CN-224220374-U - Surgical head fixing device

CN224220374UCN 224220374 UCN224220374 UCN 224220374UCN-224220374-U

Abstract

The utility model relates to the technical field of medical appliances, in particular to a surgical head fixing device which comprises a support, an adjustor and a connector. The support is a U-shaped head clamp and comprises a fixed arm and a movable arm, the regulator is provided with a safety switch, the safety switch and the handle trigger transmission mechanism are required to be synchronously pressed to unlock the extending arm, misoperation is prevented, and the connector supports side rail type or inserted rod type installation and is suitable for various operating tables. The device realizes single-hand flexible adjustment through the linkage transmission mechanism, and the suspended design of the U-shaped head clamp avoids facial compression in the prone position, thereby ensuring convenient intubation and observation. The utility model has safe and controllable operation, high multi-position compatibility and convenient adjustment, and is suitable for the accurate fixing requirement of craniocerebral and cervical vertebra operations.

Inventors

ZHANG SUNFU
HAO BIN
WANG YIZE
You Liangmeng

Assignees

乐珩医疗科技(天津)有限公司

Dates

Publication Date: 20260512
Application Date: 20250514

Claims (9)

1. The surgical head fixing device is characterized by comprising a support, an adjustor and a connector, wherein one end of the adjustor is connected with the support through a first inserting mechanism, the other end of the adjustor is connected with the connector, and the adjustor comprises a first adjusting device, a second adjusting device, a transverse support, a first bending arm and a second bending arm; The first adjusting device comprises a first grab handle, a first safety switch and a first transmission mechanism, wherein the first handle is hinged with the first grab handle, the first safety switch is arranged below the first grab handle and is hinged with the first grab handle, and when the first safety switch is pressed into the first grab handle and the first handle is close to the first grab handle, the first transmission mechanism triggers the first bending arm to unlock; The second adjusting device comprises a second grab handle, a second safety switch and a second transmission mechanism, wherein the second handle is hinged with the second grab handle, the second safety switch is arranged below the second grab handle and hinged with the second grab handle, and the second safety switch is pressed into the second grab handle and triggers the second bending arm to unlock when the second handle is close to the second grab handle.
2. The surgical head fixation apparatus of claim 1 wherein said first grafting mechanism comprises a first adapter arm and a socket, said first adapter arm being fixedly connected to said socket by a first jack screw and a clamping handle; The support is a U-shaped head clamp, a first fluted disc is arranged on the U-shaped head clamp, a second fluted disc is arranged on the first switching arm, and the first switching arm is in butt joint with the U-shaped head clamp through the first fluted disc and the second fluted disc and is fixedly connected through a second jackscrew; The U-shaped head clamp comprises a fixed arm and a movable arm, and the fixed arm is fixedly connected with the movable arm through a handle; The fixing arm is provided with a nail seat, the rotation angle of the nail seat is adjusted through a first knob, the nail seat is provided with two first head nails, the moving arm is provided with a second head nail, and the second head nail is driven through the second knob to be embedded into the skull.
3. The surgical head fixation apparatus according to claim 1, wherein the first arm is fixedly connected to the lateral support member via a first bushing and a first bolt, wherein a first disc spring is provided on the first bolt, wherein the first arm is connected to the second arm via a second bushing and a second bolt, wherein a second disc spring is provided on the second bolt, wherein the second arm is connected to the connector via a third bushing and a third bolt, and wherein a third disc spring is provided on the third bolt.
4. The surgical head fixation apparatus of claim 1 wherein said first transmission mechanism comprises a first rotational member, a second rotational member, a first transmission rod, a third rotational member, a second transmission rod, a first spring, and a second spring, said first spring having two ends respectively connected to said first safety switch and said first handle, and said second spring having two ends respectively connected to said first handle and said first handle; The first rotating piece is hinged with the first safety switch, the second rotating piece is hinged with the first grab handle, the first handle is abutted with one end of the second rotating piece through a ball, the other end of the second rotating piece is abutted with the first transmission rod, and the first transmission rod is arranged in the transverse supporting piece; The third rotating piece is connected with the first bending and stretching arm through a first fixing seat, the third rotating piece is hinged with the first fixing seat, and the first transmission rod is abutted with the third rotating piece; the second transmission rod horizontally moves on the side surface of the first bending arm, the third rotating piece is abutted to the second transmission rod, a first fixing column and a second fixing column are arranged on the second transmission rod, the first fixing column and the second fixing column are respectively abutted to the first swinging piece and the second swinging piece, a first positioning piece and a second positioning piece are coaxially connected with the first swinging piece and the second swinging piece respectively, and a first limiting piece and a second limiting piece are respectively arranged outside the first positioning piece and the second positioning piece; the first locating piece and the second locating piece are respectively connected with the first bolt and the second bolt.
5. The surgical head fixation apparatus of claim 2 wherein said second transmission mechanism comprises a fourth rotational member, a fifth rotational member, a third transmission rod, a sixth rotational member, a fourth transmission rod, a third spring, and a fourth spring, wherein two ends of said third spring are respectively connected to said second safety switch and said second handle, and two ends of said fourth spring are respectively connected to said second handle and said second handle; the fourth rotating piece is hinged with the second safety switch, the fifth rotating piece is hinged with the second grab handle, and the second handle is abutted with one end of the fifth rotating piece through a ball; The third transmission rod is arranged in the transverse supporting piece, and the other end of the fifth rotating piece is abutted with the third transmission rod; the sixth rotating piece is connected with the first bending and stretching arm through a second fixed seat, the sixth rotating piece is hinged with the second fixed seat, and the third transmission rod is abutted with the sixth rotating piece; The fourth transmission rod moves on the side face of the first bending arm, one end of the fourth transmission rod is abutted to the sixth rotating piece, the other end of the fourth transmission rod is abutted to the seventh rotating piece, the seventh rotating piece is hinged to the first bending arm, the seventh rotating piece is abutted to the fifth transmission rod through balls, the fifth transmission rod moves on the side face of the second bending arm, a third fixing column is arranged on the fifth transmission rod, the third fixing column is abutted to the third swinging piece, a third locating piece coaxially rotating with the third swinging piece is arranged, a third limiting piece is arranged outside the third locating piece, and the third limiting piece is connected with a third bolt.
6. The surgical head fixation apparatus of claim 2 wherein said connector comprises a cross member, a movable shaft, and a second adapter arm, said movable shaft being fixedly connected to said cross member by a third jack screw, said second adapter arm being disposed at both ends of said cross member and being fixedly connected thereto by a fourth jack screw; the second switching arm is fixedly connected with the side rail clamp through a fifth jackscrew and a third fluted disc, an inserting rod is arranged at one end of the side rail clamp, and the inserting rod is connected with the side rail clamp through a sixth jackscrew.
7. A surgical head fixation apparatus as claimed in claim 6 wherein said connector is connected to a surgical bed rail or a bayonet connection.
8. The surgical head fixing device according to claim 6, wherein the axial center of the movable shaft is provided as a cambered surface.
9. A surgical head fixation apparatus as claimed in claim 2 wherein said first adapter arm is configured as a right angle adapter arm, a 45 angle adapter arm or a short adapter arm.

