Laryngeal foreign body extraction clamp

Abstract

This invention discloses a throat foreign body retrieval gripper, comprising a support sleeve, a mounting block fixed to the left side inside the support sleeve, and a guide rod consisting of first finger rings fixed to the upper and lower ends of the right side of the support sleeve's outer wall. A drive assembly, laterally slidable inside the support sleeve, controls the rotation of a gripping assembly rotated on the left side of the support sleeve. A displacement assembly fixedly fitted to the outer wall of the drive assembly, in conjunction with an unlocking assembly rotated on the right side of the support sleeve, locks and unlocks the gripping assembly after it is closed. This invention, through its purely mechanical design, allows medical personnel to easily grip and handle throat foreign bodies, avoiding the failure rate of electronic components, reducing the workload for medical personnel, and ensuring the progress of foreign body retrieval. This invention can lock the gripping force to prevent changes in the gripping force during retrieval, thus preventing the foreign body from detaching from the gripping assembly and ensuring the effectiveness of the device in gripping foreign bodies.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically a foreign body retrieval clamp for the throat. Background Technology

[0002] Currently, the most commonly used foreign body forceps in clinical practice are rat-bite forceps, which have interlocking forceps heads and a usage rate of over 40% in my country. While the interlocking forceps heads are well-suited for grasping strip-shaped, rod-shaped, or sheet-shaped foreign bodies, they are difficult to hold securely for common clinical objects such as peanuts and nuts. Spherical or round foreign bodies are prone to slipping during the grasping process, causing secondary injury or even suffocation. For slightly larger, smooth-surfaced spherical foreign bodies, such as marbles, they may be impossible to grasp at all. This can lead to prolonged airway obstruction after foreign body removal, and in severe cases, may even endanger the patient's life. Many clinical patients have softer foreign bodies in their throats that are easily deformed or broken into small pieces, such as jelly or gel-like substances. Interlocking forceps heads are extremely difficult to use when handling these types of foreign bodies.

[0003] The patent published under publication number "CN218075135U" is titled "A Pharyngeal Foreign Body Removal Device." This device is electrically driven. As is well known, the failure rate of electronic components increases during use. While medical staff can replace the device with a new one when it malfunctions, they need to reuse the replacement device, increasing their workload and hindering the removal of the foreign body. Therefore, this invention designs a pharyngeal foreign body extraction gripper to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a throat foreign body extraction clamp to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a throat foreign body extraction clamp, comprising a support sleeve, an installation block fixed on the left side inside the support sleeve, and a guide rod consisting of a first finger ring fixed at the upper and lower ends on the right side of the outer wall of the support sleeve; a drive component that slides laterally inside the support sleeve can control the clamping component that rotates on the left side inside the support sleeve to rotate; and a displacement component fixedly sleeved on the outer wall of the drive component, in conjunction with an unlocking component that rotates on the right side outside the support sleeve, can lock and unlock the clamping component after it is closed.

[0006] The driving component includes a slide rod that slides laterally to the middle of the support sleeve. A second finger ring is fixedly mounted on the right side of the slide rod. The clamping component includes a connecting pin that is rotatably mounted to the middle of the mounting block. A mounting sleeve is fixedly mounted on the right side of the connecting pin. A spiral guide groove is integrally provided inside the mounting sleeve. A ball bearing is embedded in the guide groove at the end of the slide rod away from the second finger ring. A cam is fixedly mounted on the left side of the connecting pin. An arc-shaped clamping plate is fixedly mounted on the outside of the mounting pin that is rotated at the upper and lower ends on the left side of the support sleeve. The displacement component includes a connecting block that is fixedly mounted on the right side of the slide rod. A first spring is fixed between the inner side of the first wedge block that slides longitudinally at the upper and lower ends of the connecting block and the connecting block. The unlocking component includes a rotating sleeve that is rotatably mounted on the right side of the support sleeve. Multiple second wedge blocks are fixedly mounted from left to right at the upper and lower ends of the inner side of the rotating sleeve.

[0007] Furthermore, a second spring is fitted on the outer right side of the slide rod. One end of the second spring is fixedly connected to the support sleeve, and the other end of the second spring is fixedly connected to the second finger ring.

[0008] Furthermore, the support sleeve has an integral cavity on the left side, and the cavity contains fluorescent powder, which is located within a sealed design space.

