CN222172597U - Easy-to-adjust head support for operating tables - Google Patents

Abstract

The utility model provides a head support device for an operating table, which comprises a fixing device, a distance adjusting mechanism and a head support, wherein the fixing device comprises a first 匚 type clamp connected with fixing columns on two sides of the operating table respectively, a fixing seat arranged at the lower end of the first 匚 type clamp, a fixing frame is arranged in the fixing seat in a sliding mode, the distance adjusting mechanism is used for adjusting the sliding position of the fixing frame on the fixing seat, the head support comprises a second 匚 type clamp connected with two sides of the fixing frame, a support column arranged at the upper end of the second 匚 type clamp and a head support connecting rod rotatably connected with the upper end of the support column, and the angle adjusting mechanism is used for adjusting the elevation angle of the head support. The utility model can adjust the distance between the head support and the operating table, so that the head support is suitable for patients with different sizes, a doctor can finely adjust the elevation angle of the head of the patient according to the operation requirement, the operation position is more accurate, the operation preparation time is reduced, the operation efficiency of the doctor is improved, the device is detachable, the use of the existing operating table is not affected, the disassembly is convenient, and the practicability is strong.

Description

Head support device convenient to adjust for operating bed

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a head supporting device for an operating table, which is convenient to adjust.

Background

In clinical surgery, some operations often require patients to take prone positions, such as post-cervical exposure, lumbar and back operations. In prone position operation of patients, a head support is usually arranged below the head position of the patients and used for supporting and limiting the head or the face, so that the patients can breathe conveniently and can be externally connected with an oxygen tube or an intubation tube.

At present, in the operation preparation process, the interval between the head rest and the operation table needs to be adjusted, so that the shoulder of a patient can stably fall on the operation table and the head can naturally be lapped on the head rest, the shoulder of the patient is prevented from falling empty, the neck and the head of the patient are excessively pulled, the comfort and the safety of the patient are ensured, but the existing prone position head rest is often only clamped or fixed at the head position of the operation table, and the interval between the head rest and the operation table is inconvenient to adjust.

Secondly, for the posterior operation of the cervical vertebra and the lumbar vertebra, the head of the patient is required to be inclined forwards, the cervical vertebra or the lumbar vertebra is in a straightening position, and the cervical vertebra and the lumbar vertebra are both in physiological front bulge when in a natural state, so that in order to fully expose the operation vision, the cervical vertebra and the lumbar vertebra are required to be in the straightening position by adjusting the elevation angle of the head, so that the operation vision of a doctor is enlarged, and the operation is convenient. However, the existing prone position head rest cannot assist in adjusting the elevation angle of the head of a patient, so that the operation preparation time is prolonged, the operation field is reduced, the operation of a doctor is not facilitated, and the practicability of the existing head rest in the operation is poor.

In view of the foregoing, there is a need to design a convenient-to-adjust head restraint for operating tables that overcomes the above-mentioned problems.

Disclosure of utility model

The utility model aims to provide the head support device for the operating table, which is convenient to adjust the distance between the head support device and the operating table, can assist in adjusting the elevation angle of the head of a patient and enlarge the operation vision.

In order to achieve the above purpose, the utility model adopts the technical proposal that the head support device for the operating bed, which is convenient for adjustment, comprises:

The fixing device comprises a first 匚 type clamp connected with fixing columns on two sides of the operating table respectively and a fixing seat arranged at the lower end of the first 匚 type clamp and positioned at the lower end of the operating table, and a fixing frame is arranged in the fixing seat in a sliding manner along the length direction of the operating table;

The interval adjusting mechanism is arranged between the fixed seat and the fixed frame and is used for adjusting the sliding position of the fixed frame on the fixed seat;

the head support is arranged at the upper end of the fixing frame and positioned at the outer side of the operation bed head board;

The head support supporting device comprises a second 匚 type clamp connected with two sides of the fixing frame, a support column arranged at the upper end of the second 匚 type clamp and a head support connecting rod rotatably connected with the upper ends of the support columns, and the other ends of the two head support connecting rods are fixedly connected with the head support;

The angle adjusting mechanism is arranged between the head support connecting rod and the support column and is used for adjusting the elevation angle of the head support.

The aim and the technical problems of the utility model can be further realized by adopting the following technical measures.

