Balloon diameter measuring device

Abstract

The utility model relates to a balloon diameter measuring device which comprises a base, a first clamping mechanism, a second clamping mechanism, a laser measuring instrument, a first sliding rail, a three-axis positioning mechanism and a balloon supporting mechanism. The three-axis positioning mechanism comprises a positioning supporting base arranged on the first sliding rail in a sliding mode, a three-axis positioning platform installed on the positioning supporting base and a three-axis positioning locking piece. The laser measuring instrument is installed on the three-axis positioning platform. The balloon supporting mechanism comprises a balloon supporting base installed on the laser measuring instrument, a second sliding rail, a supporting column arranged on the second sliding rail in a sliding mode and stop blocks arranged at the two ends of the second sliding rail respectively, and a groove capable of containing a balloon is formed in the top end of the supporting column. The balloon supporting mechanism is arranged on the laser measuring instrument to support the balloon, so that the balloon can be kept horizontal, and measurement is facilitated; the three-axis positioning mechanism is arranged between the laser measuring instrument and the base, and the laser measuring instrument is allowed to move on the X axis, the Y axis and the Z axis, so that the device can adapt to balloons of different specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a balloon diameter measuring device. Background Art

[0002] In the field of medical device manufacturing, the diameter of a balloon catheter is one of its key parameters. The traditional measurement method using a water pressure tester usually has problems such as insufficient accuracy and complex operation. Especially for products with a variable diameter like a conical balloon, it is difficult to meet the high-quality requirements of modern medical devices. Therefore, it is of great significance to design a device that can accurately measure the diameter of a balloon.

[0003] Patent CN 219977344 U discloses a balloon multi-section automatic diameter measuring instrument, which includes a base, a laser measuring instrument, and an inflation cylinder. An inflation cylinder support is vertically arranged on the base, the inflation cylinder is horizontally arranged on the inflation cylinder support, a guide rail is horizontally arranged on the base, a stretching device is vertically and slidably arranged on the guide rail, and the laser measuring instrument is slidably arranged on the guide rail between the inflation cylinder and the stretching device. The laser measuring instrument is driven by a motor to move on the guide rail to achieve precise positioning, and the diameter of the balloon at a specified position can be measured. However, this automatic diameter measuring instrument only fixes the two ends of the balloon catheter through the inflation cylinders and stretching cylinders on both sides of the base. Since the balloon catheter is mostly flexible, the balloon catheter between the inflation cylinder and the stretching cylinder has a tendency to bend downward under the action of gravity, and it is difficult for the balloon to remain horizontal, which will cause errors in the measurement of the balloon diameter. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a balloon diameter measuring device with good operability and high accuracy.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A balloon diameter measuring device, including a base, a first clamping mechanism and a second clamping mechanism respectively arranged on both sides of the base along the length direction of the base, a laser measuring instrument arranged between the first clamping mechanism and the second clamping mechanism, and a first slide rail arranged on the base and extending along the length direction of the base. The second clamping mechanism is slidably connected to the first slide rail through a first slider. The balloon diameter measuring device further includes:

[0007] A three-axis positioning mechanism, which includes a positioning support seat slidably arranged on the first slide rail through a second slider, a three-axis positioning platform installed on the positioning support seat, and a three-axis positioning locking member for locking the relative position of the positioning support seat and the first slide rail. The laser measuring instrument is installed on the three-axis positioning platform;

[0008] The balloon support mechanism includes a balloon support seat installed on the laser measuring instrument, a second slide rail provided on the balloon support seat and in the same extending direction as the first slide rail, a support column provided on the second slide rail and slidable along the extending direction of the second slide rail, and stop blocks respectively provided at both ends of the second slide rail. A groove for accommodating a balloon is formed at the top end of the support column.

[0009] Preferably, there are two support columns.

[0010] Preferably, the groove is a V-shaped groove.

[0011] Preferably, the three-axis positioning locking member includes a screw threadedly connected to the second slider. When the three-axis positioning locking member is in the locked state, one end of the screw passes through the second slider and abuts against the first slide rail to prevent the three-axis positioning mechanism from moving; when the three-axis positioning locking member is in the unlocked state, the screw is not in contact with the first slide rail to allow the three-axis positioning mechanism to move. By rotating the screw, the three-axis positioning locking member can be switched between the locked state and the unlocked state.

[0012] Preferably, the first clamping mechanism includes a first clamping mechanism support seat and a balloon manufacturing process detector provided on the first clamping mechanism support seat. The balloon manufacturing process detector has an inflation station for inflating a balloon catheter, and a pneumatic tube interface with a locking ring is provided on the inflation station.

[0013] More preferably, the balloon manufacturing process detector is the balloon manufacturing process detector 801 of BW-TEC Corporation.

