Artery puncture auxiliary positioning device
By combining a pressure sensor array and a guide unit, the problem of inaccurate arterial puncture positioning is solved, enabling rapid and accurate arterial positioning and puncture, thus improving the puncture success rate and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-03-17
AI Technical Summary
In existing technologies, it is difficult to accurately locate arteries during puncture, especially for obese or circulatory patients, resulting in low puncture success rates, increased risk of infection, and time consumption.
The design incorporates a pressure sensor array and a display unit combined with a guide unit. The pressure sensor array measures arterial pressure data and displays the strongest position on the display unit. The guide unit guides the position and angle of the puncture needle.
It enables rapid and accurate determination of arterial location, reduces puncture difficulty, increases success rate, and enhances user experience and comfort.
Smart Images
Figure CN223994954U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology and relates to an arterial puncture auxiliary positioning device. Background Technology
[0002] In clinical practice, arterial puncture is usually performed by doctors palpating the artery to determine the strength of the arterial pulsation. However, relying solely on palpation to determine the location of the artery is often not accurate enough, especially for obese patients, those with poor arterial conditions, or those with unstable circulation. It is difficult to feel the arterial pulsation by touch, making it difficult to accurately locate the artery. This increases the difficulty of arterial puncture, resulting in a low success rate and requiring repeated arterial punctures. This not only increases the risk of infection but also consumes a lot of time, affecting the efficiency of medical and nursing care. Utility Model Content
[0003] Based on the above analysis, the present invention aims to provide an arterial puncture auxiliary positioning device to solve the technical problem of the difficulty in accurately locating the artery during arterial puncture.
[0004] The purpose of this utility model is mainly achieved through the following technical solutions.
[0005] This invention provides an arterial puncture auxiliary positioning device, comprising a detection unit, a display unit, and a guide unit. The detection unit includes a pressure sensor array; multiple sensors in the pressure sensor array are evenly arranged along a straight line to measure arterial pressure data in different areas of the skin surface to be punctured along the array direction. The display unit includes a display screen located above the pressure sensor array; the display screen has multiple display areas, each aligned vertically with one of the sensors; each display area displays only the measurement results of the aligned sensors, thus enabling the determination of the location with the strongest pulse fluctuation below the detection unit. The guide unit includes a guide plate with guide grooves for guiding the puncture position and tilt angle of the puncture needle.
[0006] The guide plate can slide along the arrangement direction of the display area, so that the guide groove is aligned with the position of the strongest pulse fluctuation displayed on the screen.
[0007] Furthermore, the guide unit also includes a slide bar, which is parallel to the array direction of the pressure sensor array.
[0008] Furthermore, one end of the guide plate is slidably connected to the slide rod to adjust the position of the guide groove.
[0009] Furthermore, the slide bar is cylindrical, and the guide plate can rotate around the slide bar.
[0010] Furthermore, a support is provided inside the guide groove, and the surface of the support is inclined to the bottom plane of the detection unit to guide the angle at which the puncture needle is inclined to the skin during puncture.
[0011] Furthermore, the display screen is tilted to the detection surface of the pressure sensor array and its bottom edge abuts against one side of the pressure sensor array.
[0012] Furthermore, the pressure sensor array has a measurement length of 10 mm and contains 10 sensors.
[0013] Furthermore, it also includes a handheld unit; the lower section of the handheld unit is a gripping section, which is inclined to the detection surface at the bottom of the detection unit.
[0014] Furthermore, the lower section of the handheld unit is a limiting section, and a limiting part is provided below the limiting section. The lower surface of the limiting part is curved and can fit into the web of the hand.
[0015] Furthermore, the pressure sensor array employs a piezoelectric thin-film sensor.
[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:
[0017] 1. In the embodiments of this utility model, by aligning the positions of multiple display areas and multiple sensor units vertically, the location of the maximum arterial pressure data can be intuitively obtained on the display screen without the need for doctors to compare the values. This allows for intuitive, fast, and accurate determination of the location of the artery, reducing errors in the judgment process, improving identification accuracy, and enhancing the user experience.
