WO2013165095A1

WO2013165095A1 - Head clamp

Info

Publication number: WO2013165095A1
Application number: PCT/KR2013/002545
Authority: WO
Inventors: 최근욱; 고창훈
Original assignee: (주)세인메덱스
Priority date: 2012-04-30
Filing date: 2013-03-27
Publication date: 2013-11-07
Also published as: KR101177539B1

Abstract

The present invention relates to a head clamp. More specifically, a head clamp for fixing the head of a patient for a surgical operation or examination, comprises: a coupling plate which is coupled to one end of a table for supporting the body of the patient; a longitudinal axis frame of which the end of one side is coupled to an end at the center of the coupling plate, and the lengthwise direction of which is parallel to a first axial direction, which is in a longitudinal direction; a latitudinal axis frame of which the lengthwise direction is in a latitudinal direction, and which is parallel to a second axial direction that is perpendicular to the first axial direction; a length adjustment portion, which is provided between the longitudinal axis frame and the latitudinal axis frame, for guiding the longitudinal frame so as to shift in the first axial direction and shift the latitudinal frame in the second axial direction; arms, each of which has an end on one side that is coupled to ends on both sides of the latitudinal frame; pin holder devices which are coupled to each end on the other side of the arms, respectively; and pins, each of which is coupled to the pin holder device, for coupling the head between the arms, thereby allowing an integrated body comprising the arms and the latitudinal frame to enter the inside of a gantry while the head is fixed by means of the pins.

Description

Head clamp

The present invention relates to a head clamp. More specifically, to fix the patient's head for surgery or examination, the head centerline is always located along the gantry centerline, and the entire structure can be entered into the gantry while the head is firmly fixed by pins. In particular, the present invention relates to a head clamp that enables CT imaging and the like.

In general, in order to enter the patient's head into the brain surgery, surgery for imaging the brain CT, the inside of the gantry of the measuring equipment, the patient's head must be firmly fixed and the center of gravity is parallel.

In the case of such a brain surgery, the head clamp for fixing the head of the patient before entering the head into the gantry of the measuring device is described in the prior US Patent No. 03835861. The U.S. Patent No. 03835861 is a surgical head clamp, and includes a flat frame and a first arm and a second arm fixed to both sides of the frame. Then, each of the ends of the first arm and the end of the second arm has a structure coupled to the pin.

The pins are contacted and inserted into the head to fix the head to enter the inside of the gantry. However, US Patent No. 03835861 has a distance between the first arm and the second arm, and the width of the entire size is larger than the diameter of the gantry. There has been a problem that the entire head clamp fixed to the patient's head cannot be entered into the gantry. Therefore, the whole head clamp could not be entered into the gantry, so CT imaging was impossible during brain surgery, and there was a discomfort and danger that the assistant should hold the head of the unconscious patient and fix the frame.

In addition, the angle between the first arm and the second arm is not adjusted, it can not be replaced, it is difficult to apply to patients with various head sizes, the angle change of the pin and the pin is fastened to the first arm and the second arm There was a problem that can not be firmly fixed to the patient's head when the position, position of the patient is changed because the angle can not be adjusted.

In addition, the pin material provided in the head clamp conventionally used a metal material such as stainless steel pin, titanium pin or sapphire pin, but when using the metal material, the image is distorted up to 3cm around the metal pin during image CT. It was.

Therefore, it is possible to enter the whole head clamp inside the gantry, replace with various size arms, finely control the angle and insertion depth of the pin, including the pin holder device, and adjust the angle of the arm. There was a need for a head clamp to fix the head for brain surgery or brain examination that is capable of reducing image distortion.

The present invention was derived to solve the above problems, the head between the arm does not exceed about 40cm, the head clamp is allowed to enter the inside of the gantry in a fixed state, CT imaging is possible even during brain surgery When the head is fixed, the center line of the head is located along the center axis of the gantry and the angle can be adjusted to the arm and the pin holder device so that the center line of the head and the center axis of the gantry coincide even if the position of the patient is changed. This provides a head clamp that can maintain parallelism. In addition, the arm can be replaced with a different size and can be applied to a variety of patient head sizes, it is made of a Duralurine material to provide a head clamp to remove the image distortion during radiographic CT scan.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings.

