Probe fixing device and ultrasonic measuring instrument
By designing a receiving groove and interference fit for the probe fixing device, the gap problem between the probe detection surface and the skin was solved, improving signal quality and monitoring accuracy, and enhancing the stability and fixing reliability of the probe.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EDAN INSTR
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-15
AI Technical Summary
The inverted structure of the existing probe fixing device causes a gap between the probe detection surface and the skin, affecting signal quality and the accuracy of monitoring results.
Design a probe fixing device, including a receiving groove for the fixing base, so that the contact surface of the probe is exposed outside the fixing base to ensure direct contact with the skin, and fix the probe by interference fit, snap-fit or adhesive, so as to avoid signal attenuation and interference.
It improves the accuracy of probe monitoring results, prevents signal attenuation and interference, and enhances the stability and fixation reliability of the probe.
Smart Images
Figure CN224235434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a probe fixing device and an ultrasonic measuring instrument. Background Technology
[0002] In clinical practice, cardiac output is one of the most direct indicators of cardiac function. Based on the Doppler principle, the carotid artery blood flow monitoring probe (hereinafter referred to as the probe) can non-invasively monitor the hemodynamic status of the carotid artery, providing more effective guidance for clinical decision-making.
[0003] In actual use, the probe usually needs to be placed on the patient's neck for a long time to continuously monitor blood flow. Therefore, a special device is needed to fix the probe to the patient's neck.
[0004] In related technologies, the fixing device is designed with an inverted buckle. Due to the thickness of the inverted buckle structure, the detection contact surface of the probe cannot be directly attached to the human skin. There is a gap between the detection contact surface and the skin, which causes the signal to be attenuated when passing through this gap, or to be interfered with by other signals in the environment. It may also cause the signal reflected back from the human body to not be fully received by the detection surface, ultimately affecting the signal quality and the accuracy of the carotid artery blood flow monitoring results. Utility Model Content
[0005] The main purpose of this invention is to provide a probe fixing device and an ultrasonic measuring instrument, which aims to improve the accuracy of probe monitoring results.
[0006] To achieve the above objectives, this utility model proposes a probe fixing device, wherein the probe has a contact surface suitable for contacting the target detection part, and the probe fixing device includes a fixing base;
[0007] The mounting base is provided with a receiving groove for accommodating the probe. The depth of the receiving groove is adapted to be less than or equal to the distance between the contact surface of the probe and the bottom of the receiving groove, so that the contact surface of the probe is exposed outside the mounting base so as to fit against the target detection area during detection.
[0008] Optionally, the groove wall of the receiving groove is provided with a wire-clamping notch for the probe cable to pass through.
[0009] Optionally, the inner peripheral wall of the receiving groove is adapted to have an interference fit with the outer peripheral wall of the probe; or
[0010] The receiving groove is adapted to be snapped or glued to the probe for fixation.
[0011] Optionally, the mounting base is provided with a pinching recess that is recessed toward the probe, the pinching recess being for the operator to pinch, and the shape of the pinching recess being adapted to match the shape of the pinching part of the probe.
[0012] Optionally, the probe fixing device further includes a connector and an adhesive component, and the outer periphery of the fixing base is provided with an extension arm, which is connected to the adhesive component through the connector.
[0013] Optionally, the extension arm is provided with several grooves for relieving bending stress, and the thickness of the extension arm at the grooves is less than the thickness of other areas of the extension arm.
[0014] Optionally, the groove is adapted to extend along the cable exit direction of the probe, and the length of the groove is less than or equal to the length of the extension arm.
[0015] Optionally, the probe fixing device further includes a protective member disposed on the side of the adhesive member opposite to the connector. The protective member includes at least a first protective component and a second protective component. The first protective component and the second protective component are independently disposed and form a separator line or gap. The separator line or gap is adapted to extend along the cable exit direction of the probe.
[0016] Optionally, the extension arm, the connector, the adhesive, and the protective member are all provided with wire passages communicating with the wire-clamping notch at positions corresponding to the wire-clamping notch of the fixing seat.
[0017] Optionally, the outer edge of the adhesive has a recessed portion that is recessed toward the probe, the recessed portion being used to adapt to the shape of the target bonding area.
