Knob convenient for judging rotation direction

Abstract

The utility model relates to the field of medical instruments, in particular to a knob convenient for judging rotation direction, which comprises a connecting main body and an auxiliary structure, the connecting main body comprises an outer shell and an internal component, and the auxiliary structure is arranged on the surface of the outer shell and comprises a transition unit and an attaching unit. The transition unit starts from the center of the outer shell and extends outwards in an arc shape, the attaching unit extends along the shape of the transition unit, a friction structure is arranged on one face of the attaching unit, and when a user applies force to rotate according to the friction structure, clockwise rotation operation is naturally formed.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more particularly to a knob for a medical device delivery system, especially a knob whose structural design allows the user to intuitively determine the direction of rotation and improves operational stability. Background Technology

[0002] In medical device delivery systems, knobs are commonly used to control the movement or rotation of tubing such as catheters and guidewires. Existing knobs typically employ simple cylindrical or gear-shaped designs, which present the following problems: 1. Difficulty in determining direction; the knob surface lacks clear rotation direction indicators, making it easy to confuse clockwise and counterclockwise rotation during operation; 2. Poor grip stability: smooth surfaces or single raised designs can easily cause hand slippage, affecting operational accuracy; 3. Insufficient structural strength: weak internal support, making them prone to deformation or damage over long-term use.

[0003] Existing heart valve clamping devices often face the following problems during implantation: Insufficient expansion control: Traditional clamps are prone to over-expansion during release, resulting in poor fit with the autologous valve and causing paravalvular leakage; Poor adaptability: Rigid structures are difficult to adapt to the anatomical differences of different patients and may damage valve tissue; Difficult positioning: The lack of effective guiding structures leads to implantation position deviation or frequent intraoperative adjustments. Utility Model Content

[0004] This application is made in view of the above and other ideas.

[0005] One of the purposes of this application is to overcome the shortcomings of the prior art, to intuitively indicate the direction of rotation through auxiliary structural design, and to improve operational stability through friction structure and ergonomic transition and contact units, while optimizing the internal structure to enhance mechanical strength, and to introduce a knob that facilitates the determination of the direction of rotation.

[0006] According to another aspect of this application, a knob for facilitating the determination of rotation direction is provided, comprising a connecting body and an auxiliary structure. The connecting body includes an outer shell and an internal component. The auxiliary structure is disposed on the surface of the outer shell and includes a transition unit and a contact unit. The transition unit extends outward in an arc shape from the center of the outer shell, and the contact unit extends along the shape of the transition unit. A friction structure is provided on one side of the contact unit.

[0007] According to one embodiment, the auxiliary structure includes two transition units that are centrally symmetrical. The height of the transition units increases as they move outward along the radial direction, forming a slope that gradually rises from the inside to the outside. A recessed area is formed between the two transition units to facilitate the fit of the user's palm.

[0008] According to one embodiment, the auxiliary structure includes two abutting units that are centrally symmetrical, and the abutting units extend obliquely upward along the transition unit.

[0009] According to one embodiment, the outer casing includes a plurality of indicators disposed on its surface, the indicators being arrow-shaped and oriented clockwise, directly guiding the rotation direction through visual and tactile means; and the total number of the indicators is an even number.

[0010] According to one embodiment, the housing includes six indicators disposed on its surface.

[0011] According to one embodiment, the friction structure includes several vertical stripes. When the knob is placed flat, the friction structure of the contact unit on the left side is located below, and the friction structure of the contact unit on the right side is located above. Furthermore, rotating the knob according to the friction structure rotates clockwise.

[0012] According to one embodiment, the friction structure includes three vertical stripes.

[0013] According to one embodiment, when the knob is laid flat, the friction structure on the left side of the unit is located below, and the one on the right side is located above; when the user applies force to rotate the friction structure, a clockwise rotation operation is naturally formed.

[0014] According to one embodiment, rotating the knob clockwise pushes the tube toward the distal end, and rotating the knob counterclockwise pushes the tube toward the proximal end.

[0015] According to one embodiment, the internal component includes a central member and reinforcing ribs, the reinforcing ribs dividing the internal component into four equal parts, and the central member includes a connecting hole and four fixing holes.

[0016] According to one embodiment, the outer casing includes four through holes, the through holes coinciding with the center line of the fixing hole.

[0017] According to one embodiment, the surface of the abutment unit is arc-shaped, and the length of the abutment unit extending beyond the outer shell is greater than the length of the indicator extending beyond the outer shell.

[0018] According to one embodiment, the transition unit and the abutment unit are integrally formed, and the connecting body and the auxiliary structure are integrally formed, ensuring structural stability and durability.

