CN214633412U

CN214633412U - Positioning device of body gamma knife

Info

Publication number: CN214633412U
Application number: CN202022733804.6U
Authority: CN
Inventors: 冯德进
Original assignee: Beijing Yundu Interconnection Technology Co ltd
Current assignee: Beijing Yundu Interconnection Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-11-09
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a positioning device of somatic part gamma sword, set up the location bed in CT bed and set up the body model bed on the location bed including removing respectively, be equipped with the thermoplastic film of hugging closely patient's body surface on the body model bed, form the space that holds patient between body model bed and the thermoplastic film, the spout has been seted up respectively to the both sides of location bed, slides respectively along the spout and is equipped with the N type chi or the repeated measuring device that can carry out the multidirectional location in space to patient's focus position. The utility model discloses, increase multidirectional portable positioning device on somatic part gamma sword, the location is more accurate reliable to can effectively avoid patient not fixed unconsciously rock because of the health, thereby make the focus position take place the little change, influence treatment accuracy.

Description

Positioning device of body gamma knife

Technical Field

The utility model relates to a somatic part gamma sword equipment is to patient's location technical field, concretely relates to positioning device of somatic part gamma sword.

Background

The body gamma knife equipment is used for treating body tumors, but the body gamma knife equipment on the market at present has the defect of inaccurate positioning of lesion positions, so that the treatment effect is influenced.

For example, the OUR-QGD body gamma knife uses the negative pressure bag to position the corresponding body part of the patient, but the patient often shakes unconsciously because the negative pressure bag does not fix the body reliably, so that the position of the focus changes, the positioning is inaccurate, and the treatment precision is influenced.

In summary, there is a need for a novel positioning device for a body gamma knife that can effectively prevent the body from shaking, prevent the focus from moving, and affect the therapeutic effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the existing body gamma knife equipment generally has the problems of inaccurate positioning of the focus position of a patient and influence on the treatment effect.

In order to solve the technical problem, the utility model provides a positioning device of somatic part gamma sword, set up the location bed in CT bed and set up in respectively including removing the body model bed on the location bed, the last thermoplastic film who hugs closely patient's body surface that is equipped with of body model bed, form the space that holds patient between body model bed and the thermoplastic film, the spout has been seted up respectively to the both sides of location bed, follows the spout slides respectively and is equipped with N type chi or the repeated measuring device that can carry out the multidirectional location in space to patient's focus position.

In the above scheme, repeated measuring device including the level fixed set up in the slide bar of thermoplastic film top, be equipped with the X coordinate value on the slide bar, follow horizontal slip cover is equipped with the sliding block on the slide bar, wear to be equipped with the probe rod along vertical direction activity in the sliding block, the both sides of probe rod are equipped with the Y coordinate value respectively.

In the above scheme, the repeated measuring device is provided with a plurality of parallel sliding rods arranged at intervals, and each sliding rod is correspondingly provided with one sliding block.

In the scheme, a graduated scale is arranged on the positioning bed in parallel along the sliding direction of the N-shaped scale or the repeated measuring device, and a Z coordinate value is arranged on the graduated scale.

In the scheme, the positioning bed is provided with positioning holes, the body model bed is provided with body model positioning holes, and the positioning holes are matched with and correspond to the body model positioning holes in position and are detachably connected through positioning pins.

In the above scheme, the two side edges of the positioning bed are respectively provided with oppositely arranged separating ribs, the two side edges of the body mold bed are respectively provided with oppositely arranged phantom separating rib holes, and the separating ribs correspond to the phantom separating rib holes in position and are detachably connected with the phantom separating rib holes.

In the scheme, the top surface of the positioning bed is provided with the first parting strip in a protruding mode, and the bottom surface of the body mold bed is provided with the parting strip groove matched with the first parting strip in shape.

In the above scheme, two side edges of the body mould bed are respectively provided with second division bars which are oppositely arranged, and the second division bars are fixedly connected with the thermoplastic film through body mould fixing screws.

In the scheme, N-type ruler fixing devices are respectively arranged on two sides of the N-type ruler, each N-type ruler fixing device is movably arranged on two sides of the positioning bed in a penetrating mode, the N-type ruler fixing devices are vertically arranged in the moving direction of the N-type ruler, the N-type ruler fixing devices are bolts or locking bolts, and locking holes matched with the N-type ruler fixing devices are respectively formed in two sides of the positioning bed.

