Headstock special for cardiac surgery

Abstract

A headstock special for cardiac surgery relates to the technical field of surgical medical auxiliary equipment, and is characterized in that a seat, a mounting rod and a movable base are connected in a hinged manner, a limiting rod serving as a shaft body is mounted at the joint of the mounting rod and the movable base, a rectangular mounting groove is formed in the upper end of a headstock main body, and a threaded driving rod is transversely mounted in the mounting groove; the two ends of the threaded driving rod penetrate into the portions, inside the mounting grooves, of the movable base correspondingly, the inner sides of the mounting grooves are in threaded meshing connection with the outer side of the threaded driving rod, the threaded driving rod is connected with the inner side of the inner extending rod through a rotating shaft, and one end of the ejector rod is in a sharp wedge shape and extends to make contact with the clamping and locking piece. The stabilizer can be in contact with one side of the clamping and locking piece, the clamping and locking piece is driven to rotate outwards, and one side of the sawtooth part is in contact with the inner wall of the stabilizer bar, so that the stabilizer bar is positioned and fixed through friction force, the stabilizer bar is kept in the contour state of the head of a patient, and the fixing effect of the head can be guaranteed after the stabilizer clamps the head of the patient from the two sides.

Description

Technical Field

[0001] This invention relates to the field of surgical medical auxiliary equipment technology, and more specifically, to a head frame specifically designed for cardiac surgery. Background Technology

[0002] A cardiac surgery head frame is a device specifically designed for cardiac surgery to fix and support the patient's head, ensuring stability and comfort during the procedure. Its support and fixation of the patient's head are crucial during surgery. Cardiac surgery often uses general anesthesia, which can cause displacement of the limbs, especially the head, making it difficult to properly insert tubes for equipment such as ventilators. Therefore, head fixation is necessary to ensure the precision and safety of the surgery. Existing cardiac surgery head frames, such as the one disclosed in CN113040941B, involve placing a primary fixation seat on the operating table. After adjusting the position of the primary fixation seat according to the patient's head position, the primary screw is turned using a first-hand screw, causing the primary rubber pads to abut against the left and right sides of the operating table. The patient's neck rests on the primary sponge pad, where the springs are compressed, generating a reaction force that provides counter-support to the neck. Under the action of the rotating shaft, the secondary fixation seat... The No. 1 sponge pad conforms to the curvature of the neck, reducing the burden on the patient's neck. Based on the position of the back of the patient's head, the motor is started, and the output shaft of the motor rotates, causing the No. 4 screw to rotate, which drives the No. 1 internal threaded tube to move, so that the No. 2 sponge pad is positioned at the back of the patient's head. Rotating the No. 5 screw, under the action of the limiting rod and the sleeve rod, causes the No. 2 internal threaded tube to move, which drives the No. 2 support plate to move, so that the No. 2 sponge pad conforms to the back of the patient's head. Rotating the No. 2 screw causes the No. 2 screw to move inward, fixing the No. 2 rubber pad on the No. 1 support plate to the cheek. However, existing head frames for cardiac surgery have limited effectiveness in fixing the patient's head and cover a large area. When the clamping force is too small, the fixation effect is poor, and when the clamping force is too large, it is easy to cause skin damage. Therefore, further improvements to the head frame are needed. Summary of the Invention

[0003] The present invention aims to solve the technical problems of limited fixation effect on the patient's face and difficulty in adjusting the clamping force in the prior art.

