Positioning adjustment device

Abstract

The present application provides a positioning and adjusting device, which mainly includes a base with an accommodating cavity, a moving shaft that passes through the accommodating cavity, and a locking structure that is arranged in the accommodating cavity and can be switched between a locking state and a non-locking state, wherein when the locking structure is in a locking state, the moving shaft can be restricted from moving along its axial direction relative to the base; when the locking structure is in a non-locking state, the moving shaft can be allowed to move along its axial direction relative to the base, thereby adjusting the positioning position of the moving shaft relative to the base. In this way, the present application can simply and conveniently switch between the locking state and the non-locking state, so as to allow the moving shaft to be positioned relative to the base at any position, and has the advantages of simple structural design and compact size.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of medical device technology, and in particular to a positioning and adjustment device. Background Art

[0002] When a medical clamping device is used to clamp tissues with large differences in thickness, an auxiliary device is usually required to assist the clamping device in being locked and fixed at any position, thereby stabilizing the clamping effect.

[0003] The traditional method usually adopts a screw thread connection structure, which uses a screw and a nut to assist in clamping the device to achieve locking and fixation at any position. However, since interventional medical devices usually have high requirements for product volume, smaller threads have greater difficulties in processing, resulting in higher manufacturing costs.

[0004] Therefore, there is an urgent need for a locking and fixing product that is smaller in size and easier to process. Summary of the invention

[0005] In view of the above problems, the present application provides a positioning adjustment device to overcome the above problems or at least partially solve the above problems.

[0006] The first aspect of the present application provides a positioning and adjustment device, which includes: a base having a receiving cavity therein; a movable shaft, which passes through the receiving cavity and can move along its axial direction relative to the base; a locking structure, which is arranged in the receiving cavity and can switch between a locked state and a non-locked state; wherein, when the locking structure is in the locked state, the movable shaft can be restricted from moving along its axial direction relative to the base; when the locking structure is in the non-locked state, the movable shaft can be allowed to move along its axial direction relative to the base, thereby adjusting the positioning position of the movable shaft relative to the base.

[0007] Optionally, the locking structure includes at least one locking member, which is arranged in the accommodating cavity and has a locking portion; wherein the locking member can elastically deform under a force state to allow the movable shaft to move along its axial direction relative to the base, and elastically recover under a non-force state to limit the movable shaft from moving along its axial direction relative to the base.

[0008] Optionally, the locking structure includes two locking members, which are symmetrically arranged in the accommodating cavity, each of the locking members has a locking portion, and the movable shaft is clamped between the two locking portions of the two locking members; wherein the two locking members can be elastically deformed under stress so that the distance between the two locking portions increases to release the movable shaft; and the two locking members can be elastically restored under no stress so that the distance between the two locking portions decreases to lock the movable shaft.

[0009] Optionally, the locking member includes a locking spring.

[0010] Optionally, the locking structure further comprises: a driving member, which is movably disposed in the accommodating cavity; wherein the driving member can be subjected to force to abut against the locking member, so that the locking member generates the elastic deformation.

[0011] Optionally, the driving member includes: an abutment portion, which can be accommodated in the accommodating cavity and is located below the locking spring sheet; an operating portion, which is connected to the abutment portion and extends from the accommodating cavity to the outside of the accommodating cavity; wherein the operating portion can be subjected to force to drive the abutment portion to move vertically upward relative to the accommodating cavity, thereby applying an upward thrust to the locking spring sheet, causing the locking spring sheet to undergo elastic deformation.

[0012] Optionally, the vertical upward movement distance of the abutment portion in the accommodating cavity is greater than the maximum distance between the two locking portions.

[0013] Optionally, the operating portion and the abutting portion are fixedly connected or detachably connected.

[0014] Optionally, the abutment portion includes one of an abutment ball and an abutment block; the abutment block includes one of a trapezoidal, rectangular, square, and conical shape.