An object of the present invention is a head clamp for fixing a patient's head for surgery or examination, fastening plate fastened to one end of the table for supporting the body of the patient; one end is coupled to the central end of the fastening plate and the length A longitudinal axis frame parallel to the first axial direction in the longitudinal direction; A horizontal axis frame in a longitudinal direction and parallel to a second axis direction perpendicular to the first axis direction; A length adjusting unit provided between the vertical frame and the horizontal frame to move the vertical frame in the first axis direction and to guide the horizontal frame in the second axis direction; One end of each arm is coupled to each of both ends of the transverse frame; a pin holder device coupled to the other end of each arm; And a pin, each of which is coupled to a pin holder device, the pin holding the head between the arms, wherein the arm and the transverse frame unit are accessible into the gantry with the head fixed by the pin. Can be achieved.

The length adjusting part includes a first length adjusting part having a longitudinal direction parallel to the first axis and reciprocating into the longitudinal axis frame, and a second length adjusting part having a longitudinal direction parallel to the second axis and reciprocating into the horizontal axis frame. It may be characterized by.

A thread is formed on one side of the first length adjusting part and one side of the second length adjusting part, and is inserted into one side of the longitudinal frame to fix the first length adjusting part in the vertical frame, and one side of the horizontal axis frame. It may be characterized in that it further comprises a second fixing portion to be inserted in to fix the second length adjustment in the horizontal frame.

The arm includes a first arm coupled to one end of the transverse frame and a second arm coupled to one end of the second length adjustment part, and the distance between the other end of the first arm and the other end of the second arm is 20 to 40 cm. It can be characterized by.

The first arm may be detachable from the horizontal frame, and the second arm may be detachable from the second length adjusting part.

Each of the first arm and the second arm may be rotatable about a second axis.

Each of the first arm and the second arm may have a predetermined curvature and be configured in a curved shape.

It may be characterized in that it comprises a head bracket for supporting the head before the head is fixed by the insertion groove and the pin formed on one side of the transverse frame and the insertion hole is inserted into the insertion groove is provided on the central side of the lower surface of the head bracket. have.

It is provided in the center of the lower surface of the head bracket and a thread is formed on the outer circumferential surface can be characterized in that it is possible to move the head bracket, including the protrusion is inserted into the insertion groove.

It may be characterized in that it comprises a third fixing sphere for fixing the insertion hole coupled to the head bracket in the state inserted into the insertion groove.

The pin holder device may include a first pin holder device coupled to the other end of the first arm and a second pin holder device coupled to the other end of the second arm.

Pins are installed at both ends of the first pin holder device, and the first pin holder device may be provided in a curved shape with a predetermined curvature.

The pin may be configured to be detachable from the first pin holder device.

And a rotating part provided between the first pin holder device and the first arm to rotate the first pin holder device about an axis parallel to the second axis.

The first pin holder device may be rotatable about a third axis perpendicular to an axis parallel to the second axis.

The pin may be configured to be detachably attached to the other end of the second pin holder device.

The outer peripheral portion of the second pin holder device is formed with a screw thread is inserted into the other end of the second arm, it can be characterized in that the insertion length of the pin installed in the second pin holder device can be changed by the movement by the screw thread.

At least one of the arm, the length adjusting unit, the vertical frame, the horizontal frame, and the holder device may be made of a duralumin material.

Therefore, according to the embodiment of the present invention as described above, the entire head clamp can be entered into the gantry with the head fixed while the gap between the arms does not exceed about 40 cm, and CT imaging is possible during brain surgery. The head center line is positioned along the center axis of the gantry with the head fixed and the angle can be adjusted to the arm and the pin holder device so that the center line of the head and the center axis of the gantry coincide even when the position of the patient is changed. It has the effect of maintaining. In addition, it is possible to replace the arm with a different size can be applied to a variety of patient head size, it is made of a Duralurine material has the advantage that the image distortion is removed during the radiographic CT scan.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations are possible without departing from the spirit and scope of the present invention. Are all within the scope of the appended claims.