[0014] Preferably, the second clamping mechanism includes a second clamping mechanism support seat, a cylinder installed on the second clamping mechanism support seat, and a pressing head provided on the piston rod of the cylinder. The pressing head can press the end of the balloon catheter under the action of the piston rod to block it.

[0015] Preferably, the balloon diameter measuring device further includes a clamping mechanism locking member for locking the relative position between the second clamping mechanism and the first slide rail.

[0016] More preferably, the clamping mechanism locking member includes a screw threadedly connected to the first slider. When the clamping mechanism locking member is in the locked state, one end of the screw passes through the first slider and abuts against the first slide rail to prevent the second clamping mechanism from moving; when the clamping mechanism locking member is in the unlocked state, the screw is not in contact with the first slide rail to allow the second clamping mechanism to move. By rotating the screw, the clamping mechanism locking member can be switched between the locked state and the unlocked state.

[0017] Preferably, the balloon diameter measuring device further comprises a buffer strip, which is installed on one side of the positioning support seat facing the second clamping mechanism and on one side of the second clamping mechanism facing the positioning support seat.

[0018] Preferably, the base has a plurality of hollow grooves.

[0019] Preferably, the balloon diameter measuring device further comprises a handheld part, which has two groups selectively installed on the outside of the first clamping mechanism and the base.

[0020] Due to the application of the above technical solution, the present utility model has the following advantages compared with the prior art:

[0021] By providing a balloon support mechanism on the laser measuring instrument, the present utility model provides support for the balloon, so that the balloon is kept horizontal, facilitating measurement; by providing a three-axis positioning mechanism between the laser measuring instrument and the base, the laser measuring instrument is allowed to move on the X, Y, and Z axes, and can adapt to balloons of different specifications. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of the balloon diameter measuring device in Embodiment 1;

[0024] Figure 2 It is a schematic structural diagram of the balloon diameter measuring device in another angle in Embodiment 1;

[0025] Figure 3 It is an exploded view of the structure of the balloon diameter measuring device in Embodiment 1;

[0026] Figure 4 It is a schematic structural diagram of the base in Embodiment 1;

[0027] Figure 5 It is a schematic structural diagram of the balloon support mechanism in Embodiment 1;

[0028] Wherein: 1. Base; 11. First slide rail 11; 12. Limit block; 13. Handheld part; 14. Hollow groove; 15. First slider; 16. Second slider;

[0029] 2. The first clamping mechanism; 21. The support base of the first clamping mechanism; 22. The balloon manufacturing detector; 221. The pneumatic pipe interface; 23. The first pneumatic valve;

[0030] 3. The second clamping mechanism; 31. The support base of the second clamping mechanism; 32. The clamping platform; 33. The cylinder; 34. The second pneumatic valve; 35. The locking member of the clamping mechanism;

[0031] 4. The laser measuring instrument;

[0032] 5. The balloon support mechanism; 51. The balloon support base; 52. The second slide rail; 53. The support column 5531. The V-shaped groove; 54. The stop block;

[0033] 6. The three-axis positioning mechanism; 61. The positioning support base; 62. The three-axis positioning platform; 63. The three-axis positioning locking member; 64. The bearing plate;

[0034] 7. The buffer strip;

[0035] 8. The balloon catheter. Specific embodiments

[0036] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0037] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "left", "right", etc. is defined based on Figure 1 the orientation shown. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0039] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0040] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present utility model. To simplify the disclosure of the embodiments of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0041] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0042] Embodiment 1

[0043] A balloon diameter measuring device, as Figures 1 to 5 shown, includes a base 1, a first clamping mechanism 2, a second clamping mechanism 3, a first slide rail 11, a laser measuring instrument 4, a three-axis positioning mechanism 6 and a balloon support mechanism 5. Among them, the first clamping mechanism 2 and the second clamping mechanism 3 are respectively arranged on the left and right sides of the base 1. The first slide rail 11 is fixedly installed on the base 1 and extends along the length direction of the base 1 (i.e., the left and right direction). There are two groups of the first slide rail 11 symmetrically arranged on the front and rear sides of the base 1. A first slider 15 and a second slider 16 are slidably installed on the first slide rail 11. The second clamping mechanism 3 is slidably connected to the first slide rail 11 through the first slider 15. The laser measuring instrument 4 is located between the first clamping mechanism 2 and the second clamping mechanism 3 and is installed on the three-axis positioning mechanism 6. Specifically, it can be connected to the three-axis positioning mechanism 6 through a carrier plate 64. The three-axis positioning mechanism 6 is slidably connected to the first slide rail 11 through the second slider 16. The balloon support mechanism 5 is installed on the laser measuring instrument 4.