[0018] To achieve the above objectives, this utility model also proposes an ultrasonic measuring instrument, comprising:
[0019] Ultrasound main unit;
[0020] The probe is electrically connected to the ultrasound host; and
[0021] As described above, in the probe fixing device, the probe is detachably mounted within the probe fixing device.
[0022] In the technical solution of this utility model, the probe fixing device includes a fixing base; the fixing base is provided with a receiving groove for accommodating the probe, the depth of the receiving groove being suitable to be less than or equal to the distance between the contact surface of the probe and the bottom of the receiving groove, so that the contact surface of the probe is exposed outside the fixing base, so as to fit against the target detection area during detection. This effectively solves the problem of gaps or obstructions between the contact surface of the existing probe and the skin, avoiding gaps affecting the transmission and reception of probe signals, preventing signal attenuation or interference, and thus improving the accuracy of probe monitoring results. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of the probe fixing device after assembly with the probe in one embodiment of the present invention;
[0025] Figure 2 This is a schematic diagram of the assembly of the probe with the probe in one embodiment of the probe fixing device of this utility model;
[0026] Figure 3 This is a schematic diagram of the structure of the probe adapted in one embodiment of the probe fixing device of this utility model;
[0027] Figure 4 for Figure 3 A diagram from another angle;
[0028] Figure 5 This is a schematic diagram of the structure of an embodiment of the probe fixing device of this utility model;
[0029] Figure 6 This is an exploded view of an embodiment of the probe fixing device of this utility model;
[0030] Figure 7 This is a schematic diagram of the structure of the fixing base in one embodiment of the probe fixing device of this utility model;
[0031] Figure 8 for Figure 7 A diagram from another angle;
[0032] Figure 9 This is a schematic diagram of the connecting member in one embodiment of the probe fixing device of this utility model;
[0033] Figure 10This is a schematic diagram of the adhesive component in one embodiment of the probe fixing device of this utility model;
[0034] Figure 11 This is a schematic diagram of the protective component in one embodiment of the probe fixing device of this utility model;
[0035] Figure 12 This is a schematic diagram of the production and assembly of an embodiment of the probe fixing device of this utility model.
[0036] Explanation of icon numbers:
[0037] 100. Probe fixing device; 200. Probe; 10. Fixing base; 20. Connector; 30. Adhesive; 40. Protective component; 10a. Receiving groove; 10b. Cable notch; 11. Pinch recess; 12. Extension arm; 12a. Groove; 41. First protective component; 42. Second protective component; 43. Separator line or gap; 31. Inner recess; 210. Housing; 220. Cable; 211. Pinch part; 201. Contact surface.
[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0043] In some exemplary technologies, the probe fixation device typically consists of two parts: a fixing part and an adhesive part. The fixing part is assembled with the probe to secure it; the adhesive part, used to attach the device to the skin of the neck, is usually made of a flexible material with a certain degree of adhesiveness. These two parts are assembled into a single unit through surface pressing. Before attaching the probe to the skin using the fixation device, medical personnel need to attach the probe to the fixation device, grasp the outside of the fixation device, locate a site with a strong signal on the patient's neck, peel off the protective layer of the adhesive part, and then stick the fixation device to the specific location.
[0044] To prevent the probe from falling off, the fixing device has an inverted buckle on the side that fits against the skin. The inner side of the buckle contacts the detection surface of the probe, while the outer side fits against the skin. Because the buckle structure has a certain thickness, the detection surface of the probe cannot be completely attached to the skin. There is a gap between the detection surface and the skin, which causes the signal to be attenuated when passing through this gap, or to be interfered with by other signals in the environment. It may also cause the signal reflected back from the human body to not be fully received by the detection surface, ultimately affecting the signal quality and the accuracy of the carotid artery blood flow monitoring results.
[0045] In response to this problem, the present invention proposes a probe fixing device to solve the aforementioned issues.
[0046] Reference Figures 1 to 6In one embodiment of the present invention, the probe 200 has a contact surface 201 suitable for contacting the target detection site; the probe fixing device 100 includes a fixing base 10; the fixing base 10 is provided with a receiving groove 10a for accommodating the probe 200, the groove depth of the receiving groove 10a is suitable to be less than or equal to the distance between the contact surface 201 of the probe 200 and the bottom of the receiving groove 10a, so that the contact surface 201 of the probe 200 is exposed outside the fixing base 10, so as to fit with the target detection site such as human skin during detection, wherein the target detection site may be the patient's neck, wrist or other positions.
