Adjustable plastic hip joint fixing pillow

By designing an adjustable plastic hip joint fixation pillow, and using a support mechanism and threaded rod adjustment rod to adjust the distance between the patient's legs, the problem of incorrect posture when lying on the side after hip replacement surgery is solved, preventing excessive hip flexion and prosthesis dislocation, and providing precise nursing measures.

CN224207015UActive Publication Date: 2026-05-08兴化市人民医院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
兴化市人民医院
Filing Date
2025-05-16
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

After hip replacement surgery, clinical nursing care cannot precisely prevent patients from adopting incorrect postures when lying on their side, which may lead to hip flexion exceeding 90° or the affected limb moving beyond the body's midline, potentially causing prosthesis dislocation.

Method used

An adjustable plastic hip fixation pillow is designed, comprising a support mechanism that adjusts the distance between the first and second support plates via a threaded rod and an adjusting rod, and uses a flexible load-bearing plate to control the distance between the patient's legs, preventing excessive hip flexion and the affected limb from going off the midline.

Benefits of technology

It enables the adjustment of the support structure according to the patient's specific condition, preventing excessive hip flexion and prosthesis dislocation, providing precise nursing methods, and ensuring that the patient maintains the correct posture when lying on their side.

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Abstract

The utility model relates to the field of postoperative care devices, in particular to an adjustable plastic hip joint fixing pillow which comprises a supporting mechanism, the supporting mechanism comprises a first supporting plate and a second supporting plate, and the first supporting plate and the second supporting plate are platy. The tops and the bottoms of the outer walls of the first supporting plate and the second supporting plate are fixedly connected with bearing plates, and the bearing plates are of elastic metal plate structures. Through the supporting mechanism, the distance between the two groups of bearing plates can be adjusted by adjusting the distance between the first supporting plate and the second supporting plate, so as to adapt to the distance between the legs of different patients; through the L-shaped first supporting plate, the situation that the hip joint of the patient bends by more than 90 degrees due to excessive curl-up of the patient is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of postoperative care devices, and in particular to an adjustable plastic hip joint fixation pillow. Background Technology

[0002] Currently, the hip joint is composed of the femoral head and the acetabulum, and is a ball-and-socket joint, a typical ball-and-socket joint. Hip replacement, also known as artificial hip replacement, involves fixing an artificial prosthesis, including the femoral part and the acetabulum part, to normal bone using bone cement and screws to replace the diseased joint and restore the normal function of the patient's hip joint. It is a relatively mature and reliable treatment method.

[0003] The following problems currently exist;

[0004] Currently, patients need a certain adaptation period after hip replacement surgery because the procedure causes varying degrees of damage to surrounding soft tissues. Therefore, it is necessary to avoid situations where hip flexion exceeds 90° and the affected limb extends beyond the body's midline. At present, when patients need to lie on their side, pillows or other obstructions are often placed between their legs to prevent the affected limb from extending beyond the body's midline. However, due to the varying flexibility of different types of pillows and the different distances between a patient's legs when parallel due to their body shape, clinical nursing staff can only place obstructions based on experience to prevent incorrect posture when lying on their side, and cannot provide more precise nursing care based on the specific patient. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0007] Therefore, the first technical problem that this utility model aims to solve is that in clinical nursing, medical staff can only place barriers based on experience to prevent patients from having incorrect body postures when lying on their side, and cannot provide more precise nursing care based on the specific patient.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustable plastic hip joint fixation pillow, including a support mechanism, the support mechanism including a first support plate and a second support plate, the first support plate and the second support plate being plate-shaped, and load-bearing plates being fixedly connected to the top and bottom of the outer walls of the first support plate and the second support plate, the load-bearing plates being elastic sheet metal structures.

[0009] As a preferred embodiment of the adjustable plastic hip joint fixation pillow of this utility model, the outer walls of the first support plate and the second support plate are both provided with threaded rods, the outer walls of the threaded rods are provided with threaded grooves, and the two sets of threaded rods are internally threaded with adjusting rods.

[0010] As a preferred embodiment of the adjustable plastic hip joint fixation pillow of this utility model, the first support plate has an "L" shaped cross section, and the angle of the bending point of the first support plate is less than 90°.

[0011] As a preferred embodiment of the adjustable plastic hip joint fixation pillow of this utility model, the internal thread grooves of the two sets of threaded rods have opposite rotation directions, the two ends of the outer wall of the adjusting rod are provided with threads with opposite rotation directions, and the two ends of the adjusting rod are respectively threaded to the internal threaded rods of the first support plate and the second support plate.