[0004] The objectives and effects of this invention are achieved by the following specific technical means: A head frame for cardiac surgery includes a head frame body. A stabilizer is mounted on the upper end of the head frame body, with two stabilizers symmetrically arranged on the head frame body. Mounting rods are provided on both sides of the stabilizer, and each mounting rod extends downwards to connect to a movable base. The mounting rods and movable bases are connected by a hinge, and a limit rod is installed at the connection point between the mounting rod and the movable base as a shaft. A rectangular mounting groove is provided on the upper end of the head frame body, and a threaded drive rod is horizontally mounted inside the mounting groove. Both ends of the threaded drive rod pass through the movable base inside the mounting groove, and the inner side of the mounting groove and the outer side of the threaded drive rod are threadedly engaged. The threads at both ends of the threaded drive rod have opposite rotation directions. A drive motor is installed in the middle of the head frame body. A stabilizing rod is mounted on one side of the stabilizer, and multiple stabilizing rods are evenly and equidistantly distributed on the stabilizer. One end is equipped with a rubber pad, and the other end extends into the stabilizer. The stabilizer has a cavity inside for the stabilizer rod to move inward. A spring is installed inside the stabilizer corresponding to one end of the stabilizer rod. The end of the stabilizer rod that extends into the stabilizer is hollow. An inner extension rod is installed inside the stabilizer that enters the stabilizer rod. The spring is located on the outside of the inner extension rod. A pressing plate is installed on the outside of the stabilizer opposite to the stabilizer rod. The pressing plate is circular and has a top rod on the side facing the stabilizer. The top rod passes through the inner extension rod. A locking piece is installed at one end of the inner extension rod that enters the stabilizer rod. One side of the locking piece is inclined inward towards the inner extension rod, and the other side has a serrated part. A rotating shaft is installed at one end of the locking piece. A cleaning plate is installed on the upper end of the head frame body corresponding to the moving base. A cleaning groove is provided at the upper end of the cleaning plate.

[0005] Furthermore, the movable base is a rectangular frame with an opening at the top, and the lower end of the movable base enters the mounting groove.

[0006] Furthermore, a drive gear is installed at one end of the drive motor and is engaged with the outer part of the middle end of the threaded drive rod, and a headrest pad is installed at the upper middle part of the head frame body.

[0007] Furthermore, the stabilizer bar has a rectangular gap at the center of the stabilizer.

[0008] Furthermore, the locking piece is connected to the inner side of the inner extension rod via a rotating shaft, and one end of the top rod is wedge-shaped and extends to contact the locking piece.

[0009] Furthermore, locking rods are installed at the upper and lower ends of the stabilizer. The end of the locking rod that enters the stabilizer is inclined, and a return spring is installed on the outside of the locking rod. Furthermore, the upper and lower ends of the pressing plate are provided with insert rods, which extend into the stabilizer and extend to one end of the locking rod. The insert rods are provided with grooves on the side facing the locking rod.

[0010] Furthermore, the mounting rod has slots on the upper and lower sides corresponding to the limiting rod inside, and the upper end of the movable base also has slots on the upper and lower sides corresponding to the limiting rod inside. An extension piece is connected to the outer side of the limiting rod, and the extension piece enters the slots of the mounting rod and the movable base respectively.

[0011] Beneficial effects: A head frame specifically designed for cardiac surgery has the following beneficial effects: 1. A stabilizing rod is installed on one side of the stabilizer. Multiple stabilizing rods are evenly distributed on the stabilizer, but a rectangular gap is left in the center of the stabilizer. One end of the stabilizing rod is equipped with a rubber pad, and the other end extends into the stabilizer. There is a cavity inside the stabilizer for the stabilizing rod to move inward. A spring is installed inside the stabilizer corresponding to one end of the stabilizing rod. When the stabilizing rod contacts the outside of the patient's head, it can compress the spring and retract into the stabilizer. The extension length of the stabilizing rod allows the whole to form the shape of the patient's head contour.

