Lower limb restraint device and in-aorta balloon counterpulsation device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a lower limb restraining device and an in-aorta balloon counterpulsation device. The limiting pieces are arranged on the main rod in the length direction of the main rod at intervals, have working positions arranged on the same side relative to the main rod and are suitable for limiting limbs on the upper side and the lower side of the knee joint of the patient respectively; the switch piece is arranged on the limiting piece and is suitable for adjusting the limiting piece to be in a limiting state or a loosening state; the pressure measuring unit comprises a pressure measuring piece and a warning unit which are in communication connection, and the pressure measuring piece is arranged on the limiting piece and is suitable for detecting the pressure of the limiting piece and the limbs of the patient. By means of the arrangement, medical staff can conveniently and effectively obtain the tightness degree information of the lower limb structure of the patient after the fixation operation, and the medical staff can conveniently and effectively adjust the limiting piece or other auxiliary binding devices.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a lower limb restraint device and an intra-aortic balloon counterpulsation device. Background Art

[0002] In the medical field, some heart disease patients, particularly those with heart failure, require placement of an intra-aortic balloon pump (IABP) on the superior femoral artery after cardiac surgery. This device increases coronary perfusion while reducing cardiac afterload, alleviating the burden on the heart and helping the heart survive critical periods. The main structure of the IABP typically needs to be in place for at least five days after surgery. Because part of the device is placed in the patient's limbs, such as the thigh, flexion can cause the device tubing to bend and break within the blood vessels, leading to gas leakage and a dangerous condition for the patient.

[0003] To prevent the patient's lower limbs from moving subconsciously or for other reasons after surgery, the patient's lower limb on the side where the IABP is placed needs to be fixed. Currently, the commonly used restraint structure is a strap, the tightness of which is difficult to control. Utility Model Content

[0004] In view of this, the present invention provides a lower limb restraint device to solve the problem that medical staff have difficulty in regulating the tightness of the patient's limb structure after fixation surgery.

[0005] In the first aspect, the utility model provides a lower limb restraint device, comprising: a main rod; a pair of limiting parts, which are arranged on the main rod at intervals along the length direction of the main rod, and have working positions arranged on the same side relative to the main rod, and are suitable for limiting the limbs above and below the patient's knee joint respectively; a switch part, which is arranged on the limiting part and is suitable for adjusting the limiting part to a limited state or a loose state; a pressure measuring unit, comprising a pressure measuring part and a warning unit in communication connection, and the pressure measuring part is arranged on the limiting part and is suitable for detecting the pressure between the limiting part and the patient's lower limbs.

[0006] Beneficial effects

[0007] A pair of limiters are set on the same side of the main rod. The limiters can restrain a single lower limb of the patient. The pair of limiters on the same side can effectively restrain and limit the upper and lower limbs of the patient connected to the same knee joint. At the same time, a pressure measuring piece is set on the limiter, and a warning unit connected to the pressure measuring piece is also set, so that when the contact pressure with the limiter exceeds a preset reasonable threshold, an alarm can be triggered, which is convenient for medical staff to comfort the patient or adjust the state of the limiter through the switch. This setting makes it convenient for medical staff to effectively obtain information on the tightness of the patient's lower limb structure after fixation surgery, and makes it convenient for medical staff to effectively adjust the limiter or other auxiliary restraint devices.

[0008] In an optional embodiment, the limiting member includes: a fixed arc ring, which is cooperatively connected with the main rod and has an accommodating portion at one end away from the main rod, a first limiting portion is provided in the accommodating portion, and the first limiting portion is connected to the inner wall of the accommodating portion through the switch member; a movable arc ring, one end of which is hingedly connected to the fixed arc ring and the other end of which is provided with a second limiting portion, the second limiting portion is suitable for being extended into the accommodating portion under the action of external force, and being engaged with the first limiting portion to make the limiting member in a limited state, or is suitable for being disengaged from the cooperative connection with the first limiting portion under the action of the switch member to make the limiting member in a loose state.

[0009] In an optional embodiment, the first limiting portion and the second limiting portion are respectively provided with a plurality of helical teeth.

[0010] In an optional embodiment, an elastic buffer portion is further included, and the elastic buffer portion is arranged on the side of the limiting member facing the patient's lower limb.