Description

Surgical head fixing device Technical Field The utility model relates to the technical field of medical instruments, in particular to a surgical head fixing device. Background In the process of performing craniocerebral operations and cervical vertebra operations, the stability of the head directly influences the operation precision and the safety of patients, so that the fixing effect of the head fixing device is required to be high. However, the conventional head fixing device has the defects that firstly, the conventional fixing device adjusts the joints of each part through manual knobs so as to adjust the angles and positions of the head and the neck of a patient, the operation is complex, the operation needs to be adjusted repeatedly, the efficiency is low, and secondly, the conventional head fixing device is difficult to adapt to the requirements of multiple postures such as supine, lateral lying, prone lying and the like. Especially in the prone position, the traditional head pad is easy to press on the facial organs of a patient, and affects intubation operation and intraoperative observation. In critical surgical procedures, head stability is critical, whereas conventional fixation devices lack a safety mechanism to avoid mishandling, and medical personnel may inadvertently touch the adjustment member, resulting in accidental unlocking of the device, affecting surgical safety. Disclosure of utility model The utility model aims to provide a surgical head fixing device, which solves the problems of complex and single operation mode, lack of safety mechanism for preventing misoperation and the like of the traditional surgical head fixing device, provides key safety guarantee and operation controllability, and is suitable for multi-position complex surgical scenes with extremely high requirements on precision and reliability. In order to achieve the above object, the present utility model provides a surgical head fixing device, including a support, an adjustor and a connector, wherein one end of the adjustor is connected with the support through a first plugging mechanism, the other end of the adjustor is connected with the connector, and the adjustor includes a first adjusting device, a second adjusting device, a transverse supporting piece, a first bending arm and a second bending arm; The first adjusting device comprises a first grab handle, a first safety switch and a first transmission mechanism, wherein the first handle is hinged with the first grab handle, the first safety switch is arranged below the first grab handle and is hinged with the first grab handle, and when the first safety switch is pressed into the first grab handle and the first handle is close to the first grab handle, the first transmission mechanism triggers the first bending arm to unlock; The second adjusting device comprises a second grab handle, a second safety switch and a second transmission mechanism, wherein the second handle is hinged with the second grab handle, the second safety switch is arranged below the second grab handle and hinged with the second grab handle, and the second safety switch is pressed into the second grab handle and triggers the second bending arm to unlock when the second handle is close to the second grab handle. Preferably, the first plugging mechanism comprises a first switching arm and a socket, and the first switching arm is fixedly connected with the socket through a first jackscrew and a clamping handle; The support is a U-shaped head clamp, a first fluted disc is arranged on the U-shaped head clamp, a second fluted disc is arranged on the first switching arm, and the first switching arm is in butt joint with the U-shaped head clamp through the first fluted disc and the second fluted disc and is fixedly connected through a second jackscrew; The U-shaped head clamp comprises a fixed arm and a movable arm, and the fixed arm is fixedly connected with the movable arm through a handle; The fixing arm is provided with a nail seat, the rotation angle of the nail seat is adjusted through a first knob, the nail seat is provided with two first head nails, the moving arm is provided with a second head nail, and the second head nail is driven through the second knob to be embedded into the skull. Preferably, the first bending arm and the transverse supporting piece are fixedly connected through a first shaft sleeve and a first bolt, a first disc spring is arranged on the first bolt, the first bending arm and the second bending arm are connected through a second shaft sleeve and a second bolt, a second disc spring is arranged on the second bolt, the second bending arm and the connector are connected through a third shaft sleeve and a third bolt, and a third disc spring is arranged on the third bolt. Preferably, the first transmission mechanism comprises a first rotating member, a second rotating member, a first transmission rod, a third rotating member, a second transmission rod, a first spring and a