1 is an exploded perspective view of a head bracket separated from a head clamp according to an embodiment of the present invention;

2 is a front view of a head clamp according to an embodiment of the present invention;

3 is a front of the head clamp without the head bracket according to an embodiment of the present invention,

4 is a plan view of a head clamp according to an embodiment of the present invention;

5 is a plan view of the head clamp excluding the head bracket according to an embodiment of the present invention,

6 is a side view of the head clamp according to one embodiment of the present invention;

7 is a side view of the head clamp without the head bracket according to the embodiment of the present invention;

8 is an enlarged perspective view of a head clamp in which an engaging portion of an arm is enlarged according to an embodiment of the present invention;

9 is a perspective view of a first pin holder device according to an embodiment of the present invention,

10 is a side view of the first pin holder device according to an embodiment of the present invention;

11 is a plan view of a first pin holder device according to an embodiment of the present invention;

12 is a plan view of the first pin holder device removing the rotating part according to an embodiment of the present invention;

Figure 13 is a perspective view of one end pin holder of the first pin holder device according to an embodiment of the present invention,

14 is a plan view of one end of the pin holder portion of the first pin holder device according to an embodiment of the present invention;

15 is a perspective view of the other end pin holder of the first pin holder device according to an embodiment of the present invention;

16 is a plan view of the other end pin holder of the first pin holder device according to the embodiment of the present invention;

17 is a perspective view of a second pin holder device according to an embodiment of the present invention,

18 is a side view of the second pin holder device according to an embodiment of the present invention.

1: head clamp 2: pin

11: Vertical axis frame 12: Horizontal axis frame

13: First Government: 14: Second Government

21: first length control unit 22: second length control unit

31: first arm 32: second arm

41: Insertion groove 42: Head bracket

43: Insertion 44: The third government

50: first pin holder device 51: rotating part

52: One end pin holder part 53: The other end pin holder part

54: fastening member 60: second pin holder device

61: first depth adjustment unit 62: second depth adjustment unit

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, this includes not only the case where it is directly connected, but also the case where it is indirectly connected with another element in between. In addition, the inclusion of any component does not exclude other components unless specifically stated otherwise, it means that may further include other components.

Hereinafter will be described the configuration and function of the head clamp (1) for fixing the head of the patient for surgery or examination of the patient's head in accordance with an embodiment of the present invention. First, Figure 1 shows an exploded perspective view of the head bracket 42 is separated from the head clamp 1 according to an embodiment of the present invention. 2 shows a front view of the head clamp 1 according to the embodiment of the present invention, and FIG. 3 shows the head clamp 1 without the head bracket 42 according to the embodiment of the present invention. The front view is shown.

And, Figure 4 shows a plan view of the head clamp 1 according to an embodiment of the present invention, Figure 3 is a head clamp (1) of the head bracket 42 is excluded, in accordance with an embodiment of the present invention A plan view is shown.

6 shows a side view of the head clamp 1 according to the embodiment of the present invention, and FIG. 7 shows the head clamp 1 without the head bracket 42 according to the embodiment of the present invention. A side view is shown.

1, 2, 4 and 6, the head clamp 1 according to an embodiment of the present invention is a fastening plate fastened to one end of the table for supporting the body of the patient, one end is fastened A longitudinal axis frame 11 coupled to a central end of the plate and parallel to the first axis direction in the longitudinal direction, and a horizontal axis frame in the longitudinal direction in the transverse direction and parallel to the second axis direction perpendicular to the first axis direction ( 12) is provided between the vertical axis frame 11 and the horizontal axis frame 12 to move the vertical axis frame 11 in the first axis direction, the guide to move the horizontal axis frame 12 in the second axis direction Length adjusting portion to each, one end of the arm is coupled to each of the both ends of the horizontal axis frame 12, the pin holder device is coupled to the other end of each of the arms, each is coupled to the pin holder device, the arm Pin (2) and a horizontal shaft press for fixing the head between May be by the insertion groove 41 and the pin (2) formed on a side of 12, seen that the heads and the like bracket 42 for supporting the head prior to securing the hair.

The head clamp 1 according to one embodiment of the present invention is used to fix the head of the patient to enter the head of the patient for CT imaging or brain surgery gantry for brain surgery or CT imaging of the brain. As will be described later, the head clamp 1 according to an embodiment of the present invention is such that the distance between the arms does not exceed about 40 cm so that the entire head clamp 1 can enter the gantry with the head fixed. CT scan is also possible during brain surgery, the head centerline is located along the center axis of the gantry with the head fixed and the angle of the arm and pin holder is adjustable so that the centerline of the head is changed even if the position of the patient is changed. And the central axis of the gantry coincide with each other and have technical characteristics to maintain parallelism.

