A device and method for locking or releasing a medical device

Abstract

The invention relates to a device and method for locking or releasing a medical device, belonging to the field of medical device technology. The technical solution is as follows: two adjacent joint bodies (12) form a rotatable structure through a joint arm, an arched connecting rod, and a joint connecting seat; the upper end of the damping block (7) is fixed to the iron pad (6), the lower end of the damping block (7) matches the upper end of the arched connecting rod (1), and a pressure spring (5) is pressed between the iron pad (6) and the electromagnet (4). By attracting or releasing the electromagnet (4), the damping block (7) under the iron pad (6) is controlled to release or lock the rotatable structure; the first joint body is connected to the foot seat (9), and the last joint body is connected to the instrument clamp (10), on which the medical device is mounted. The beneficial effects of the invention are: it can realize the position adjustment and locking of the medical device during surgery, which can assist doctors in completing the medical process and avoid the movement of the angle and position of the medical device due to manual control, resulting in misdiagnosis or prolonging the treatment time.

Description

Technical Field

[0001] This invention relates to a device and method for locking or releasing a medical device, belonging to the field of medical device technology. Background Technology

[0002] Currently, many medical devices in medical procedures require operation at relatively fixed positions and angles, and these positions and angles are adjustable. These devices include probes, light sources, and lenses. For example, in procedures such as ultrasound-guided puncture for specimen retrieval or real-time ultrasound-guided ablation of small tumors, two medical personnel are needed: one to locate and keep the probe stationary, and the other to perform the puncture or ablation. However, in practice, after locating the lesion, the operator must hold the probe still, maintaining its angle and position until the puncture or ablation is complete. The problem is that relying on a person to hold the probe and maintain its angle and position for an extended period carries inherent risks. Even a slight change in the probe's angle and position can cause the needle or ablation point to deviate, leading to misdiagnosis or prolonged ablation time. Summary of the Invention

[0003] The purpose of this invention is to provide a device and method for locking or releasing a medical device. Under electromagnetic control, the device can control the locking or releasing of the medical device, which can assist doctors in locking the position and angle of the medical device during the medical process. This avoids changes in the angle and position of the medical device due to unstable manual control, which could lead to misdiagnosis or prolong treatment time, and avoid damage to normal tissues. This invention solves the problems existing in the prior art.

[0004] The technical solution of this invention is:

[0005] A device for locking or releasing a medical device includes a joint connector and multiple joint bodies, with adjacent joint bodies connected by the joint connector. A medical device is mounted on the distal joint body. Each joint body includes an arched connecting rod, a joint arm, an electromagnet, a pressure spring, an iron pad, and a damping block. The joint arm has a cylindrical structure, with the electromagnet fixed to the inner wall of the middle section. Below the electromagnet, a pressure spring, an iron pad, and a damping block are arranged sequentially. The bottom of the joint arm has a relatively rotatable arched connecting rod, the upper end of which is rotatably matched with the bottom of the joint arm. The lower end of the arched connecting rod extends out of the joint arm and connects to the joint connecting seat of the next joint body; a joint connecting seat is provided on the inner wall of the upper joint arm of the electromagnet, which is connected to the arched connecting rod of the previous joint body; two adjacent joint bodies form a rotatable structure through the joint arm, the arched connecting rod and the joint connecting seat; the upper end of the damping block is fixed to the iron pad, the lower end of the damping block matches the upper end of the arched connecting rod, and the pressure spring is pressed between the iron pad and the electromagnet. By the attraction or release of the electromagnet, the damping block under the iron pad is controlled to release or lock the rotatable structure.

[0006] The first joint of the plurality of joint bodies is connected to the base, and the last joint body is connected to the instrument clamp, on which a medical device is mounted.

[0007] One end of the articulated arm has a wide-mouth structure, and the other end has an arc-shaped structure; the wide-mouth structure is connected to the base or joint connecting seat, and the arc-shaped structure matches one end of the arched connecting rod and the damping block.

[0008] The arched connecting rod has an arched structure at one end and a screw structure at the other end; the joint connecting seat is provided with a limiting groove and a through hole, which are connected. The arched structure of the arched connecting rod and the arc-shaped structure of the joint arm are set together in the limiting groove. The screw structure is inserted into the through hole and extends out of the through hole, and is fastened to the joint connecting seat by a connecting lock nut.

[0009] The electromagnet has a stepped structure and a wire hole in the center. A pressure spring is sleeved on the electromagnet, and one end of the pressure spring is connected to the stepped structure. When the electromagnet is energized, the attraction force of the electromagnet is greater than the elastic force of the pressure spring.