[0015] Optionally, the top end of the accommodating cavity includes a penetration portion, and the penetration portion allows the operating portion to pass through and restricts the abutting portion from passing through.

[0016] Optionally, the locking structure includes two driving members located on opposite sides of the movable shaft, and the operating portion includes an integral component simultaneously connected to the two driving members or two separate components respectively connected to the two driving members.

[0017] Optionally, at least one of the two locking parts of the two locking members includes a locking groove; wherein, the cross-sectional shape of the locking groove is adapted to the radial cross-sectional shape of the movable shaft, so that when the locking structure is in the locking state, the locking groove surrounds at least a portion of the circumference of the movable shaft.

[0018] Optionally, the movable axis includes any one of a circular axis, a triangular axis, a square axis, and a polygonal axis.

[0019] Optionally, the locking portion of the locking member also includes an abutment protrusion, which is located on opposite sides of the locking groove and protrudes relative to the locking groove; wherein the abutment portion is arranged below the abutment protrusion, and when the operating portion is subjected to force, the abutment portion applies a thrust force to the abutment protrusion to elastically deform the locking member, and when the operating portion is not subjected to force, the abutment portion releases the thrust force applied to the abutment protrusion to elastically restore the locking member.

[0020] Optionally, the positioning adjustment device can be used in conjunction with a clamping device to control the clamping opening and closing degree of the clamping device by adjusting the positioning position of the movable axis relative to the base.

[0021] It can be seen from the above technical solutions that the positioning and adjustment device of the embodiment of the present application has a simple and convenient locking and switching operation to meet the demand for fine adjustment of the positioning position of the moving shaft relative to the base.

[0022] Furthermore, the positioning adjustment device provided in the embodiment of the present application has the advantages of simple structural design and compact product size. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the positioning and adjustment device according to an embodiment of the present application.

[0025] Figure 2 for Figure 1 Schematic diagram of the decomposition structure.

[0026] Figure 3 It is a top view of the positioning and adjustment device according to an embodiment of the present application.

[0027] Figure 4 and Figure 5 They are Figure 3 AA section schematic diagram and BB section schematic diagram of .

[0028] Figure 6 and Figure 7 They are respectively schematic diagrams of the partial structures of the positioning and adjusting devices in the embodiments of the present application.

[0029] Figures 8 to 10Schematic diagram of the partial structure of the locking structure of different embodiments of the present application.

[0030] Figures 11 to 14 This is a schematic structural diagram of a positioning and adjusting device according to another embodiment of the present application.

[0031] Component number

[0032] 10: Positioning adjustment device;

[0033] 20: base;

[0034] 202: accommodating cavity;

[0035] 204: Wearing Department;

[0036] 30: moving axis;

[0037] 40: locking structure;

[0038] 402: locking member;

[0039] 404: locking portion;

[0040] 406: locking spring;

[0041] 408: driving member;

[0042] 410: Butt;

[0043] 412: Operation department;

[0044] 414: locking groove;

[0045] 416: Contact the convex portion. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the embodiments of the present application should fall within the scope of protection of the embodiments of the present application.

[0047] As mentioned in the background technology section, the current positioning and adjustment devices used to assist medical clamping instruments in achieving arbitrary clamping angle fixation have problems such as large size or difficult product processing. In view of this, the present application provides a positioning and adjustment device that can improve the various technical problems existing in the above-mentioned prior art.

[0048] The specific implementation of the embodiment of the present application will be further explained below in conjunction with the accompanying drawings of the embodiment of the present application.

[0049] Please refer to Figure 1 and Figure 2 , which is a schematic diagram of the overall structure of the positioning and adjusting device 10 of the present application. As shown in the figure, the positioning and adjusting device 10 of the present application mainly includes a base 20, a moving shaft 30, and a locking structure 40.

[0050] The base 20 has a receiving cavity 202 therein.

[0051] In this embodiment, the accommodating cavity 202 formed inside the base 20 can be designed as a closed accommodating cavity or an open accommodating cavity, and the present application does not impose any limitation on this.

