Rotary head with haptic feedback and vessel closure device

Abstract

The utility model discloses a kind of rotary head and blood vessel closure with tactile feedback, including shell, rotatablely connected in the rotary head of shell front end, and tactile feedback unit is located between shell and rotary head;Tactile feedback unit includes the trigger structure being located on rotary head, and tactile feedback piece is located on shell and is elastically contacted with trigger structure, wherein trigger structure is the multiple trigger ratchets of ring being located on the surface of rotary head;When rotary head rotates, periodic contact, deformation, disengagement and springback between tactile feedback piece and trigger structure occur, to generate tactile feedback;The blood vessel closure includes the rotary head with tactile feedback of this.By the above-mentioned mode, the utility model can realize stable accurate adjustment in compact space by highly integrated tactile feedback unit and avoidance space, effectively eliminate shaking and angle backoff, while being able to convert rotation into clear periodic tactile and auditory signal, significantly improve operation hand feeling and controllability.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a rotating head and vascular closure device with tactile feedback. Background Technology

[0002] A vascular closure device is a medical instrument used in interventional vascular surgery to quickly and reliably close blood vessels or other tissues during minimally invasive procedures to control bleeding and reduce the risk of postoperative complications. These devices typically include a jaw closure mechanism, a handle control section, and a rotating head for adjusting the jaw angle. As a key component directly manipulated during surgery, the stability of the rotating head and the feel of its angle adjustment directly impact the precision and efficiency of the procedure.

[0003] Currently, most commercially available vascular closure devices allocate their internal space primarily to the jaw closure mechanism and the wiring section within the handle. Due to the compact overall structure of the device, the space available for the rotating head and its adjustment design is very limited, leading to several shortcomings in existing rotating heads: Insufficient structural stability: Due to the small space, there may be assembly gaps or insufficient structural rigidity between the rotating head and related transmission components, which may cause the rotating head to back out when adjusted to a certain angle, seriously affecting the accuracy and reliability of operation. Lack of operational feedback: Most products do not have effective feedback. The rotating head lacks clear tactile feedback when switching angles, making it impossible for operators to confirm whether the operation is in place and increasing the risk of misoperation. Poor feel: The aforementioned shaking and lack of feedback together result in an uncertain feel when operating the rotating head, increasing the operator's workload.

[0004] The aforementioned issues not only affect the surgical experience but also potentially impact surgical success rates and patient safety. Therefore, optimizing the structure of the rotating head of the vascular closure device within a limited space to improve its adjustment accuracy, operational feedback, and overall stability has become an urgent problem to be solved. Utility Model Content

[0005] The main technical problem solved by this utility model is to provide a rotating head and vascular closure device with tactile feedback. Through the highly integrated tactile feedback unit and clearance space, stable and precise adjustment can be achieved in a compact space, effectively eliminating shaking and angle backlash. At the same time, the rotation can be converted into clear periodic tactile and auditory signals, significantly improving the operating feel and controllability.

[0006] To solve the above-mentioned technical problems, the present invention provides a rotating head with tactile feedback, comprising: a housing; a rotating head rotatably connected to the front end of the housing; and a tactile feedback unit disposed between the housing and the rotating head. The tactile feedback unit includes a trigger structure disposed on the rotating head, and a tactile feedback element disposed on the housing and elastically abutting against the trigger structure, wherein the trigger structure is a plurality of trigger ratchet teeth arranged around the surface of the rotating head. When the rotating head rotates, the tactile feedback element and the triggering structure undergo periodic contact, deformation, disengagement and rebound, thereby generating tactile feedback.

[0007] In a preferred embodiment of the present invention, the outer shell includes a left outer shell and a right outer shell that are connected to each other, and the inner walls of the left outer shell and the right outer shell together form a fixing groove.

[0008] In a preferred embodiment of the present invention, the tactile feedback device includes a fixed rod pressed into the fixed slot, an elastic arm extending from the fixed rod by bending, and a trigger head formed at the end of the elastic arm.

[0009] In a preferred embodiment of this utility model, the bending angle between the elastic arm and the fixed rod is 120-150°.

[0010] In a preferred embodiment of this utility model, the bending angle between the elastic arm and the fixed rod is 130-140°.

[0011] In a preferred embodiment of this utility model, the tactile feedback element is an elastic element, including a metal element or a rigid plastic element.