[0019] According to one embodiment, the central component is connected to the conveying system and is used to control the rotation or movement of the pipes within the conveying system.

[0020] Compared with the prior art, the advantages of the technical solution of this application include at least the following:

[0021] 1. In the prior art, when rotating the knob, bloodstains on the hands will contaminate the knob surface, making it difficult for the surgeon to judge the rotation direction with the naked eye, thus reducing surgical efficiency. This application solves the above problems. The transition unit of this application fits the palm of the human hand, and the contact unit fits the fingers. When the knob is placed flat, the friction structure of the contact unit on the left is located at the bottom, and the one on the right is located at the top. When the fingers touch the friction structure, whether the user operates with the left or right hand, the surgeon only needs to apply force to the friction structure to rotate, which naturally forms a clockwise rotation operation. Conversely, it is a counterclockwise operation. There is no need to judge with vision, and the operation efficiency is extremely high.

[0022] 2. Unlike existing technologies, this application uses an even number of clockwise arrow-shaped indicators (such as 4 or 6) on the surface of the outer casing to form symmetrical and continuous visual guidance, allowing users to quickly identify the rotation direction without thinking, thus reducing the error rate. In addition, the vertical stripe friction structure that adheres to the surface of the unit provides high friction, effectively preventing slippage even when operating with gloves. At the same time, the tactile differences of the stripes can provide real-time feedback on the operating force, improving the accuracy of operation.

[0023] 3. Unlike existing technologies, the knob in this application has ergonomic grip comfort: the transition unit has an arc-shaped slope design that gradually rises from the inside to the outside, which fits the natural curvature of the palm and distributes hand pressure; the recessed area between the two transition units serves as a "grip guide groove" to limit hand deviation and reduce fatigue during long-term operation.

[0024] 4. Unlike existing technologies, the internal components of this application feature a four-part reinforcing rib design that evenly distributes the force on the knob, increasing its torsional load resistance by more than 30%; the integrally formed connecting body and auxiliary structure eliminate joint weaknesses and avoid cracking or deformation caused by frequent rotation.

[0025] 5. Unlike existing technologies, the directional layout of the friction structure in this application (the left contact unit is at the bottom and the right is at the top) is linked with the arrow indicator. Whether the user operates with their left or right hand, they can perceive the rotation direction through touch, adapting to different usage habits.

[0026] 6. Unlike existing technologies, this application features convenient installation: the center lines of the outer casing through holes and the internal fixing holes are aligned to ensure quick positioning when docking with the conveying system, reducing installation and adjustment time; the connection holes of the center component are compatible with various standard drive shaft sizes, expanding the equipment's adaptability range.

[0027] 7. Unlike existing technologies, the contact unit of this application extends beyond the outer shell by a greater length than the indicator, providing a larger contact area for force application without increasing the overall volume; the knob adopts a flat design, which is suitable for the control panel of medical devices with limited space.

[0028] The embodiments of this application can achieve other advantageous technical effects not listed one by one, which may be partially described below; and these other technical effects can be expected and understood by those skilled in the art after reading this application. Attached Figure Description

[0029] The above-described features and advantages of these embodiments, as well as other features and advantages, and the ways in which they are implemented, will become more apparent from the following description in conjunction with the accompanying drawings; and embodiments of this application can be better understood, in which:

[0030] Figure 1 This is a schematic diagram of the knob of this utility model laid flat, with the friction structures located below and above the contact unit.

[0031] Figure 2 This is a schematic diagram of the internal components of this utility model.

[0032] Figure 3 This is a schematic diagram showing the transition unit of this utility model forming a slope that gradually rises from the inside to the outside.

[0033] Figure 4 This is a schematic diagram of the connecting hole and fixing hole of this utility model.

[0034] Figure 5 This is another embodiment of the present invention.

[0035] Figure 6 This is another embodiment of the present invention.

[0036] The features represented by the numbers in the attached diagram are as follows:

[0037] 1-Connecting body, 11-Outer shell, 111-Indicator, 12-Internal component, 121-Center component, 1211-Connecting hole, 1212-Fixing hole, 122-Reinforcing rib, 2-Auxiliary structure, 21-Transition unit, 22-Abutting unit, 221-Friction structure. Detailed Implementation

[0038] The details of one or more embodiments of this application will be set forth in the following description of the accompanying drawings and specific embodiments. Other features, objects, and advantages of this application will become clear from these descriptions, drawings, and claims.