[0052] The movable shaft 30 passes through the accommodating cavity 202 (reference body 3 to Figure 5 ) and can move relative to the base 20 along its axial direction.

[0053] Optionally, the movable axis 30 may be a circular axis, a triangular axis, a square axis or a polygonal axis (eg, a hexagonal axis).

[0054] The locking structure 40 is disposed in the receiving cavity 202 of the base 20 and can be switched between a locking state and an unlocking state.

[0055] refer to Figure 6 and Figure 7 In this embodiment, when the locking structure 40 is in the locked state (ie Figure 6 The movable shaft 30 can be restricted from moving relative to the base 20 along its axial direction; when the locking structure 40 is in the unlocked state (i.e. Figure 7 The movable shaft 30 can be allowed to move relative to the base 20 along its axial direction, thereby adjusting the positioning position of the movable shaft 30 relative to the base 20. Thus, the positioning adjustment device 10 of the present application can allow the movable shaft 30 to be positioned relative to the base 10 at any position.

[0056] The positioning adjustment device 10 of this embodiment can be used in conjunction with a clamping device (not shown) to control the clamping opening and closing degree of the clamping device by adjusting the positioning position of the movable axis 30 relative to the base 20, so that the clamping device is suitable for clamping target tissues of various thicknesses and can provide the clamping device with better clamping stability.

[0057] It should be noted that the positioning adjustment device 10 can also be used in combination with other medical devices with similar positioning requirements, and this application does not impose any limitation on this.

[0058] Optionally, the locking structure 40 includes at least one locking member 402, which is arranged in the accommodating cavity 202 and has a locking portion 404. The locking member 402 can be elastically deformed under a force state to allow the movable shaft 30 to move along its axial direction relative to the base 20, or the locking member 402 can be elastically restored under a non-force state to limit the movable shaft 30 from moving along its axial direction relative to the base 20.

[0059] Optionally, the locking structure 40 includes two locking members 402 (see Figure 8 , Fig. 9 ), which are symmetrically arranged in the accommodating cavity 202, each locking member 402 has a locking portion 404, wherein the movable shaft 30 can be clamped between the two locking portions 404 of the two locking members 402 (refer to Figures 4 to 7 ).

[0060] In this embodiment, the two locking members 402 can be elastically deformed under stress, so that the distance between the two locking portions 404 is increased (refer to Fig. 9 The movable shaft 30 is released and can be elastically restored in a non-stressed state so that the distance between the two locking portions 404 is reduced to lock the movable shaft 30 (refer to Fig.10 status shown).

[0061] Optionally, the locking member 402 may be a locking spring.

[0062] Optionally, the locking structure 40 may further include a driving member 408 movably disposed in the accommodating cavity 202 and abutting against the locking member 402 under force to cause the locking member 402 to generate elastic deformation.

[0063] Optionally, the driving member 408 may include an abutment portion 410 and an operating portion 412 .

[0064] refer to Figures 4 to 7 In this embodiment, the abutting portion 410 can be accommodated in the accommodating cavity 202 of the base 20 and is located below the locking spring 406. The operating portion 412 is connected to the abutting portion 410 and extends from the top of the accommodating cavity 202 to the outside of the accommodating cavity 202.

[0065] Optionally, the operating portion 412 and the abutting portion 410 may be fixedly connected (see Figures 2 to 7 Embodiment shown)

[0066] Optionally, the operating portion 412 and the abutting portion 410 may also be detachably connected (see Figures 11 to 14 In the embodiment shown in the figure), for example, the operating portion 412 is detachably inserted into the abutting portion 410 .

[0067] In this embodiment, the operating portion 412 can be driven by force to drive the abutment portion 410 to move vertically upward relative to the accommodating cavity 202, and the abutment portion 410 applies an upward thrust to the locking spring plate 406, so that the locking spring plate 406 is elastically deformed, thereby increasing the spacing distance between the two locking spring plates 406 (that is, the spacing between the locking portions 404), thereby releasing the movable shaft 30 clamped therebetween, so that the movable shaft 30 can move relative to the base 20.