Further, the fixing seat is provided with a sliding hole along the length direction of the operating table, and the fixing frame is arranged in the sliding hole in a sliding way;

The fixed seat at the lower end of the sliding hole is provided with a groove communicated with the sliding hole, the interval adjusting mechanism comprises a transmission shaft, transmission gears and racks, the transmission shafts are rotatably arranged on the left side wall and the right side wall of the groove, the transmission gears are fixedly arranged on the two sides of the transmission shaft in a penetrating mode, the racks are arranged on the two sides of the lower end of the fixed frame and are in meshed connection with the transmission gears, and any one end of the transmission shaft penetrates out of the side wall of the fixed seat to be fixedly connected with the first crank.

Further, a first fastening bolt is arranged at one side, far away from the fixing seat, of the lower end of the first 匚 type clamping hoop in a penetrating mode.

Further, a cavity is formed in the upper end of the support column, a first rotating shaft is rotatably connected to the left side wall and the right side wall of the upper end of the cavity, and one end, close to the head rest, of the first rotating shaft penetrates out of the support column and is fixedly connected with the head rest connecting rod;

The angle adjusting mechanism comprises a first gear fixedly penetrating through the first rotating shaft and a second gear which is arranged in the cavity and meshed with the first gear mutually, the second gear is rotationally connected to the left side wall and the right side wall of the cavity through a second rotating shaft, and one end, far away from the head rest, of the second rotating shaft penetrates out of the supporting column and is connected with a second hand crank.

Further, the support column is the telescopic link, and it cup joints through two sections sleeves and forms, and outer telescopic upper end lateral wall wears to be equipped with positioning bolt.

Further, locking mechanisms are arranged between the first hand crank and the fixed seat and between the second hand crank and the support column.

Further, the locking mechanism comprises a sleeve, a pull rod, a tooth block and a pull ring, wherein the sleeve is respectively fixed on the side walls of the first hand crank and the second hand crank, the pull rod is inserted in the sleeve in a sliding manner, the tooth block and the pull ring are respectively arranged at two ends of the pull rod, annular racks are respectively arranged on the side walls of the fixed seat and the support column, the circle centers of the annular racks are coincident with the axes of the first hand crank and the second hand crank, and the tooth block is meshed with the annular racks;

The sleeve is internally provided with a spring, the spring is sleeved on the outer wall of the pull rod, and two ends of the spring are respectively and fixedly connected with the inside of the sleeve and the tooth block.

Further, a second fastening bolt is arranged at the lower end of the second 匚 -type clamp in a penetrating mode.

Further, the head rest comprises a head rest support seat connected with the head rest connecting rod and a support pad arranged at the upper end of the head rest support seat, a through hole exposing eyes, noses and mouths is formed in the head rest, and a notch communicated with the through hole is formed in one side of the head rest, close to the operating table.

Further, two elastic soft bags are arranged in the through holes at corresponding positions of the two eyes.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the head support device for the operating table, which is convenient to adjust, the fixing device is arranged, the head support can be connected with the existing operating table, the fixing frame is arranged on the fixing seat in a sliding mode, the upper end of the fixing frame is connected with the head support device through the head support connector, and the sliding position of the fixing frame on the fixing seat is adjusted through the interval adjusting mechanism, so that the interval between the head support and the operating table can be adjusted, the head support is suitable for patients of different sizes, and the comfort level of the patients is improved.

2. According to the head support device for the operating table, which is convenient to adjust, the head support is rotatably connected to the upper end of the support column through the head support rod, and the rotating angle of the head support is controlled through the angle adjusting mechanism, namely, a doctor can adjust the elevation angle of the head of a patient according to the operation requirement, so that the operation position is more accurate, the operation preparation time is shortened, the practicability is strong, and the operation efficiency of the doctor is improved.

3. According to the head supporting device for the operating table, the sliding position of the fixing frame in the fixing seat is controlled by rotating the first hand crank, and the rack is driven by the gear to drive the rack to slide slowly in the sliding hole of the fixing seat, so that the distance between the head support and the operating table can be finely adjusted, the distance between the head support and the operating table is more accurate, a patient is more comfortable, the operation time can be effectively reduced, and the operation efficiency is improved.

4. According to the head supporting device for the operating table, the rotation angle of the head support is controlled by rotating the second hand crank, so that the elevation angle of the head of a patient is adjusted according to the operation requirement, the head supporting device is driven to be adjusted through gear transmission, the adjustment is more stable and accurate, fine adjustment can be achieved, the practicability is high, the operation accuracy is greatly improved, and the cervical vertebra of the patient can be protected from injury.