[0012] 2. The stabilizer has a hollow end that extends into the stabilizer. Inside the stabilizer is an inner extension rod that enters the stabilizer. A spring is located on the outside of the inner extension rod. Inside the stabilizer, on the other side opposite the stabilizer, there is a circular pressing plate. A push rod is located on the side facing the stabilizer and passes through the inner extension rod. A locking piece is installed at the end of the inner extension rod that enters the stabilizer. One side of the locking piece is inclined inwards towards the inner extension rod, while the other side has a serrated part. A rotating shaft is installed at one end of the locking piece and is connected to the inside of the inner extension rod through the rotating shaft. One end of the push rod is wedge-shaped and extends to contact the locking piece. When the pressing plate moves the push rod into the inner extension rod, it contacts one side of the locking piece, causing the locking piece to rotate outwards. This allows one side of the serrated part to contact the inner wall of the stabilizer, thereby using friction to position and fix the stabilizer rod, keeping it in the shape of the patient's head contour. Furthermore, when the stabilizer clamps the patient's head from both sides, it ensures the head is fixed.

[0013] 3. A cleaning plate is installed on the upper part of the head frame body corresponding to the upper part of the movable base. The upper part of the cleaning plate has a cleaning groove. The mounting rod has slots on the upper and lower sides corresponding to the limiting rod. The upper part of the movable base also has slots on the upper and lower sides corresponding to the limiting rod. An extension piece is connected to the outer side of the limiting rod, and the extension piece enters the slots of the mounting rod and the movable base respectively. After a surgery is completed, the limiting rod can be pressed to move the limiting rod inward. When the limiting rod moves inward, the outer extension piece enters the inner side of the mounting rod, allowing the mounting rod to rotate downward. This allows the stabilizer to drive the stabilizer rod into the cleaning plate. Then, cleaning fluid is poured into the cleaning plate for cleaning, making it convenient for the next use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall external structure of the present invention.

[0015] Figure 2 This is a cross-sectional schematic diagram of the head frame body of the present invention.

[0016] Figure 3 This is a side view of the stabilizer of the present invention.

[0017] Figure 4 For the present invention Figure 3 Enlarged diagram of point A in the middle.

[0018] Figure 5 This is a schematic diagram of the internal cross-section of the stabilizer of the present invention.

[0019] Figure 6 For the present invention Figure 5 Enlarged diagram of point B in the middle.

[0020] Figure 7 For the present invention Figure 5 Enlarged diagram of point C in the middle.

