Deep venipuncture catheterization auxiliary device and deep venipuncture catheterization system

Abstract

The utility model provides a deep venipuncture catheterization auxiliary device and a deep venipuncture catheterization system. The deep venipuncture catheterization auxiliary device comprises a base, a clamping device and a locking mechanism. The clamping device is rotationally connected with the base and used for clamping or releasing the ultrasonic probe. The locking mechanism is arranged between the base and the clamping device and used for limiting relative rotation between the clamping device and the base during locking. When deep vein puncture catheterization is carried out, a medical worker finds a puncture point through the ultrasonic probe. And then, after the ultrasonic probe is fixed on the clamping device, the base is supported on the human body, and the ultrasonic probe is aligned with the puncture point. At the moment, a medical worker can hold the base with one hand or fix the base on the human body through a sterile medical film and the like, and puncture operation can be conducted with the other hand or two hands. The base increases the contact area with the human body, so that the ultrasonic probe is more stable, and displacement is effectively prevented. And when the base is fixed by using the sterile medical adhesive film, both hands can be liberated, and the puncture effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a deep vein puncture and catheterization auxiliary device and a deep vein puncture and catheterization system. Background Technology

[0002] Currently, deep vein puncture and catheterization mainly rely on anatomical localization and bedside ultrasound-assisted direct visualization. Ultrasound-assisted puncture and catheterization has a high success rate, which can reduce the probability of puncture failure and reduce complications. During puncture, one hand needs to hold the bedside ultrasound probe and the other hand needs to hold the puncture needle. The probe position is easy to move, which affects the puncture effect. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a deep vein puncture and catheterization auxiliary device and a deep vein puncture and catheterization system, aiming to solve the problem in related technologies where the probe position easily moves during handheld bedside ultrasound probe puncture and catheterization, thus affecting the puncture effect.

[0004] This utility model provides a deep vein puncture and catheterization auxiliary device, comprising:

[0005] Base;

[0006] A clamping device is rotatably connected to the base and is used to clamp or release the ultrasound probe. A gap is provided between the clamping device and the base for the puncture needle to pass through.

[0007] A locking mechanism is provided between the base and the clamping device, the locking mechanism being used to restrict relative rotation between the clamping device and the base when locked.

[0008] The deep vein puncture and catheterization auxiliary device provided by this utility model also includes a puncture needle guide device. The puncture needle guide device is disposed on the side of the clamping device near the base. The guide path of the puncture needle guide device passes through the gap between the clamping device and the base through which the puncture needle passes.

[0009] According to the deep vein puncture and catheterization auxiliary device provided by this utility model, the base includes a first support plate and a flexible protective layer disposed at the bottom of the first support plate.

[0010] According to the deep vein puncture and catheter placement auxiliary device provided by this utility model, the clamping device includes:

[0011] The second support plate has its bottom end rotatably connected to the front end of the first support plate.

[0012] A clamping assembly is disposed on the side of the second support plate away from the first support plate, and the clamping assembly is used to clamp or release the ultrasonic probe.

[0013] According to the deep vein puncture and catheter placement auxiliary device provided by this utility model, the clamping assembly includes a pair of elastic clips, the two elastic clips are respectively disposed on both sides of the second support plate along the width direction, and the elastic clips are used to clamp and wrap around both sides of the ultrasound probe.

[0014] According to the deep vein puncture and catheter placement auxiliary device provided by this utility model, the clamping assembly includes a pair of linear movement mechanisms, the moving end of the linear movement mechanism being used to move toward or away from the other linear movement mechanism.

[0015] According to the deep vein puncture and catheter placement auxiliary device provided by this utility model, the linear movement mechanism includes a lead screw and nut mechanism.

[0016] According to the deep vein puncture and catheterization auxiliary device provided by this utility model, the locking mechanism includes a guide plate and a guide screw. One of the guide plate and the guide screw is disposed on one side of the first support plate, and the other is disposed on one side of the second support plate. The guide plate and the guide screw are disposed on the same side of the first support plate and the second support plate, wherein:

[0017] The guide plate is provided with an arc-shaped guide groove that runs through the guide plate. The center of the arc-shaped guide groove is located on the rotation axis of the first support plate and the second support plate. The guide screw passes through the arc-shaped guide groove, and a locking nut is provided at the extended end of the guide screw.

[0018] According to the deep vein puncture and catheterization auxiliary device provided by this utility model, the puncture needle guiding device includes at least one guide ring or guide cylinder, and the axis of the guide ring or the guide cylinder is perpendicular to the rotation axis of the clamping device.

[0019] This utility model also provides a deep vein puncture and catheterization system, including an ultrasound detection device, a puncture and catheterization assembly, and a deep vein puncture and catheterization auxiliary device as described above.