5. According to the head support device for the operating table, the head support and the head support device are fixed on two sides of the upper end of the fixing frame through the second 匚 type clamp, when a patient does not need to lie prone in operation, the second 匚 type clamp, the head support and the head support device can be integrally detached from the fixing frame, most of the fixing frame can be slid to the lower end of the operating table, or the first 匚 type clamp, the fixing device, the head support and the head support device can be integrally detached, the two detaching modes do not affect the use of the existing operating table, and the head support device is convenient to detach and improves practicality.

6. According to the head supporting device for the operating table, which is convenient to adjust, the locking mechanism is arranged, so that a doctor or an assistant can be effectively prevented from carelessly touching the first crank or the second crank to shake the head of a patient, and the safety of the device in the use process is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a head support device for an operating table, which is convenient to adjust;

FIG. 2 is a schematic front cross-sectional view of a connection between a fixing base and a fixing frame according to an embodiment of the present utility model;

FIG. 3 is a schematic side sectional view of a connection portion between a fixing base and a fixing frame according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a connection between a support post and a head rest connecting rod according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a locking mechanism in an embodiment of the utility model;

Reference numerals illustrate:

1. A fixing device; 11, a first 匚 type clamp, 12, a fixed seat, 121, a sliding hole, 122, a groove, 13, a fixed frame, 14 and a first fastening bolt;

2. a spacing adjustment mechanism; 21, a transmission shaft, 22, a transmission gear, 23, a rack, 24 and a first hand crank;

3. the head rest, 31, a side protection pad, 32, a head rest support, 33, a support pad, 34, a through hole, 341, an elastic soft bag, 35 and a notch;

4. The head support device comprises a head support supporting device, a 41 second 匚 type clamp, a 42 supporting column, a 421 cavity, a 422 positioning bolt, a 43 head support connecting rod, a 44 first rotating shaft, a 45 second fastening bolt;

5. The device comprises an angle adjusting mechanism, a first gear, a second rotating shaft, a second crank and a second rotating shaft, wherein the angle adjusting mechanism comprises a first gear, a second rotating shaft, a second crank and a first crank;

6. The locking mechanism comprises a locking mechanism body 61, a sleeve body 62, a pull rod 63, a tooth block 64, a pull ring 65, an annular rack 66 and a spring.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 5, a head support device for an operating table, which is convenient to adjust, includes:

The fixing device 1 comprises a first 匚 type clamp 11 and a fixing seat 12, wherein the first 匚 type clamp 11 is respectively connected with fixing columns on two sides of an operating table, the fixing seat 12 is arranged at the lower end of the first 匚 type clamp 11 and is positioned at the lower end of the operating table, and a fixing frame 13 is arranged in the fixing seat 12 in a sliding manner along the length direction of the operating table;

The interval adjusting mechanism 2 is arranged between the fixed seat 12 and the fixed seat 13 and is used for adjusting the sliding position of the fixed seat 13 on the fixed seat 12;

A head rest 3 which is arranged at the upper end of the fixing frame 13 and is positioned at the outer side of the operation bedside board, namely at the outer side of one side of the operation bedside board;

The head support supporting device 4 comprises a second 匚 type clamp 41 connected with two sides of the fixed frame 13, a support column 42 arranged at the upper end of the second 匚 type clamp 41 and a head support connecting rod 43 rotatably connected with the upper end of the support column 42, wherein the other ends of the two head support connecting rods 43 are fixedly connected with the head support 3;

And an angle adjusting mechanism 5, which is arranged between the head rest connecting rod 43 and the support column 42, and is used for adjusting the elevation angle of the head rest 3.

In the utility model, the head rest 3 is fixed at the upper end of the fixed frame 13 through the head rest supporting device 4, and the sliding position of the fixed frame 13 on the fixed seat 12 is regulated through the interval regulating mechanism 2, so that the purpose of regulating the interval between the head rest 3 and an operating table can be realized, the head rest is suitable for patients with different body types or more accords with the operation requirement of doctors, the head rest 3 is rotationally connected at the upper end of the supporting column 42 through the head rest connecting rod 43, and the doctors can regulate the rotation angle of the head rest connecting rod 43 on the supporting column 42 according to the operation requirement, thereby not only regulating the head elevation angle of the patients, but also ensuring that the operation position more accords with the requirement.