[0021] Figure 1-7 In the middle: 1-Headrest body, 101-Headrest pad, 102-Mounting slot, 2-Stabilizer, 3-Stabilizer bar, 301-Rubber pad, 4-Mounting rod, 5-Moving base, 6-Limiting rod, 601-Extension plate, 7-Cleaning plate, 8-Pressing plate, 801-Insertion rod, 802-Top rod, 9-Locking rod, 10-Drive motor, 11-Threaded drive rod, 12-Slot, 13-Inner extension rod, 1301-Rotating shaft, 1302-Locking plate, 14-Spring. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] Reference Figure 1-7 A schematic diagram of the exploded structure and a schematic diagram of the planar structure of a head frame specifically designed for cardiac surgery. A head frame for cardiac surgery includes a head frame body 1. A stabilizer 2 is mounted on the upper end of the head frame body 1. The stabilizer 2 is circular, and two are symmetrically arranged on the head frame body 1. Mounting rods 4 are located on both sides of the stabilizer 2. The mounting rods 4 extend downwards and connect to movable bases 5. The movable bases 5 are rectangular frames with an open top. The mounting rods 4 and movable bases 5 are connected by a hinge. A limit rod 6 is installed at the connection point between the mounting rods 4 and movable bases 5 as a shaft. Two rectangular mounting slots 102 are symmetrically arranged on the upper end of the head frame body 1. The lower end of the movable base 5 enters the interior of the mounting groove 102. A threaded drive rod 11 is horizontally installed inside the mounting groove 102. Both ends of the threaded drive rod 11 pass through the interior of the movable base 5 inside the mounting groove 102. The inner side of the mounting groove 102 is threadedly engaged with the outer side of the threaded drive rod 11. The threads at both ends of the threaded drive rod 11 rotate in opposite directions. A drive motor 10 is installed in the middle of the head frame body 1. A drive gear is installed at one end of the drive motor 10 and is engaged with the outer side of the middle end of the threaded drive rod 11. A headrest pad 101 is installed at the upper middle part of the head frame body 1. In specific implementation, a stabilizer rod 3 is installed on one side of the stabilizer 2. Multiple stabilizer rods 3 are evenly and equidistantly distributed on the stabilizer 2, but a rectangular gap is left in the center of the stabilizer 2. A rubber pad 301 is provided at one end of the stabilizer rod 3, and the other end extends into the interior of the stabilizer 2. A cavity is left inside the stabilizer 2 for the stabilizer rod 3 to move inward. A spring 14 is installed inside the stabilizer 2 corresponding to one end of the stabilizer rod 3. In specific implementation, the end of the stabilizer bar 3 that extends into the stabilizer 2 is hollow. The stabilizer 2 is provided with an inner extension bar 13 that enters the interior of the stabilizer bar 3. The spring 14 is provided on the outside of the inner extension bar 13. The stabilizer 2 is equipped with a pressing plate 8 on the other side of the stabilizer 2 opposite to the stabilizer bar 3. The pressing plate 8 is circular. A top rod 802 is provided on the side facing the stabilizer 2. The top rod 802 passes into the interior of the inner extension bar 13. A locking piece 1302 is installed at the end of the inner extension bar 13 that enters the interior of the stabilizer bar 3. One side of the locking piece 1302 is inclined towards the interior of the inner extension bar 13, while the other side is provided with a serrated part. A rotating shaft 1301 is installed at one end of the locking piece 1302 and is connected to the inside of the inner extension bar 13 through the rotating shaft 1301. One end of the top rod 802 is wedge-shaped and extends to contact the locking piece 1302. In specific implementation, locking rods 9 are installed at the upper and lower ends of the stabilizer 2. The end of the locking rod 9 that enters the interior of the stabilizer 2 is inclined, and a return spring is installed on the outside of the locking rod 9. Insert rods 801 are provided at the upper and lower ends of the pressing plate 8. Insert rods 801 extend into the interior of the stabilizer 2 and extend to one end of the locking rod 9. A groove is provided on the side of the insert rod 801 facing the locking rod 9. In specific implementation, a cleaning plate 7 is installed on the upper end of the head frame body 1 corresponding to the upper end of the movable base 5. The upper end of the cleaning plate 7 is provided with a cleaning groove. The mounting rod 4 is provided with slots 12 on the upper and lower sides corresponding to the limiting rod 6. The upper end of the movable base 5 is also provided with slots 12 on the upper and lower sides corresponding to the limiting rod 6. An extension piece 601 is connected to the outer side of the limiting rod 6, and the extension piece 601 enters the slots 12 of the mounting rod 4 and the movable base 5 respectively.