[0011] In an optional embodiment, the pressure measuring member is arranged between the limiting member and the elastic buffer portion.

[0012] In an optional embodiment, the switch component includes: a lock body and an unlocking component, the lock body is connected to the first limiting portion and is at least partially exposed from the accommodating portion, the unlocking component is arranged in conjunction with the lock body and has a standby state separated from the lock body.

[0013] In an optional embodiment, the switch component further includes: a tension adjustment component, which is arranged on the lock body and / or the second limiting portion, suitable for driving the first limiting portion in the limiting state to move relative to the second limiting portion, and the tension adjustment component is communicatively connected to the pressure measuring component.

[0014] In an optional embodiment, the present invention further comprises: a first elbow, which is provided on the main rod and extends along the lateral direction of the main rod, the first elbow is provided with a first limiting end facing away from the main rod, and one of the pair of limiting members is movably connected to the first elbow and cooperates with the first limiting end to limit the position; a second elbow, which is provided on the main rod and extends along the lateral direction of the main rod, is spaced apart from the first elbow along the length direction of the main rod, the second elbow is provided with a second limiting end facing away from the main rod, and the other of the pair of limiting members is movably connected to the second elbow and cooperates with the second limiting end to limit the position;

[0015] In an optional embodiment, at least one of the first elbow and the second elbow is movably connected to the main rod along its length direction, and has an active state of moving along the length direction of the main rod, and a locked state of limiting each other with the main rod along its upper length direction.

[0016] In a second aspect, the present invention further provides an intra-aortic balloon counterpulsation device, comprising: an intra-aortic balloon counterpulsation structural body; and the above-mentioned lower limb restraint device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a lower limb restraint device according to an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Transparent image of lower extremity restraint shown;

[0020] Description of reference numerals:

[0021] 1. Main rod; 11. First elbow; 12. Second elbow; 2. Fixed arc ring; 21. Accommodation part; 22. First limit part; 3. Movable arc ring; 31. Second limit part; 4. Elastic buffer part; 5. Switch component; 6. Pressure measuring component; 7. Warning unit. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0023] like Figure 1-Figure 2 In the first aspect, this embodiment provides a lower limb restraint device, including: a main rod 1, a pair of limit members, a switch member 5 and a pressure measuring unit.

[0024] The main rod 1 is a hard structure, such as alloy or carbon fiber, and is arranged as a straight rod in this embodiment. According to medical needs, the main rod 1 can also have a bent or curved structure.

[0025] A pair of stoppers are disposed on the main rod 1 at intervals along its length and have working positions disposed on the same side relative to the main rod 1. In this embodiment, preferably, "on the same side" refers to being disposed in the same radial direction at different axial positions along the main rod 1. It is understood that when the angle between the two stoppers relative to the main rod 1 along the circumferential direction is within a range of 90 degrees, they can be considered to be on the same side. The pair of stoppers respectively limit the patient's limbs on the upper and lower sides of the knee joint.

[0026] The switch member 5 is arranged on the limit member, which is suitable for adjusting the limit member to a limit state in which it surrounds the lower limb and limits the lower limb, or a loose state in which the clamp is opened and can be detached from the lower limb. Preferably, the limit member in the limit state has an adjustable tightness relative to the lower limb. As a convertible embodiment, when the tightness is not adjustable, the lower limb restraint device can be coordinated with other external auxiliary restraint devices with adjustable tightness, such as straps, for adjustment.

[0027] The pressure measuring unit includes a pressure measuring piece 6 and an alarm unit 7 that are communicatively connected. The pressure measuring piece 6 is preferably a pressure sensor, which is arranged on the limit piece and is suitable for detecting the pressure between the limit piece and the patient's lower limb. The alarm unit 7 can be a buzzer or a flash light, etc.

