Bracket structure for pressing and holding device

Abstract

The utility model is applicable to the technical field of medical instruments, and provides a bracket structure for a pressing and holding device, which comprises a base component, a support component inserted into the base component, a clamping frame clamped on the support component and a guide component rotationally connected with the clamping frame through an adjusting component. Each guide assembly comprises a first guide frame and a second guide frame installed in the first guide frame in a sliding mode. The device solves the problems that the bearing force provided by the bracket is insufficient to completely counteract the stress of the valve stent, and the valve stent is inclined or shaken due to stress in the pressing and holding process of the valve stent, so that the probability of inclination or shaking of the valve stent due to stress can be reduced by adjusting the bearing angle and the bearing area of the bracket, and the stability of the valve stent is improved. And the valve stent is prevented from being deformed when being pressed and held.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field more specifically, it relates to a bracket structure for presser. BACKGROUND

[0002] Heart valve disease is a common heart disease, and the treatment of heart valve disease mostly adopts a catheter delivery assembly to deliver and implant an artificial heart valve. The artificial valve needs to be installed in a crimped state at the distal end of the catheter delivery assembly before implantation, which requires the use of a presser to press and hold the valve stent carrying the artificial valve and sleeved on the distal end of the catheter delivery assembly, so that the diameter of the valve stent is reduced, and the valve stent carrying the artificial valve can be delivered to the lesion site of the heart valve of the human body through the catheter delivery assembly via the blood vessel.

[0003] The existing presser generally has a bracket to support the catheter delivery assembly from the bottom, so that the valve stent at the end of the catheter delivery assembly is aligned with the pressing hole on the presser. This facilitates the efficiency of placing the valve stent into the pressing hole and prevents the valve stent from tilting in the pressing hole due to the inclination or shaking of the catheter delivery assembly, thereby ensuring uniform stress on the valve stent during the pressing process.

[0004] However, only a small part of the area at the bottom of the valve stent can be contacted during the supporting process of the bracket, and the bearing capacity provided by the bracket is not enough to completely offset the stress on the valve stent. The valve stent may still tilt or shake during the pressing process. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a bracket structure for a presser that can adjust the supporting angle and area of the bracket, reduce the probability of stress tilting or shaking of the valve stent, and avoid deformation of the valve stent during pressing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A bracket structure for a presser, comprising a base assembly, a support assembly inserted into the base assembly, a clamping bracket clamped on the support assembly, and a guide assembly rotatably connected to the clamping bracket through an adjusting assembly, the guide assembly is symmetrically arranged about the clamping bracket, each guide assembly comprises a first guide bracket and a second guide bracket slidably installed in the first guide bracket, each adjusting assembly comprises a first connecting piece connected to the clamping bracket and a second connecting piece connected to the guide assembly, and a gear meshing with the second connecting piece is installed on the first connecting piece.

[0008] The utility model further sets up: first connecting piece one side is provided with first connecting plate with the bottom connection of joint frame, first connecting piece end installs pivot, gear is installed in pivot end.

[0009] The utility model further sets up: second connecting piece one side is provided with second connecting plate with the bottom connection of guide component, second connecting piece inside is provided with the plug -in cavity, first connecting piece plugs -in in plug -in cavity inside.

[0010] The utility model further sets up: second connecting piece inside is provided with cooperation piece, cooperation piece inner wall is provided with the cooperation screw thread that can be engaged with gear.

[0011] The utility model further sets up: every first guide frame is provided with the accommodation groove away from the one side of joint frame, and the second guide frame is slidably installed in the accommodation groove.

[0012] Through adopting above -mentioned technical scheme, the bracket structure can pull the second guide frame to make it draw out from the accommodation groove, and the first arc portion and the second arc portion are shaped as the contact of the guide pipe conveying assembly and the valve support to provide support for the guide component, so as to expand the support area of the guide component.

[0013] The utility model further sets up: the base assembly top is provided with the insertion slot of the pressure holder installation, and the base assembly top is provided with the support groove of the support component insertion.

[0014] The utility model further sets up: the support component includes the limiting frame of plug -in in the base assembly and the support frame of the joint of joint frame, and the limiting frame includes the plug -in plate and the plug -in beam of vertical installation in the side wall of plug -in plate.

[0015] The utility model further sets up: the support frame middle part is provided with support arc face, and both ends are provided with extension surface, and the extension surface side wall is provided with the limiting inclined plane.

[0016] The utility model further sets up: the joint frame is detachably installed on the support frame, the middle part of joint frame is provided with arc portion, and both sides of joint frame are provided with extension portion, the arc portion is attached with support arc face, and the extension portion is attached with extension surface.