[0012] In a preferred embodiment of the present invention, the front end of the rotating head is provided with a frustum-shaped trigger seat, and the trigger ratchet teeth are evenly distributed circumferentially on the surface of the trigger seat.

[0013] In a preferred embodiment of the present invention, the trigger head has an arc-shaped contact surface that engages with the inclined surface of the trigger ratchet.

[0014] In a preferred embodiment of the present invention, the inner wall of the outer shell is provided with a radial clearance space corresponding to the running path of the trigger ratchet, providing interference-free movement space for the trigger ratchet.

[0015] In a preferred embodiment of this utility model, the outer circumference of the rear end of the rotating head is provided with a periodic anti-slip structure.

[0016] In a preferred embodiment of this utility model, the periodic anti-slip structure is a groove or protrusion arranged at equal intervals.

[0017] In a preferred embodiment of this utility model, the number of periodic anti-slip structures is 30-40.

[0018] To solve the above-mentioned technical problems, the present invention provides a vascular closure device, including the aforementioned rotating head with tactile feedback.

[0019] The beneficial effects of this utility model are: High stability: The compact and stable structure reduces head wobbling, ensuring precise angle adjustment and stability after locking, and preventing angle backlash; Clear tactile feedback: The tactile feedback unit produces clear and forceful tactile feedback during rotation, providing the operator with clear tactile confirmation and greatly improving the operating feel; High space efficiency: High integration ensures clear feedback without occupying excessive space, meeting the overall compact requirements of the instrument. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of a preferred embodiment of the vascular closure device of this utility model; Figure 2 This is a schematic diagram of the structure of a preferred embodiment of the left outer shell of the vascular closure device of this utility model; Figure 3 This is a schematic diagram of a preferred embodiment of the tactile feedback component of the vascular closure device of this utility model; Figure 4 This is a schematic diagram of a preferred embodiment of the rotating head of the vascular closure device of this utility model; Figure 5 This is a schematic diagram of a preferred embodiment of the tactile feedback unit of the vascular closure device of this utility model; Figure 6 yes Figure 5 A magnified view of a section at point A in the middle; The components in the attached diagram are labeled as follows: 1. Outer shell; 11. Left outer shell; 12. Right outer shell; 13. Fixing slot; 14. Clearance space; 2. Rotating head; 21. Trigger seat; 22. Trigger ratchet; 23. Periodic anti-slip structure; 3. Tactile feedback element; 31. Fixing rod; 32. Elastic arm; 33. Trigger head; 331. Arc-shaped contact surface. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 6 : This utility model provides a rotary head with tactile feedback, which provides the operator with accurate and clear tactile feedback during the adjustment process, thereby improving the accuracy and stability of the operation. It includes a housing 1, a rotary head 2, and a tactile feedback unit disposed between the housing 1 and the rotary head 2.

[0024] Specifically, the first is the outer shell 1, which includes a left outer shell 11 and a right outer shell 12 connected to each other by means of snap-fit ​​or ultrasonic welding, ensuring that the outer shell as a whole has good structural strength and sealing performance, effectively protecting the internal components.

[0025] The inner walls of the left outer shell 11 and the right outer shell 12 together define a fixing slot 13, which matches the fixing rod 31 of the haptic feedback component 3 described later, so as to realize the precise positioning and fixing of the haptic feedback component 3 in the outer shell 1 and ensure the stable realization of the haptic feedback function.

[0026] Secondly, there is the rotating head 2, which is rotatably connected to the front end of the housing 1 through shaft hole fitting and other means, and is divided into a front-end triggering structure and a rear-end operating structure.

[0027] The rotating head 2 has a frustum-shaped trigger seat 21 at its front end. The frustum-shaped structure provides a reasonable tilt angle for the arrangement of the trigger ratchet 22, while avoiding interference with other components during rotation. On the outer surface of the trigger seat 21, a plurality of trigger ratchet 22 are evenly distributed in a circumferential ring. The tooth height, tooth pitch and tilt angle of all trigger ratchet 22 are consistent, which together form a periodic triggering structure.

