Fixing device for membrane oxygenator

Abstract

The utility model belongs to the technical field of fixing mechanisms, particularly relates to a fixing device for a membrane type oxygenator, and provides the following scheme aiming at the problems that the existing fixing device is difficult to fix, a tube is separated, the membrane type oxygenator is easy to fall off, and the membrane type oxygenator needs to be fixed by two persons and is inconvenient to use, the fixing device comprises a connecting rod; a limiting ring is arranged at the side end of the connecting rod, the supporting ring is arranged in the limiting ring and used for supporting the membrane type oxygenator to be fixed, a set of connecting assemblies are arranged between the limiting ring and the supporting ring, and the connecting assemblies are used for disassembling the supporting ring; a fixing block is arranged at the side end of the connecting rod, and the clamping and positioning assembly is arranged in the fixing block and used for clamping and positioning the membrane oxygenator; the membrane type oxygenator fixing device can effectively and quickly fix a membrane type oxygenator, is convenient for a single person to operate, can replace a new supporting ring through a connecting assembly, can adapt to supporting of membrane type oxygenators with different sizes, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing mechanisms, in particular to a fixing device for a membrane oxygenator. Background Art

[0002] Membrane oxygenator, also known as membrane artificial lung, is a disposable artificial device that can perform blood-gas exchange. Based on the principle of alveolar gas exchange, it integrates oxygenation, temperature change, blood storage and filtration functions, and is used to replace the lung function to oxygenate blood and remove carbon dioxide to meet the needs of patients during surgery. Its characteristics are that there is no direct contact between gas and blood, and it has good bionics.

[0003] In the prior art, membrane oxygenators are currently mostly fixed with white flat cloth tape, but this fixing method is not conducive to the observation of thrombus in the membrane oxygenator. During the specific use of the membrane oxygenator, it is necessary to read the scale on the transparent shell of the oxygenator to determine the index, and there are problems such as difficulty in fixing, tube detachment, and easy detachment of the membrane oxygenator. When fixing, two people are required to cooperate for fixing, which is inconvenient to use. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art, such as difficulty in fixing, tube detachment, easy detachment of the membrane oxygenator, and the inconvenience of using, by requiring two persons to cooperate in fixing. A fixing device for a membrane oxygenator is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fixing device for a membrane oxygenator, comprising a connecting rod;

[0007] A support ring, a limiting ring is provided at the side end of the connecting rod, the supporting ring is arranged in the limiting ring for supporting the membrane oxygenator to be fixed, a group of connecting components is provided between the limiting ring and the supporting ring, and the connecting components are used to disassemble the supporting ring;

[0008] A clamping and positioning assembly, wherein a fixing block is provided at the side end of the connecting rod, and the clamping and positioning assembly is arranged in the fixing block for clamping and positioning the membrane oxygenator;

[0009] An adjusting component, which is arranged in the connecting rod and is used to adjust the position between the limiting ring and the fixing block;

[0010] A fixing assembly is arranged at the other end of the connecting rod and is used to fix the connecting rod on the bracket.

[0011] In a possible design, the connection assembly includes a threaded groove opened at the bottom end of the limiting ring, a connecting ring is threadedly connected in the threaded groove, and a supporting ring is fixed in the connecting ring.

[0012] In a possible design, a twist ring is fixed on the surface of the connecting ring.

[0013] In a possible design, the clamping and positioning assembly includes a second groove opened in the fixed block, two rotating shafts rotate in the second groove, worm wheels and arc-shaped clamping plates are fixed on the surfaces of the two rotating shafts, and the two arc-shaped clamping plates are used to clamp and position the membrane oxygenator, a bidirectional worm rotates in the second groove, the positive and negative thread segments on the circumferential surface of the bidirectional worm are respectively engaged with the two worm wheels, the bidirectional worm moves outward to penetrate the side end of the fixed block, and a handle is fixed on the side end of the bidirectional worm.

[0014] In a possible design, the arc-shaped inner walls of the two arc-shaped clamping plates are both provided with anti-slip grooves.

[0015] In a possible design, the adjustment assembly includes a first groove opened in the connecting rod, the fixed block and the limit ring both slide in the first groove, a bidirectional screw rod rotates in the first groove, and the fixed block and the limit ring are respectively threadedly connected to the positive and negative thread segments on the circumferential surface of the bidirectional screw rod.

[0016] In a possible design, a limiting block for limiting the fixing block and the limiting ring is fixed in the first groove, and the limiting block is sleeved on the surface of the bidirectional screw rod.

[0017] In a possible design, the fixing assembly includes an inverted U-frame fixed to the side end of the connecting rod, a clamping plate slides inside the inverted U-frame, a bolt is threadedly connected to the inner surface of the inverted U-frame, and the bolt rotates on the side end of the clamping plate.

