Valve measuring device for circular valve contraction

Abstract

The utility model discloses a valve measuring device for a valve ring contraction operation, which comprises a clamping piece, a traction piece connected with the clamping piece and a central sleeve arranged in the middle of the clamping piece, and sleeve diameter adjusting mechanisms are symmetrically arranged on the outer side of the central sleeve. A positioning adjusting mechanism for oppositely moving the two groups of barrel diameter adjusting mechanisms is arranged in the central sleeve; the positioning adjusting mechanism comprises a central screw rod, the central screw rod is rotationally arranged in the central sleeve, an adjusting nut is arranged on the central screw rod, and a conical block is arranged on the outer surface of the adjusting nut; the cylinder diameter adjusting mechanism comprises a main arc-shaped plate, a cross rod is arranged on the inner wall of the main arc-shaped plate, an arc-shaped wedge block is arranged at one end of the cross rod, and the arc-shaped wedge block abuts against the conical block. According to the device, the range of the diameter measuring cylinder can be automatically positioned and locked, then the valve ring can be positioned, the valve ring is prevented from deviating, and the service life of the valve ring is prolonged. And the diameter range of the diameter measuring cylinder is rapidly adjusted, and the adjusting efficiency of the diameter measuring cylinder range is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a measuring valve device for annuloplasty. BACKGROUND

[0002] In valve forming surgery, the most commonly used forming method is annuloplasty of the valve ring. Taking mitral valve forming as an example, in the case of not using a forming ring, a posterior valve ring annuloplasty method is generally adopted, that is, the posterior valve ring is horizontally mattress sutured by using a sliding line. During the process, the measuring valve device for measuring the size of the valve opening diameter is placed in the valve ring, the measuring valve device is withdrawn after the valve orifice area is determined, and the suture is tightened and knotted according to the predetermined valve orifice area.

[0003] A measuring valve device for annuloplasty in cardiac surgery is disclosed in the utility model with the announcement number CN217723816U, which comprises a caliper cylinder, a pulling piece and a clamping piece. The caliper cylinder comprises a plurality of equal main arc plates and a deformation arc plate. Arc grooves are formed at both ends of the main arc plate. The deformation arc plate and the main arc plate are arranged alternately. The two ends of each deformation arc plate are clamped into the arc grooves of the opposite end faces of two main arc plates. A connecting rod is fixed at the midpoint of the inner part of the main arc plate. The end of the connecting rod is fixed with a connecting arc block. An elastic component is arranged between every two connecting arc blocks. A stop column is inserted into the inner part of the connecting arc block and abuts against the connecting arc block. In use, the diameter of the caliper cylinder is adjusted according to the actual use of the patient, effectively improving the application range of the caliper cylinder. The above-mentioned scheme has the following disadvantages: the range of the caliper cylinder cannot be quickly positioned during adjustment, which may cause the valve ring to deviate, and the adjustment operation procedure for adjusting the diameter of the caliper cylinder is relatively complex, affecting the diameter adjustment efficiency of the caliper cylinder. Therefore, we propose a measuring valve device for annuloplasty. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a measuring valve device for annuloplasty to solve the problems in the prior art that the range of the caliper cylinder cannot be quickly positioned during adjustment, which may cause the valve ring to deviate, and the adjustment operation procedure for adjusting the diameter of the caliper cylinder is relatively complex, affecting the diameter adjustment efficiency of the caliper cylinder.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a measuring valve device for annuloplasty, which comprises a clamping piece, a pulling piece connected with the clamping piece and a center sleeve arranged in the middle part of the clamping piece. A cylinder diameter adjustment mechanism is symmetrically arranged outside the center sleeve. A positioning adjustment mechanism for moving two groups of cylinder diameter adjustment mechanisms in opposite directions is arranged in the center sleeve.