[0018] 2. In the embodiments of this utility model, by setting a guide part that can match the position of the measurement result, the puncture position and angle of the puncture needle can be directly guided, further reducing the difficulty of puncture.
[0019] 3. In the embodiments of this utility model, by using a piezoelectric thin film sensor, it is possible to obtain accurate locations with different pressure values and to make flexible contact with the skin, thereby improving the accuracy and comfort of arterial positioning.
[0020] 4. In the embodiments of this utility model, since the display screen is tilted to the detection plane of the pressure sensor array and its bottom edge abuts against one side of the pressure sensor array, the puncture position displayed on the display screen can be close to the skin, so as to more accurately determine the arterial puncture position on the skin, without affecting the circuit arrangement between the display screen and the pressure sensor array; in addition, it can also make it convenient for doctors to clearly and accurately observe the display results from above the puncture position.
[0021] 5. In the embodiments of this utility model, by setting a curved surface that fits the web of the hand, the position of the detection unit on the skin can be made more stable, so as to achieve the purpose of quickly and accurately obtaining the artery position.
[0022] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the arterial puncture auxiliary positioning device according to an embodiment of the present invention;
[0024] Figure 2 This is a schematic diagram of the display unit according to an embodiment of the present utility model;
[0025] Figure 3 This is a schematic diagram of the array sensor structure according to an embodiment of the present invention;
[0026] Figure 4 This is a schematic diagram of the structure of the guide unit in an embodiment of the present utility model.
[0027] Figure label:
[0028] 1-Detection unit; 11-Pressure sensor array; 111-Sensor unit; 2-Display unit; 21-Display screen; 211-Display area; 3-Guide unit; 31-Guide plate; 311-Guide groove; 3111-Support part; 32-Slide rod; 4-Handheld unit; 41-Grip section; 42-Limit section; 421-Limit part; 5-Switch. Detailed Implementation
[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.
[0030] like Figure 1 As shown, this embodiment provides an arterial puncture auxiliary positioning device, including a detection unit 1, a display unit 2, and a main controller; the detection unit 1, display unit 2, guide unit 3, and main controller are all fixed on the outer shell of the device.
[0031] like Figure 3As shown, the detection unit 1 includes a pressure sensor array 11, which is located on the bottom surface of the device; multiple sensor units in the pressure sensor array 11 are evenly arranged along a straight line to measure arterial pressure data in different areas of the skin surface to be punctured along the array direction.
[0032] like Figure 2 As shown, the display unit 2 includes a display screen 21. The length of the display area of the display screen 21 is not less than the length of the pressure sensor array 11. The display screen 21 is located above the pressure sensor array 11. The display interface of the display screen 21 has multiple display areas 211. The positions of the multiple display areas 211 are respectively aligned vertically with the multiple sensor units 111. Each display area 211 is only used to display the measurement results of the relatively aligned sensor units 111, thereby enabling the determination of the position with the strongest pulse fluctuation below the detection unit 1.
[0033] The guide unit 3 includes a guide plate 31, which has a guide groove 311. The guide groove 311 is used to guide the puncture position and tilt angle of the puncture needle. The guide plate 31 can slide along the arrangement direction of the display area 211 so that the guide groove 311 is aligned with the position of the strongest pulse fluctuation displayed on the display screen 21.
[0034] Before using this auxiliary positioning device for puncture, the detection unit 1 is first placed on the skin at the puncture site, with the array direction of the pressure sensor array 11 perpendicular to the direction of the artery. When the detection unit 1 measures, each sensor unit 111 feeds back the measured pressure value to the main controller. The main controller sends a display command to the display screen 21 according to a pre-set program. The doctor determines the location of the strongest pulse fluctuation based on the results displayed in different display areas 211. Based on the display results on the display screen 21, the sliding guide plate 31 aligns the guide groove 311 with the location of the strongest pulse fluctuation displayed on the display screen 21. After alignment, the guide groove 311 is located above the artery, and the puncture point on the skin is located within the guide groove 311. Arterial puncture can then be successfully completed according to the puncture point guided by the guide groove 311.