[0020] This utility model has the following advantages due to the adoption of the above technical solution:

[0021] This utility model provides a deep vein puncture and catheterization auxiliary device, including a base, a clamping device, and a locking mechanism. The clamping device is rotatably connected to the base and is used to clamp or release the ultrasound probe. A gap is provided between the clamping device and the base for the puncture needle to pass through. The locking mechanism is located between the base and the clamping device. When the locking mechanism is unlocked, the clamping device can rotate relative to the base. When the locking mechanism is locked, it restricts the relative rotation between the clamping device and the base. During deep vein puncture and catheterization, medical personnel hold the ultrasound probe to locate the target vein and mark the puncture point on the body. Then, after fixing the ultrasound probe to the clamping device, the medical personnel support the base on the body and align the ultrasound probe with the puncture point. At this time, the medical personnel can hold the base with one hand and perform the puncture operation with the other hand, or the base can be fixed to the body with a sterile medical dressing or other fixing device, and the puncture operation can be performed with both hands. When medical staff hold the base during operation, the increased contact area with the body makes the ultrasound probe more stable, effectively preventing displacement and thus improving the puncture effect. Using sterile medical films or other fixative bases can prevent ultrasound probe displacement while freeing up the hands, further enhancing the puncture effect.

[0022] Furthermore, the deep vein puncture and catheterization system provided by this utility model has the same advantages as described above because it is equipped with the deep vein puncture and catheterization auxiliary device as described above. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a deep vein puncture and catheterization auxiliary device provided in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a clamping device provided in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of another clamping device provided in one embodiment of the present invention;

[0027] Figure 4 This is a top view of the second support plate provided in one embodiment of the present invention;

[0028] Figure 5 This is a top view of the first support plate provided in one embodiment of the present invention.

[0029] Figure label:

[0030] 110: First support plate; 120: Flexible protective layer; 210: Second support plate; 211: Fixing block; 220: Elastic clamping piece; 221: Clamping section; 222: Guide section; 230: Lead screw; 310: Guide plate; 311: Arc-shaped guide groove; 320: Guide screw; 330: Locking nut; 400: Guide ring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] This utility model provides a deep vein puncture and catheterization auxiliary device, including a base, a clamping device, and a locking mechanism. The clamping device is rotatably connected to the base and is used to clamp or release the ultrasound probe. A gap is provided between the clamping device and the base for the puncture needle to pass through. The locking mechanism is located between the base and the clamping device. When the locking mechanism is unlocked, the clamping device can rotate relative to the base. When the locking mechanism is locked, it restricts the relative rotation between the clamping device and the base. During deep vein puncture and catheterization, medical personnel hold the ultrasound probe to locate the target vein and mark the puncture point on the body. Then, after fixing the ultrasound probe to the clamping device, the medical personnel support the base on the body and align the ultrasound probe with the puncture point. At this time, the medical personnel can hold the base with one hand and perform the puncture operation with the other hand, or the base can be fixed to the body with a sterile medical dressing or other fixing device, and the puncture operation can be performed with both hands. When medical staff hold the base during operation, the increased contact area with the body makes the ultrasound probe more stable, effectively preventing displacement and thus improving the puncture effect. Using a sterile medical film to fix the base prevents ultrasound probe displacement and frees up the hands, further enhancing the puncture effect.

[0038] The following is combined with Figures 1 to 5 This invention describes a deep vein puncture and catheterization auxiliary device.

[0039] This utility model provides a deep vein puncture and catheter placement auxiliary device, including a base, a clamping device, and a locking mechanism. The clamping device is rotatably connected to the base and is used to clamp or release an ultrasound probe. A gap is provided between the clamping device and the base for the puncture needle to pass through. The locking mechanism is disposed between the base and the clamping device. When the locking mechanism is unlocked, the clamping device can rotate relative to the base. When the locking mechanism is locked, it restricts the relative rotation between the clamping device and the base.

[0040] In use, medical staff hold the ultrasound probe and locate the target vein at the site where the patient needs to have a catheter inserted to determine the puncture point, and mark the location at the puncture point. Then, the medical staff fixes the ultrasound probe to the clamping device and unlocks the locking mechanism to adjust the angle between the clamping device and the base, thereby changing the angle between the ultrasound probe and the human body when the base is supported by the human body. Once the angle is adjusted to the correct position, the locking mechanism is locked to restrict the relative rotation between the base and the clamping device.

[0041] Then, medical staff place the deep vein puncture and catheterization auxiliary device with an ultrasound probe fixed to it at the target location on the body so that the probe tip of the ultrasound probe contacts the puncture point.

[0042] At this time, medical staff have two ways of operating: the first is to press the base on the patient with one hand to fix the position of the ultrasound probe, and use the other hand to operate the puncture needle to complete the puncture and catheterization operation; the second is for medical staff to use sterile medical film to fix the base on the patient to free their hands, and use both hands to complete the puncture and catheterization operation while ensuring that the position of the ultrasound probe is fixed.