[0028] To facilitate the operator's operation of the rotating head 2, a periodic anti-slip structure 23 is provided on the outer circumference of the rear end of the rotating head 2. This periodic anti-slip structure consists of 30-40 grooves or protrusions arranged at equal intervals to ensure that the operator obtains sufficient friction when rotating, preventing hand slippage, reducing the shaking of the rotating head, ensuring the accuracy of rotation adjustment, and preventing the operating feel from being affected by excessively high or low structural density.

[0029] As a preferred option, the number of periodic anti-slip structures is 36, at which point the friction and adjustment precision reach the best balance, which can accommodate operators with different hand sizes and operating habits.

[0030] Furthermore, there is a tactile feedback unit, which converts the rotation of the rotating head 2 into a tactile signal perceptible to the operator. It includes the aforementioned trigger ratchet 22 and a tactile feedback element 3 mounted on the housing 1, which cooperate through elastic contact. When the rotating head 2 rotates, the tactile feedback element 3 and the trigger ratchet 22 periodically contact, deform, and disengage, thereby generating tactile feedback.

[0031] The tactile feedback element 3 is an elastic element, including but not limited to metal or hard plastic parts. These materials have good elasticity and fatigue resistance, and can remain stable during long-term repeated deformation, avoiding weakening or failure of the feedback signal due to material fatigue. Among them, stainless steel is preferred for metal parts.

[0032] In detail, the haptic feedback device 3 includes a fixed rod 31, an elastic arm 32, and a trigger head 33.

[0033] The fixing rod 31 is straight and its size matches the fixing slot 13 on the inner wall of the housing 1. It is pressed into the fixing slot 13 by interference fit or press-fit to ensure that the tactile feedback component 3 is fixed in position inside the housing 1 and will not be displaced as the rotating head 2 rotates.

[0034] The elastic arm 32 extends from one end of the fixed rod 31 by bending. The bending angle between the elastic arm 32 and the fixed rod 31 is 120-150°. Within this angle range, the elastic arm 32 can provide sufficient elastic stroke to ensure that the trigger head 33 can smoothly engage with the trigger ratchet 22, and can also generate a stable restoring force after deformation to ensure the clarity of the feedback signal. Preferably, the bending angle between the elastic arm 32 and the fixed rod 31 is 130-140°.

[0035] The trigger head 33 is formed at the end of the elastic arm 32 and has an arc-shaped contact surface 331. The arc-shaped contact surface 331 is configured to contact the inclined surface of the trigger ratchet 33. This combination of the inclined surface and the arc surface can provide a continuous and smooth force feedback transition when the two slide relative to each other, thus optimizing the operating feel.

[0036] Based on the above structure, in order to avoid interference between the rotating head 2 and the outer shell 1 during the rotation process, the inner wall of the outer shell 1 is provided with a radial clearance space 14 to correspond to the running path of the trigger ratchet 22.

[0037] This clearance ensures that when the elastic arm 32 is compressed and deformed, the trigger ratchet 22 can pass smoothly along its entire movement trajectory without interfering with the housing 1, thereby ensuring the stability and reliability of the tactile feedback.

[0038] The working principle of the rotating head with tactile feedback of this utility model is as follows: When the operator moves the periodic anti-slip structure 23 at the rear end of the rotating head 2 to make it rotate relative to the outer shell 1, the inclined surface of the trigger ratchet 22 begins to contact the arc-shaped contact surface 331 of the trigger head 33 and generates radial extrusion force on the trigger head 33, forcing the elastic arm 32 to undergo elastic deformation and accumulating elastic potential energy. As the rotating head 2 continues to rotate, the trigger head 33 gradually slides along the inclined surface of the trigger ratchet 22 to the apex of the ratchet. When the trigger head 33 passes the apex, the squeezing force of the trigger ratchet 22 on the trigger head 33 disappears instantly, and the elastic potential energy accumulated by the elastic arm 32 is released instantly, causing the trigger head 33 to quickly rebound and "fall into" the next adjacent ratchet. At the moment the trigger head 33 rebounds, a slight but clear "click" sound is heard, and at the same time, the rebound of the elastic arm 32 produces a noticeable tactile vibration. The sound and vibration together constitute a complete tactile feedback, which is transmitted to the operator's hand. As the rotating head 2 continues to rotate, this "contact-deformation-disengagement-rebound" process will continue to occur with the periodic distribution of the trigger ratchet 22, providing precise and clear tactile feedback for each step of the operator's rotation operation. This allows the operator to judge the rotation angle and adjustment progress of the rotating head 2 through hand perception without visual observation, thus improving the convenience and accuracy of operation.