[0017] The utility model further sets up: the extension portion bottom is provided with joint portion, and the joint portion inside forms the joint groove attached with the bottom of support frame.

[0018] The utility model has the advantages of:

[0019] When the catheter delivery assembly is docked with the compression hole on the compression device, the first guide frame and the second guide frame jointly provide support for the catheter delivery assembly and the valve stent bottom. By rotating the second guide frame, the first connecting member and the second connecting member are rotated, so that the angle of the guide assembly relative to the clamping frame is adjusted. By adjusting the angle of the guide assembly and increasing the support area of the guide assembly, the probability of the valve stent being inclined or shaken under stress is reduced, and deformation of the valve stent during compression is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described below in combination with the drawings and examples.

[0021] Figure 1 It is a use schematic view of the bracket structure of the compression device of the utility model.

[0022] Figure 2 It is a structure schematic view of the bracket structure of the compression device of the utility model.

[0023] Figure 3 It is an explosion structure schematic view of the bracket structure of the compression device shown in the figure. Figure 2

[0024] It is a structure schematic view of the support assembly shown in the figure. Figure 4 Figure 3 It is a structure schematic view of the clamping frame shown in the figure.

[0025] Figure 5 Figure 3 It is a structure schematic view of the clamping frame shown in the figure.

[0026] Figure 6 It is a structure schematic view of the clamping frame shown in the figure. Figure 5

[0027] It is an explosion structure schematic view of the clamping frame shown in the figure. Figure 7 Figure 5 It is an explosion structure schematic view of the adjusting assembly shown in the figure.

[0028] Figure 8 Figure 7 It is a sectional view of the adjusting assembly shown in the figure.

[0029] Figure 9 It is a sectional view of the adjusting assembly shown in the figure. Figure 7

[0030] Reference signs: 100, bracket structure; 1, base assembly; 11, support groove; 12, insertion groove; 2, support assembly; 21, limiting frame; 211, insertion plate; 212, insertion beam; 22, support frame; 221, support camber surface; 222, extension surface; 223, limiting inclined surface;

[0031] ​​​​​3, card holder; 31, arc part; 32, extension; 33, card joint; 331, card slot;

[0032] 4, guide assembly; 41, first guide frame; 411, first arc part; 412, accommodating groove; 42, second guide frame; 421, second arc part;

[0033] 5, adjusting assembly; 51, first connecting piece; 511, first connecting plate; 512, pivot; 513, gear; 52, second connecting piece; 521, second connecting plate; 522, plug-in cavity; 523, matching piece; 524, matching thread;

[0034] 200, pressure holder. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer, the utility model will be described in detail in combination with the drawings. The drawing is a simplified schematic diagram, which only schematically illustrates the basic of the utility model, so it only shows the structure related to the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0036] Please refer to Figure 1 and Figure 6 A bracket structure for pressure holder, comprising base assembly 1, support assembly 2 inserted in the inside of base assembly 1, card holder 3 clamped on support assembly 2 and guide assembly 4 rotationally connected with card holder 3 through adjusting assembly 5. The inside of base assembly 1 can install pressure holder 200, support assembly 2 is inserted in the inside of base assembly 1 to ensure reliable connection, and card holder 3 is detachably connected with support assembly 2. When the catheter delivery assembly is butt joint with the pressure holding hole on the pressure holder 200, the catheter delivery assembly is placed on the card holder 3, which is centered and positioned by the card holder 3, and at this time the guide assembly 4 can support the catheter delivery assembly from the bottom.

[0037] Please refer to Figures 1-3 The top of base assembly 1 is provided with insertion slot 12 for installing pressure holder 200, and base assembly 1 is integrally formed, and the shape of insertion slot 12 is matched with the shape of pressure holder 200. The shape of pressure holder 200 in the application is only one example, and in some other embodiments, the shape of pressure holder 200 and insertion slot 12 can also be adaptively adjusted to other corresponding shapes. The top of base assembly 1 is provided with bearing groove 11 for inserting support assembly 2, and bearing groove 11 is provided on one side of insertion slot 12.

[0038] Please refer toFigures 1-3 The support assembly 2 comprises a limiting frame 21 inserted inside the base assembly 1 and a supporting frame 22 capable of being clamped with the clamping frame 3, and the limiting frame 21 and the supporting frame 22 are integrally formed. The limiting frame 21 comprises an insertion plate 211 and an insertion beam 212 vertically installed on the side wall of the insertion plate 211. The shape of the insertion plate 211 is adapted to the shape of the supporting groove 11, and the installation and fixation of the support assembly 2 can be realized by inserting the insertion plate 211 into the supporting groove 11. The insertion beam 212 is arranged at the axis of the insertion beam 212, connecting the limiting frame 21 and the supporting frame 22, and improving the carrying capacity and the connecting strength of the support assembly 2. The supporting frame 22 and the limiting frame 21 form an inverted L-shaped structure, the middle part of the supporting frame 22 is provided as a supporting arc surface 221, and the two ends are provided as extension surfaces 222, and the side wall of the extension surface 222 is provided with a limiting inclined surface 223.