[0043] Both of the above-mentioned fixation methods, whether the first or the second, can effectively prevent the ultrasound probe from shifting during the puncture process. For example, with the first fixation method, the base increases the contact area with the body. Compared to directly holding the ultrasound probe, this auxiliary device significantly improves the stability of the ultrasound probe and prevents it from shifting during the puncture. The second fixation method, in addition to achieving the effects of the first method, also frees up the hands, further improving the puncture effect.

[0044] In some embodiments, the base includes a first support plate 110 and a flexible protective layer 120. The flexible protective layer 120 is disposed at the bottom of the first support plate 110. For example, the flexible protective layer 120 can be made of medical-grade silicone. During use, the flexible protective layer 120 comes into contact with the human body. Using a flexible material for the protective layer not only protects the skin but also allows the layer to deform when in contact with the body, making it fit more closely and thus improving the stability of the support.

[0045] In some embodiments, the clamping device includes a second support plate 210 and a clamping assembly. The bottom end of the second support plate 210 is rotatably connected to the front end of the first support plate 110, and the axis of rotation can be in the left-right direction. The clamping assembly is disposed on the side of the second support plate 210 away from the first support plate 110, and the clamping assembly is used to clamp or release the ultrasound probe.

[0046] In some embodiments, the clamping assembly may include a pair of elastic clips 220, which are respectively disposed on both sides of the second support plate 210 along the width direction, and are used to clamp and wrap around the sides of the ultrasonic probe.

[0047] Specifically, the clamping assembly includes a pair of elastic clips 220, which are respectively disposed on the side of the second support plate 210 away from the first support plate 110 and located at the middle position of the left and right sides of the second support plate 210.

[0048] The elastic clip 220 includes a clamping section 221 and a guiding section 222. The clamping section 221 extends from the second support plate 210 away from the first support plate 110 and towards the other elastic clip 220, and the distance between the ends of the clamping sections 221 of the two elastic clips 220 away from the second support plate 210 is less than the width of the ultrasound probe. The guiding section 222 extends from the end of the clamping section 221 away from the second support plate 210 and away from the other elastic clip 220, and the distance between the ends of the two guiding sections 222 away from the clamping section 221 is greater than the width of the ultrasound probe.

[0049] When the ultrasonic probe needs to be fixed on the second support plate 210, the ultrasonic probe first needs to enter the area between the guide sections 222 of the two elastic clips 220. When the ultrasonic probe is pressed towards the second support plate 210, the ultrasonic probe opens the elastic clips 220, allowing the ultrasonic probe to pass through the narrow opening of the clamping section 221 and then enter between the clamping sections 221 of the two elastic clips 220. When the ultrasonic probe passes through the narrow opening, the two elastic clips 220 move towards each other under the action of elastic force to clamp the ultrasonic probe.

[0050] In some embodiments, the clamping assembly may further include a pair of linear motion mechanisms, the moving ends of which are configured to move toward or away from the other linear motion mechanism. When the moving ends of the two linear motion mechanisms move toward each other, the ultrasonic probe can be clamped; when the moving ends of the two linear motion mechanisms move away from each other, the ultrasonic probe can be released.

[0051] In one specific embodiment, the linear motion mechanism may include a lead screw and nut mechanism. Fixing blocks 211 are respectively provided at the midpoint of the left and right sides of the second support plate 210 on the side away from the first support plate 110. The fixing blocks 211 extend perpendicular to the second support plate 210 and away from the first support plate 110. Nut fixing holes are provided on the fixing blocks 211, penetrating them in a left-right direction. The lead screw and nut mechanism includes a lead screw 230 and a nut. The nut is fixed within the nut fixing hole, and the lead screw 230 passes through the nut. Rotating the lead screw 230 allows it to move linearly.

[0052] In some embodiments, the locking mechanism includes a guide plate 310 and a guide screw 320. One of the guide plate 310 and the guide screw 320 is disposed on one side of the first support plate 110, and the other is disposed on one side of the second support plate 210. The guide plate 310 and the guide screw 320 are disposed on the same side of the first support plate 110 and the second support plate 210. An arc-shaped guide groove 311 is provided on the guide plate 310, and the center of the arc-shaped guide groove 311 is located on the rotation axis of the first support plate 110 and the second support plate 210. The guide screw 320 passes through the arc-shaped guide groove 311, and a locking nut 330 is also provided on the extended end of the guide screw 320.

[0053] Specifically, the guide plate 310 of the locking mechanism can be set on the left side of the first support plate 110 and extends upward and forward in an arc-shaped trajectory. An arc-shaped guide groove 311 is also provided on the guide plate 310, and the center of the arc-shaped guide groove 311 is located on the rotation axis of the first support plate 110 and the second support plate 210.