[0010] The instrument clamp has a joint body connecting clip at one end and a clamp frame at the other end, on which medical instruments are mounted.

[0011] The outer side of the arc-shaped structure of the articulated arm is provided with a limiting ridge.

[0012] The iron pad is circular with a wire hole in the center.

[0013] The damping block has a hemispherical structure with a wire hole in the center. The damping block is made of a material with certain strength and elasticity, such as rubber or nylon.

[0014] The inner side of the arched structure is concave, and the center of the screw structure has a wire hole.

[0015] One end of the joint connector is a concave structure, and the other end is a planar structure. The concave structure has a limiting groove on its surface, and the planar structure has a through hole.

[0016] The electromagnet is provided with a coil connection terminal, and the coil connection terminals of two adjacent joints are connected to the power line through wire hole one, wire hole two, wire hole three and wire hole four.

[0017] The arched connecting rod, joint connecting seat, and joint arm are all made of metal or non-metal materials with certain hardness and strength.

[0018] The other end of the articulated arm has a circular hole at the arc-shaped end of the structure. The diameter of the circular hole is slightly larger than the outer diameter of the screw structure of the arched connecting rod, and the screw structure passes through the circular hole.

[0019] The electromagnet, iron pad, and power cord are all commonly known and used devices in this field.

[0020] A method for locking or releasing a medical device, comprising the following steps:

[0021] When the electromagnet is powered, it generates magnetic force. Under the action of this magnetic force, the iron pad overcomes the pressure of the spring and is attracted to the electromagnet. At the same time, the iron pad moves the damping block towards the electromagnet, causing the arched connecting rod to disengage from the damping block. The arched connecting rod is in a sliding and rotating state relative to the arc-shaped structure. When the power supply to the electromagnet is stopped, the iron pad loses the attraction of the electromagnet. Under the pressure of the spring, the iron pad, along with the damping block, moves towards the arched connecting rod. This increases the pressure between the arched connecting rod and the damping block, increasing the sliding resistance and preventing the arched connecting rod from sliding against the damping block. All joints are locked, and the angle and position of the medical device are locked in a static state.

[0022] This invention achieves two states under electromagnetic control: 1. sliding and rotating state; 2. locked stationary state. When in the sliding and rotating state, the operator can freely adjust the angle and position of the medical device. When in the locked stationary state, the angle and position of the medical device cannot be adjusted, and it remains locked stationary.

[0023] The beneficial effects of this invention are: it enables the adjustment and locking of the position of medical devices during surgery, which can assist doctors in completing the medical process and avoid misdiagnosis or prolonged treatment time caused by manual control of the medical devices due to movement of the angle and position. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the arched connecting rod structure of the present invention;

[0025] Figure 2 This is a top view of the arched connecting rod of the present invention;

[0026] Figure 3 This is a schematic diagram of the joint connector structure of the present invention;

[0027] Figure 4 This is a top view of the joint connector of the present invention;

[0028] Figure 5 This is a schematic diagram of the articulated arm structure of the present invention;

[0029] Figure 6 This is a top view of the articulated arm of the present invention;

[0030] Figure 7 This is a schematic diagram of the electromagnet structure of the present invention;

[0031] Figure 8 This is a top view of the electromagnet of the present invention;

[0032] Figure 9 This is a schematic diagram of the pressure spring structure of the present invention;

[0033] Figure 10 This is a top view of the pressure spring of the present invention;

[0034] Figure 11 This is a schematic diagram of the iron pad structure of the present invention;

[0035] Figure 12 This is a top view of the iron pad of the present invention;

[0036] Figure 13 This is a schematic diagram of the damping block structure of the present invention;

[0037] Figure 14 This is a top view of the damping block of the present invention;

[0038] Figure 15 This is a schematic diagram of the connecting lock nut structure of the present invention;

[0039] Figure 16 This is a schematic diagram of the base structure of the present invention;

[0040] Figure 17 This is a top view of the base of the present invention;

[0041] Figure 18 This is a schematic diagram of the instrument clip structure of the present invention;

[0042] Figure 19 This is a schematic diagram of the power cord structure of the present invention;

[0043] Figure 20 This is a schematic diagram of the joint structure of the present invention;

[0044] Figure 21 This is a schematic diagram of the structure of the present invention;

[0045] Figure 22 This is a schematic diagram illustrating the usage state of the present invention;

[0046] In the diagram: 1. Arched connecting rod; 2. Joint connecting seat; 3. Joint arm; 4. Electromagnet; 5. Pressure spring; 6. Iron pad; 7. Damping block; 8. Connecting lock nut; 9. Foot seat; 10. Instrument clamp; 11. Power cord; 12. Joint body. Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0048] In this embodiment, refer to the appendix. Figure 1-22 .