[0035] The arterial puncture auxiliary positioning device of this embodiment, by aligning the positions of multiple display areas 211 and multiple sensor units 111 vertically, can intuitively obtain the location of the maximum arterial pressure data on the display screen 21, thereby enabling rapid and accurate positioning of the artery and improving the success rate of puncture. By setting a guide part that matches the measurement results, the puncture position and angle of the puncture needle can be directly guided, further reducing the difficulty of puncture. In a preferred embodiment, the pressure sensor array 11 uses a piezoelectric thin-film sensor. Piezoelectric thin-film sensors are thin, flexible, small in size, and have precise measurement points. They can detect minute pressure signals, accurately obtain the location of different pressure values, and can also make flexible contact with the skin, improving the accuracy and comfort of arterial positioning.
[0036] In a preferred embodiment, the display screen 21 displays the measurement results of all sensor units 111. For example... Figure 2 As shown, for example, the display screen 21 displays the measurement results of the pressure sensor array 11 through a bar graph. The higher the pressure value fed back by the sensor unit 111, the taller the corresponding bar displayed in the display area 211. Optionally, the display screen 21 can also display the measurement results of the pressure sensor array 11 through a line graph or color. By visualizing the measurement results of the pressure sensor array 11 in a graphical manner, doctors can intuitively, quickly, and accurately determine the location of the artery without having to compare the values, reducing errors in the judgment process, improving identification accuracy, and enhancing the user experience.
[0037] In a preferred embodiment, the display screen 21 displays the measurement result only in the display area 211 corresponding to the sensor unit 111 with the highest pressure value. For example, the main controller identifies the sensor unit 111 with the highest pressure value from all the measurement values fed back by the sensor units 111 and displays a mark in the display area 211 corresponding to that sensor unit 111. Optionally, the mark can be an arrow or a color.
[0038] It should be noted that the display interface of the display screen 21 proposed in this embodiment is existing technology and is not within the scope of the technical improvement of this utility model.
[0039] Furthermore, such as Figure 1As shown, the display screen 21 is tilted to the plane of the pressure sensor array 11. One long side of the display screen 21 is close to the pressure sensor array 11, while the other long side is away from the pressure sensor array 11. For example, the tilt angle of the display screen 21 is 30°-45°. Tilting the display screen 21 to the plane of the pressure sensor array 11 allows the puncture site displayed on the display screen 21 to be closer to the skin, thereby more accurately determining the location of the arterial puncture on the skin. It also prevents interference between the electronic components and circuits between the display screen 21 and the pressure sensor array 11. The tilted arrangement of the display screen 21 also allows the doctor to more clearly and accurately observe the measurement results from the patient's side. Optionally, the display screen 21 can also be parallel or perpendicular to the plane of the pressure sensor array 11.
[0040] In a preferred embodiment, such as Figure 4 As shown, the guide unit 3 also includes a slide bar 32, both ends of which are fixed to the device and parallel to the array direction of the pressure sensor array 11. One end of the guide plate 31 is slidably connected to the slide bar 32, allowing the guide plate 31 to slide along the direction of the slide bar 32, thereby adjusting the position of the guide groove 311 so that it is aligned with the position of the display area 211 where the pulse fluctuation is strongest.
[0041] In a preferred embodiment, a support portion 3111 is provided within the guide groove 311. The surface of the support portion 3111 is inclined to the bottom plane of the detection unit 1, thereby guiding the angle at which the puncture needle is inclined to the skin during puncture. Optionally, the support portion 3111 may also be provided with multiple inclined planes, which can guide the puncture needle to perform puncture at different angles inclined to the skin surface. For example, the support portion 3111 has four support surfaces with angles of 30°, 35°, 40°, and 45°.
