Arterial pressure sensor fixation cross adjustment bracket

By designing a cross-shaped adjustment stent to fix the arterial pressure sensor, the problems of inaccurate sensor positioning and displacement were solved, achieving precise positioning of the pressure sensor at the level of the right atrium of the heart, thus improving the accuracy of monitoring data and the efficiency of clinical operation.

CN224671503UActive Publication Date: 2026-08-25安徽理工大学第一附属医院(淮南市第一人民医院)
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Patent Information

Application Number
CN202520928107.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-08-25
Estimated Expiration
2035-05-13

AI Technical Summary

Technical Problem

Existing venous or arterial pressure sensor fixation devices are difficult to quickly and accurately position at the target height and level, and are prone to displacement during patient position changes or transportation, affecting the continuity and accuracy of monitoring data. They also have poor versatility and cannot adapt to the needs of patients of different body types and diverse clinical scenarios.

Method used

An arterial pressure sensor fixing cross-shaped adjustment bracket was designed, including a fixing clip, a vertical rail and a horizontal rail, equipped with vertical and horizontal adjustment mechanisms, and a positioning reference provided by an indicator rod, to achieve precise adjustment and fixation of the pressure sensor, which is suitable for different types of hospital beds.

Benefits of technology

This method achieves precise positioning of the pressure sensor in the fourth intercostal space at the mid-axillary line, eliminating the influence of gravity, ensuring the accuracy and reliability of monitoring data, improving the efficiency and applicability of clinical operations, and reducing the risk of sensor displacement.

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    Figure CN224671503U_ABST
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Abstract

The utility model relates to a kind of arterial pressure sensor fixed cross adjustment support, including fixed clamp, for the middle segment position of fixed pressure sensor, fixed clamp slidingly arranged on vertical rail, vertical adjusting mechanism is provided on vertical rail, vertical adjusting mechanism is used to adjust fixed clamp to move in vertical direction, vertical rail slidingly arranged on horizontal rail, horizontal adjusting mechanism is used to adjust vertical rail to move in horizontal direction, fixed hanger is provided on horizontal rail, fixed hanger is fixed on the bed rail of sickbed, the support by setting vertical rail and horizontal rail, precise adjustment to fixed clamp in vertical and horizontal two directions can be realized, fixed clamp is used for the middle segment position of fixed pressure sensor, medical staff can accurately adjust pressure sensor to the heart (right atrium) horizontal position of flat axillary midline fourth intercostal according to clinical requirement, effectively eliminate the influence of gravity on pressure measurement, ensure the accuracy of monitoring data.
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Description

Technical Field

[0001] This utility model relates to the field of fixation devices, specifically a cross-shaped adjustable stent for fixing an arterial pressure sensor. Background Technology

[0002] In modern clinical diagnosis and treatment, accurate monitoring of arterial pressure is a crucial step in assessing patients' cardiovascular function, guiding fluid management, and treating critically ill patients. Based on anatomical and physiological principles, placing the pressure sensor at the level of the fourth intercostal space along the midaxillary line (i.e., at the level of the right atrium of the heart) effectively eliminates the influence of gravity on pressure measurement, ensuring the accuracy and reliability of the monitoring data, while also meeting the standardized requirements of clinical operation. However, currently used venous or arterial pressure sensor fixation devices have significant limitations. Traditional fixation methods often involve directly attaching the sensor to the bed sheet or bed rail. This type of fixation structure makes it difficult to quickly and accurately position the sensor at the target height and level, leading to increased measurement errors. Furthermore, during clinical procedures such as changes in patient position or transfer, the sensor is prone to displacement, further affecting the continuity and accuracy of monitoring data. In addition, these fixation devices lack versatility, failing to adapt to patients of different body types and diverse clinical scenarios, and thus failing to meet the stringent requirements for high efficiency and accuracy in pressure monitoring in clinical practice. Therefore, there is an urgent need for a pressure sensor fixation device with flexible adjustment capabilities to achieve precise positioning and improve the reliability and convenience of clinical pressure monitoring. Utility Model Content

[0003] In view of the shortcomings of the prior art, an arterial pressure sensor fixed cross-shaped adjustment stent is provided to solve the problems of large measurement error and easy sensor displacement during clinical operations such as changes in patient position and transfer, thereby improving the accuracy of sensor monitoring data.