[0044] Specifically, the balloon support mechanism 5 includes a balloon support base 51 mounted on the laser measuring instrument 4, a second slide rail 52 fixedly connected to the balloon support base 51 and in the same extension direction as the first slide rail 11, a support column 53 disposed on the second slide rail 52 and slidable along the extension direction of the second slide rail 52, and stop blocks 54 disposed at both ends of the second slide rail 52. Optionally, one or more support columns 53 are provided. In this embodiment, there are two support columns 53, and a V-shaped groove 531 for accommodating the balloon is formed at the top end of the support column 53. The balloon can be placed in the V-shaped groove to provide support for the balloon and prevent the balloon catheter 8 from bending downward under the action of gravity, which may affect the measurement of the laser measuring instrument 4. The material of the support column 53 is preferably plastic, and the edges are polished to a rounded corner. The material of the balloon support base 51 is preferably aluminum.

[0045] The three-axis positioning mechanism 6 includes a positioning support base 61 slidably disposed on the first slide rail 11 through a second slider 16, a three-axis positioning platform 62 mounted on the positioning support base 61, and a three-axis positioning locking member 63 for locking the relative position of the positioning support base 61 and the first slide rail 11. The laser measuring instrument 4 can be moved in the X-axis, Y-axis, and Z-axis directions through the three-axis positioning platform 62 to adapt to balloons of different specifications. The three-axis positioning locking member 63 includes a screw threadedly connected to the second slider 16. When the three-axis positioning locking member 63 is in the locked state, one end of the screw passes through the second slider 16 and abuts against the first slide rail 11 to prevent the positioning support base 61 from moving; when the three-axis positioning locking member 63 is in the unlocked state, the screw does not contact the first slide rail 11 to allow the positioning support base 61 to move. By rotating the screw, the three-axis positioning locking member 63 can be switched between the locked state and the unlocked state. For the convenience of operating the screw, an operating portion is further provided on the exposed section of the screw.

[0046] The first clamping mechanism 2 includes a first clamping mechanism support base 21 fixedly mounted on the base 1, a balloon manufacturing process detector 22 disposed on the first clamping mechanism support base 21, and a first pneumatic valve 23 disposed on the air inlet pipe of the balloon manufacturing process detector 22. The balloon manufacturing process detector 22 has an inflation station that can inflate the balloon catheter 8 to expand the balloon. A pneumatic pipe interface 221 with a locking ring is provided on the inflation station. By inserting the inflation end of the balloon catheter 8 into the pneumatic pipe interface 221, the balloon can be inflated. In this embodiment, the balloon manufacturing process detector 22 is the balloon manufacturing process detector 801 of BW-TEC Corporation. The first clamping mechanism support base 21 is formed of an aluminum plate.

[0047] The second clamping mechanism 3 includes a second clamping mechanism support seat 31 fixedly connected to the first slider 15, a cylinder 33 mounted on the second clamping mechanism support seat 31, a pressing head (not shown in the figure) provided on the piston rod of the cylinder 33, a clamping platform 32 located above and below the pressing head, and a second pneumatic valve 34 provided on the air inlet pipe of the cylinder 33. The pressing head can press the end of the balloon catheter 8 under the action of the piston rod of the cylinder 33 to block it. The balloon diameter measuring device further includes a clamping mechanism locking member 35 for locking the relative position between the second clamping mechanism 3 and the first slide rail 11. In this embodiment, the clamping mechanism locking member 35 refers to the three-axis positioning locking member 63, which will not be elaborated here. Preferably, the second clamping mechanism support seat 31 is formed of an aluminum plate.

[0048] To prevent damage to the device caused by collision when the second clamping mechanism 3 and / or the three-axis positioning mechanism 6 move, the balloon diameter measuring device further includes a buffer strip 7. The buffer strip 7 is installed on one side of the positioning support seat 61 facing the second clamping mechanism 3 (i.e., the right side of the positioning support seat 61) and on one side of the second clamping mechanism 3 facing the positioning support seat 61 (i.e., the left side of the second clamping mechanism support seat 31). Of course, there can be other setting methods, which are not limited in this application.

[0049] In addition, the balloon diameter measuring device further includes a limit block 12 provided between the first clamping mechanism 2 and the three-axis positioning mechanism 6 for limiting the distance between the three-axis positioning mechanism 6 and the first clamping mechanism 2 to prevent the three-axis positioning mechanism 6 from accidentally hitting the second clamping mechanism 3 and causing damage.

[0050] The base 1 is preferably made of a lightweight metal or metal alloy. In this embodiment, the base 1 is an aluminum plate. A plurality of hollow grooves 14 are selectively provided on the base 1 to further reduce the weight of the device, thereby facilitating the handling of the equipment. To further facilitate the handling of the device, a hand-held portion 13 is further provided on the right side of the base 1 and the left side of the first clamping support seat.