[0024] Working principle: Mounting rods 4 are provided on both sides of the stabilizer 2. The mounting rods 4 extend downwards and connect to the movable base 5. The movable base 5 is a rectangular frame with an open top. The mounting rods 4 and the movable base 5 are connected by a hinge. A limit rod 6 is installed at the connection between the mounting rods 4 and the movable base 5 as a shaft. The upper end of the head frame body 1 is provided with rectangular mounting grooves 102, and two are symmetrically arranged. The lower end of the movable base 5 enters the interior of the mounting groove 102. A threaded drive rod 11 is horizontally installed inside the mounting groove 102. The two ends of the threaded drive rod 11 pass through the interior of the movable base 5 inside the mounting groove 102, and the inner side of the mounting groove 102 is threadedly engaged with the outer side of the threaded drive rod 11. The threads at the two outer ends of the threaded drive rod 11 rotate in opposite directions. A drive motor 10 is installed in the middle of the head frame body 1. One end of the drive motor 10 is equipped with a drive gear, which meshes with the outer part of the middle of the threaded drive rod 11. A headrest pad 101 is installed at the upper middle part of the head frame body 1. When the patient's head is placed on the headrest pad 101, the drive motor 10 is activated, causing the threaded drive rod 11 to move the movable bases 5 and stabilizers 2 on both sides towards the middle to contact the sides of the patient's head and achieve a fixing effect. A stabilizing rod 3 is installed on one side of the stabilizer 2. Multiple stabilizing rods 3 are evenly distributed on the stabilizer 2, but a rectangular gap is left in the center of the stabilizer 2. One end of the stabilizing rod 3 is equipped with a rubber pad 301, and the other end extends into the interior of the stabilizer 2. The interior of the stabilizer 2 has space for the stabilizing rods 3. The inward-moving cavity contains a spring 14 installed at one end of the stabilizer rod 3 inside the stabilizer 2. When the stabilizer rod 3 contacts the outside of the patient's head, it compresses the spring 14 and retracts it into the stabilizer 2. The extension length of the stabilizer rod 3 allows the entire structure to form the shape of the patient's head. The end of the stabilizer rod 3 that extends into the stabilizer 2 is hollow. An inner extension rod 13 that enters the stabilizer rod 3 is installed inside the stabilizer 2. The spring 14 is located on the outside of the inner extension rod 13. A pressing plate 8 is installed on the other side of the stabilizer 2 opposite to the stabilizer rod 3. The pressing plate 8 is circular. A top rod 802 is located on the side facing the stabilizer 2. The top rod 802 passes through the inner extension rod 13. The end of the inner extension rod 13 that enters the stabilizer rod 3... A locking plate 1302 is installed, with one side of the locking plate 1302 inclined inwards towards the inner extension rod 13, and the other side having a serrated portion. A rotating shaft 1301 is installed at one end of the locking plate 1302, and it is connected to the inner side of the inner extension rod 13 through the rotating shaft 1301. One end of the push rod 802 is wedge-shaped and extends to contact the locking plate 1302. When the pressing plate 8 drives the push rod 802 into the inner extension rod 13, it will contact one side of the locking plate 1302, thereby driving the locking plate 1302 to rotate outwards, so that one side of the serrated portion contacts the inner wall of the stabilizing rod 3. This uses friction to position and fix the stabilizing rod 3, keeping it in the shape of the patient's head contour. Moreover, when the stabilizer 2 clamps the patient's head from both sides, the head fixation effect is guaranteed.Next, locking rods 9 are installed at the upper and lower ends of the stabilizer 2. The end of the locking rod 9 that enters the stabilizer 2 is inclined, and a return spring is installed on the outside of the locking rod 9. Insert rods 801 are provided at the upper and lower ends of the pressing plate 8. The insert rods 801 extend into the stabilizer 2 and extend to one end of the locking rod 9. The side of the insert rod 801 facing the locking rod 9 is provided with a groove. When the pressing plate 8 is moved to one side of the stabilizer 2, the insert rod 801 can contact the locking rod 9 to complete the locking state. Then, a cleaning plate 7 is installed on the upper end of the moving base 5 on the outside of the head frame body 1. The cleaning plate 7 is provided with a cleaning groove on its upper end. The rod 4 has slots 12 on its upper and lower sides corresponding to the limiting rod 6. The upper end of the movable base 5 also has slots 12 on its upper and lower sides corresponding to the limiting rod 6. An extension piece 601 is connected to the outer side of the limiting rod 6, and the extension piece 601 enters the slots 12 of both the mounting rod 4 and the movable base 5. After one operation, pressing the limiting rod 6 causes it to move inward, allowing the outer extension piece 601 to enter the inner side of the mounting rod 4, enabling the mounting rod 4 to rotate downwards. This allows the stabilizer 2 to drive the stabilizer rod 3 into the cleaning plate 7. Cleaning fluid is then poured into the cleaning plate 7 for cleaning, facilitating the next use.