[0049] A device for locking or releasing a medical device includes a joint connector 2 and a joint body 12. Multiple joint bodies 12 are connected vertically to each other via the joint connector 2. A medical device is mounted on the distal end of each joint body 12. Each joint body 12 includes an arched connecting rod 1, a joint arm 3, an electromagnet 4, a pressure spring 5, an iron pad 6, and a damping block 7. The joint arm 3 has a cylindrical structure. The electromagnet 4 is fixed to the inner wall of the middle section of the joint arm 3. Below the electromagnet 4, the pressure spring 5, the iron pad 6, and the damping block 7 are arranged sequentially. The bottom of the joint arm 3 has a relatively rotatable arched connecting rod 1, the upper end of which is connected to the joint arm 3. The bottom is rotatable and matched. The lower end of the arched connecting rod 1 extends out of the joint arm 3 and connects to the joint connecting seat of the next joint body. The inner wall of the upper joint arm 3 of the electromagnet 4 is provided with a joint connecting seat 2, which is connected to the arched connecting rod of the previous joint body. Two adjacent joint bodies 12 form a rotatable structure through the joint arm, the arched connecting rod and the joint connecting seat. The upper end of the damping block 7 is fixed together with the iron pad 6, and the lower end of the damping block 7 matches the upper end of the arched connecting rod 1. The pressure spring 5 is pressed between the iron pad 6 and the electromagnet 4. By the attraction or release of the electromagnet 4, the damping block 7 under the iron pad 6 is controlled to release or lock the rotatable structure.

[0050] The first joint of the plurality of joint bodies 12 is connected to the base 9, and the last joint body is connected to the instrument clamp 10, on which a medical device is mounted.

[0051] See attached document Figure 1 , 2The arched connecting rod 1 has an arched structure at one end and a screw structure at the other end. The inner side of the arched structure is concave, and the center of the screw structure has a wire hole. The outer side of the arched structure matches the inner side of the arc-shaped structure of the joint arm. The screw structure is inserted into the through hole from the limiting groove of the concave structure of the joint connecting seat and extends out of the through hole. The arched connecting rod 1 is made of metal or non-metal materials with a certain strength.

[0052] See attached document Figure 3 , 4 The joint connecting seat 2 is a connecting base for two adjacent joint bodies 12. One end of the joint connecting seat 2 is a concave structure and the other end is a planar structure. The concave structure has a limiting groove on its surface and a through hole on its planar structure. The outer circular surface of the joint connecting seat 2 has four mounting holes. The screw structure of the arched connecting rod 1 is inserted into the through hole and extends out of the through hole, and is connected by the connecting lock nut 8. The joint connecting seat 2 is connected to the joint arm 3 of the next joint body through the mounting holes.

[0053] See attached document Figure 5 , 6 The articulated arm 3 is a cylindrical structure with a wide-mouth structure at one end and an arc-shaped structure at the other end. The arc-shaped structure has a round hole at its end and a limiting ridge on its outer side. The articulated arm 3 has mounting holes two and three. The wide-mouth structure of the articulated arm 3 is connected to the planar structure of the articulated connecting seat 2 through mounting hole two, and the middle part of the articulated arm 3 is connected to the electromagnet 4 through mounting hole three. The arc-shaped structure of the articulated arm 3 matches the arch-shaped structure of the arched connecting rod 1. The articulated arm 3 is made of metal or non-metal materials with a certain hardness and strength.

[0054] See attached document Figure 7 , 8 19. The top view of the electromagnet 4 is circular. The electromagnet 4 is provided with a coil connection terminal and a wire hole is provided at the center position. The stepped structure on the electromagnet 4 is a two-stage step, divided into a large cylinder and a small cylinder. The large cylinder is provided with a mounting screw hole. The electromagnet is installed on the joint arm 3 by screws and mounting screw holes. The coil connection terminal is connected to the power line 11.

[0055] See attached document Figure 9 , 10 The pressure spring 5 is a ring structure. The pressure spring 5 is sleeved on the small cylinder. One end of the pressure spring 5 is connected to the end face where the large cylinder and the small cylinder meet, and the other end is in contact with the plane on one side of the iron pad 6.

[0056] See attached document Figure 11 , 12 The iron pad 6 is circular with a wire hole in the center. One side of the iron pad 6 is matched with the pressure spring 5, and the other side is matched with the damping block 7. The iron pad is made of iron plate.