[0039] Please refer to Figures 1-3 and Figures 5-7 The clamping frame 3 is detachably installed on the supporting frame 22, and the clamping frame 3 is integrally formed. The middle part of the clamping frame 3 is provided as an arc-shaped part 31, and the two sides of the clamping frame 3 are provided as extension parts 32, the shape of the arc-shaped part 31 is adapted to the shape of the supporting arc surface 221, and the shape of the extension part 32 is adapted to the shape of the extension surface 222. When the clamping frame 3 is installed on the supporting frame 22, the arc-shaped part 31 is attached to the supporting arc surface 221, and the extension part 32 is attached to the extension surface 222. The bottom of the extension part 32 is provided with a clamping part 33, and the clamping part 33 is formed with a clamping groove 331 inside which the bottom of the supporting frame 22 is attached. When the clamping frame 3 is installed on the supporting frame 22, the clamping groove 331 is clamped with the bottom of the supporting frame 22.

[0040] Please refer to Figures 1-3 and Figures 5-7The guide assemblies 4 are symmetrically arranged relative to the clamping frame 3, and two guide assemblies 4 can support the catheter conveying assembly and the valve stent at the end thereof from both sides of the clamping frame 3 respectively. Each guide assembly 4 comprises a first guide frame 41 and a second guide frame 42 slidingly arranged in the first guide frame 41. The first guide frame 41 and the second guide frame 42 are arranged in a circular arc structure, and each first guide frame 41 is provided with a containing groove 412 away from one side of the clamping frame 3, and the second guide frame 42 is slidingly arranged in the containing groove 412. The containing groove 412 is provided with a limiting groove (not shown in the figure) capable of limiting the second guide frame 42, and the bracket structure 100 can pull out the second guide frame 42 from the containing groove 412 during use, so as to expand the supporting area of the guide assembly 4. After the position of the second guide frame 42 is adjusted, the limiting groove in the containing groove 412 limits the second guide frame 42, so as to prevent the second guide frame 42 from loosening and slipping during use. The top of the first guide frame 41 is provided with a first arc-shaped portion 411, and the top of the second guide frame 42 is provided with a second arc-shaped portion 412. The shapes of the first arc-shaped portion 411 and the second arc-shaped portion 412 are adapted to the shapes of the catheter conveying assembly and the valve stent, so as to provide support for the catheter conveying assembly and the valve stent.

[0041] Please refer to Figures 6-9 The adjusting assembly 5 is arranged at the bottom of the clamping frame 3 and the guide assembly 4, and a plurality of adjusting assemblies 5 can be arranged along the connection between the clamping frame 3 and the guide assembly 4. Each adjusting assembly 5 comprises a first connecting piece 51 connected with the clamping frame 3 and a second connecting piece 52 connected with the guide assembly 4, and the first connecting piece 51 and the second connecting piece 52 are rotationally connected. The angle of the guide assembly 4 can be changed through the first connecting piece 51 and the second connecting piece 52.

[0042] Please refer to Figures 6-9 The first connecting piece 51 is provided with a first connecting plate 511 connected with the bottom of the clamping frame 3, and the first connecting plate 511 and the bottom of the clamping frame 33 are connected by bolts or other connection methods. The first connecting piece 51 is provided with a gear 513 engageable with the second connecting piece 52, and the first connecting piece 51 is provided with a rotating shaft 512 at the end thereof, and the gear 513 is arranged at the end of the rotating shaft 512.

[0043] Please refer to Figures 6-9The second connecting piece 52 is provided with a second connecting plate 521 connected with the bottom of the guide assembly 4, and the second connecting plate 521 is connected with the bottom of the first guide frame 41 through bolt connection or the like. The second connecting piece 52 is internally provided with a plug-in cavity 522, and the first connecting piece 51 is plugged into the plug-in cavity 522. The second connecting piece 52 is internally provided with a matching piece 523, and the inner wall of the matching piece 523 is provided with a matching thread 524 which can be engaged with the gear 513. The matching thread 524 is discontinuously arranged along the inner wall of the matching piece 523. When the rotating shaft 512 is inserted into the plug-in cavity 522, the gear 513 is engaged with the matching thread 524 to rotate. When the matching piece 523 rotates with the gear 513, the rotating shaft 512 and the second connecting piece 52 can be synchronously driven to rotate, so as to realize the mutual rotation between the first connecting piece 51 and the second connecting piece 52.