[0039] It should be understood that the illustrated and described embodiments are not limited in application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the drawings. The illustrated embodiments may be other embodiments; and can be implemented or performed in various ways. The examples are provided by way of explanation rather than limitation of the disclosed embodiments. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of this application without departing from the scope or spirit of this disclosure. For example, features illustrated or described as part of one embodiment may be used with another embodiment to still produce another embodiment. Therefore, this disclosure covers such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0040] Similarly, it is understood that the phrases and terms used in this document are for descriptive purposes and should not be considered restrictive. The use of “including,” “contains,” or “has,” and their variations, in this document is intended to include, in an open-ended manner, the items listed thereafter, their equivalents, and any additional items.

[0041] The present application will now be described in more detail with reference to various embodiments and examples of several aspects thereof.

[0042] In this application, the terms "proximal" or "proximal" refer to the end or side closer to the surgeon, and "distal" or "distal" refer to the end or side farther from the surgeon. Example 1

[0043] like Figure 1 and Figure 2 The illustration shows a knob according to an embodiment of the present application for facilitating the determination of rotation direction, including a connecting body 1 and an auxiliary structure 2. The connecting body 1 includes an outer shell 11 and an internal component 12. The auxiliary structure 2 is disposed on the surface of the outer shell 11. The auxiliary structure 2 includes a transition unit 21 and a contact unit 22. The transition unit 21 extends outward in an arc shape from the center of the outer shell 11. The contact unit 22 extends along the shape of the transition unit 21, and a friction structure 221 is provided on one side of the contact unit 22.

[0044] In this first embodiment, the auxiliary structure 2 includes two transition units 21, which are centrally symmetrical. The height of the transition units 21 increases radially outward, forming a gradually rising slope from the inside out. A recessed area is formed between the two transition units 21 to facilitate the user's palm fitting comfortably. Figure 3 As shown.

[0045] In this first embodiment, the auxiliary structure 2 includes two abutting units 22, which are centrally symmetrical, and the abutting units 22 extend obliquely upward along the transition unit 21.

[0046] In this first embodiment, the outer shell 11 includes a plurality of indicators 111 disposed on its surface. The indicators 111 are arrow-shaped and the direction of the indicators 111 is clockwise, directly guiding the rotation direction through vision and touch; and the total number of the indicators 111 is an even number.

[0047] In this first embodiment, the outer casing 11 includes six indicators 111 disposed on its surface, such as... Figure 1 As shown.

[0048] In this first embodiment, the friction structure 221 includes several vertical stripes. When the knob is placed flat, the friction structure 221 of the contact unit 22 on the left is located below, and the friction structure 221 of the contact structure on the right is located above. Furthermore, rotating the knob while pressing the friction structure 221 rotates clockwise.

[0049] In this first embodiment, the friction structure 221 includes three vertical stripes.

[0050] In this first embodiment, when the knob is laid flat, the friction structure 221 of the left abutment unit 22 is located at the bottom, and the friction structure 221 of the right abutment unit 22 is located at the top, as shown below. Figure 1 As shown; when the user applies force to rotate the friction structure 221, a clockwise rotation operation is naturally formed.

[0051] In this first embodiment, rotating the knob clockwise pushes the pipe toward the distal end, and rotating the knob counterclockwise pushes the pipe toward the proximal end.

[0052] In this first embodiment, the internal component 12 includes a central component 121 and reinforcing ribs 122. The reinforcing ribs 122 divide the internal component 12 into four equal parts. The central component 121 includes one connecting hole 1211 and four fixing holes 1212, as shown below. Figure 4 As shown.

[0053] In this first embodiment, the outer shell 11 includes four through holes to facilitate the entry of a screwdriver, and the center lines of the through holes coincide with those of the fixing holes.

[0054] In this first embodiment, the surface of the abutment unit 22 is arc-shaped, and the length of the abutment unit 22 extending beyond the outer shell 11 is greater than the length of the indicator 111 extending beyond the outer shell 11.

[0055] In this first embodiment, the transition unit 21 and the abutment unit 22 are integrally formed, and the connecting body 1 and the auxiliary structure 2 are integrally formed, ensuring structural stability and durability.

[0056] In this first embodiment, the central component 121 is connected to the conveying system and is used to control the rotation or movement of the pipes within the conveying system. Example 2

[0057] The difference from Embodiment 1 is that the junction of the connecting body 1 and the auxiliary structure 2 is elliptical, and the transition unit 21 does not originate from the center of the outer shell.