[0006] The positioning adjusting mechanism comprises a center screw, which is rotationally arranged in a center sleeve, an adjusting nut is arranged on the center screw, and a tapered block is arranged on the outer surface of the adjusting nut;

[0007] The barrel diameter adjusting mechanism comprises a main arc-shaped plate, a cross bar is arranged on the inner wall of the main arc-shaped plate, an arc-shaped wedge block is arranged at one end of the cross bar, and the arc-shaped wedge block is in abutment with the tapered block.

[0008] The main arc-shaped plate and the two groups of arc-shaped wedge blocks form a complete cylindrical structure.

[0009] Preferably, a guide sliding block is arranged at the top of the tapered block, one end of the guide sliding block is slidingly arranged in a guide sliding groove, and the guide sliding groove is arranged on the inner wall of the center sleeve, so that the movement of the tapered block can be guided.

[0010] Preferably, the cross bar is movably arranged in a mounting hole, and the mounting hole is arranged on the side surface of the center sleeve, so that the cross bar can move conveniently.

[0011] Preferably, a limiting sliding block is further arranged on the cross bar, one end of the limiting sliding block is slidingly arranged in a limiting sliding groove, and the limiting sliding groove is arranged in the mounting hole, so that the movement position of the cross bar can be limited.

[0012] Preferably, a reset spring is arranged on one side surface in the limiting sliding groove, one end of the reset spring is connected with the limiting sliding block, and through the elastic force of the reset spring, the cross bar can be reset and moved.

[0013] Preferably, an arc-shaped guide groove is arranged in the main arc-shaped plate, and the arc-shaped wedge block is movably arranged in the arc-shaped guide groove, so that the arc-shaped wedge block can move in the arc-shaped guide groove.

[0014] Preferably, a first sliding block is arranged at the bottom of the main arc-shaped plate, one end of the first sliding block is slidingly arranged in a first sliding groove, and the first sliding groove is arranged on the clamping piece, so that the main arc-shaped plate can be guided and moved.

[0015] Preferably, a second sliding block is arranged at the bottom of the arc-shaped wedge block, one end of the second sliding block is slidingly arranged in a second sliding groove, and the second sliding groove is arranged on the clamping piece, so that the arc-shaped wedge block can be guided and moved.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] (1) When the diameter range of the diameter measuring barrel is adjusted, the diameter range of the diameter measuring barrel can be automatically positioned and locked, so that the annulus can be positioned, the annulus deviation is prevented, and the subsequent suture accuracy of the valve orifice is improved.

[0018] (2) The utility model discloses a pair of cylinder diameter adjusting mechanisms are synchronously moved oppositely, and then the diameter range of the diameter measuring cylinder is quickly adjusted, and the adjusting efficiency of the diameter measuring cylinder range is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the half cut structure schematic diagram of the utility model;

[0021] Figure 3 It is the half cut local structure schematic diagram of the positioning adjusting mechanism in the utility model;

[0022] Figure 4 It is Figure 2 The enlarged structure schematic diagram of A in the utility model;

[0023] Figure 5 It is the overhead section structure schematic diagram of the utility model;

[0024] In the drawing: 1, cylinder diameter adjusting mechanism;2, center sleeve;3, pulling piece;4, secondary arc plate;5, clamping piece;6, second sliding groove;11, main arc plate;12, arc guide groove;13, cross bar;14, first sliding groove;15, first sliding block;16, arc wedge;17, mounting hole;18, limit sliding block;19, limit sliding groove;20, return spring;21, center screw;22, conical block;23, guide sliding block;24, guide sliding groove;25, adjusting nut. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a measuring valve device for annuloplasty, including clamping piece 5, with the pulling piece 3 of clamping piece 5 connection and the center sleeve 2 of setting in the middle part of clamping piece 5, center sleeve 2 outside symmetry is provided with cylinder diameter adjusting mechanism 1, center sleeve 2 is provided with positioning adjusting mechanism in;

[0027] The positioning adjusting mechanism comprises a center screw 21 which is rotationally arranged in the center sleeve 2, and specifically, the center screw 21 is further provided with an adjusting hand wheel at one end, the rotating direction of the center screw 21 is controlled through the adjusting hand wheel, the adjusting screw nut 25 is arranged on the center screw 21, the tapered block 22 is arranged on the outer surface of the adjusting screw nut 25, and the longitudinal position of the tapered block 22 can be adjusted through the longitudinal movement of the adjusting screw nut 25;