[0004] To achieve the above and other related objectives, this utility model proposes an arterial pressure sensor fixing cross-shaped adjustment bracket, comprising: A retaining clip is used to fix the middle section of the pressure sensor in place. A vertical track is provided, and the fixing clamp is slidably mounted on the vertical track. A vertical adjustment mechanism is provided on the vertical track, and the vertical adjustment mechanism is used to adjust the movement of the fixing clamp in the vertical direction. A horizontal track is provided, and a vertical track is slidably mounted on the horizontal track. A horizontal adjustment mechanism is provided on the horizontal track, which is used to adjust the vertical track to move in the horizontal direction. A fixing bracket is provided on the horizontal track, and the fixing bracket is fixed to the bed rail of the hospital bed.

[0005] In one embodiment of this utility model, an indicator rod is provided on the fixing clamp, and the end of the indicator rod points horizontally to the position of the fourth intercostal space at the midline of the armpit.

[0006] In one embodiment of this utility model, the indicator rod is a telescopic rod, and the indicator rod is in both vertical and horizontal states.

[0007] In one embodiment of the present invention, the fixing clamp is in the shape of a rectangular groove plate, and a plug block is provided at the middle section of the pressure sensor. The plug block is inserted into the groove cavity of the fixing clamp.

[0008] In one embodiment of this utility model, the groove of the fixing clamp is arranged horizontally along its length.

[0009] In one embodiment of the present invention, the slot of the fixing clamp is provided with flanges extending inward on both sides, and a clamping wedge is provided on the inner side of the flange. The clamping wedge and the bottom of the slot of the fixing clamp form the upper and lower plates for clamping the plug-in block.

[0010] In one embodiment of the present invention, clamping wedges are provided on both sides of the groove of the fixing clamp, the clamping wedges are arranged along the length of the groove of the fixing clamp, and the clamping wedges clamp the two end faces of the plug-in block.

[0011] In one embodiment of this utility model, the vertical adjustment mechanism includes a vertical adjustment screw rotatably mounted on the vertical track. The vertical adjustment screw is arranged parallel to the vertical track. An adjustment nut is provided on the back of the fixing clamp. The vertical adjustment screw cooperates with the adjustment nut. A first adjustment handle is provided at the end of the vertical adjustment screw.

[0012] In one embodiment of this utility model, the horizontal adjustment mechanism includes a horizontal adjustment screw rotatably mounted on the horizontal track. The horizontal adjustment screw is arranged parallel to the horizontal track. A nut is provided on the back of the vertical track. The horizontal adjustment screw cooperates with the nut. A second adjustment handle is provided at the end of the horizontal adjustment screw.

[0013] In one embodiment of this utility model, the fixing bracket includes hooks disposed on the horizontal track, and the hooks are provided in two sets.

[0014] By adopting the above technical solution, the technical effect of this utility model is as follows: This bracket, with its vertical and horizontal tracks and corresponding vertical and horizontal adjustment mechanisms, allows for precise adjustment of the clamp in both vertical and horizontal directions. The clamp secures the pressure sensor in its mid-section, allowing medical staff to precisely adjust it to the level of the right atrium (fourth intercostal space) along the mid-axillary line, effectively eliminating the influence of gravity on pressure measurement and ensuring the accuracy of monitoring data, thus providing a reliable basis for clinical diagnosis and treatment.

[0015] The sliding design fixed to the vertical track, along with the vertical adjustment mechanism, allows medical staff to easily adjust the height of the pressure sensor. Similarly, the sliding mechanism of the vertical track on the horizontal track and the horizontal adjustment mechanism facilitate the adjustment of the sensor's horizontal position. This flexible adjustment method, compared to the traditional method of fixing the sensor to a sheet or bed rail which is difficult to adjust, greatly saves medical staff time and effort in adjusting the sensor's position, thus improving clinical operational efficiency.