[0009] Furthermore, the clearance holes integrally formed at both the front and rear ends on the right side inside the support sleeve are mirror-shaped, and the cross-sectional direction of the clearance holes is arc-shaped.

[0010] Furthermore, the outer side of the sliding pin inside the relief hole is fixedly connected to the rotating sleeve, and a third spring is provided inside the relief hole, with one end of the third spring fixedly connected to the sliding pin and the other end fixedly connected to the support sleeve.

[0011] Furthermore, the avoidance holes integrally formed at the upper and lower ends of the left side inside the support sleeve allow for rotational space after the clamping plate is unfolded, ensuring the normal rotational operation of the clamping plate.

[0012] Furthermore, a fourth spring fixed between the two clamping plates near the cam can unfold the clamping plates after they are closed.

[0013] Furthermore, the center of the cross-section of the slide bar and the center of the cross-section of the mounting sleeve are concentrically designed, thereby ensuring that the lateral displacement ball is always inside the guide groove.

[0014] Furthermore, the top of the first wedge block is designed with a slope, and the slope of the first wedge block is designed to be lower on the left and higher on the right.

[0015] Furthermore, the inclined surface of the second wedge block and the inclined surface of the first wedge block are designed to fit together face to face.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention, through its purely mechanical design, allows medical personnel to easily grasp and handle foreign objects in the throat by using this device, avoiding the failure rate of electronic components during use, reducing the workload of medical personnel, and ensuring the progress of foreign object grasping and extraction.

[0018] 2. This invention can lock the clamping force of foreign objects, preventing the clamping force from changing during the clamping and extraction process, which could cause the foreign objects to detach from the clamping components, thus ensuring the effectiveness of the device in clamping foreign objects. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the throat foreign body extraction clamp of the present invention;

[0021] Figure 2 This is a front sectional view of the throat foreign body extraction clamp of the present invention;

[0022] Figure 3 Side sectional view supporting him and the rotating sleeve;

[0023] Figure 4 A three-dimensional view of the support sleeve and the cavity;

[0024] Figure 5 This is a three-dimensional view of the internal structure of the throat foreign body extraction clamp of the present invention.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1-Support sleeve, 2-Mounting block, 3-First ring, 4-Drive assembly, 5-Clamping assembly, 6-Displacement assembly, 7-Unlocking assembly, 401-Slide rod, 402-Second ring, 501-Connecting pin, 502-Mounting sleeve, 503-Guide groove, 504-Ball, 505-Cam, 506-Mounting pin, 507-Clamping plate, 601-Connecting block, 602-First wedge block, 603-First spring, 701-Rotating sleeve, 702-Second wedge block, 8-Second spring, 9-Cavity, 10-Allowing hole, 11-Sliding pin, 12-Third spring, 13-Allowing hole, 14-Fourth spring. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, this device consists of a support sleeve 1, a mounting block 2 fixed on the left side inside the support sleeve 1, and a first finger ring 3 fixed at the upper and lower ends on the right side of the outer wall of the support sleeve 1. The drive assembly 4, which is slidably connected inside the support sleeve 1, can control the clamping assembly 5, which is rotated on the left side inside the support sleeve 1, to rotate. The displacement assembly 6, which is fixedly sleeved on the outer wall of the drive assembly 4, cooperates with the unlocking assembly 7, which is rotatedly sleeved on the right side of the outer wall of the support sleeve 1, to lock and unlock the clamping assembly 5 after it is closed.