[0028] A pair of limiters are set on the same side of the main rod 1. The limiters can restrain a single lower limb of the patient. The pair of limiters on the same side can realize effective restraint and limitation of the upper and lower limbs of the patient connected to the same knee joint. At the same time, a pressure measuring piece 6 is set on the limiter, and a warning unit 7 connected to the pressure measuring piece 6 is also set, so that when the contact pressure with the limiter exceeds a preset reasonable threshold, an alarm can be triggered, which is convenient for medical staff to comfort the patient or adjust the state of the limiter through the switch 5. This setting makes it convenient for medical staff to effectively obtain information on the tightness of the patient's lower limb structure after fixation surgery, and makes it convenient for medical staff to effectively adjust the limiter or other auxiliary restraint devices.

[0029] Specifically, the limiting member includes a fixed arc ring 2 and a movable arc ring 3, which can be combined with each other to form a ring-shaped limiting state limiting member.

[0030] The fixed arc ring 2 is connected to the main rod 1, specifically with a movable connection, such as a hinge, or can be fixed at a preset angle. A receiving portion 21 is provided at the end of the fixed arc ring 2 away from the main rod 1. The receiving portion 21 is configured as a groove, and a first limiting portion 22 is provided therein. The first limiting portion 22 is configured as a strip and is hingedly connected to the inner wall of the receiving portion 21 via a switch member 5.

[0031] One end of the movable arc ring 3 is hingedly connected to the fixed arc ring 2, and the other end is provided with a second limiting portion 31. The second limiting portion 31 is suitable for being extended into the accommodating portion 21 under the action of external force, and being engaged with the first limiting portion 22 to make the limiting member in a limited state, or, being suitable for being disengaged from the mating connection with the first limiting portion 22 under the action of the switch member 5, so that the limiting member is in a loose state.

[0032] Specifically, the first limiting portion 22 and the second limiting portion 31 are respectively provided with a plurality of bevel teeth. As a convertible embodiment, the bevel teeth can also be blocks of other shapes.

[0033] In addition, the lower limb restraint device also includes an elastic buffer part 4, which can be a sponge pad or a rubber pad, etc. It is arranged on the side of the limiter facing the patient's lower limb. Preferably, the elastic buffer part 4 is arranged on the inner side of the fixed arc ring 2 and the movable arc ring 3.

[0034] Further preferably, the pressure measuring member 6 is arranged between the limit member and the elastic buffer portion 4. This arrangement improves the accuracy of the detection of the pressure measuring member 6. It can be understood that the pressure measuring member 6 can also be arranged on the elastic buffer portion 4.

[0035] The switch 5 comprises a lock body and an unlocking member. The lock body is connected to the first limiting portion 22 and is at least partially exposed within the accommodating portion 21. The unlocking member is provided in conjunction with the lock body and can be separated from the lock body in a standby state. Separating the lock body and unlocking member prevents patients or medical personnel from accidentally unlocking the device, thereby improving device safety.

[0036] The switch element 5 also includes a tension adjustment member. In this embodiment, it is provided on the lock body, can also be provided on the second stopper 31, or both. The tension adjustment member is adapted to drive the first stopper 22 in the restricted state to move relative to the second stopper 31. Preferably, the tension adjustment member is communicatively connected to the pressure measuring member 6. This arrangement enables automatic feedback adjustment of the tension of the stopper, improving the automation level of the device. As a variant embodiment, the tension adjustment member may be omitted.

[0037] The lower limb restraint device further includes: a first elbow 11 and a second elbow 12 .

[0038] The first elbow 11 is provided on the main rod 1 and extends laterally along the main rod 1. The first elbow 11 is provided with a first limiting end facing away from the main rod 1. One of the pair of limiting members is movably connected to the first elbow 11 and cooperates with the first limiting end to limit the position.

[0039] The second elbow 12 is arranged on the main rod 1 and extends laterally along the main rod 1. The second elbow 12 and the first elbow 11 are spaced apart along the length direction of the main rod 1. The second elbow 12 is provided with a second limiting end facing away from the main rod 1. The other of a pair of limiting members is movably connected to the second elbow 12 and cooperates with the second limiting end to limit.

[0040] In this embodiment, one of the first elbow 11 and the second elbow 12 is movably connected to the main rod 1 along its length, and is provided with a collar and a screw that penetrates the collar and abuts the main rod 1. The axial limitation or movement of the elbow and the main rod 1 can be achieved by screwing the screw, so that the elbow has a movable state in which it moves along the length of the main rod 1, and a locked state in which it is mutually limited along its length. Preferably, the collar and the main rod 1 can also be provided with mutually cooperating threaded structures.