[0028] The barrel diameter adjusting mechanism 1 comprises a main arc-shaped plate 11, the inner wall of the main arc-shaped plate 11 is provided with a cross bar 13, one end of the cross bar 13 is provided with an arc-shaped wedge block 16, the arc-shaped wedge block 16 is in abutment with the tapered block 22, and the arc-shaped wedge block 16 can be moved transversely through the movement of the tapered block 22;

[0029] The inner wall of the main arc-shaped plate 11 is movably provided with a secondary arc-shaped plate 4, and the two groups of secondary arc-shaped plates 4 and the two groups of main arc-shaped plates 11 form a complete cylindrical structure, and the main arc-shaped plate 11 and the secondary arc-shaped plate 4 form a complete measuring barrel.

[0030] In one embodiment, the top of the tapered block 22 is provided with a guide sliding block 23, one end of the guide sliding block 23 is slidably arranged in a guide sliding groove 24, the guide sliding groove 24 is arranged on the inner wall of the center sleeve 2, the guide sliding block 23 moves in the guide sliding groove 24 through the movement of the tapered block 22, and the movement of the tapered block 22 is guided.

[0031] In one embodiment, the cross bar 13 is movably arranged in a mounting hole 17, the mounting hole 17 is arranged on the side surface of the center sleeve 2, the movement of the cross bar 13 is facilitated, the cross bar 13 is further provided with a limiting sliding block 18, one end of the limiting sliding block 18 is slidably arranged in a limiting sliding groove 19, the limiting sliding groove 19 is arranged in the mounting hole 17, the limiting sliding block 18 moves in the limiting sliding groove 19 through the movement of the cross bar 13, and the movement position of the cross bar 13 can be limited.

[0032] In one embodiment, a reset spring 20 is arranged on one side surface in the limiting sliding groove 19, one end of the reset spring 20 is connected with the limiting sliding block 18, the limiting sliding block 18 moves to compress the reset spring 20, and the cross bar 13 can be reset and moved through the elastic force of the reset spring 20.

[0033] In one embodiment, an arc-shaped guide groove 12 is arranged in the main arc-shaped plate 11, and the secondary arc-shaped plate 4 is movably arranged in the arc-shaped guide groove 12, when the two groups of main arc-shaped plates 11 move, the secondary arc-shaped plate 4 can be moved in the arc-shaped guide groove 12 at the same time, and the movement of the secondary arc-shaped plate 4 in the arc-shaped guide groove 12 is facilitated.

[0034] In one embodiment, the first slider 15 is arranged at the bottom of the main arc-shaped plate 11, one end of the first slider 15 is slidably arranged in the first sliding groove 14 arranged on the clamping piece 5, and the main arc-shaped plate 11 moves to drive the first slider 15 to move in the first sliding groove 14, and the main arc-shaped plate 11 is guided to move.

[0035] In one embodiment, the second slider is arranged at the bottom of the auxiliary arc-shaped plate 4, one end of the second slider is slidably arranged in the second sliding groove 6 arranged on the clamping piece 5, and when the auxiliary arc-shaped plate 4 moves, the auxiliary arc-shaped plate 4 drives the second slider (not labeled) to move in the second sliding groove 6, and the auxiliary arc-shaped plate 4 is guided to move.