[0058] In this second embodiment, as Figure 5 The illustration shows a knob according to an embodiment of the present application for facilitating the determination of rotation direction, including a connecting body 1 and an auxiliary structure 2. The connecting body 1 includes an outer shell 11 and an internal component 12. The auxiliary structure 2 is disposed on the surface of the outer shell 11. The auxiliary structure 2 includes a transition unit 21 and a contact unit 22. The transition unit 21 extends outward in a straight line from the surface of the outer shell 11. The contact unit 22 extends along the shape of the transition unit 21, and a friction structure 221 is provided on one side of the contact unit 22.

[0059] In this second embodiment, the auxiliary structure 2 includes two transition units 21, which are centrally symmetrical. The height of the transition units 21 increases radially outward, forming a gradually rising slope from the inside out. A recessed area is formed between the two transition units 21 to facilitate the user's palm fitting comfortably. Figure 5 As shown.

[0060] In this regard, the relevant construction and concept of Embodiment 2 are similar to those of Embodiment 1, and therefore will not be described again here. Example 3

[0061] The difference from Embodiment 3 is that the knob is provided with only one abutting unit 22, and the width of the transition unit 21 gradually decreases as it extends outward from the center of the outer shell 11, while the width of the transition unit 21 on the side without the abutting unit 22 gradually increases as it extends outward.

[0062] In this third embodiment, as Figure 6 The illustration shows a knob according to an embodiment of the present application for facilitating the determination of rotation direction, including a connecting body 1 and an auxiliary structure 2. The connecting body 1 includes an outer shell 11 and an internal component 12. The auxiliary structure 2 is disposed on the surface of the outer shell 11. The auxiliary structure 2 includes a transition unit 21 and a contact unit 22. The transition unit 21 extends outward in a straight line from the surface of the outer shell 11. The contact unit 22 extends along the shape of the transition unit 21, and a friction structure 221 is provided on one side of the contact unit 22.

[0063] In this third embodiment, the auxiliary structure 2 includes two transition units 21 and one abutting unit 22. The transition unit 21 connecting the abutting unit 22 has a decreasing width as it extends radially outward, forming a converging slope. The other end of the transition unit 21 does not have an abutting unit, but its width gradually increases as it extends outward, such as... Figure 6 As shown.

[0064] In this regard, the relevant construction and concept of Embodiment 3 are similar to those of Embodiment 1, and therefore will not be described again here.

[0065] The foregoing description of several embodiments of this application has been provided for illustrative purposes. This foregoing description is not intended to be exhaustive, nor is it intended to limit the application to the precise configurations, constructions, and / or steps disclosed; obviously, many modifications and variations can be made in light of the teachings above. The scope of this invention and all its equivalents are intended to be defined by the appended claims.

Claims

1. A knob for facilitating determination of a rotational direction, comprising a main body and an auxiliary structure, characterized in that, The connecting body comprises an outer shell and an inner member, the auxiliary structure is arranged on the surface of the outer shell, the auxiliary structure comprises a transition unit and an abutting unit, the transition unit extends outward on the surface of the outer shell, the abutting unit extends along the shape of the transition unit, and one side of the abutting unit is provided with a friction structure.

2. The knob of claim 1, wherein The auxiliary structure comprises two transition units which are centrally symmetric, the transition unit is higher along the radial direction as it extends outward, and a recessed area is formed between the two transition units to facilitate the user's palm to fit.

3. The knob of claim 1, wherein The auxiliary structure comprises two abutting units which are centrally symmetric, and the abutting unit extends upward along the transition unit.

4. The knob of claim 1, wherein The outer shell comprises a plurality of indicating elements arranged on its surface, the indicating elements are arrow-shaped, the direction of the indicating elements is clockwise, and the total number of the indicating elements is even.

5. The knob of claim 1, wherein The friction structure comprises a plurality of vertical stripes, when the knob is placed horizontally, the friction structure of the abutting unit on the left side is located below, and the friction structure of the abutting unit on the right side is located above; and the knob is rotated clockwise when it is rotated according to the friction structure.

6. The knob of claim 1, wherein The inner member comprises a center piece and a reinforcing rib, the reinforcing rib equally divides the inner member into four parts, and the center piece comprises a connecting hole and four fixing holes.

7. The knob of claim 1, wherein The auxiliary structure comprises two transition units which are respectively higher along the radial direction as they extend outward and lower along the radial direction as they extend outward.

8. The knob of claim 4, wherein The surface of the abutting unit is arc-shaped, and the length of the abutting unit exceeding the outer shell is greater than the length of the indicating element exceeding the outer shell.

9. The knob of claim 1, wherein The transition unit and the abutting unit are integrally formed, and the connecting body and the auxiliary structure are integrally formed.

10. The knob of claim 6, wherein The center piece is connected with a conveying system to control the rotation or movement of a pipe in the conveying system.

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