[0041] As a convertible embodiment, both the first elbow 11 and the second elbow 12 can be movably connected to the main rod 1 along the length direction thereof.

[0042] In a second aspect, the present invention further provides an intra-aortic balloon counterpulsation device, comprising: an intra-aortic balloon counterpulsation structure body and the above-mentioned lower limb restraint device.

[0043] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A lower limb restraint device, characterized in that: include: Main rod (1); A pair of limiting members are arranged on the main rod (1) at intervals along the length direction of the main rod (1), have working positions arranged on the same side relative to the main rod (1), and are suitable for limiting the upper and lower limbs of the patient's knee joint respectively; A switch member (5) is provided on the limiting member and is suitable for adjusting the limiting member to a limiting state or a loose state; The pressure measuring unit comprises a pressure measuring piece (6) and a warning unit (7) in communication connection, wherein the pressure measuring piece (6) is arranged on the limiting piece and is suitable for detecting the pressure between the limiting piece and the patient's lower limbs.

2. The lower limb restraint device according to claim 1, characterized in that: The limiting member includes: A fixed arc ring (2) is connected to the main rod (1), and an end thereof away from the main rod (1) is provided with a receiving portion (21). A first limiting portion (22) is provided in the receiving portion (21), and the first limiting portion (22) is connected to the inner wall of the receiving portion (21) through the switch member (5); The movable arc ring (3) is hingedly connected to the fixed arc ring (2) at one end, and is provided with a second limiting portion (31) at the other end. The second limiting portion (31) is suitable for being extended into the accommodating portion (21) under the action of an external force, and being engaged with the first limiting portion (22) so that the limiting member is in a limited state, or is suitable for being disengaged from the engaged connection with the first limiting portion (22) under the action of the switch member (5) so that the limiting member is in a loose state.

3. The lower limb restraint device according to claim 2, characterized in that: The first limiting portion (22) and the second limiting portion (31) are respectively provided with a plurality of oblique teeth.

4. The lower limb restraint device according to claim 1, characterized in that: It also includes an elastic buffer portion (4), which is arranged on the side of the limiting component facing the patient's lower limbs.

5. The lower limb restraint device according to claim 4, characterized in that: The pressure measuring member (6) is arranged between the limiting member and the elastic buffer portion (4).

6. The lower limb restraint device according to claim 2, characterized in that: The switch member (5) comprises a lock body and an unlocking member, wherein the lock body is connected to the first limiting portion (22) and is at least partially exposed from the accommodating portion (21), and the unlocking member is arranged in cooperation with the lock body and has a standby state in which it is separated from the lock body.

7. The lower limb restraint device according to claim 6, characterized in that: The switch element (5) further comprises: A tension adjusting member is provided on the lock body and / or the second limiting portion (31), and is adapted to drive the first limiting portion (22) in the limiting state to move relative to the second limiting portion (31), and the tension adjusting member is communicatively connected with the pressure measuring member (6).

8. The lower limb restraint device according to any one of claims 1 to 7, characterized in that: Also includes: A first elbow (11) is provided on the main rod (1) and extends laterally along the main rod (1); the first elbow (11) is provided with a first limiting end facing away from the main rod (1); one of the pair of limiting members is movably connected to the first elbow (11) and cooperates with the first limiting end to limit the position; The second elbow (12) is arranged on the main rod (1) and extends along the side of the main rod (1). It is spaced apart from the first elbow (11) along the length direction of the main rod (1). The second elbow (12) is provided with a second limiting end facing away from the main rod (1). The other of the pair of limiting members is movably connected to the second elbow (12) and cooperates with the second limiting end to limit.

9. The lower limb restraint device according to claim 8, characterized in that: At least one of the first elbow (11) and the second elbow (12) is movably connected to the main rod (1) along its length direction, and has an active state of moving along the length direction of the main rod (1), and a locked state of limiting each other with the main rod (1) along its upper length direction.

10. An intra-aortic balloon counterpulsation device, characterized in that: include: The main body of the intra-aortic balloon counterpulsation structure; The lower limb restraint device according to any one of claims 1 to 9.

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