[0047] In this embodiment, the fixing base 10 can be made of soft plastic material, preferably silicone material. Silicone has a certain elasticity, which can facilitate the fixing of the probe 200. The fixing base 10 can be a single component or assembled from two or more components; no limitation is made here.
[0048] In this embodiment, the inner peripheral wall of the receiving groove 10a is in contact with the outer peripheral wall of the probe 200. The inner peripheral wall of the receiving groove 10a can be configured to have an interference fit with the outer peripheral wall of the probe 200, so that the probe fixing device 100 fixes the probe 200 by surface friction (when the operator grips the outer peripheral wall of the fixing base 10, the applied gripping force will also act on the inner peripheral wall of the receiving groove 10a and the outer peripheral wall of the probe 200, increasing the friction, so it is more difficult for the probe 200 to fall off during use), which can prevent the probe 200 from falling off, making the installation reliable and the disassembly and assembly convenient. Of course, the receiving groove 10a can also be configured to fix the probe 200 by snap-fit or adhesive, etc., which is not limited here.
[0049] It is understood that by setting a receiving groove 10a on the fixed base 10, the depth of which is sufficient to expose the detection surface, allowing it to directly contact the skin during detection, this utility model effectively solves the problem of gaps or obstructions between the detection contact surface 201 of the existing probe 200 and the skin. This avoids gaps affecting the transmission and reception of the probe 200 signal, prevents signal attenuation or interference, and thus improves the accuracy of the probe 200 monitoring results.
[0050] To facilitate fixing the end of the cable 220 of the probe 200 and prevent the probe 200 from shaking in the receiving groove 10a due to movement of the cable 220 end, thereby improving the stability of the probe fixing device 100 in fixing the probe 200, in one embodiment, such as Figures 1 to 6 As shown, the groove wall of the receiving groove 10a may be provided with a wire-clamping notch 10b for the cable 220 of the probe 200 to pass through. The wire-clamping notch 10b can restrict the movement of the end of the cable 220. In addition, this arrangement can facilitate cable routing and prevent the movement of the cable 220 from interfering with operation.
[0051] In this embodiment, the wire-clamping notch 10b can be designed to fit the shape of the end of the cable 220 of the probe 200, such as a semi-circular notch, an arched notch, or a square notch, which can be determined according to the specific application scenario and is not limited here.
[0052] In existing technologies, the gripping portion of the fixing device is set at an obtuse angle, resulting in a small gripping area and inconvenient operation. To address this, the present invention makes relevant improvements to the probe fixing device 100:
[0053] In one embodiment, primarily referring to Figure 3 and Figure 7 The mounting base 10 may be provided with a pinching recess 11 that is recessed toward the probe 200. The pinching recess 11 is for the operator to pinch, and the shape of the pinching recess 11 is adapted to match the shape of the pinching part 211 of the probe 200.
[0054] In this embodiment, the pinching recess 11 can be located in the middle area on both sides of the fixing base 10. It can be designed as an inwardly recessed structure, and the shape of the recess can match the shape of the finger, which helps the operator to easily grasp the probe fixing device 100. That is to say, the outer surface of the fixing base 10 provides sufficient gripping area and is designed with a specific arc shape based on the finger structure, which facilitates user operation.
[0055] In one embodiment, such as Figures 1 to 11 As shown, the probe fixing device 100 may further include a connector 20 and an adhesive component 30. An extension arm 12 is provided on the outer periphery of the fixing base 10, and the extension arm 12 is connected to the adhesive component 30 via the connector 20. The connector 20 enhances the overall structural strength. The adhesive component 30 facilitates the attachment of the fixing base 10 to the skin. The adhesive component 30 can be made of a soft material, preferably non-woven fabric, which offers good breathability and improves patient comfort, especially during prolonged monitoring. It should be noted that the side of the adhesive component 30 closest to the skin is adhesive, allowing it to reliably adhere to the skin for a certain period; the side furthest from the skin is non-adhesive and connected to the connector 20.