[0068] In this embodiment, the vertical upward movement distance of the abutment portion 410 in the accommodating cavity 202 is greater than the maximum distance between the two locking portions 404, thereby preventing the abutment portion 410 from being moved as a whole to above the locking spring 406 due to excessive force, thereby causing the locking structure 40 to fail abnormally.

[0069] Optionally, the abutment portion 410 may be an abutment ball (see Figures 2 to 7 Embodiment shown) or abutment block (reference Figures 11 to 14 Embodiment shown).

[0070] Preferably, the abutting portion 410 may be an abutting block with a trapezoidal cross section, so that the two inclined surfaces of the abutting block can match the deformed shape of the locking spring 406 in an elastically deformed state, thereby increasing the elastic deformation effect of the locking spring 406 .

[0071] However, the present invention is not limited thereto, and the abutting portion 410 may also be rectangular, square, or conical.

[0072] Optionally, the top of the accommodating cavity 202 may include a penetration portion 204, wherein the penetration portion 204 may allow the operating portion 412 to pass through, so that the operating portion 412 in the accommodating cavity 20 extends to the outside of the accommodating cavity 202 via the penetration portion 204. At the same time, the penetration portion 204 is used to limit the passage of the abutment portion 410 to keep the abutment portion 410 accommodated in the accommodating cavity 202.

[0073] Optionally, the locking structure 40 may include two driving members 408 located on opposite sides of the moving shaft 30 .

[0074] Optionally, the operating portion 412 is an integral component that is connected to the two driving members 408 at the same time (refer to Figures 1 to 7 Embodiment shown).

[0075] Optionally, the operating portion 412 may also be two separate components connected to the two driving members 408 respectively (see Figures 11 to 14 Embodiment shown).

[0076] Optionally, at least one of the two locking portions 404 of the two locking members 402 includes a locking groove 414 .

[0077] In this embodiment, reference Fig. 9and Fig.10 The two locking portions 404 of the two locking members 402 each include a locking groove 414 .

[0078] Preferably, the cross-sectional shape of the locking groove 414 can be adapted to the radial cross-sectional shape of the movable shaft 30. For example, when the movable shaft 30 is a round shaft, the cross-sectional shape of the locking groove 414 can be semicircular. When the movable shaft 30 is a square shaft, the cross-sectional shape of the locking groove 414 can be ㄩ-shaped. With this structural design, when the locking structure 40 is in a locked state, the locking groove 414 can surround at least a portion of the circumference of the movable shaft 30 to achieve a better locking effect between the locking member 402 and the movable shaft 30.

[0079] Optionally, the locking portion 404 of the locking member 402 further includes abutment protrusions 416 , which are located at opposite sides of the locking groove 414 and protrude relative to the locking groove 414 .

[0080] In this embodiment, the abutting portion 410 of the driving member 408 is disposed below the abutting protrusion 416 of the locking member 402. When the operating portion 412 is subjected to force, the abutting portion 410 can apply a thrust to the abutting protrusion 416 of the locking portion 404, so that the locking member 402 is elastically deformed (refer to Figure 7 ), and when the operating portion 412 is not subjected to force, the abutting portion 410 can release the abutting thrust applied to the abutting protrusion 416 to allow the locking member 402 to elastically recover (refer to Figure 6 ).

[0081] In summary, the positioning adjustment device provided in the embodiment of the present application can conveniently control the locking structure to switch between a locking state and an unlocking state, thereby accurately adjusting the positioning position of the moving shaft relative to the base.

