sliding blocks are slidingly arranged in the sliding groove, the double helix screw rod is penetratingly arranged in the sliding groove, the extending end of the double helix screw rod is power-connected with the power shaft of a rotary motor, the rotary motor is fixedly connected to the outer side of the support shell two, a capsule two is arranged at the lower end of the sliding block, and the capsule one and the capsule two are connected with a heating module through a conduit.
[0008] Furthermore, the first support shell and the second support shell are arranged in an arc shape, and the inner sides of the first support shell and the second support shell are adapted to each other.
[0009] Furthermore, the positioning rod is provided with a threaded rod, and the positioning enclosure is provided with a threaded enclosure that matches the threaded rod.
[0010] Furthermore, the spring is sleeved on the positioning rod, with one end of the spring contacting the upper end of the first support block and the other end of the spring contacting the lower end of the second support block.
[0011] Furthermore, the heating module includes a heating plate, an inlet pump, and an outlet pump. A closed heating chamber is provided on the outside of the support shell. The plurality of heating plates are fixedly connected to the inside of the heating chamber. The inlet pump is fixedly connected to one side of the heating chamber, and the outlet pump is fixedly connected to the other side of the heating chamber. A temperature control device is provided on the outside of the heating chamber.
[0012] Furthermore, the inlet end of the water inlet pump is connected to one side of the first and second bladders respectively via a conduit, the outlet end of the water inlet pump is connected to the heating chamber, the inlet end of the water outlet pump is connected to the heating chamber, and the outlet end of the water outlet pump is connected to the other side of the first and second bladders respectively via a conduit.
[0013] Furthermore, a fixing rod is fixedly connected at intervals along the central axis of the base at the lower end of the base, and a microprocessor is provided on the outside of the base. The microprocessor is electrically connected to the temperature control device and the rotary motor respectively through wires.
[0014] The beneficial effects of this utility model after adopting the above structure are as follows:
[0015] (1) By linking the support shell 1, support shell 2, support block 1 and support block 2 in the clamping assembly with the positioning rod and positioning barrier, it can adapt to different upper limb thicknesses and ensure the stability of subsequent clamping.
[0016] (2) By linking the slider and double helical screw in the buffer assembly with the first bag, the second bag and the heating module, the patient's comfort is improved while stabilizing the puncture position, ensuring smooth dialysis and facilitating medical and nursing operations. Attached Figure Description
[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the half-section structure of this utility model. Figure One ;
[0020] Figure 3 is a half-split structure schematic of the utility model Figure Two ;
[0021] Figure 4 is a half-split structure schematic of the utility model Figure Three ;
[0022] Figure 5 is a half-split structure schematic of the utility model Figure Four ;
[0023] Figure 6 is the A part enlarged view of Figure 1 ;
[0024] Figure 7 is the B part enlarged view of Figure 2 .
[0025] In the drawings: 1, base, 2, support shell one, 3, support shell two, 4, support block one, 5, support block two, 6, positioning rod, 7, positioning fence, 8, fixed peg, 9, spring, 10, capsule one, 11, thread one, 12, thread two, 13, sliding block, 14, double helix screw rod, 15, rotary motor, 16, capsule two, 17, heating plate, 18, water inlet pump, 19, water outlet pump, 20, temperature control device, 21, fixed rod. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] It should be noted that, in this document, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between or among the entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0028] As Figure 1As shown, a hemodialysis upper limb fixation frame includes a base 1 and a clamping assembly disposed on the base 1, the clamping assembly being used to achieve the versatility of the fixation frame; it also includes a buffer assembly disposed on the base 1, the buffer assembly being used to ensure stable fixation of the upper limb while maintaining temperature, and is made of lightweight, high-strength aluminum alloy to meet the needs of different patient positions.