[0012] The beneficial effects of this utility model are:

[0013] The support mechanism allows for adjustment of the distance between the first and second support plates, thereby adjusting the distance between the two sets of load-bearing plates to accommodate the different distances between the legs of different patients.

[0014] The "L"-shaped first support plate prevents the patient from excessively curling up, which could cause the patient's hip joint to flex beyond 90°. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 A schematic diagram of the overall structure of an adjustable plastic hip joint fixation pillow provided by this utility model;

[0017] Figure 2 This is a cross-sectional view of an adjustable plastic hip joint fixation pillow provided by this utility model. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0021] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Example 1

[0023] Reference Figures 1 to 2 This embodiment provides: an adjustable plastic hip joint fixation pillow, including a support mechanism 100. The support mechanism 100 includes a first support plate 101 and a second support plate 102. The first support plate 101 and the second support plate 102 are plate-shaped. The top and bottom of the outer walls of the first support plate 101 and the second support plate 102 are fixedly connected to a load-bearing plate 103. The load-bearing plate 103 is an elastic sheet metal structure.

[0024] Both the outer walls of the first support plate 101 and the second support plate 102 are provided with threaded rods 101a, and the outer walls of the threaded rods 101a are provided with threaded grooves. The two sets of threaded rods 101a are internally threaded with adjusting rods 104. This structure ensures that the first support plate 101 and the second support plate 102 are always in a parallel state, thereby ensuring that the end points of the load-bearing plate 103 are always in the same horizontal plane, thus avoiding the risk of the patient adopting a dangerous posture due to the axial torsion of the load-bearing plate 103.

[0025] The first support plate 101 has an "L" shaped cross section, and the angle at the bend of the first support plate 101 is less than 90°. This structure ensures that if the patient curls up while lying on their side, the patient's torso will touch the other end of the first support plate 101 after the bend, thereby preventing the patient from curling up too much and causing the hip joint to flex beyond 90°, thus preventing the occurrence of prosthesis dislocation.

[0026] The internal threaded grooves of the two sets of threaded rods 101a have opposite rotation directions. The two ends of the outer wall of the adjusting rod 104 are threaded with opposite rotation directions. The two ends of the adjusting rod 104 are respectively threaded to the internal threaded rods 101a on the outer walls of the first support plate 101 and the second support plate 102. By rotating the adjusting rod 104 inside the threaded rods 101a, the distance between the first support plate 101 and the second support plate 102 is controlled. When the distance between the first support plate 101 and the second support plate 102 is shortened, the ends of the two sets of load-bearing plates 103 are compressed, causing them to deform and bend. Through the two sets of bent load-bearing plates 103, the extreme distance between the patient's two legs is controlled, thereby preventing the patient from experiencing prosthesis dislocation due to the affected limb exceeding the human body's midline.

[0027] Working principle: When the patient needs to lie on their side, this utility model is placed between the patient's legs, with the patient facing one end of the first support plate 101. Then, by rotating the adjusting rod 104, the distance between the first support plate 101 and the second support plate 102 is changed. When the distance between the first support plate 101 and the second support plate 102 is shortened, the ends of the two sets of load-bearing plates 103 are compressed, causing them to deform and bend. Through the two sets of bent load-bearing plates 103, the extreme distance between the patient's two legs is controlled, thereby preventing the patient from experiencing prosthesis dislocation due to the affected limb exceeding the midline of the human body.

[0028] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0029] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to the implementation of the present invention) may be omitted.

[0030] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable plastic hip joint fixation pillow, characterized in that: The system includes a support mechanism (100), which includes a first support plate (101) and a second support plate (102). The first support plate (101) and the second support plate (102) are plate-shaped. The top and bottom of the outer walls of the first support plate (101) and the second support plate (102) are fixedly connected to load-bearing plates (103). The load-bearing plates (103) are elastic sheet metal structures.

2. The adjustable plastic hip joint fixation pillow according to claim 1, characterized in that: The outer walls of the first support plate (101) and the second support plate (102) are provided with threaded rods (101a), and the outer walls of the threaded rods (101a) are provided with threaded grooves. The two sets of threaded rods (101a) are internally threaded with adjusting rods (104).

3. The adjustable plastic hip joint fixation pillow according to claim 2, characterized in that: The first support plate (101) has an "L" shaped cross section, and the angle at the bend of the first support plate (101) is less than 90°.

4. The adjustable plastic hip joint fixation pillow according to claim 3, characterized in that: The two sets of threaded rods (101a) have opposite internal thread grooves, and the two ends of the outer wall of the adjusting rod (104) are provided with threads with opposite directions. The two ends of the adjusting rod (104) are respectively threaded to the threaded rods (101a) on the outer walls of the first support plate (101) and the second support plate (102).