[0056] In this embodiment, the main reference is... Figure 7 The extension arm 12 may be provided with several grooves 12a for relieving bending stress, and the thickness of the extension arm 12 at the grooves 12a is less than the thickness of other areas of the extension arm 12. In this embodiment, by providing the grooves 12a, bending stress can be relieved, improving the reliability of continuous adhesion; in addition, it can save material usage, making the product lighter.
[0057] Furthermore, in conjunction with reference Figure 1 and Figure 7The groove 12a is adapted to extend along the cable 220 exit direction of the probe 200, and the length of the groove 12a is less than or equal to the length of the extension arm 12. In this way, the stress relief effect can be further improved.
[0058] Specifically, the connector 20 of the fixing part has a groove 12a designed at the connection with the extension arm 12 of the fixing base 10 along the direction of the probe 200. When the probe fixing device 100 is attached to the neck of the human body, the adhesive part 30 of the probe fixing device 100 will bend based on the curved structure of the neck. The connector 20 connected to the adhesive part 30 will deform as the adhesive part 30 deforms. Since the groove 12a is thinner than other parts of the connecting layer and runs through the entire connector 20, the connector 20 is more likely to bend and deform without causing other structures to deform together. This releases the stress caused by bending deformation to a certain extent and improves the reliability of continuous adhesion.
[0059] In one embodiment, such as Figures 1 to 11 As shown, the probe fixing device 100 may also include a protective member 40 disposed on the side of the adhesive member 30 facing away from the connector 20. The protective member 40 is used to protect the adhesive member 30 before the device is used and is attached to the adhesive side of the adhesive member 30, but will not affect the adhesiveness of the adhesive member 30.
[0060] In this embodiment, the main reference is... Figure 11 The protective component 40 includes a first protective component 41 and a second protective component 42. The first protective component 41 and the second protective component 42 are independently arranged and form a separating line or gap 43. The separating line or gap 43 is adapted to extend along the cable 220 outlet direction of the probe 200. In this way, by setting the protective component 40, the adhesive component 30 can be effectively protected. By designing the protective component 40 into two independent parts with the outlet position of the probe 200 as the dividing line, it is easy to tear off the protective component 40 to fix the probe 200 after determining the fixed position of the probe 200, without having to deliberately bypass the cable 220. This greatly improves the convenience of operation and avoids the operator touching the cable 220 and causing the probe 200 to loosen during the process of tearing off the protective component 40. That is, there will be no interference with the cable 220 during operation, which conforms to the operation logic and improves the ease of use of the product.
[0061] In addition, in some other embodiments, the protective element 40 may be divided into more components to avoid interference with the cable 220, which is not limited here.
[0062] To further improve the overall wiring convenience of the probe fixing device 100, avoid interference with operation by the cable 220, and prevent the probe 200 in the receiving groove 10a from shaking due to movement of the cable 220 end, thereby improving the stability of the probe fixing device 100 in fixing the probe 200, such as... Figures 1 to 11As shown in this embodiment, the extension arm 12, connector 20, adhesive piece 30, and protective piece 40 can all have wire passages communicating with the wire-clamping notch 10b of the fixing seat 10. The wire passages on each component can be set to the same size and shape, or they can be set to different sizes and shapes (the wire passages shown in the figure adopt different structures), which is not limited in this article.
[0063] In one embodiment, primarily referring to Figure 1 and Figure 10 The outer edge of the adhesive 30 may be provided with a recessed portion 31 that is recessed toward the probe 200. The recessed portion 31 is used to adapt to the shape of the target bonding part so that the probe fixing device 100 can still fit well with the bonding part of the neck and other parts when it is bent, so that the detection results are more accurate.
[0064] Reference Figure 12 The following steps can be followed during production:
[0065] Step 1: Cut the connector 20, adhesive part 30 and protective part 40 into their respective shapes, and then combine them into a whole to process a semi-finished product;
[0066] Step 2: Inject the fixing component into shape, and then combine it with the semi-finished product mentioned above to form the probe fixing device 100 finished product.
[0067] The connector 20 and the adhesive part 30 can be combined by processes such as bonding, ultrasonic welding, and mechanical fitting; the connector 20 and the fastener can be combined by processes including bonding, ultrasonic welding, surface pressing, and mechanical fitting, which are not limited in this article.