[0016] The fixed bracket securely fastens the horizontal track to the bed rail, ensuring the stability of the entire support system and preventing the pressure sensor from easily shaking or shifting during measurement, thus ensuring the reliability of the measurement results. Furthermore, the bracket's design is suitable for various types of hospital beds, from general ward beds to specialized intensive care unit beds, allowing for easy installation and use, demonstrating its wide applicability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0018] Figure 1 and Figure 2 These are schematic diagrams of two different perspectives of the cross-shaped adjustment bracket for fixing the arterial pressure sensor in one embodiment of this utility model. Figure 3 and Figure 4 These are front views of two states of the arterial pressure sensor fixing cross-shaped adjustment bracket in one embodiment of the present invention; Figure 5 This is a schematic diagram of the fixing clip in one embodiment of the present invention; Figure 6 This is a cross-sectional structural diagram of the fixing clip in one embodiment of the present invention. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0020] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] Currently used fixation devices for venous or arterial pressure sensors in clinical practice have significant limitations. Traditional fixation methods often involve directly fixing the sensor to the bed sheet or bed rail. This type of fixation structure makes it difficult to quickly and accurately position the sensor at the target height and horizontal position, leading to increased measurement errors. Furthermore, during clinical procedures such as changes in patient position or transfer, the sensor is prone to displacement, further affecting the continuity and accuracy of monitoring data. Furthermore, such fixation devices have poor versatility and cannot adapt to the needs of patients of different body types and diverse clinical scenarios, making it difficult to meet the stringent requirements for high efficiency and accuracy in pressure monitoring during clinical practice. To address this, a cross-shaped adjustable support for fixing an arterial pressure sensor is proposed, comprising: a fixing clip 10 for fixing the middle section of the pressure sensor; a vertical track 20, on which the fixing clip 10 is slidably mounted, and a vertical adjustment mechanism is provided for adjusting the vertical movement of the fixing clip 10; a horizontal track 30, on which the vertical track 20 is slidably mounted, and a horizontal adjustment mechanism is provided for adjusting the horizontal movement of the vertical track 20; and a fixing bracket is provided on the horizontal track 30, which is fixed to the bed rail.

[0022] In one embodiment, the existing pressure sensor is tubular in shape, with flexible tubing at both ends and a fixing plug at the middle section. The plug is usually made of silicone or plastic. The fixing clip 10 is used to fix the plug at the middle section of the pressure sensor. When the position of the pressure sensor is adjusted, the fixing clip 10 can be adjusted in the vertical plane by the horizontal adjustment mechanism and the vertical adjustment mechanism. This allows the pressure sensor to be adjusted to the level of the fourth intercostal space at the midaxillary line, which is the horizontal position of the heart (right atrium). This effectively eliminates the influence of gravity on pressure measurement and ensures the accuracy of the monitoring data.

[0023] In one embodiment, the position of the fourth intercostal space along the mid-axillary line is determined based on the patient's position while lying flat on the hospital bed. After the patient lies flat on the hospital bed, the fixing clip 10 is adjusted in the vertical plane by the horizontal adjustment mechanism and the vertical adjustment mechanism, so that the middle section of the pressure sensor is located at the fourth intercostal space along the mid-axillary line in the horizontal direction.

[0024] In one embodiment, an indicator rod 40 is provided on the fixing clamp 10, and the end of the indicator rod 40 points horizontally to the position of the fourth intercostal space at the midline of the armpit.

[0025] In the above embodiment, the end of the indicator rod 40 points horizontally to the fourth intercostal space at the mid-axillary line, providing an intuitive visual reference for the positioning of the pressure sensor. In conjunction with the cross-shaped adjustment bracket, the operator can quickly and accurately adjust the pressure sensor to the level of the right atrium of the heart by adjusting the vertical rail 20 and the horizontal rail 30, avoiding positioning errors caused by human judgment deviations, ensuring that the monitoring data accurately reflects the cardiovascular pressure status, and providing a reliable basis for clinical diagnosis and treatment.

[0026] In one embodiment, the indicator rod 40 is a telescopic rod, and the indicator rod 40 is in both vertical and horizontal states.