Preferably, as shown in fig. 1, 2 and 3, the fixing base 12 is provided with a sliding hole 121 along the length direction of the operating table, and the fixing frame 13 is slidably disposed in the sliding hole 121;

The fixed seat 12 at the lower end of the sliding hole 121 is provided with a groove 122 communicated with the sliding hole 121, the interval adjusting mechanism 2 comprises a transmission shaft 21 rotatably arranged on the left side wall and the right side wall of the groove 122, transmission gears 22 fixedly penetrating through two sides of the transmission shaft 21, and racks 23 arranged on two sides of the lower end of the fixed frame 13, the racks 23 are in meshed connection with the transmission gears 22, and any end of the transmission shaft 21 penetrates out of the side wall of the fixed seat 12 to be fixedly connected with the first hand crank 24.

In this embodiment, the doctor can drive rack 23 to slide through clockwise or anticlockwise rotatory first hand crank 24, two drive gear 22 on the first hand crank 24 to drive mount 13 and slide along operating table length direction in fixing base 12, and then realize adjusting head rest 3 and the effect of operating table head of a bed interval, and can finely adjust the interval of two, make the two interval more accurate, make the patient more comfortable, effectively reduce operation duration, improve operation efficiency. It should be noted that, the fixing frame 13 is preferably a hollow square fixing frame formed by welding four steel frames, on one hand, the structure of the interval adjusting mechanism 2 is not affected, on the other hand, the lower end of the head rest 3 is hollow, so that an anesthesiologist can conveniently inhale phlegm for a patient from the lower side of the head rest 3.

Preferably, a first fastening bolt 14 is disposed on a side of the lower end of the first 匚 type clamping band 11 away from the fixing base 12. The first 匚 -type clamp 11 is gradually clamped into two sides of the fixing column of the surgical bed from one end of the surgical bed head board, and the first fastening bolt 14 is screwed down, so that the fixing column is abutted to the top end of the first fastening bolt 14, and then the fixing is completed.

Preferably, as shown in fig. 4, a cavity 421 is formed in the upper end of the support column 42, the left and right side walls of the upper end of the cavity 421 are rotatably connected with a first rotating shaft 44, and one end of the first rotating shaft 44, which is close to the head rest 3, passes through the support column 42 and is fixedly connected with the head rest connecting rod 43;

The angle adjusting mechanism 5 includes a first gear 51 fixedly penetrating the first rotating shaft 44, and a second gear 52 disposed in the cavity 421 and meshed with the first gear 51, the second gear 52 is rotatably connected to the left and right side walls of the cavity 421 through a second rotating shaft 53, and one end of the second rotating shaft 53, which is far away from the head rest 3, penetrates out of the support column 42 and is connected to a second crank 54.

In this embodiment, drive first gear 51 rotation through rotatory second hand crank 54, first gear 51 can drive second gear 52 rotation, second gear 52 can drive the rotation of second pivot 53 again, and then make head support connecting rod 43 and head support 3 rotate together, realize the regulation of patient's head elevation angle, gear drive adjusts more stably, accurately, can realize fine setting, not only the practicality is strong, has improved the operation accuracy greatly, can protect patient's cervical vertebra to avoid injury moreover.

In order to facilitate the adjustment of the head height of the patient during the operation, the support column 42 is a telescopic rod, which is sleeved by two sleeves, and the upper end side wall of the outer sleeve is provided with a positioning bolt 422.

Preferably, a locking mechanism 6 is provided between the first handle 24 and the fixed base 12 and between the second handle 54 and the support post 42.

Preferably, the locking mechanism 6 comprises a sleeve 61 fixed on the side wall of the first hand crank 24 and the second hand crank 54 respectively, a pull rod 62 inserted in the sleeve 61 in a sliding way, and a tooth block 63 and a pull ring 64 arranged at two ends of the pull rod 62 respectively, annular racks 65 are arranged on the side walls of the fixed seat 12 and the support column 42 respectively, the circle center of the annular racks 65 coincides with the axle centers of the first hand crank 24 and the second hand crank 54, and the tooth block 63 is meshed with the annular racks 65;

The sleeve 61 is internally provided with a spring 66, the spring 66 is sleeved on the outer wall of the pull rod 62, and two ends of the spring are respectively fixedly connected with the inside of the sleeve 61 and the tooth block 63.

In this embodiment, when the first hand crank 24 and the second hand crank 54 need to be rotated, an index finger (or other finger) hooks the pull ring 64 and pulls the pull ring 64 outwards, at this time, the pull rod 62 moves outwards, so that the tooth block 63 is disengaged from the annular rack 65, the spring 66 is compressed, and at the same time, the palm of the hand holds the first hand crank 24 or the second hand crank 54, so that the first hand crank 24 or the second hand crank 54 can be rotated until the position of the head rest meets the operation requirement, rotation is stopped again, at this time, the finger hooked on the pull ring 64 can be released, and then the tooth block 63 is reset under the elastic force of the spring 66, and is meshed with the annular rack 65 again to realize locking.