The frame of the head clamp 1 according to an embodiment of the present invention is shown in Figure 1a, 1b, 2, 3, 4, 5, 6 and 7, the longitudinal direction is longitudinal It can be seen that the longitudinal axis frame 11 parallel to the first axis and the horizontal axis frame 12, the longitudinal direction is parallel to the second axis perpendicular to the first axis. The vertical frame 11 and the horizontal frame 12 is preferably made of a Duralumin material to prevent the image is distorted during CT imaging. In addition, one side end of the longitudinal frame 11 is provided with a fastening plate is coupled to the longitudinal frame 11 to one end of the table supporting the body of the patient.

In addition, the head clamp 1 according to an embodiment of the present invention includes a length adjusting portion that is inserted between the longitudinal frame 11 and the transverse frame 12. 1, 4, and 5, the length adjusting part is inserted into the first length adjusting part 21 and the horizontal axis frame 12, which is inserted into the vertical axis frame 11, and the first It can be seen that the second length adjusting portion 22 is connected to the length adjusting portion 21.

A thread is formed on one outer surface of the first length adjusting part 21, and the first fixing tool 13 inserted into one side of the longitudinal frame 11 is caught by the thread formed in the first length adjusting part 21. While the first length adjustment unit 21 is fixed to the vertical axis frame (11). When the first fixture 13 is removed, the vertical axis frame 11 is movable along the thread of the first length adjustment part 21, and the user may move the vertical axis frame 11 to a desired position by the first fixture 13. ) Can be fixed to the first length adjustment unit (21).

In addition, as shown in Figure 4 and 5, the screw thread is formed on the outer surface of one side of the second length adjusting portion 22, the second fixing tool 14 is inserted into one side of the horizontal axis frame 12 The second length adjusting part 22 is fixed to the horizontal axis frame 12 while being caught by the thread formed in the second length adjusting part 22. When the second fixture 14 is removed, the horizontal axis frame 12 can be moved along the thread of the second length adjusting part 22, and the user can move the longitudinal axis frame 11 at a desired position by the second fixture 14. ) Can be fixed to the first length adjustment unit (21).

Accordingly, the vertical axis frame 11 is reciprocated in the first axis direction by the first length adjustment unit 21, and the horizontal axis frame 12 is moved in the second axis direction by the second length adjustment unit 22. Reciprocating movement is possible. In addition, the first length adjusting unit 21 and the second length adjusting unit 22 may also be made of a Duralamine material to prevent the image from being distorted during CT imaging.

In addition, the head clamp 1 according to the embodiment of the present invention includes two arms, as shown in FIGS. 1A, 1B, 2, 3, 4, 5, 6, and 7. It can be seen that. In detail, the first arm 31 coupled to the right side of the horizontal axis frame 12 and the second arm 32 coupled to the left side are included based on those shown in FIGS. 1, 2, and 3. Able to know.

One end of the first arm 31 according to an embodiment of the present invention is provided in the shape of a disc, the insertion hole is formed in the center, the one end of the transverse frame 12 is in contact with the fastening of the pin (2) By means of fastening. In addition, it can be seen that the first arm 31 is provided in a curved shape having a predetermined curvature, as shown in FIGS. 1, 2, and 3.

In addition, since the first arm 31 and the horizontal axis frame 12 are assembled in a prefabricated manner, the first arm 31 is detachable from the horizontal axis frame 12 by disassembly of the pins 2 and the like, and thus, different sizes of various sizes can be obtained. It becomes replaceable with an arm.

The first arm 31 is configured to be rotatable about an axis parallel to the second axis direction. The first arm 31 according to an embodiment of the present invention is configured to be rotatable about an axis parallel to the second axis direction in a spur gear manner.

One end of the second arm 32 according to an embodiment of the present invention is also provided in the shape of a disc, the insertion hole is formed in the center, the second length adjusting portion 22 is inserted into the transverse frame 12 In contact with one end of the is to be fastened by a fastening means such as pin (2). In addition, it can be seen that the second arm 32 is provided in a curved shape having a predetermined curvature, as shown in FIGS. 1, 2, and 3.

In addition, since the second arm 32 and the second length adjusting unit 22 are assembled in a prefabricated manner, the second arm 32 may be detachable from the second length adjusting unit 22 by disassembling the pin 2 or the like. This can be replaced with other arms of various sizes. In addition, the second arm 32 is also configured to be rotatable about an axis parallel to the second axis direction. The second arm 32 according to an embodiment of the present invention is configured to be rotatable about an axis parallel to the second axis direction in a spur gear manner. In addition, the first arm 31 and the second arm 32 are also preferably made of duralumin material to prevent the image from being distorted during CT imaging.