[0051] Working principle:

[0052] Insert the proximal end of the uninflated balloon catheter 8 into the pneumatic tube interface 221. Adjust the distance between the three-axis positioning mechanism 6 and the first clamping mechanism 2 according to the position of the balloon so that the balloon is located on the measurement path of the laser measuring instrument 4. Adjust the distance between the two support columns 53 according to the shape and size of the balloon to provide support for the balloon. Adjust the distance between the second clamping mechanism 3 and the first clamping mechanism 2 according to the distal position of the balloon catheter 8 so that the distal end of the balloon catheter 8 is directly below the pressing head. Rotate the clamping mechanism locking member 35 to lock the second clamping mechanism 3. Start the cylinder 33, and the pressing head moves downward to block the distal end of the balloon catheter 8. Start the balloon process detector 22 to pressurize the balloon. After the balloon expands, selectively move the support column 53 and adjust the three-axis positioning platform 62 according to the shape and size of the balloon. Start the laser measuring instrument 4 to measure the balloon diameter.

[0053] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A balloon diameter measuring device, comprising a base (1), a first clamping mechanism (2) and a second clamping mechanism (3) respectively arranged on both sides of the base (1) along the length direction of the base (1), a laser measuring instrument (4) arranged between the first clamping mechanism (2) and the second clamping mechanism (3), and a first slide rail (11) arranged on the base (1) and extending along the length direction of the base (1), wherein the second clamping mechanism (3) is slidably arranged on the first slide rail (11) via a first slider (15), characterized in that: The balloon diameter measuring device also includes: A three-axis positioning mechanism (6), comprising a positioning support seat (61) slidably disposed on the first slide rail (11) via a second slider (16), a three-axis positioning platform (62) mounted on the positioning support seat (61), and a three-axis positioning locking member (63) for locking the relative position between the positioning support seat (61) and the first slide rail (11), wherein the laser measuring instrument (4) is mounted on the three-axis positioning platform (62); A balloon support mechanism (5) comprises a balloon support seat (51) mounted on the laser measuring instrument (4), a second slide rail (52) arranged on the balloon support seat (51) and extending in the same direction as the first slide rail (11), a support column (53) arranged on the second slide rail (52) and slidable along the extending direction of the second slide rail (52), and stop blocks (54) arranged at both ends of the second slide rail (52), wherein a groove for accommodating a balloon is provided at the top end of the support column (53).

2. The balloon diameter measuring device according to claim 1, characterized in that: The supporting columns (53) have two; and / or, The groove is a V-shaped groove (531).

3. The balloon diameter measuring device according to claim 1, characterized in that: The three-axis positioning locking member (63) includes a screw rod threadedly connected to the second slider (16); when the three-axis positioning locking member (63) is in a locked state, one end of the screw rod passes through the second slider (16) and abuts against the first slide rail (11) to prevent the three-axis positioning mechanism (6) from sliding; when the three-axis positioning locking member (63) is in an unlocked state, the screw rod does not contact the first slide rail (11) to allow the three-axis positioning mechanism (6) to slide, and the screw rod is rotated so that the three-axis positioning locking member (63) can switch between the locked state and the unlocked state.

4. The balloon diameter measuring device according to claim 1, characterized in that: The first clamping mechanism (2) comprises a first clamping mechanism support seat (21), and a balloon process detector (22) disposed on the first clamping mechanism support seat (21); the balloon process detector (22) has an inflation station for inflating the balloon catheter (8); and a pneumatic tube interface (221) equipped with a locking ring is disposed on the inflation station.

5. The balloon diameter measuring device according to claim 1, characterized in that: The second clamping mechanism (3) comprises a second clamping mechanism support seat (31), a cylinder (33) mounted on the second clamping mechanism support seat (31), and a pressing head arranged on the piston rod of the cylinder (33); the pressing head can press the end of the balloon catheter (8) to seal it under the action of the piston rod.

6. The balloon diameter measuring device according to claim 1, characterized in that: The balloon diameter measuring device further comprises a clamping mechanism locking member (35) for locking the relative position of the second clamping mechanism (3) and the first slide rail (11).

7. The balloon diameter measuring device according to claim 1, characterized in that: The balloon diameter measuring device further comprises a buffer strip (7), wherein the buffer strip (7) is mounted on a side of the positioning support seat (61) facing the second clamping mechanism (3) and on a side of the second clamping mechanism (3) facing the positioning support seat (61).

8. The balloon diameter measuring device according to claim 1, characterized in that: The base (1) has a plurality of hollow grooves (14).

9. The balloon diameter measuring device according to claim 1, characterized in that: The balloon diameter measuring device further comprises a handheld portion (13), wherein the handheld portion (13) comprises two groups selectively mounted on the outside of the first clamping mechanism (2) and the base (1).

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