[0082] Furthermore, the positioning and adjustment device provided in the embodiment of the present application has the advantages of simple structural design, which can reduce manufacturing costs and has the advantage of small size.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A positioning and adjusting device, It is characterized in that include: A base having a receiving cavity therein; A movable shaft, which passes through the accommodating cavity and can move along its axial direction relative to the base; A locking structure is provided in the accommodating cavity and can be switched between a locking state and an unlocking state; wherein, When the locking structure is in the locking state, the movable shaft can be restricted from moving along its axial direction relative to the base; when the locking structure is in the unlocking state, the movable shaft can be allowed to move along its axial direction relative to the base, thereby adjusting the positioning position of the movable shaft relative to the base. The locking structure comprises: At least one locking member, which is disposed in the accommodating cavity and has a locking portion, wherein the locking member includes a locking spring sheet; Wherein, the locking member can be elastically deformed under stress to allow the movable shaft to move relative to the base along its axial direction, and elastically restored under no stress to limit the movable shaft from moving relative to the base along its axial direction; A driving member is movably disposed in the accommodating cavity; the driving member comprises: An abutment portion, which can be accommodated in the accommodation cavity and is located below the locking spring sheet; An operating portion connected to the abutting portion and extending from inside the accommodating cavity to outside the accommodating cavity; The operating portion may be subjected to force to drive the abutting portion to move vertically upward relative to the accommodating cavity, thereby applying an upward thrust to the locking spring sheet, so that the locking spring sheet is elastically deformed.

2. The positioning and adjusting device according to claim 1, It is characterized in that The locking structure comprises: Two locking members are symmetrically arranged in the accommodating cavity, each of the locking members has a locking portion, and the movable shaft is clamped between the two locking portions of the two locking members; Wherein, the two locking members can be elastically deformed under stress, so that the distance between the two locking parts increases to release the moving shaft; The two locking members can elastically recover in a non-stressed state, so that the distance between the two locking parts is reduced to lock the moving shaft.

3. The positioning adjustment device according to claim 2, It is characterized in that The vertical upward movement distance of the abutting portion in the accommodating cavity is greater than the maximum distance between the two locking portions.

4. The positioning adjustment device according to claim 1, It is characterized in that The operating portion and the abutting portion are detachably connected.

5. The positioning adjustment device according to claim 1, It is characterized in that The abutment portion includes one of an abutment ball and an abutment block; The abutment block includes one of a trapezoidal shape, a rectangular shape, a square shape, and a conical shape.

6. The positioning adjustment device according to claim 1, It is characterized in that The top end of the accommodating cavity includes a penetration portion, and the penetration portion allows the operating portion to pass through and restricts the abutting portion from passing through.

7. The positioning adjustment device according to claim 1, It is characterized in that The locking structure includes two driving members located on opposite sides of the moving shaft, and the operating portion includes an integral component connected to the two driving members at the same time or two separate components connected to the two driving members respectively.

8. The positioning adjustment device according to claim 2, It is characterized in that At least one of the locking portions of the locking member includes a locking groove; The cross-sectional shape of the locking groove is matched with the radial cross-sectional shape of the movable shaft, so that when the locking structure is in the locking state, the locking groove surrounds at least a part of the circumference of the movable shaft.

9. The positioning adjustment device according to claim 8, It is characterized in that The movable axis includes any one of a circular axis, a triangular axis and a square axis.

10. The positioning adjustment device according to claim 8, It is characterized in that The locking portion of the locking member further comprises abutment protrusions, which are located at opposite sides of the locking groove and protrude relative to the locking groove; Wherein, the abutment portion is arranged below the abutment protrusion. When the operating portion is subjected to force, the abutment portion applies a thrust force to the abutment protrusion to elastically deform the locking member. When the operating portion is not subjected to force, the abutment portion releases the thrust force applied to the abutment protrusion to elastically restore the locking member.

11. The positioning adjustment device according to claim 1, It is characterized in that The positioning adjustment device can be used in conjunction with the clamping device to control the clamping opening and closing degree of the clamping device by adjusting the positioning position of the movable shaft relative to the base.

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