8 shows an enlarged perspective view of the head clamp 1 in which the engaging portion of the arm is enlarged according to an embodiment of the present invention. As shown in FIG. 8, the ends of the arms (the first arm 31 and the second arm 32) according to the embodiment of the present invention have a circular plate shape, and radial threads are formed on the outer circumferential surface of the disc. It can be seen that. In addition, it can be seen that a screw thread engaged with the thread of the arm is formed at the end of the horizontal axis premise 12 in contact with the first arm and the end of the second length adjusting part 22 in contact with the second arm 32. have. Therefore, the head clamp 1 according to the embodiment of the present invention is the second threaded arm in the form of a spur gear while the screw thread formed on the arm and the thread formed on the horizontal axis frame 12 or the second length adjusting part 22 mesh with each other. Based on the axis parallel to the axis, each has a rotatable structure independently.

In addition, the head clamp 1 according to an embodiment of the present invention is inserted into the insertion groove 41 formed on one side of the horizontal frame 12, as shown in Figure 1, 2, 4 and 6 assembled It can be seen that the head bracket 42 is included. This head bracket 42 is installed to support the patient's head before the head is fixed by the pin (2). Head bracket 42 according to an embodiment of the present invention has a disc shape, and has a protrusion formed with a screw thread in the center of the lower surface. In addition, since the protrusion is inserted into the insertion hole to move along the thread, it is possible to move the head bracket 42 up and down. In addition, the insertion hole 43 is inserted into the insertion groove 41 formed in the horizontal axis frame 12, and the third bracket 44 can be fitted to fasten the head bracket 42 to the horizontal axis frame 12, By removing the third fixing portion 44, the head bracket 42 can be separated.

In addition, the head clamp 1 according to the embodiment of the present invention includes a pin holder device for fixing the pin 2 to the head clamp 1 to be inserted into the outer shell of the head to fix the head.

Pin holder device according to an embodiment of the present invention includes a first pin holder device 50 and the second pin holder device (60). The first pin holder device 50 is assembled and fastened to the other end of the first arm 31 mentioned above. 9 is a perspective view of the first pin holder device 50 according to an embodiment of the present invention. And, Figure 10 shows a side view of the first pin holder device 50 according to an embodiment of the present invention, Figure 11 is a plan view of the first pin holder device 50 according to an embodiment of the present invention It is shown.

9, 10 and 11, the first pin holder device 50 of the present invention is a rotary part 51, one end pin holder portion 52, the other end pin holder portion 53 and the fastening member ( 54) and the like.

As shown in FIGS. 9, 10 and 11, the rotating part 51 constituting the first pin holder device 50 corresponds to a thread which is engaged with a thread formed at the other end of the first arm 31. It can be seen that the thread is provided. Therefore, the screw thread formed on the rotating part 51 and the screw thread formed on the other end of the first arm 31 are engaged with each other to move, so that the first pin holder device 50 is formed in the form of a spur gear around an axis parallel to the second axis. It can rotate.

12 illustrates a plan view of the first pin holder device 50 from which the rotating unit 51 is removed according to an embodiment of the present invention. As shown in FIGS. 9, 10, 11, and 12, the first pin holder device 50 according to an embodiment of the present invention has one pin holder portion 52 and the other pin holder portion 53. It can be seen that.

13 is a perspective view of one end pin holder portion 52 of the first pin holder device 50 according to an embodiment of the present invention, Figure 14 is a first pin holder device according to an embodiment of the present invention The top view of the pin holder part 52 of 50 is shown. 15 is a perspective view of the other end pin holder portion 53 of the first pin holder device 50 according to an embodiment of the present invention, Figure 16 is a first pin according to an embodiment of the present invention The top view of the other end pin holder part 53 of the holder apparatus 50 is shown.

One end of the pin holder portion 52 and the other end pin holder portion 53 has a curved shape having a predetermined curvature. That is, one pin holder 52 and the other pin holder 53 has a concave shape toward the inside of the head clamp 1 according to an embodiment of the present invention, as shown in Figure 9 and 10 It can be seen that.