[0039] Based on the aforementioned rotating head with tactile feedback, this invention also provides a preferred embodiment of a vascular closure device. The rotating head with tactile feedback, as a key adjustment component, is integrated into the operating end of the vascular closure device to achieve precise adjustment and control of the closure assembly.

[0040] When the operator adjusts the closure component by rotating the head, each tactile feedback signal corresponds to a tiny adjustment of the closure component. The operator can precisely control the closure force according to the number and intensity of the feedback signals, avoiding vascular damage due to over-adjustment or insecure closure due to under-adjustment.

[0041] Meanwhile, the periodic anti-slip structure at the rear of the rotating head ensures that even if the operator's hand trembles slightly or the surgical environment is complex, the rotating head can still be moved stably during the operation, avoiding operational errors.

[0042] The beneficial effects of this utility model, which features a rotating head with tactile feedback and a blood vessel closure device, are: High space utilization: The entire haptic feedback unit is highly integrated and, with the help of space avoidance, ensures the realization of haptic feedback function without increasing the overall volume, achieving a balance between compactness and performance; Stable structure: The elastic feedback plate is firmly installed without displacement, and the rotating head is stably matched, reducing the shaking of the rotating head, ensuring the accuracy of angle adjustment and the stability after locking, and avoiding angle back-back. Clear tactile feedback: By triggering the ratchet and the elastic feedback element, the continuous rotational motion is transformed into discrete, periodic "click" sounds and tactile vibrations, providing the operator with clear tactile and auditory feedback and ensuring a clear and distinct operating feel.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A rotating head with haptic feedback, characterized in that, include: shell; A rotating head is rotatably connected to the front end of the housing; A tactile feedback unit is located between the outer shell and the rotating head; The tactile feedback unit includes a trigger structure disposed on the rotating head, and a tactile feedback element disposed on the housing and elastically abutting against the trigger structure, wherein the trigger structure is a plurality of trigger ratchet teeth arranged around the surface of the rotating head. When the rotating head rotates, the tactile feedback element and the triggering structure undergo periodic contact, deformation, disengagement and rebound, thereby generating tactile feedback.

2. The rotating head with tactile feedback according to claim 1, characterized in that, The outer casing includes a left outer casing and a right outer casing that are connected to each other, and the inner walls of the left outer casing and the right outer casing together form a fixing slot.

3. The rotating head with tactile feedback according to claim 2, characterized in that, The tactile feedback device includes a fixed rod pressed into the fixed slot, an elastic arm extending from the fixed rod by bending, and a trigger head formed at the end of the elastic arm.

4. The rotating head with tactile feedback according to claim 3, characterized in that, The bending angle between the elastic arm and the fixed rod is 120-150°.

5. The rotating head with tactile feedback according to claim 4, characterized in that, The bending angle between the elastic arm and the fixed rod is 130-140°.

6. The rotating head with tactile feedback according to claim 3, characterized in that, The tactile feedback element is an elastic element, including metal or rigid plastic parts.

7. The rotating head with tactile feedback according to claim 3, characterized in that, The front end of the rotating head is provided with a frustum-shaped trigger seat, and the trigger ratchet teeth are evenly distributed circumferentially on the surface of the trigger seat.

8. The rotating head with haptic feedback according to claim 7, characterized in that, The trigger head has an arc-shaped contact surface that engages with the inclined surface of the trigger ratchet.

9. The rotating head with haptic feedback according to claim 7, characterized in that, The inner wall of the outer casing has a radial clearance space corresponding to the running path of the trigger ratchet, providing interference-free movement space for the trigger ratchet.

10. The rotating head with haptic feedback according to claim 7, characterized in that, The outer circumference of the rear end of the rotating head is provided with a periodic anti-slip structure.

11. The rotating head with haptic feedback according to claim 10, characterized in that, The periodic anti-slip structure consists of grooves or protrusions arranged at equal intervals.

12. The rotating head with haptic feedback according to claim 11, characterized in that, The number of periodic anti-slip structures is 30-40.

13. A vascular closure device, characterized in that, Including a rotating head with haptic feedback as described in any one of claims 1-12.

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