[0027] In the above embodiments, the indicator rod 40 serves as a telescopic rod, and its length can be adjusted according to actual conditions such as differences in patient body size and changes in bed height, ensuring that the rod end always accurately points to the fourth intercostal space at the mid-axillary line. Simultaneously, the ability to switch between vertical and horizontal states allows it to function flexibly in different operating scenarios. During the installation and debugging phase, the indicator rod can be adjusted to a horizontal state to visually guide the horizontal positioning of the pressure sensor; in situations such as patient transfer or limited bed space, switching to a vertical state reduces space occupation, avoids interference with operation, and allows for rapid deployment for auxiliary positioning when needed, ensuring the accuracy of the sensor's installation position and improving the applicability of the equipment in various clinical environments. The telescopic rod design and dual-state switching effectively solve the problem of inconvenience caused by the large space occupied by the indicating components in traditional fixation devices. When the indicating function is not needed, the indicating rod can be shortened and switched to a vertical position for storage, reducing the occupation of operating space around the bed and facilitating other nursing operations for medical staff; when positioning is required, it can be quickly extended to the appropriate length and adjusted to a horizontal position, providing clear guidance for sensor positioning, achieving a balance between operating space and functional needs, and optimizing clinical operation procedures.

[0028] In one embodiment, the fixing clamp 10 is generally in the shape of a rectangular slot plate, and the pressure sensor plug block is inserted into the slot cavity of the fixing clamp 10.

[0029] In the above embodiments, the fixing clip 10 is generally in the shape of a rectangular slot plate, forming a suitable plug-in structure with the plug-in block of the pressure sensor, making the sensor installation process like "plug and play," without the need for additional tools or complicated operating steps. Medical personnel only need to align the plug-in block with the slot of the fixing clip 10 and insert it to quickly complete the installation and fixation of the sensor, greatly shortening the equipment installation time. This is especially suitable for emergency treatment scenarios, saving valuable treatment time for patients.

[0030] In one embodiment, the groove of the fixing clamp 10 is arranged horizontally in order to ensure that the length direction of the pressure sensor is horizontal.

[0031] In one embodiment, the slot of the fixing clamp 10 is provided with inwardly extending flanges 11 on both sides, and a clamping wedge 111 is provided on the inner side of the flange 11. The clamping wedge 111 and the bottom of the slot of the fixing clamp 10 form the upper and lower plates for clamping the plug-in block.

[0032] In the above embodiment, the flange 11 extends inward and is provided with a clamping wedge 111, forming a clamping structure with the bottom of the groove of the fixing clamp 10, applying a stable clamping force to the plug block of the pressure sensor from the vertical direction. In complex clinical scenarios such as frequent changes in patient position and bumpy transport, this structure can effectively limit the displacement of the plug block in the vertical direction, prevent the sensor from loosening or falling off, ensure the continuity and accuracy of pressure monitoring data, and provide a reliable basis for clinical diagnosis and treatment. The clamping wedge 111 can be adaptively adjusted according to the thickness of the plug block, and can achieve a tight fit for pressure sensors of different specifications through the clamping action of the wedge. This design can be compatible with multiple sensor models without replacing the fixing clamp 10, significantly improving the versatility of the fixation device, reducing the procurement cost of medical equipment, and facilitating medical staff to quickly switch sensors under different diagnostic and treatment needs.

[0033] Similarly, clamping wedges 112 are provided on both sides of the slot of the fixing clamp 10. The clamping wedges 112 are arranged along the length of the slot of the fixing clamp 10 and clamp the two end faces of the plug-in block.

[0034] In the above embodiment, the clamping wedge 112 is arranged along the length of the groove of the fixing clamp 10, forming a three-dimensional clamping structure with the pressing wedges 111 on the upper and lower surfaces of the groove, applying clamping force to the insertion block from multiple directions, including vertical and horizontal. In extreme situations such as violent turning of the patient or bumpy transport, this all-round clamping method can effectively limit the displacement of the sensor in all dimensions. Compared with traditional fixing methods, it greatly reduces the risk of sensor loosening and falling off, ensuring the stability and reliability of arterial pressure monitoring data, and providing a solid data foundation for the assessment of the condition of critically ill patients.

[0035] In one embodiment, to adjust the fixing clamp 10 and the pressure sensor along the vertical direction, the vertical adjustment mechanism includes a vertical adjustment screw 51 rotatably mounted on the vertical track 20. The vertical adjustment screw 51 is arranged parallel to the vertical track 20. An adjustment nut 12 is provided on the back of the fixing clamp 10. The vertical adjustment screw 51 cooperates with the adjustment nut 12. A first adjustment handle 511 is provided at the end of the vertical adjustment screw 51.