[0018] In the present application, the bracket is placed between the clamping plate and the inverted U-frame, and the clamping plate is driven to move by screwing the bolts. The clamping plate moves and clamps and is fixed on the surface of the bracket. The membrane oxygenator is placed on the support ring, and the hollow part of the support ring can be conveniently connected to the pipeline of the membrane oxygenator, so that the bidirectional screw is driven to rotate and drive the fixing block and the limit ring to move in the direction of approaching each other, and the actual clamping height of the arc clamping plate is adjusted to adapt to membrane oxygenators of different heights. The initial state of the arc clamping plate is the open state. After the position is adjusted, the handle is directly screwed to drive the bidirectional worm to rotate. The rotation of the bidirectional worm drives the two worm wheels to rotate in the direction of approaching each other. The two worm wheels drive the two rotating shafts to rotate in the direction of approaching each other, and the two rotating shafts drive the two arc clamping plates to move in the direction of approaching each other, so that the arc clamping plate clamps the surface of the membrane oxygenator, and the membrane oxygenator can be fixed.

[0019] In the utility model, the fixing device for the membrane oxygenator can achieve the effect of clamping and limiting the membrane oxygenator by clamping the positioning component;

[0020] In the utility model, the fixing device for the membrane oxygenator can achieve the effect of facilitating the replacement of the support ring and better supporting the membrane oxygenator through the connection assembly;

[0021] In the utility model, the membrane oxygenator can be temporarily placed by the support of the support ring in the technical solution, and then the membrane oxygenator can be clamped and limited by the clamping and positioning component, so that the membrane oxygenator can be effectively and quickly fixed, and it is convenient for a single person to operate. A new support ring can be replaced by a connecting component, so that it can be adapted to the support of membrane oxygenators of different sizes, which is convenient for use. The distance between the clamping and positioning component and the support ring can also be adjusted by the adjusting component, so that it can be adapted to membrane oxygenators of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front perspective view of a fixing device for a membrane oxygenator proposed by the utility model;

[0023] Figure 2 This is a partial stereoscopic diagram of a fixing device for a membrane oxygenator proposed by the utility model;

[0024] Figure 3 This is a first partial cross-sectional view of a fixing device for a membrane oxygenator proposed by the utility model;

[0025] Figure 4 This is a second partial cross-sectional view of a fixing device for a membrane oxygenator proposed by the utility model.

[0026] In the figure: 1. connecting rod; 2. inverted U frame; 3. clamping plate; 4. bolt; 5. first groove; 6. bidirectional screw; 7. fixing block; 8. arc clamping plate; 9. rotating shaft; 10. limit block; 11. limit ring; 12. supporting ring; 13. twisting ring; 14. threaded groove; 15. connecting ring; 16. second groove; 17. worm gear; 18. bidirectional worm; 19. twisting handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1

[0029] Reference Figure 1-Figure 4 , a fixing device, comprising a connecting rod 1;

[0030] A support ring 12, a limiting ring 11 is provided at the side end of the connecting rod 1, and the support ring 12 is arranged in the limiting ring 11 for supporting the membrane oxygenator to be fixed. A set of connecting components is provided between the limiting ring 11 and the support ring 12, and the connecting components are used to disassemble the support ring 12; the connecting component includes a thread groove 14 provided at the bottom end of the limiting ring 11, a connecting ring 15 is threadedly connected in the thread groove 14, and the support ring 12 is fixed in the connecting ring 15; a new support ring 12 is replaced by the connecting component, so that it can be adapted to the support of membrane oxygenators of different sizes, which is convenient for use;

[0031] A twist ring 13 is fixed on the surface of the connecting ring 15;

[0032] A fixing device for a membrane oxygenator further includes a clamping and positioning assembly, a fixing block 7 is provided at the side end of a connecting rod 1, and the clamping and positioning assembly is arranged in the fixing block 7 for clamping and positioning the membrane oxygenator; the clamping and positioning assembly includes a second groove 16 provided in the fixing block 7, two rotating shafts 9 are rotated in the second groove 16, worm gears 17 and arc-shaped clamping plates 8 are fixed on the surfaces of the two rotating shafts 9, and the two arc-shaped clamping plates 8 are used for clamping and positioning the membrane oxygenator, a bidirectional worm 18 is rotated in the second groove 16, and the positive and negative thread sections on the circumferential surface of the bidirectional worm 18 are respectively meshed with the two worm gears 17, the bidirectional worm 18 moves outward to penetrate the side end of the fixing block 7, and a screw handle 19 is fixed on the side end of the bidirectional worm 18;

[0033] The arc-shaped inner walls of the two arc-shaped clamping plates 8 are both provided with anti-slip grooves; the handle 19 is directly turned to drive the bidirectional worm 18 to rotate, and the rotation of the bidirectional worm 18 drives the two worm wheels 17 to rotate in the direction of approaching each other, and the two worm wheels 17 drive the two rotating shafts 9 to rotate in the direction of approaching each other, and the two rotating shafts 9 drive the two arc-shaped clamping plates 8 to move in the direction of approaching each other, so that the arc-shaped clamping plates 8 clamp the surface of the membrane oxygenator, and can fix the membrane oxygenator.