Claims

1. A head frame for cardiac surgery, comprising a head frame body (1), characterized in that, A stabilizer (2) is installed on the upper end of the head frame body (1). Two stabilizers (2) are symmetrically arranged on the head frame body (1). Mounting rods (4) are provided on both sides of the stabilizers (2). The mounting rods (4) extend downward and are connected to a movable base (5). The mounting rods (4) and the movable base (5) are connected by a hinge. A limit rod (6) is installed at the connection between the mounting rods (4) and the movable base (5) as a shaft. A rectangular mounting groove (102) is provided on the upper end of the head frame body (1). A threaded drive rod (11) is installed horizontally inside the mounting groove (102). The two ends of the threaded drive rod (11) are respectively inserted into the movable drive rod inside the mounting groove (102). The base (5) is inside and the inner side of the mounting groove (102) is threadedly engaged with the outer side of the threaded drive rod (11). The threads at both ends of the threaded drive rod (11) are in opposite rotation directions. The head frame body (1) is equipped with a drive motor (10) in the middle. The stabilizer (2) is equipped with a stabilizer rod (3) on one side. The stabilizer rod (3) is evenly distributed on the stabilizer (2). One end of the stabilizer rod (3) is equipped with a rubber pad (301), and the other end extends into the stabilizer (2). The stabilizer (2) has a cavity for the stabilizer rod (3) to move inward. A spring (14) is installed at one end of the stabilizer (2) corresponding to the stabilizer rod (3). The stabilizer bar (3) has a hollow end that extends into the stabilizer (2). An inner extension rod (13) is installed inside the stabilizer (2) and enters the stabilizer bar (3). A spring (14) is located outside the inner extension rod (13). A pressing plate (8) is installed inside the stabilizer (2) on the other side opposite to the stabilizer bar (3). A top rod (802) is provided on the side of the pressing plate (8) facing the stabilizer (2). 2) Insert into the interior of the inner extension rod (13). One end of the inner extension rod (13) that enters the interior of the stabilizer rod (3) is equipped with a locking piece (1302). One side of the locking piece (1302) is inclined towards the interior of the inner extension rod (13), while the other side is provided with a serrated part. One end of the locking piece (1302) is equipped with a rotating shaft (1301). The upper end of the head frame body (1) corresponding to the upper end of the movable base (5) is equipped with a cleaning plate (7). The upper end of the cleaning plate (7) is provided with a cleaning groove.

2. The head frame for cardiac surgery as described in claim 1, characterized in that, Locking rods (9) are installed at the upper and lower ends of the stabilizer (2). The end of the locking rod (9) that enters the stabilizer (2) is inclined, and a return spring is installed on the outside of the locking rod (9).

3. The head frame for cardiac surgery as described in claim 2, characterized in that, The upper and lower ends of the pressing plate (8) are provided with insert rods (801). The insert rods (801) extend into the stabilizer (2) and extend to one end of the locking rod (9). The insert rods (801) are provided with grooves on the side facing the locking rod (9).

4. The head frame for cardiac surgery as described in claim 1, characterized in that, The movable base (5) is a rectangular frame with an opening at the top. The lower end of the movable base (5) enters the mounting groove (102). One end of the drive motor (10) is equipped with a drive gear, which is engaged with the outer part of the middle end of the threaded drive rod (11).

5. A head frame for cardiac surgery as described in claim 1, characterized in that, A headrest pad (101) is installed at the upper middle part of the head frame body (1).

6. The head frame for cardiac surgery as described in claim 1, characterized in that, The locking piece (1302) is connected to the inner side of the inner extension rod (13) via a rotating shaft (1301), and one end of the top rod (802) is wedge-shaped and extends to contact the locking piece (1302).

7. The head frame for cardiac surgery as described in claim 1, characterized in that, The mounting rod (4) has slots (12) on the upper and lower sides corresponding to the limiting rod (6) inside, and the upper end of the movable base (5) also has slots (12) on the upper and lower sides corresponding to the limiting rod (6).

8. A head frame for cardiac surgery as described in claim 7, characterized in that, The outer side of the limiting rod (6) is connected to an extension piece (601), and the extension piece (601) enters the slot (12) of the mounting rod (4) and the movable base (5) respectively.

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