In addition, as shown in Figure 12, 13 and 14, one end of the pin holder portion 52 according to an embodiment of the present invention is threaded radially formed on the outer peripheral portion at one end, and the pin ( It can be seen that 2) forms a hole to be inserted and fastened. The pin 2 once assembled to the pin holder part 52 is detachable and is configured to be able to replace the pin 2 when a pin 2 of a different size is required. In addition, as shown in Figure 12, 15 and 16, the other end pin holder portion 53 according to an embodiment of the present invention also has a thread formed radially on the outer periphery at one end, a pin ( It can be seen that 2) forms a hole to be inserted and fastened. The pin 2, which is assembled to the other end pin holder part 53, also has a tilting attachment, and is configured to be able to replace the pin 2 when a pin 2 having a different size is required.

Therefore, the thread formed on the outer peripheral portion of the one end thereof is later meshed with the thread formed on the other end pin holder portion 53 so as to be moved in a spur gear manner about a third axis perpendicular to the second axis direction. Therefore, the pin holder portion 52 and the other end pin holder portion 53 are rotatably engaged with respect to the third axis so that the lengthwise direction of the pin 2 assembled to the pin holder portion 52 and the other end pillar holder portion ( The angle between the longitudinal directions of the pins 2 assembled to 53 can be adjusted.

Then, the fastening member 54 is coupled to each of both sides of the portion where the one end pin holder portion 52 and the other end pin holder portion 53 are engaged by a screw thread so that the one end pin holder portion 52 and the other end pin holder portion ( 53). In addition, the first pin holder device 50 is also preferably made of Duralumin material to prevent the image is distorted during CT imaging.

In addition, the head clamp 1 according to an embodiment of the present invention includes a second pin holder device 60 that is assembled to the other end of the second arm (32). And, Figure 17 shows a perspective view of the second pin holder device 60 according to an embodiment of the present invention, Figure 18 is a side view of the second pin holder device 60 according to an embodiment of the present invention. It is shown.

As shown in FIGS. 17 and 18, the second pin holder device 60 according to the embodiment of the present invention is formed at the end of the second arm 32 and is disposed therein. It is in the form of a hollow tube to be inserted into the threaded insertion hole and the pin 2 is inserted into the installation.

And, the second pin holder device 60, as shown in Figure 17 and 18, the first length adjusting portion 61 and the second depth adjusting portion 62 includes a combined pin (2) The inner clamp of the head clamp 1 allows the protrusion and insertion to have a two-stage entry structure. That is, the first depth adjusting part 61 has a screw thread formed on the outer circumferential surface thereof, is inserted into an insertion hole provided at the end of the second arm 32, rotates along the screw thread direction, and pins in a direction parallel to the second axis direction. (2) can be moved. Therefore, the insertion depth of the pin 2 for fixing the head can be adjusted by the first depth adjusting part 61.

In addition, a screw thread is formed on the inner circumferential surface of the first depth adjusting part 61, and is screwed with each other with a screw thread formed on the outer circumferential surface of the second depth adjusting part 62. Movement of (2) becomes possible. The pin 2, which is assembled to the second depth adjusting part 62, is also configured to be tilted so that the pin 2 can be replaced when a pin 2 of a different size is required. In addition, the second pin holder Device 60 is also preferably made of Duralumin material to prevent the image is distorted during CT imaging. And, in the case of the pin 2, if the image is composed of a metal material, the image may be distorted to a white color up to 3 cm around the metal pin in the image CT.

Hereinafter, a brief description will be given of a method of fixing the head of the patient to the head clamp (1) described above. First, the coupling of the head clamp 1 according to an embodiment of the present invention by a fastening plate to one end of the table lying patient is installed. Then, the insertion hole 43 is inserted into the insertion groove 41 formed at one side of the horizontal axis frame 12 to assemble the head bracket 42 to the horizontal axis frame 12. And while adjusting the height by rotating the head bracket 42 so that the upper surface of the head bracket 42 supports the back of the head of the patient.

Next, in order to match the central axis of the head and the central axis of the head clamp 1, the longitudinal axis frame 11 is moved in the first axis direction by the first length adjusting part 21 and the second length adjusting part 22. The horizontal axis frame 12 is moved in the second axis direction.

Then, the first arm 31 and the second arm 32 are rotated in the second axial direction in the form of a spur gear, respectively, to adjust the angle, and by the rotating unit 51 provided in the first pin holder device 50. The first pin holder device 50 is rotated about an axis parallel to the second axis direction. Then, if necessary, in order to fix the head by the pin 2, the pin holder part 52 and the other end pin holder part 53 are rotated with respect to the third axis in the form of a spur gear so that the angle with the pin 2 is reduced. Will be adjusted.