[0030] The drive assembly 4 includes a slide rod 401 that slides laterally within the middle of the support sleeve 1. A second ring 402 is fixedly mounted on the right side of the slide rod 401. The clamping assembly 5 includes a connecting pin 501 that is rotatably disposed within the middle of the mounting block 2. A mounting sleeve 502 is fixedly mounted on the right side of the connecting pin 501. A spiral guide groove 503 is integrally formed inside the mounting sleeve 502. A ball bearing 504 is embedded in the end of the slide rod 401 away from the second ring 402 and is located on one side inside the guide groove 503. A cam 505 is fixedly mounted on the left side of the connecting pin 501. The mounting pins 506, which are connected to the upper and lower ends of the left side inside the support sleeve 1, are fixedly fitted with an arc-shaped clamping plate 507. The displacement component 6 includes a connecting block 601 fixedly fitted on the right side outside the slide rod 401. The inner side of the first wedge block 602, which is longitudinally slidable at the upper and lower ends inside the connecting block 601, is fixedly fitted with a first spring 603 between the inner side of the first wedge block 602 and the connecting block 601. The unlocking component 7 includes a rotating sleeve 701 rotatably fitted on the right side outside the support sleeve 1. The upper and lower ends of the inner side of the rotating sleeve 701 are fixedly fitted with a plurality of second wedge blocks 702 from left to right. The medical staff first inserts their right index and middle fingers into the first ring 3, then inserts their right thumb into the second ring 402. They then use their left hand to rotate the rotating sleeve 701 clockwise, causing it to displace the second wedge block 702 from the first wedge block 602. Next, they use their right thumb to push the second ring 402, causing it to move the sliding rod 401 and the ball bearing 504 to the left along the lateral direction of the support sleeve 1. This causes the ball bearing 504 to push the guide groove 503, along with the mounting sleeve 502, connecting pin 501, and cam 505, to rotate. The rotated cam 505 presses against the inner right end of the clamp 507, thus closing both clamps 507. The medical staff then moves the closed clamps 507 to the patient's throat area and resets the rotating sleeve 701 and sliding rod 401, allowing the clamps 507 to be unfolded within the patient's throat. Medical staff can then use the unfolded splint 507 to clamp the foreign object in the throat. They then push the second ring 402, causing it to move the slide bar 401 to the left. Because the first wedge block 602 and the second wedge block 702 are designed to be on the same plane, the slide bar 401, during its displacement, causes the connecting block 601, along with the inclined surface of the first wedge block 602, to exert pressure on the inclined surfaces of multiple second wedge blocks 702 from right to left. This causes the first wedge block 602, which has shifted laterally to the left, to repeatedly move into the connecting block 601, resulting in repeated deformation of the first spring 603. Furthermore, the vertical contact between the right side of the first wedge block 602 and the left side of the second wedge block 702 restricts the rightward movement of the first wedge block 602, ultimately locking the force with which the splint 507 clamps the foreign object.

[0031] Example 2

[0032] like Figure 4 , Figure 5 As shown, a second spring 8 is sleeved on the right side of the slide rod 401. One end of the second spring 8 is fixedly connected to the support sleeve 1, and the other end of the second spring 8 is fixedly connected to the second ring 402. A cavity 9 is integrally formed on the left side inside the support sleeve 1, and fluorescent powder is placed inside the cavity 9. The fluorescent powder inside the cavity 9 is in a sealed design space. The relief holes 10 integrally formed at both ends of the right side inside the support sleeve 1 are mirror-shaped, and the cross-sectional direction of the relief holes 10 is arc-shaped. The outer side of the sliding pin 11 inside the relief hole 10 is fixedly connected to the rotating sleeve 701. A third spring 12 is placed inside the relief hole 10. One end of the third spring 12 is fixedly connected to the sliding pin 11, and the other end is fixedly connected to the support sleeve 1. The left side of the support sleeve 1 is fixedly connected to the support sleeve 1. The clearance holes 13 integrated at both the upper and lower ends of the side allow for the rotation space of the clamping plate 507 after it is unfolded, ensuring the normal rotation of the clamping plate 507. The fourth spring 14 fixed between the two clamping plates 507 near the cam can unfold the clamping plate 507 after it is closed. The center of the cross section of the slide rod 401 and the center of the cross section of the mounting sleeve 502 are concentrically designed, thus ensuring that the lateral displacement ball 504 is always inside the guide groove 503. The top of the first wedge block 602 is designed with an inclined surface, and the inclined surface of the first wedge block 602 is designed to be lower on the left and higher on the right. The inclined surface of the second wedge block 702 and the inclined surface of the first wedge block 602 are designed to be in a state of mutual contact. According to the operating steps in Embodiment 1, when the splint 507 is moved to the patient's throat, the fluorescent powder inside the cavity 9 improves the clarity of the medical staff's view of the patient's oral cavity. When the medical staff pushes the slide bar 401 with their right thumb to close the splint 507, the second spring 8 and the fourth spring 14 are in a state of synchronous deformation. After the foreign object is removed from the patient's throat, the medical staff rotates the rotating sleeve 701 with their left hand, causing the rotating sleeve 701 to drive the sliding pin 11 and the second wedge block 702 to be misaligned with the first wedge block 602, and the third spring 12 to deform. At this time, the blocking force of the second wedge block 702 on the first wedge block 602 disappears. Through the rebound force of the second spring 8 and the fourth spring 14, the slide bar 401 and the splint 507 are reset, that is, the unfolded splint 507 drops the removed foreign object into the container of the prior art.