[0057] See attached document Figure 13 , 14 The damping block 7 has a hemispherical structure, with one end being a plane and the other end being a sphere. A wire hole three is provided at the center position. The wire hole three is trumpet-shaped, with the plane being the small end of the wire hole three and the sphere being the large end of the wire hole three. The plane of the damping block 7 is connected to the plane on the other side of the iron pad, and the sphere of the damping block 7 matches the concave surface of the arched structure of the arched connecting rod 1. The damping block is made of a material with certain strength and elasticity, such as rubber or nylon.

[0058] See attached document Figure 15 , 16 17. The screw structure of the arched connecting rod 1 is inserted into the through hole from the limiting groove of the concave structure of the joint connecting seat 2 and extends out of the through hole. The arched connecting rod 1, the joint connecting seat 2 and the joint arm 3 are matched together by the connecting lock nut 8. The foot seat 9 includes a base and a ring frame. The ring frame is provided with four mounting holes along the circumferential direction. The foot seat 9 is connected to the wide-mouth structure of the joint arm of the first joint body through the mounting holes.

[0059] See attached document Figure 18 The instrument clamp 10 has a joint body connecting clip at one end and a clamp frame at the other end, with a color Doppler ultrasound probe mounted on the clamp frame.

[0060] See attached document Figure 20 , 21 22. The joint body 12 includes an arched connecting rod 1, a joint arm 3, an electromagnet 4, a pressure spring 5, an iron pad 6, and a damping block 7. The joint arm 3 is a cylindrical structure. The electromagnet 4, pressure spring 5, iron pad 6, and damping block 7 are arranged inside the joint arm 3. One end of the pressure spring 5 is connected to the stepped structure of the electromagnet 4, and the other end is in contact with the plane on one side of the iron pad 6. The plane on the other side of the iron pad 6 is connected to the plane of the damping block 7. The spherical surface of the damping block 7 matches the concave surface on the inner side of the arched structure of the arched connecting rod 1, and the outer surface of the arched structure matches the inner surface of the arc-shaped structure of the joint arm. The screw structure of the arched connecting rod 1 is inserted into the through hole from the limiting groove of the concave structure of the joint connecting seat and extends out of the through hole to match the arched connecting rod 1, the joint connecting seat 2, and the joint arm 3 together through the connecting lock nut 8. The planar structure of the joint connecting seat matches and connects with the wide-mouth structure of the joint arm of the next joint body to realize the connection between the joint bodies 12.

[0061] A method for locking or releasing a medical device, comprising the following steps:

[0062] When electromagnet 4 is powered, it generates magnetic force. Under the action of this magnetic force, the iron pad 6 overcomes the pressure of the pressure spring 5 and is attracted to the electromagnet 4. At the same time, the iron pad 6 drives the damping block 7 to move towards the electromagnet 4, causing the arched connecting rod 1 to disengage from the damping block 7. The arched connecting rod 1 is in a sliding and rotating state relative to the arc structure. When the power supply to the electromagnet 4 is stopped, the iron pad 6 loses the attraction of the electromagnet 4. Under the pressure of the pressure spring 5, the iron pad 6, together with the damping block 7, moves towards the arched connecting rod 1, increasing the pressure between the arched connecting rod 1 and the damping block 7 and increasing the sliding resistance. This prevents the arched connecting rod 1 from sliding with the damping block 7, locking the joints and keeping the angle and position of the medical device locked in a static state.

[0063] Example: The medical device is a color Doppler ultrasound probe.

[0064] The specific usage process of this invention (patient ready): Fix the color Doppler ultrasound probe on the instrument clamp 10 → The doctor turns on the power switch to supply power to the electromagnet 4 → The joints are in a state of sliding without resistance → The doctor holds the instrument clamp handle to find the optimal puncture angle and position → The puncture angle and position are determined → Turn off the power to stop supplying power to the electromagnet 4 → The electromagnetic attraction disappears → The pressure spring 5 acts on the iron pad 6 → The iron pad 6 transmits the elastic force to the damping block 7 → The relative pressure and sliding resistance between the damping block 7 and the arched connecting rod 1 increase → The joints are in a locked state → Maintained state → Puncture or ablation treatment is completed → Remove the color Doppler ultrasound probe → Turn on the power to supply power to the electromagnet 4 → Move the color Doppler ultrasound probe back to the initial position → Turn off the power to stop supplying power to the electromagnet 4, completing one puncture or ablation treatment process.