Preferably, the head rest connection rod 43 is Z-shaped.

Preferably, the lower end cross bars of the head support connecting rod 43 are respectively provided with a lateral protection pad 31, the lateral protection pads 31 are respectively and fixedly connected with two sides of the head support 3, and the lateral protection pads 31 can prevent the head of a patient from sliding down from two sides of the head support 3.

Preferably, a second fastening bolt 45 is provided at the lower end of the second 匚 -type clip 41. The second 匚 type clamp 41 is gradually clamped into two sides of the fixing frame 13 from the front end of the fixing frame 13, the second fastening bolt 45 is screwed down, the top end of the second fastening bolt 45 is made to abut against the fixing frame 13, and then the fixing is completed. Simultaneously, the utility model is also convenient to detach when not in use, the second 匚 type clamp 41, the head support 3 and the head support supporting device 4 are integrally detached from the fixing frame 13, and most of the fixing frame 13 is slid to the lower end of the operating table. When the head rest 3 is not required to be used for a long time, the first 匚 -type clamp 11, the fixing device 1, the head rest 3 and the head rest support device 4 may be detached as a whole.

Preferably, the head rest 3 comprises a head rest support 32 connected with the head rest connecting rod 43 and a support pad 33 arranged at the upper end of the head rest support 32, wherein the surface of the support pad 33 is a silica gel cushion layer which is more attached to the skin of a human body, so that the face of a patient is more comfortable, a sponge pad with higher hardness is arranged in the support pad 33, the support performance is improved, a through hole 34 exposing the eyes and the nose is formed in the head rest 3, a notch 35 communicated with the through hole 34 is formed in one side, close to an operating table, of the head rest 3, the width of the notch 35 is approximately 3cm, the tracheal intubation of the patient is facilitated to pass through, and extrusion to the tracheal intubation is avoided. The support pad 33 in this embodiment may be provided with a plurality of different models, preferably three, and the size of the support pad 33 and the size of the through hole 34 of each model are different so as to be suitable for patients of different ages or different facial sizes, and the support pad 33 may be fixedly connected with the head support 32 by means of velcro adhesion or strap connection so as to be convenient for replacing the support pad 33 of different models.

Preferably, two elastic soft bags 341 are disposed in the through holes 34 at corresponding positions of the two eyes, so as to support the eyes of the patient better, and the elastic soft bags 341 are made of transparent materials, preferably transparent silica gel, which has good touch feeling with the skin, so that the patient is more comfortable. Further, the two elastic soft bags 341 can be opened downwards to expose eyes of a patient so that a doctor can observe pupils of the patient in operation, one end of each elastic soft bag 341 is fixed at the lower end of the corresponding head support 32, the other end of each elastic soft bag 341 can be stuck to the lower end of the corresponding head support 32 through a magic tape so that the doctor can open the corresponding elastic soft bag 341 to observe the pupils of the patient, further, a second magic tape can be arranged on the back surface of one side of each elastic soft bag 341, a sub-magic tape matched with the second magic tape is arranged under the corresponding head support 32 at one end of each fixed elastic soft bag 341, and the sub-magic tape is turned over and fixed at the lower end of the corresponding head support 32 after the corresponding elastic soft bag 341 is opened, so that the doctor can observe the pupils of the patient conveniently.

The present utility model has been further described with reference to the examples, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (10)

1. A surgical bed head support device for ease of adjustment, comprising:

The fixing device (1) comprises a first 匚 type clamp (11) and a fixing seat (12), wherein the first 匚 type clamp (11) is respectively connected with fixing columns at two sides of the operating table, the fixing seat (12) is arranged at the lower end of the first 匚 type clamp (11) and is positioned at the lower end of the operating table, and a fixing frame (13) is arranged in the fixing seat (12) in a sliding manner along the length direction of the operating table;

The interval adjusting mechanism (2) is arranged between the fixed seat (12) and the fixed frame (13) and is used for adjusting the sliding position of the fixed frame (13) on the fixed seat (12);

the head support (3) is arranged at the upper end of the fixing frame (13) and is positioned at the outer side of the operation bed head board;

The head support supporting device (4) comprises a second 匚 type clamp (41) connected with two sides of the fixed frame (13), a supporting column (42) arranged at the upper end of the second 匚 type clamp (41) and a head support connecting rod (43) rotatably connected with the upper end of the supporting column (42), and the other ends of the two head support connecting rods (43) are fixedly connected with the head support (3);

And the angle adjusting mechanism (5) is arranged between the head support connecting rod (43) and the support column (42) and is used for adjusting the elevation angle of the head support (3).