[0029] like Figures 2-4 As shown in -5-6-7, the clamping assembly includes a first support shell 2, a second support shell 3, a first support block 4, and a second support block 5. The first support shell 2 is fixed to the upper end of the base 1, the second support shell 3 is located on the upper part of the first support shell 2, the first support block 4 is fixed to one side of the first support shell 2, and the second support block 5 is fixed to one side of the second support shell 3. A positioning rod 6 is symmetrically fixed to the lower end of the second support block 5 along the central axis of the base 1. A positioning hole matching the positioning rod 6 is opened on the first support block 4. A positioning guard 7 matching the positioning rod 6 is provided at the lower end of the first support block 4 at the positioning hole position. A fixing bolt 8 is threadedly connected to the positioning rod 6. A spring 9 is provided between the first support block 4 and the second support block 5. A bladder 10 is bonded to the inner side of the support shell.
[0030] Among them, the support shell 1 2 and the support shell 2 3 are arranged in an arc shape, and the inner sides of the support shell 1 2 and the support shell 2 3 are matched with each other. The positioning rod 6 is provided with a thread 11, and the positioning enclosure 7 is provided with a thread 2 12 that matches the thread 11. The spring 9 is sleeved on the positioning rod 6. One end of the spring 9 contacts the upper end of the support block 1 4, and the other end of the spring 9 contacts the lower end of the support block 2 5. It can adapt to different upper limb thicknesses and ensure the stability of subsequent clamping.
[0031] like Figures 2-3 As shown in -4-5-6, the buffer assembly includes a slider 13 and a double helical screw 14. A groove is provided on the inner side of the support shell 2 3. The slider 13 is slidably disposed in the groove. The double helical screw 14 is disposed through the groove. The extended end of the double helical screw 14 is poweredly connected to the power shaft of the rotary motor 15. The rotary motor 15 is fixed to the outer side of the support shell 2 3. A second bladder 16 is provided at the lower end of the slider 13. A heating module is connected to the first bladder 10 and the second bladder 16 through a conduit.
[0032] The heating module comprises a heating plate 17, a water inlet pump 18 and a water outlet pump 19, the outer side of the supporting shell is provided with a closed heating cavity, a plurality of heating plates 17 are fixedly connected in the heating cavity, the water inlet pump 18 is fixedly connected to one side of the heating cavity, the water outlet pump 19 is fixedly connected to the other side of the heating cavity, the outer side of the heating cavity is provided with a temperature control device 20, the water inlet end of the water inlet pump 18 is communicated with one side of the capsule one 10 and the capsule two 16 through a pipeline respectively, the water outlet end of the water inlet pump 18 is communicated with the heating cavity, the water inlet end of the water outlet pump 19 is communicated with the heating cavity, and the water outlet end of the water outlet pump 19 is communicated with the other side of the capsule one 10 and the capsule two 16 through a pipeline respectively, a fixed rod 2121 is fixedly connected to the lower end of the base 1 along the central axis of the base 1, the outer side of the base 1 is provided with a microprocessor, the microprocessor is electrically connected with the temperature control device 20 and the rotating motor 15 through wires, the microprocessor controls the rotating motor 15 to drive the double helical screw rod 14 to rotate, so that the sliding block 13 moves in the same direction or opposite directions, and the water outlet pump 19 is used for water filling of the capsule one 10 and the capsule two 16, the water filling of the capsule one 10 and the capsule two 16 ensures the stability of the treatment part under the mutual clamping action on the upper limbs, and the water filling amount in the capsule one 10 and the capsule two 16 is controlled by the microprocessor and the water outlet pump 19, so that the upper limbs are prevented from being excessively pressed due to excessive water filling.
[0033] The capsule one 10 and the capsule two 16 are made of soft and skin-friendly silica gel material, when heating is needed, the water outlet pump 19 is used for pumping water into the capsule one 10 and the capsule two 16, the water inlet pump 18 is used for pumping water from the capsule one 10 and the capsule two 16 back to the heating cavity, the water is heated by the plurality of heating plates 17, and then pumped back into the capsule one 10 and the capsule two 16 by the water outlet pump 19, and the above steps are repeated to ensure constant temperature.