[0042] Considering the different operating habits of doctors and the different arterial conditions of patients, the slide bar 32 can be set to a cylindrical shape, allowing the guide plate 31 to rotate around the slide bar 32. When the guide plate 31 is not needed, it can be rotated upwards and locked onto the device.
[0043] The arterial puncture auxiliary positioning device in this embodiment also includes a handheld unit 4 to facilitate handheld operation of the auxiliary positioning device. For example... Figure 1 As shown, the handheld unit 4 is located at the top of the device and includes a gripping section 41 and a limiting section 42.
[0044] The grip section 41 is located at the lower section of the handheld unit 4 and has a rod-shaped housing tilted towards the pressure sensor array 11 to make the hand grip angle more comfortable, without obstructing the display screen 21.
[0045] The limiting section 42 is located at the upper part of the handheld unit 4, and the limiting part 421 is provided below the limiting section 42 to limit the position between the positioning device and the hand.
[0046] In a preferred embodiment, such as Figure 1 As shown, the lower surface of the limiting part 421 is curved and can fit against the web of the hand, so that the positioning device can be placed on the web of the hand, making the position of the detection unit 1 on the skin more stable, and achieving the purpose of quickly and accurately obtaining the artery position.
[0047] The arterial puncture auxiliary positioning device of this embodiment also includes a power supply and a switch 5. The power supply is located inside the grip section 41, and the switch 5 is located on the surface of the grip section 41, making operation convenient and quick.
[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. An arterial puncture assisted positioning device, characterized in that, The device comprises a detecting unit (1), a display unit (2) and a guiding unit (3). The detecting unit (1) comprises a pressure sensor array (11). The pressure sensor array (11) comprises a plurality of sensors (111) arranged in a straight line. The display unit (2) comprises a display screen (21) located above the pressure sensor array (11). The display screen (21) comprises a plurality of display areas (211) arranged in a straight line. Each display area (211) is used to display the measurement result of the corresponding sensor (111). The guiding unit (3) comprises a guiding plate (31) provided with a guiding groove (311) for guiding the puncture position and the angle of the puncture needle. The guiding plate (31) can slide along the display areas (211) to align the guiding groove (311) with the position of the strongest pulse fluctuation displayed on the display screen (21).
2. The arterial puncture assisted positioning device of claim 1, wherein, The guiding unit (3) further comprises a slide rod (32) parallel to the array direction of the pressure sensor array (11).
3. The arterial puncture assisted positioning device of claim 2, wherein, One end of the guiding plate (31) is connected to the slide rod (32) to adjust the position of the guiding groove (311).
4. The arterial puncture assisted positioning device of claim 3, wherein, The slide rod (32) is cylindrical, and the guiding plate (31) can rotate around the slide rod (32).
5. The arterial puncture assisted positioning device of claim 4, wherein, The guiding groove (311) is provided with a support portion (3111) inclined to the bottom plane of the detecting unit (1) to guide the angle of the puncture needle when puncturing the skin.
6. The arterial puncture assisted positioning device of claim 1, wherein, The display screen (21) is inclined to the detection surface of the pressure sensor array (11) and the bottom edge is in abutment with one side of the pressure sensor array (11).
7. The arterial puncture assisted positioning device of claim 1, wherein, The measurement length of the pressure sensor array (11) is 10 mm, and the number of sensors (111) is 10.
8. The arterial puncture assisted positioning device of claim 1, wherein, The device further comprises a handheld unit (4), and the lower segment of the handheld unit (4) is a holding segment (41) inclined to the detection surface of the bottom of the detecting unit (1).
9. The arterial puncture assisted positioning device of claim 8, wherein, The lower segment of the handheld unit (4) is a limiting segment (42) provided with a limiting portion (421) below, and the lower surface of the limiting portion (421) is curved and can be fitted to the web space of the hand.
10. The arterial puncture assisted positioning device according to any one of claims 1 to 9, characterized in that The pressure sensor array (11) adopts a piezoelectric film sensor.