[0044] Specifically, when the bracket structure 100 is used, the catheter delivery assembly is placed on the clamping frame 3, and when the catheter delivery assembly is docked with the pressing hole of the pressing device 200, the second guide frame 42 is pulled out of the accommodating groove 412 on the first guide frame 41, and the first guide frame 41 and the second guide frame 42 jointly provide support for the catheter delivery assembly and the valve stent from the bottom. The angle of the guide assembly 4 relative to the clamping frame 3 can be adjusted by rotating the second guide frame 42 to drive the second connecting plate 521 to rotate, and by the engagement and rotation of the matching piece 523 and the gear 513, the rotation between the first connecting piece 51 and the second connecting piece 52 is realized, so as to adjust the angle of the guide assembly 4 relative to the clamping frame 3. By adjusting the angle of the guide assembly 4 and increasing the supporting area of the guide assembly 4, the probability of the valve stent being tilted or shaken under stress is reduced, and deformation of the valve stent during pressing is avoided.

[0045] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection or integrated connection, it can be mechanical connection, it can be direct connection or indirect connection through intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0047] The above is according to the ideal embodiment of the present application, through the above description, the relevant staff can fully change and modify without deviating from the scope of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A crimping tool holder structure characterized by: The utility model provides a kind of adjustable support, including base assembly (1), support assembly (2) inserted in base assembly (1) inside, clamping frame (3) clamped on support assembly (2) and guiding assembly (4) is rotatably connected with clamping frame (3) by adjusting assembly (5), the guiding assembly (4) is symmetrically arranged about clamping frame (3), each guiding assembly (4) includes first guide frame (41) and second guide frame (42) slidingly installed in first guide frame (41), each adjusting assembly (5) includes first connecting piece (51) connected with clamping frame (3) and second connecting piece (52) connected with guiding assembly (4), gear (513) is installed on the first connecting piece (51) and can be engaged with second connecting piece (52).

2. A carrier structure for a presser according to claim 1, characterized in that: The first connecting piece (51) is provided with a first connecting plate (511) connected with the bottom of the clamping frame (3) on one side, a rotating shaft (512) is installed on the end of the first connecting piece (51), and the gear (513) is installed on the end of the rotating shaft (512).

3. A carrier structure for a presser according to claim 2, characterized in that: The second connecting piece (52) is provided with a second connecting plate (521) connected with the bottom of the guiding assembly (4) on one side, a plug-in cavity (522) is formed in the second connecting piece (52), and the first connecting piece (51) is plugged into the plug-in cavity (522).

4. A carrier structure for a presser according to claim 3, characterized in that: The second connecting piece (52) is provided with a matching piece (523) inside, and the inner wall of the matching piece (523) is provided with a matching thread (524) that can be engaged with the gear (513).

5. The carrier structure for a press according to claim 1, characterized in that: Each first guide frame (41) is provided with a containing groove (412) on the side away from the clamping frame (3), and the second guide frame (42) is slidingly installed in the containing groove (412).

6. A carrier structure for a presser according to claim 1, characterized in that: The top of the base assembly (1) is provided with an insertion groove (12) for installing a pressure holder (200), and the top of the base assembly (1) is provided with a supporting groove (11) for inserting the support assembly (2).

7. The carrier structure for a press according to claim 1, characterized in that: The support assembly (2) includes a limiting frame (21) plugged into the base assembly (1) and a supporting frame (22) capable of being clamped with the clamping frame (3), the limiting frame (21) includes a plug-in plate (211) and a plug-in beam (212) vertically installed on the side wall of the plug-in plate (211).

8. A carrier structure for a presser according to claim 7, characterized in that: The supporting frame (22) is provided with a supporting arc surface (221) in the middle and two extension surfaces (222) at both ends, and the side wall of the extension surface (222) is provided with a limiting inclined surface (223).

9. A carrier structure for a presser according to claim 8, characterized in that: The clamping frame (3) is detachably installed on the supporting frame (22), the clamping frame (3) is provided with an arc-shaped part (31) in the middle, two extension parts (32) are provided on both sides of the clamping frame (3), the arc-shaped part (31) is matched with the supporting arc surface (221), and the extension part (32) is matched with the extension surface (222).

10. A carrier structure for a presser according to claim 9, characterized in that: The bottom of the extension part (32) is provided with a clamping part (33), and the clamping part (33) forms a clamping groove (331) matched with the bottom of the supporting frame (22) inside.

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