[0036] In one embodiment, to adjust the fixing clamp 10 and the pressure sensor along the horizontal direction, the horizontal adjustment mechanism includes a horizontal adjustment screw 61 rotatably mounted on the horizontal rail 30. The horizontal adjustment screw 61 is arranged parallel to the horizontal rail 30. A nut 21 is provided on the back of the vertical rail 20. The horizontal adjustment screw 61 cooperates with the nut 21. A second adjustment handle 611 is provided at the end of the horizontal adjustment screw 61.

[0037] In one embodiment, to fix the entire adjustable bracket to the bed rail position, the fixing bracket includes hooks 31 disposed on the horizontal track 30, and the hooks 31 are provided in two sets.

[0038] In one embodiment, the spacing between the hooks of the hooks 31 is less than the thickness of the bed rail, which can effectively fix the adjustment bracket to the bed rail position and prevent the adjustment bracket from shaking.

[0039] The above description is only a preferred embodiment of this application and an explanation of the technical principles used. Those skilled in the art should understand that the scope involved in this application is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, technical solutions formed by replacing the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0040] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A cross-shaped adjustable stent for fixing an arterial pressure sensor, characterized in that, include: A fixing clip (10) is used to fix the middle section of the pressure sensor; A vertical track (20) is provided, and the fixing clamp (10) is slidably disposed on the vertical track (20). A vertical adjustment mechanism is provided on the vertical track (20), and the vertical adjustment mechanism is used to adjust the movement of the fixing clamp (10) in the vertical direction. A horizontal track (30) is provided, and the vertical track (20) is slidably disposed on the horizontal track (30). A horizontal adjustment mechanism is provided on the horizontal track (30), and the horizontal adjustment mechanism is used to adjust the vertical track (20) to move in the horizontal direction. A fixed bracket is provided on the horizontal track (30), and the fixed bracket is fixed to the bed rail of the hospital bed.

2. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 1, characterized in that: An indicator rod (40) is provided on the fixing clamp (10), and the end of the indicator rod (40) points horizontally to the fourth intercostal space at the midline of the armpit.

3. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 2, characterized in that: The indicator rod (40) is a telescopic rod, and the indicator rod (40) is in both vertical and horizontal states.

4. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 1, characterized in that: The fixing clamp (10) is in the shape of a rectangular slot plate. A plug-in block is provided in the middle section of the pressure sensor. The plug-in block is inserted into the slot cavity of the fixing clamp (10).

5. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 4, characterized in that: The groove of the fixing clamp (10) is arranged horizontally along its length.

6. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 4, characterized in that: The slot of the fixing clamp (10) is provided with flanges (11) extending inward on both sides. A clamping wedge (111) is provided on the inner side of the flange (11). The clamping wedge (111) and the bottom of the slot of the fixing clamp (10) form the upper and lower plates for clamping the plug-in block.

7. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 6, characterized in that: The slot of the fixing clamp (10) is provided with clamping wedges (112) on both sides. The clamping wedges (112) are arranged along the length of the slot of the fixing clamp (10) and clamp the two end faces of the plug-in block.

8. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 1, characterized in that: The vertical adjustment mechanism includes a vertical adjustment screw (51) rotatably mounted on the vertical track (20). The vertical adjustment screw (51) is arranged parallel to the vertical track (20). An adjustment nut (12) is provided on the back of the fixing clamp (10). The vertical adjustment screw (51) cooperates with the adjustment nut (12). A first adjustment handle (511) is provided at the rod end of the vertical adjustment screw (51).

9. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 1, characterized in that: The horizontal adjustment mechanism includes a horizontal adjustment screw (61) rotatably mounted on the horizontal rail (30). The horizontal adjustment screw (61) is arranged parallel to the horizontal rail (30). A nut (21) is provided on the back of the vertical rail (20). The horizontal adjustment screw (61) cooperates with the nut (21). A second adjustment handle (611) is provided at the end of the horizontal adjustment screw (61).

10. The arterial pressure sensor fixing cross-shaped adjustment bracket according to claim 1, characterized in that: The fixed hanging device includes hooks (31) set on the horizontal track (30), and the hooks (31) are provided in two sets.