Then, the pin 2 is inserted into the outer surface of the head by the first depth adjusting part 61 and the second depth adjusting part 62 provided in the second pin holder device 60 to implement the head of the present invention. It is fixed to the head clamp 1 according to the example. When the fixing of the head is completed, the head clamp (1) fixed head is entered into the gantry for brain surgery or brain CT imaging.

Claims

In a head clamp for fixing a patient's head for surgery or examination,

Fastening plate is fastened to one end of the table for supporting the body of the patient;

A longitudinal axis frame having one end coupled to a central end of the fastening plate and parallel to the first axial direction in the longitudinal direction thereof;

A horizontal frame parallel to a second axial direction perpendicular to the first axial direction and having a longitudinal direction transversely;

A length adjusting unit provided between the vertical frame and the horizontal frame to move the vertical frame in the first axis direction and to guide the horizontal frame in the second axis direction;

Arms each having one end coupled to each of both ends of the transverse frame;

A pin holder device coupled to the other end of each of the arms; And

Each of which is coupled to the pin holder device and includes a pin to secure the head between the arms such that the arm and the transverse frame unit are accessible into the gantry with the head fixed by the pin. The head clamp characterized by the above-mentioned.
The method of claim 1,

The length adjustment unit,

A first length adjusting part having a longitudinal direction parallel to the first axis and reciprocating into the longitudinal axis frame, and a second length adjusting part having a longitudinal direction parallel to the second axis and reciprocating into the horizontal axis frame Head clamp, characterized in that.
The method of claim 2,

Threads are formed on one side of the first length adjusting part and one side of the second length adjusting part,

A first fixing part inserted into one side of the vertical axis frame to fix the first length adjusting part within the vertical axis frame and inserted into one side of the horizontal axis frame to fix the second length adjusting part within the horizontal axis frame; The head clamp further comprises a second fixing.
The method of claim 2,

The arm is,

A first arm coupled to one end of the transverse axis frame and a second arm coupled to one end of the second length adjustment unit, and a distance between the other end of the first arm and the other end of the second arm is 20 to Head clamp, characterized in that 40 cm.
The method of claim 4, wherein

And the first arm is detachable from the horizontal axis frame, and the second arm is detachable from the second length adjusting part.
The method of claim 4, wherein

And each of the first arm and the second arm is rotatable about the second axis.
The method of claim 4, wherein

And each of the first arm and the second arm has a predetermined curvature and has a curved shape.
The method of claim 1,

Inserting grooves formed on one side of the transverse axis frame and the head bracket for supporting the head before fixing the head by the pin and the insertion hole is installed in the insertion groove is provided on the central side of the lower surface of the head bracket Head clamp, characterized in that.
The method of claim 8,

The head clamp is provided in the center of the lower surface of the head bracket, the head of the head bracket, characterized in that the movable movement of the head bracket including a protrusion which is inserted into the insertion groove is formed in the outer peripheral surface.
The method of claim 8,

And a third fixing tool for fixing the insertion hole coupled to the head bracket in a state of being inserted into the insertion groove.
The method of claim 4, wherein

The pin holder device

And a first pin holder device coupled to the other end of the first arm and a second pin holder device coupled to the other end of the second arm.
The method of claim 11,

The pins are installed at each of both ends of the first pin holder device,

The first pin holder device is a head clamp, characterized in that provided in a curved shape with a predetermined curvature.
The method of claim 12,

The pin is a head clamp, characterized in that configured to be detachable to the first pin holder device.
The method of claim 11,

And a rotating part provided between the first pin holder device and the first arm to rotate the first pin holder device about an axis parallel to the second axis.
The method of claim 11,

And a rotating part provided between the first pin holder device and the first arm to rotate the first pin holder device about an axis parallel to the second axis.
The method of claim 11,

The pin is a head clamp, characterized in that configured to be detachable to the other end of the second pin holder device.
The method of claim 16,

The outer peripheral portion of the second pin holder device is formed with a screw thread is inserted into the other end of the second arm, it is possible to change the insertion length of the pin installed in the second pin holder device by the movement by the screw thread. Head clamp.
The method of claim 1,

At least one of the arm, the length adjusting part, the longitudinal frame, the horizontal frame and the holder device is a head clamp, characterized in that made of duralumin material.