[0034] When the treatment is stopped, the microprocessor controls the water inlet pump 18 to pump the water in the capsule one 10 and the capsule two 16 back to the heating cavity, and the heating function is turned off.
[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents. In general, if those skilled in the art are inspired by the present application, without departing from the creative purpose of the present application, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the present application.
Claims
1. A hemodialysis upper limb fixation frame, characterized in that: It includes a base (1) and a clamping assembly disposed on the base (1), the clamping assembly being used to achieve the versatility of the fixation frame; it also includes a buffer assembly disposed on the base (1), the buffer assembly being used to ensure stable fixation of the upper limb while maintaining temperature.
2. The upper limb fixation frame for hemodialysis according to claim 1, characterized in that: The clamping assembly includes a first support shell (2), a second support shell (3), a first support block (4), and a second support block (5). The first support shell (2) is fixed to the upper end of the base (1). The second support shell (3) is located on the upper part of the first support shell (2). The first support block (4) is fixed to one side of the first support shell (2). The second support block (5) is fixed to one side of the second support shell (3). The lower end of the second support block (5) is symmetrically fixed with a positioning rod (6) along the central axis of the base (1). The first support block (4) has a positioning hole that matches the positioning rod (6). The lower end of the first support block (4) is provided with a positioning guard (7) that matches the positioning rod (6) at the positioning hole position. The positioning rod (6) is threaded with a fixing bolt (8). A spring (9) is provided between the first support block (4) and the second support block (5). A bladder (10) is glued to the inner side of the support shell.
3. The upper limb fixation frame for hemodialysis according to claim 2, characterized in that: The first support shell (2) and the second support shell (3) are arranged in an arc shape, and the inner sides of the first support shell (2) and the second support shell (3) are matched with each other.
4. The upper limb fixation frame for hemodialysis according to claim 2, characterized in that: The positioning rod (6) is provided with a thread 1 (11), and the positioning enclosure (7) is provided with a thread 2 (12) that matches the thread 1 (11).
5. The upper limb fixation frame for hemodialysis according to claim 2, characterized in that: The spring (9) is sleeved on the positioning rod (6). One end of the spring (9) is in contact with the upper end of the support block one (4), and the other end of the spring (9) is in contact with the lower end of the support block two (5).
6. The upper limb fixation frame for hemodialysis according to claim 2, characterized in that: The buffer assembly includes a slider (13) and a double helical screw (14). The inner side of the second support shell (3) is provided with a groove. The slider (13) is slidably disposed in the groove. The double helical screw (14) is disposed through the groove. The extended end of the double helical screw (14) is poweredly connected to the power shaft of the rotary motor (15). The rotary motor (15) is fixed to the outer side of the second support shell (3). The lower end of the slider (13) is provided with a second bladder (16). The first bladder (10) and the second bladder (16) are connected to a heating module through a conduit.
7. The upper limb fixation frame for hemodialysis according to claim 6, characterized in that: The heating module includes a heating plate (17), an inlet pump (18), and an outlet pump (19). The outer side of the support shell is provided with a closed heating chamber. The heating plates (17) are fixed inside the heating chamber. The inlet pump (18) is fixed to one side of the heating chamber. The outlet pump (19) is fixed to the other side of the heating chamber. The outer side of the heating chamber is provided with a temperature control device (20).
8. The upper limb fixation frame for hemodialysis according to claim 7, characterized in that: The inlet end of the water pump (18) is connected to one side of the first bladder (10) and the second bladder (16) respectively through a conduit. The outlet end of the water pump (18) is connected to the heating chamber. The inlet end of the outlet pump (19) is connected to the heating chamber. The outlet end of the outlet pump (19) is connected to the other side of the first bladder (10) and the second bladder (16) respectively through a conduit.
9. A hemodialysis upper limb fixation frame according to claim 6, characterized in that: The lower end of the base (1) is fixedly connected with a fixing rod (21) at intervals along the central axis of the base (1). A microprocessor is provided on the outside of the base (1). The microprocessor is electrically connected to the temperature control device (20) and the rotary motor (15) respectively through wires.