[0034] A fixing device for a membrane oxygenator also includes a fixing assembly, which is arranged at the other end of a connecting rod 1 and is used to fix the connecting rod 1 on a bracket; the fixing assembly includes an inverted U-frame 2 fixed to the side end of the connecting rod 1, a clamping plate 3 is slid in the inverted U-frame 2, a bolt 4 is threadedly connected to the inverted U-frame 2, and the bolt 4 is rotated on the side end of the clamping plate 3; by placing the bracket between the clamping plate 3 and the inverted U-frame 2, the clamping plate 3 is driven to move by screwing the bolt 4, and the clamping plate 3 moves and is clamped and fixed on the surface of the bracket.

[0035] The fixing device also includes an adjusting component, which is arranged in the connecting rod 1 and is used to adjust the position between the limiting ring 11 and the fixing block 7; the adjusting component includes a first groove 5 provided in the connecting rod 1, the fixing block 7 and the limiting ring 11 both slide in the first groove 5, a bidirectional screw rod 6 rotates in the first groove 5, and the fixing block 7 and the limiting ring 11 are respectively threadedly connected to the positive and negative thread segments on the circumferential surface of the bidirectional screw rod 6; the bidirectional screw rod 6 is driven to rotate, and the fixing block 7 and the limiting ring 11 are driven to move in a direction close to each other, so as to adjust the actual clamping height of the arc clamping plate 8 and adapt to membrane oxygenators of different heights;

[0036] The present application can be used for fixing a membrane oxygenator, and can also be used in other fields applicable to the present application.

[0037] Example 2

[0038] refer to Figure 1-Figure 4 , improved on the basis of Example 1: a fixing device for a membrane oxygenator, which is used in the field of medical device technology,

[0039] A limiting block 10 for limiting the fixing block 7 and the limiting ring 11 is fixed in the first groove 5 , and the limiting block 10 is sleeved on the surface of the bidirectional screw rod 6 .

[0040] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A fixing device for a membrane oxygenator, characterized in that: include: Connecting rod (1); A support ring (12), wherein a limiting ring (11) is provided at a side end of the connecting rod (1), and the support ring (12) is arranged inside the limiting ring (11) and is used to support the membrane oxygenator to be fixed, and a group of connecting components is provided between the limiting ring (11) and the support ring (12), and the connecting components are used to disassemble the support ring (12); A clamping and positioning component, wherein a fixing block (7) is provided at a side end of the connecting rod (1), and the clamping and positioning component is arranged in the fixing block (7) and is used for clamping and positioning the membrane oxygenator; An adjustment component, the adjustment component is arranged in the connecting rod (1) and is used to adjust the position between the limiting ring (11) and the fixing block (7); A fixing component is arranged at the other end of the connecting rod (1) and is used to fix the connecting rod (1) on the bracket.

2. A fixing device for a membrane oxygenator according to claim 1, characterized in that: The connection assembly comprises a thread groove (14) formed at the bottom end of a limiting ring (11), a connection ring (15) is threadedly connected to the thread groove (14), and a support ring (12) is fixed inside the connection ring (15).

3. A fixing device for a membrane oxygenator according to claim 2, characterized in that: A twist ring (13) is fixed on the surface of the connecting ring (15).

4. A fixing device for a membrane oxygenator according to any one of claims 1 to 3, characterized in that: The clamping and positioning assembly comprises a second groove (16) provided in the fixed block (7), two rotating shafts (9) are rotated in the second groove (16), worm wheels (17) and arc-shaped clamping plates (8) are fixed on the surfaces of the two rotating shafts (9), and the two arc-shaped clamping plates (8) are used to clamp and position the membrane oxygenator, a bidirectional worm (18) is rotated in the second groove (16), positive and negative thread sections on the circumferential surface of the bidirectional worm (18) are respectively meshed with the two worm wheels (17), the bidirectional worm (18) moves outwardly and penetrates the side end of the fixed block (7), and a screw handle (19) is fixed on the side end of the bidirectional worm (18).

5. A fixing device for a membrane oxygenator according to claim 4, characterized in that: The arc-shaped inner walls of the two arc-shaped clamping plates (8) are both provided with anti-slip grooves.

6. A fixing device for a membrane oxygenator according to claim 4, characterized in that: The adjustment assembly comprises a first groove (5) formed in the connecting rod (1), the fixing block (7) and the limiting ring (11) both slide in the first groove (5), a bidirectional screw rod (6) rotates in the first groove (5), and the fixing block (7) and the limiting ring (11) are respectively threadedly connected to the positive and negative thread segments on the circumferential surface of the bidirectional screw rod (6).

7. A fixing device for a membrane oxygenator according to claim 6, characterized in that: A limiting block (10) for limiting the position of the fixing block (7) and the limiting ring (11) is fixed in the first groove (5); the limiting block (10) is sleeved on the surface of the bidirectional screw rod (6).

8. A fixing device for a membrane oxygenator according to claim 1, characterized in that: The fixing assembly comprises an inverted U-frame (2) fixed to the side end of the connecting rod (1), a clamping plate (3) sliding inside the inverted U-frame (2), a bolt (4) connected to the inner thread of the inverted U-frame (2), and the bolt (4) rotating on the side end of the clamping plate (3).

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