[0036] The working principle and use process of the utility model are as follows:

[0037] When the range of the measuring cylinder is adjusted, the central screw 21 is rotated, the central screw 21 drives the adjusting nut 25 to move, the adjusting nut 25 drives the conical block 22 to move, the conical block 22 drives the two groups of arc-shaped wedge blocks 16 to move horizontally, the arc-shaped wedge blocks 16 drive the horizontal rods 13 to move horizontally, the horizontal rods 13 drive the two groups of main arc-shaped plates 11 to move oppositely, when the two groups of main arc-shaped plates 11 move, the two groups of auxiliary arc-shaped plates 4 move in the arc-shaped guide grooves 12, and the auxiliary arc-shaped plates 4 always keep the same operation arc as the main arc-shaped plates 11, when the main arc-shaped plates 11 are attached to the annulus, the central screw 21 is stopped, and then the position of the adjusting nut 25 is automatically locked, the position of the conical block 22 is locked, and then the position of the arc-shaped wedge block 16 is locked, finally the positions of the main arc-shaped plates 11 and the auxiliary arc-shaped plates 4 are positioned, the range of the diameter measuring cylinder can be automatically positioned and locked, and then the annulus can be positioned, the situation that the annulus deviates is prevented, the accuracy of subsequent valve orifice suturing is improved, the two groups of main arc-shaped plates 11 are synchronously moved oppositely, and then the diameter range of the diameter measuring cylinder is quickly adjusted.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A valve annuloplasty measuring device comprising a clamping member (5), a pulling member (3) connected to the clamping member (5), and a central sleeve (2) arranged in the middle of the clamping member (5), characterized in that: The center sleeve (2) is symmetrically provided with a barrel diameter adjusting mechanism (1) outside, and a positioning adjusting mechanism for moving the two groups of barrel diameter adjusting mechanisms (1) in opposite directions is arranged inside the center sleeve (2); The positioning adjusting mechanism comprises a center screw (21) which is rotationally arranged in the center sleeve (2), and an adjusting nut (25) is arranged on the center screw (21), and a tapered block (22) is arranged on the outer surface of the adjusting nut (25); The barrel diameter adjusting mechanism (1) comprises a main arc-shaped plate (11), a cross rod (13) is arranged on the inner wall of the main arc-shaped plate (11), an arc-shaped wedge block (16) is arranged at one end of the cross rod (13), and the arc-shaped wedge block (16) is in abutment with the tapered block (22); Wherein, a secondary arc-shaped plate (4) is movably arranged in the main arc-shaped plate (11), and two groups of secondary arc-shaped plates (4) and two groups of main arc-shaped plates (11) form a complete cylindrical structure.

2. The annuloplasty measuring device of claim 1, wherein: A guide sliding block (23) is arranged at the top of the tapered block (22), one end of the guide sliding block (23) is slidingly arranged in a guide sliding groove (24), and the guide sliding groove (24) is arranged on the inner wall of the center sleeve (2).

3. The annuloplasty measuring device of claim 1, wherein: The cross rod (13) is movably arranged in a mounting hole (17), and the mounting hole (17) is arranged on the side surface of the center sleeve (2).

4. The annuloplasty measuring device of claim 3, wherein: A limiting sliding block (18) is further arranged on the cross rod (13), one end of the limiting sliding block (18) is slidingly arranged in a limiting sliding groove (19), and the limiting sliding groove (19) is arranged in the mounting hole (17).

5. The annuloplasty measuring device of claim 4, wherein: A reset spring (20) is arranged on one side surface in the limiting sliding groove (19), and one end of the reset spring (20) is connected with the limiting sliding block (18).

6. The annuloplasty measurement leaflet device of claim 1, wherein: An arc-shaped guide groove (12) is arranged in the main arc-shaped plate (11), and the secondary arc-shaped plate (4) is movably arranged in the arc-shaped guide groove (12).

7. The annuloplasty measurement leaflet device of claim 1 or 6, wherein: A first sliding block (15) is arranged at the bottom of the main arc-shaped plate (11), one end of the first sliding block (15) is slidingly arranged in a first sliding groove (14), and the first sliding groove (14) is arranged on a clamping piece (5).

8. The annuloplasty measurement leaflet device of claim 1 or 6, wherein: A second sliding block is arranged at the bottom of the secondary arc-shaped plate (4), one end of the second sliding block is slidingly arranged in a second sliding groove (6), and the second sliding groove (6) is arranged on the clamping piece (5).

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