[0068] This utility model also proposes an ultrasonic measuring instrument, which can be an ultrasonic blood flow monitoring device, a transcranial Doppler ultrasound device, etc., capable of monitoring the patient's blood flow status information, including blood flow velocity, volume changes, and other information. The ultrasonic measuring instrument includes a probe fixing device 100, the specific structure of which is described in the above embodiments. Since the ultrasonic measuring instrument proposed in this utility model includes all solutions of all embodiments of the probe fixing device 100 described above, it at least has the same technical effects as the probe fixing device 100 described above, and will not be elaborated here.
[0069] Reference Figures 1 to 5In one embodiment of this utility model, the ultrasound measuring instrument further includes an ultrasound host and a probe 200. The probe 200 is electrically connected to the ultrasound host and is detachably mounted in a probe fixing device 100. In use, the probe 200 is fixed to the target detection site of the patient through the probe fixing device 100 to continuously detect the patient's blood flow status. It can be understood that the probe 200 and its fixing support of this utility model are detachable, making operation more convenient and facilitating modular manufacturing of various devices or components, which is beneficial for large-scale mass production and reduces costs.
[0070] In this embodiment, the main reference is... Figure 3 The probe 200 includes a housing 210, a sensor disposed within the housing 210, and a cable 220 connected to the sensor and to the ultrasound host. The sensor is used to transmit and receive signals; it is assembled with the fixing part; the cable 220 is used to transmit the signals that the sensor needs to transmit and receive.
[0071] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A probe fixing device, wherein the probe has a contact surface suitable for contacting a target detection area, characterized in that, The probe fixing device includes a fixing base; The mounting base is provided with a receiving groove for accommodating the probe. The depth of the receiving groove is adapted to be less than or equal to the distance between the contact surface of the probe and the bottom of the receiving groove, so that the contact surface of the probe is exposed outside the mounting base, so as to fit against the target detection part during detection.
2. The probe fixing device as described in claim 1, characterized in that, The wall of the receiving groove is provided with a wire-clamping notch for the probe cable to pass through.
3. The probe fixing device as described in claim 1, characterized in that, The inner peripheral wall of the receiving groove is adapted to have an interference fit with the outer peripheral wall of the probe; or The receiving groove is adapted to be snapped or glued to the probe for fixation.
4. The probe fixing device as described in claim 1, characterized in that, The mounting base is provided with a pinching recess that is recessed towards the probe. The pinching recess is for the operator to pinch, and the shape of the pinching recess is adapted to match the shape of the pinching part of the probe.
5. The probe fixing device as described in claim 2, characterized in that, The probe fixing device also includes a connector and an adhesive component. An extension arm is provided on the outer periphery of the fixing base, and the extension arm is connected to the adhesive component through the connector.
6. The probe fixing device as described in claim 5, characterized in that, The extension arm is provided with several grooves for relieving bending stress, and the thickness of the extension arm at the grooves is less than the thickness of other areas of the extension arm.
7. The probe fixing device as described in claim 6, characterized in that, The groove is adapted to extend along the cable exit direction of the probe, and the length of the groove is less than or equal to the length of the extension arm.
8. The probe fixing device as described in claim 5, characterized in that, The probe fixing device further includes a protective component disposed on the side of the adhesive component facing away from the connector. The protective component includes at least a first protective component and a second protective component. The first protective component and the second protective component are independently disposed and form a separator line or gap. The separator line or gap is adapted to extend along the cable exit direction of the probe.
9. The probe fixing device as described in claim 8, characterized in that, The extension arm, the connector, the adhesive, and the protective component are all provided with wire passages that communicate with the wire-clamping notch at the position corresponding to the wire-clamping notch of the fixing seat.
10. The probe fixing device as described in claim 5, characterized in that, The outer edge of the adhesive piece is provided with a recessed portion that is recessed toward the probe, and the recessed portion is used to adapt to the shape of the target bonding area.
11. An ultrasonic measuring instrument, characterized in that, include: Ultrasound main unit; The probe is electrically connected to the ultrasound host; and The probe fixing device according to any one of claims 1 to 10, wherein the probe is detachably disposed within the probe fixing device.