2. The adjustable surgical bed head support device of claim 1, wherein:

The fixed seat (12) is provided with a sliding hole (121) along the length direction of the operating table, and the fixed frame (13) is arranged in the sliding hole (121) in a sliding way;

The fixed seat (12) at the lower end of the sliding hole (121) is provided with a groove (122) communicated with the sliding hole (121), the interval adjusting mechanism (2) comprises a transmission shaft (21) which is rotatably arranged on the left side wall and the right side wall of the groove (122), transmission gears (22) which are fixedly arranged on two sides of the transmission shaft (21) in a penetrating mode and racks (23) which are arranged on two sides of the lower end of the fixed frame (13), the racks (23) are in meshed connection with the transmission gears (22), and any one end of the transmission shaft (21) penetrates out of the side wall of the fixed seat (12) to be fixedly connected with a first crank (24).

3. The head support device for the operating table, which is convenient to adjust, according to claim 1, characterized in that a first fastening bolt (14) is arranged on one side of the lower end of the first 匚 type clamp (11) away from the fixed seat (12) in a penetrating way.

4. The adjustable surgical bed head support device of claim 2, wherein:

A cavity (421) is formed in the upper end of the support column (42), a first rotating shaft (44) is rotatably connected to the left side wall and the right side wall of the upper end of the cavity (421), and one end, close to the head support (3), of the first rotating shaft (44) penetrates out of the support column (42) and is fixedly connected with the head support connecting rod (43);

The angle adjusting mechanism (5) comprises a first gear (51) fixedly penetrating through the first rotating shaft (44) and a second gear (52) which is arranged in the cavity (421) and is meshed with the first gear (51), the second gear (52) is rotationally connected to the left side wall and the right side wall of the cavity (421) through a second rotating shaft (53), and one end, far away from the head rest (3), of the second rotating shaft (53) penetrates out of the supporting column (42) and is connected with a second hand crank (54).

5. The head support device for the operating table, which is convenient to adjust, according to claim 1, characterized in that the support column (42) is a telescopic rod, which is sleeved by two sections of sleeves, and the upper end side wall of the outer sleeve is provided with a positioning bolt (422) in a penetrating way.

6. The head support device for the operating table, which is convenient to adjust, according to claim 4, is characterized in that a locking mechanism (6) is arranged between the first hand crank (24) and the fixed seat (12) and between the second hand crank (54) and the supporting column (42).

7. The adjustable surgical bed head support device of claim 6, wherein:

The locking mechanism (6) comprises a sleeve (61) fixed on the side wall of the first hand crank (24) and the side wall of the second hand crank (54), a pull rod (62) inserted in the sleeve (61) in a sliding manner, and a tooth block (63) and a pull ring (64) which are respectively arranged at two ends of the pull rod (62), annular racks (65) are arranged on the side walls of the fixed seat (12) and the support column (42), the center of each annular rack (65) coincides with the axes of the first hand crank (24) and the second hand crank (54), and the tooth block (63) is meshed with each annular rack (65);

The sleeve (61) is internally provided with a spring (66), the spring (66) is sleeved on the outer wall of the pull rod (62), and the two ends of the spring are fixedly connected with the inside of the sleeve (61) and the tooth block (63) respectively.

8. The head support device for an operating table, which is convenient to adjust, according to claim 1, characterized in that the lower end of the second 匚 type clamp (41) is provided with a second fastening bolt (45) in a penetrating way.

9. The head support device for the operating table, which is convenient to adjust, according to claim 1, characterized in that the head support (3) comprises a head support seat (32) connected with the head support connecting rod (43) and a support pad (33) arranged at the upper end of the head support seat (32), the head support (3) is provided with a through hole (34) exposing the eyes and the nose, and one side of the head support (3) close to the operating table is provided with a notch (35) communicated with the through hole (34).

10. The head support device for operating tables, which is convenient for adjustment according to claim 9, characterized in that two elastic soft bags (341) are provided in the through holes (34) at the corresponding positions of the two eyes.