Claims

1. A foreign body extraction gripper for the throat, characterized in that: The guide rod is composed of a support sleeve (1), an installation block (2) fixed on the left side inside the support sleeve (1), and a first finger ring (3) fixed at the upper and lower ends on the right side of the outer wall of the support sleeve (1). The drive assembly (4) that slides horizontally inside the support sleeve (1) can control the clamping assembly (5) that rotates on the left side inside the support sleeve (1) to rotate. The displacement assembly (6) fixed on the outer wall of the drive assembly (4) cooperates with the unlocking assembly (7) that rotates on the right side outside the support sleeve to lock and unlock the clamping assembly (5) after it is closed. The drive assembly (4) includes a slide rod (401) that slides laterally to the middle of the support sleeve (1). A second ring (402) is fixedly provided on the right side of the slide rod (401). The clamping assembly (5) includes a connecting pin (501) that is rotatably disposed at the middle of the mounting block (2). A mounting sleeve (502) is fixedly provided on the right side of the connecting pin (501). A spiral guide groove (503) is integrally provided inside the mounting sleeve (502). A ball bearing (504) is embedded in the end of the slide rod (401) away from the second ring (402) and is located on one side inside the guide groove (503). A cam (504) is fixedly provided on the left side of the connecting pin (501). 05), the mounting pin (506) at the upper and lower ends of the left side of the support sleeve (1) is fixedly fitted with an arc-shaped clamping plate (507). The displacement component (6) includes a connecting block (601) fixedly fitted on the right side of the slide rod (401). The inner side of the first wedge block (602) at the upper and lower ends of the connecting block (601) is fixedly fitted with a first spring (603) between the inner side of the first wedge block (602) that slides longitudinally at the upper and lower ends of the connecting block (601) and the connecting block (601). The unlocking component (7) includes a rotating sleeve (701) rotatably fitted on the right side of the support sleeve (1). The upper and lower ends of the inner side of the rotating sleeve (701) are fixedly fitted with a plurality of second wedge blocks (702) from left to right.

2. The throat foreign body extraction clamp according to claim 1, characterized in that... A second spring (8) is sleeved on the right side of the slide rod (401). One end of the second spring (8) is fixedly connected to the support sleeve (1), and the other end of the second spring (8) is fixedly connected to the second finger ring (402).

3. The throat foreign body extraction clamp according to claim 1, characterized in that... The support sleeve (1) has an integral cavity (9) on the left side inside, and the cavity (9) contains fluorescent powder, which is located in a sealed design space.

4. The throat foreign body extraction clamp according to claim 1, characterized in that... The relief holes (10) integrally formed on the front and rear ends of the right side inside the support sleeve (1) are mirror-shaped, and the cross-sectional direction of the relief holes (10) is arc-shaped.

5. The pharyngeal foreign body extraction clamp according to claim 4, characterized in that... The outer side of the sliding pin (11) inside the relief hole (10) is fixedly connected to the rotating sleeve (701). A third spring (12) is provided inside the relief hole (10). One end of the third spring (12) is fixedly connected to the sliding pin (11) and the other end is fixedly connected to the support sleeve (1).

6. The pharyngeal foreign body extraction clamp according to claim 1, characterized in that... The avoidance holes (13) integrally provided on the upper and lower ends of the left side of the support sleeve (1) allow for the rotation space of the clamp (507) after it is unfolded, thus ensuring the normal rotation of the clamp (507).

7. The pharyngeal foreign body extraction clamp according to claim 1, characterized in that... The fourth spring (14) fixed between the two clamps (507) near the side of the cam (505) can unfold the clamps after they are closed.

8. The throat foreign body extraction clamp according to claim 1, characterized in that... The center of the cross section of the slide bar (401) and the center of the cross section of the mounting sleeve (502) are concentrically designed, thereby ensuring that the ball bearings for lateral displacement are always inside the guide groove (503).

9. The pharyngeal foreign body extraction clamp according to claim 1, characterized in that... The top of the first wedge (602) is designed with a slope, and the slope of the first wedge (602) is designed with the left side lower than the right side.

10. The pharyngeal foreign body extraction clamp according to claim 1, characterized in that... The inclined surface of the second wedge block (702) and the inclined surface of the first wedge block (602) are designed to fit together.

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