Claims

1. A device for locking or releasing a medical device, characterized in that: It includes a joint connector (2) and a joint body (12). There are multiple joint bodies (12). Two adjacent joint bodies (12) are connected by the joint connector (2). A medical device is provided on the end of the joint body (12). The joint body (12) includes an arched connecting rod (1), a joint arm (3), an electromagnet (4), a pressure spring (5), an iron pad (6), and a damping block (7). The joint arm (3) is a cylindrical structure. The electromagnet (4) is fixed on the inner wall of the middle part of the joint arm (3). The pressure spring (5), the iron pad (6), and the damping block (7) are arranged in sequence below the electromagnet (4). The bottom of the joint arm (3) is provided with an arched connecting rod (1) that can rotate relative to it. The upper end of the arched connecting rod (1) is connected to the bottom of the joint arm (3). The lower end of the arched connecting rod (1) extends out of the joint arm (3) and connects to the joint connecting seat of the next joint body; the upper joint arm (3) of the electromagnet (4) is provided with a joint connecting seat (2), which is connected to the arched connecting rod of the previous joint body; two adjacent joint bodies (12) form a rotatable structure through the joint arm, the arched connecting rod and the joint connecting seat; the upper end of the damping block (7) is fixed together with the iron pad (6), the lower end of the damping block (7) matches the upper end of the arched connecting rod (1), the pressure spring (5) is pressed between the iron pad (6) and the electromagnet (4), and the damping block (7) under the iron pad (6) is controlled to release or lock the rotatable structure by the attraction or release of the electromagnet (4).

2. The device for locking or releasing a medical device according to claim 1, characterized in that: The first joint of the plurality of joint bodies (12) is connected to the base (9), and the last joint body is connected to the instrument clamp (10).

3. A device for locking or releasing a medical device according to claim 1 or 2, characterized in that: The articulated arm (3) has a wide-mouth structure at one end and an arc-shaped structure at the other end; the wide-mouth structure is connected to the foot seat (9) or the joint connecting seat (2), and the arc-shaped structure is matched with the upper damping block (7) of the arched connecting rod (1).

4. A device for locking or releasing a medical device according to claim 1 or 2, characterized in that: The arched connecting rod (1) has an arched structure at one end and a screw structure at the other end; the joint connecting seat (2) is provided with a limiting groove and a through hole, the limiting groove and the through hole are connected, the arched structure of the arched connecting rod (1) and the arc structure of the joint arm (3) are set together in the limiting groove, the screw structure is inserted into the through hole and extends out of the through hole, and is fastened to the joint connecting seat (2) by the connecting lock nut (8).

5. The device for locking or releasing a medical device according to claim 4, characterized in that: The electromagnet (4) has a stepped structure and a wire hole in the center. A pressure spring (5) is sleeved on the electromagnet (4), and one end of the pressure spring (5) is connected to the stepped structure.

6. The device for locking or releasing a medical device according to claim 2, characterized in that: The instrument clamp (10) has a joint body connecting clip at one end and a clamp frame at the other end, on which medical devices are mounted.

7. The device for locking or releasing a medical device according to claim 4, characterized in that: The outer side of the arc-shaped structure of the articulated arm (3) is provided with a limiting ridge.

8. A device for locking or releasing a medical device according to claim 5, characterized in that: The iron pad (6) is circular with a wire hole 2 in the center; the damping block (7) is a hemispherical structure with a wire hole 3 in the center; the inner side of the arch structure is concave, and the center of the screw structure has a wire hole 4.

9. A device for locking or releasing a medical device according to claim 8, characterized in that: The electromagnet (4) is provided with a coil connection terminal. The coil connection terminals of two adjacent joints are connected to the power line (11) through wire hole one, wire hole two, wire hole three and wire hole four.

10. A method for locking or releasing a medical device, employing the apparatus according to any one of claims 1-9, characterized in that... It includes the following steps: When the electromagnet (4) is powered, it generates magnetic force. Under the action of the magnetic force, the iron pad (6) overcomes the pressure of the pressure spring (5) and is attracted to the electromagnet (4). At the same time, the iron pad (6) drives the damping block (7) to move towards the electromagnet (4), causing the arched connecting rod (1) to separate from the damping block (7). The arched connecting rod (1) is in a sliding and rotating state relative to the arc structure. When the power supply to the electromagnet (4) is stopped, the iron pad (6) loses the attraction of the electromagnet (4). Under the pressure of the pressure spring (5), the iron pad (6) together with the damping block (7) moves towards the arched connecting rod (1), increasing the pressure between the arched connecting rod (1) and the damping block (7) and increasing the sliding resistance. This prevents the arched connecting rod (1) and the damping block (7) from sliding, locking the joints and keeping the angle and position of the medical device locked in a static state.

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