[0054] The guide screw 320 of the locking mechanism is located on the left side of the second support plate 210, and extends to the left. The distance between the axis of the guide screw 320 and the rotation axis of the second support plate 210 is equal to the radius of the extension trajectory of the arc-shaped guide groove 311. The guide screw 320 passes through the arc-shaped guide groove 311, and a locking nut 330 is also provided on the guide screw 320. The guide plate 310 is located between the locking nut 330 and the second support plate 210.

[0055] When the locking mechanism is locked, the guide plate 310 is clamped between the locking nut 330 and the second support plate 210, thereby restricting the relative rotation between the second support plate 210 and the first support plate 110. When the locking nut 330 is loosened, the guide plate 310 is released, thereby allowing the second support plate 210 to rotate relative to the first support plate 110.

[0056] In some embodiments, the deep vein puncture and catheterization auxiliary device further includes a puncture needle guide device, which is disposed on the side of the clamping device away from the first support plate 110, and the guide path of the puncture needle guide device passes through the gap between the clamping device and the base through which the puncture needle passes.

[0057] When the ultrasound probe is fixed to the human body using a deep vein puncture and catheterization device, the puncture needle can be directly inserted into the puncture point through the puncture needle guide device, thereby improving the accuracy of the operation and reducing the difficulty of the operation.

[0058] Specifically, the puncture needle guiding device may include at least one guide ring 400 or guide cylinder, the axis of which is perpendicular to the rotation axis between the first support plate 110 and the base and points towards the puncture point.

[0059] An embodiment of this utility model also provides a deep vein puncture and catheterization system, including an ultrasound detection device, a puncture and catheterization assembly, and a deep vein puncture and catheterization auxiliary device as described above. Therefore, it has the same advantages as described above, which will not be repeated here.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A deep vein puncture and catheter placement auxiliary device, characterized in that, include: Base; A clamping device is rotatably connected to the base and is used to clamp or release the ultrasound probe. A gap is provided between the clamping device and the base for the puncture needle to pass through. A locking mechanism is provided between the base and the clamping device, the locking mechanism being used to restrict relative rotation between the clamping device and the base when locked.

2. The deep vein puncture and catheterization auxiliary device according to claim 1, characterized in that, It also includes a puncture needle guide device, which is disposed on the side of the clamping device near the base, and the guide path of the puncture needle guide device passes through the gap between the clamping device and the base through which the puncture needle passes.

3. The deep vein puncture and catheterization auxiliary device according to claim 1, characterized in that, The base includes a first support plate (110) and a flexible protective layer (120) disposed at the bottom of the first support plate (110).

4. The deep vein puncture and catheterization auxiliary device according to claim 3, characterized in that, The clamping device includes: The bottom end of the second support plate (210) is rotatably connected to the front end of the first support plate (110); A clamping assembly is disposed on the side of the second support plate (210) away from the first support plate (110), the clamping assembly being used to clamp or release the ultrasonic probe.

5. The deep vein puncture and catheterization auxiliary device according to claim 4, characterized in that, The clamping assembly includes a pair of elastic clips (220), which are respectively disposed on both sides of the second support plate (210) along the width direction. The elastic clips (220) are used to clamp and wrap around both sides of the ultrasonic probe.

6. The deep vein puncture and catheterization auxiliary device according to claim 4, characterized in that, The clamping assembly includes a pair of linear motion mechanisms, the moving ends of which are used to move toward or away from the other linear motion mechanism.

7. The deep vein puncture and catheterization auxiliary device according to claim 6, characterized in that, The linear motion mechanism includes a lead screw and nut mechanism.

8. The deep vein puncture and catheterization auxiliary device according to claim 4, characterized in that, The locking mechanism includes a guide plate (310) and a guide screw (320). One of the guide plate (310) and the guide screw (320) is disposed on one side of the first support plate (110), and the other is disposed on one side of the second support plate (210). The guide plate (310) and the guide screw (320) are disposed on the same side of the first support plate (110) and the second support plate (210), wherein: The guide plate (310) is provided with an arc-shaped guide groove (311) that passes through the guide plate (310). The center of the arc-shaped guide groove (311) is located on the rotation axis of the first support plate (110) and the second support plate (210). The guide screw (320) passes through the arc-shaped guide groove (311). The extended end of the guide screw (320) is also provided with a locking nut (330).

9. The deep vein puncture and catheterization auxiliary device according to claim 2, characterized in that, The puncture needle guide device includes at least one guide ring (400) or guide cylinder, the axis of which is perpendicular to the rotation axis of the clamping device.

10. A deep vein puncture and catheterization system, characterized in that, It includes an ultrasound detection device, a puncture and catheterization assembly, and a deep vein puncture and catheterization auxiliary device as described in any one of claims 1 to 9.

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