In the above scheme, the two sliding grooves are arranged in parallel, and the N-type ruler or the repeated measuring device is respectively arranged above the thermoplastic film in a parallel sliding manner.

The utility model discloses, increase multidirectional portable positioning device on somatic part gamma sword, the location is more accurate reliable to can effectively avoid patient not fixed unconsciously rock because of the health, thereby make the focus position take place the little change, influence treatment accuracy.

Drawings

FIG. 1 is a top view of the positioning bed of the present invention;

FIG. 2 is a top view of the middle body mold bed of the present invention;

fig. 3 is a bottom view of the middle body mold bed of the present invention.

FIG. 4 is a top view of the assembled positioning bed and phantom bed of the present invention;

FIG. 5 is a schematic view of the first movement of FIG. 4 with the N-type ruler;

FIG. 6 is a schematic view of the second movement state of FIG. 4 with the N-type ruler;

FIG. 7 is a side view of FIG. 5 within a CT couch;

FIG. 8 is a schematic view of a first movement state of the device of FIG. 4 equipped with a repeat measuring device;

FIG. 9 is a schematic view of a first movement of FIG. 4 with the repeat measuring device;

fig. 10 is a side view of the CT table of fig. 8 when assembled.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The utility model discloses a positioning device of a body gamma knife, which can be realized by the technical personnel in the field by referring to the content and properly improving the technological parameters. It is expressly noted that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be included in the invention and it is apparent to those skilled in the art that the inventive technique can be practiced and applied by modifying or appropriately combining the teachings herein without departing from the spirit and scope of the invention.

In the present application, unless otherwise specified, scientific and technical terms used herein have the meanings as commonly understood by one of ordinary skill in the art.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the description of the present invention, the terms "first" and "second" are only used for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

As shown in fig. 1 to 10, the utility model provides a positioning device for body gamma knife, which comprises a positioning bed 2 disposed in a CT bed 20 and a body model bed 1 disposed on the positioning bed 2, wherein a patient on the positioning bed 2 needs to scan in the CT bed 20 to determine the position of the tumor of the patient, so as to design a treatment plan.

The body model bed 1 is provided with a thermoplastic film 18 which is tightly attached to the surface of the patient, and the material of the body model bed 1 is preferably a carbon fiber plate. The thermoplastic films 18 are used for positioning a patient in a cervico-thoracic region, a patient in a body region and a patient in an abdominal region, and a space for accommodating the patient is formed between the body model bed 1 and the thermoplastic films 18. The two sides of the positioning bed 2 are respectively provided with a sliding chute 19, an N-shaped ruler 3 or a repeated measuring device 4 which can carry out space multidirectional positioning on the focus position of a patient is respectively arranged along the sliding chute 19 in a sliding way, a graduated scale 10 is arranged on the positioning bed 2 in parallel along the sliding direction of the N-shaped ruler 3 or the repeated measuring device 4, and a Z coordinate value is arranged on the graduated scale 10.

Before scanning on the CT bed 20, the patient needs to place the N-type ruler 3 above the tumor position, record the Z coordinate value of the placing position of the scanning CT N-type ruler 3 during scanning through recording the graduated scale 10, and input the Z coordinate value during treatment planning, thereby determining the position before and after the focus.

After the patient is subjected to CT scanning, the repeated measuring device 4 is required to be used for measuring a plurality of mark points on the body surface of the patient, before treatment, the repeated measuring device needs to be used for re-measuring to see whether numerical values are matched or not, and the position change of the patient is ensured to be within an allowable range.

Specifically, repeated measuring device 4 includes that the level is fixed to be set up in the slide bar 23 of thermoplastic film 18 top, is equipped with the X coordinate value on the slide bar 23, and the horizontal slip cover is equipped with sliding block 24 along slide bar 23, and probe 21 is worn to be equipped with along the vertical direction activity in the sliding block 24, and the both sides of probe 21 are equipped with the Y coordinate value respectively.

When in use, the probe rod 21 slides up and down on the slide block 24, and when the tip of the probe rod 21 touches the mark point of the thermoplastic film 18, the Y coordinate value of the probe rod 21 is recorded; then the slide block 24 slides left and right on the slide bar 23, and the X coordinate value on the slide bar 23 is recorded; finally, the measuring device 4 is repeatedly positioned in front of and behind the positioning bed 2, and the Z coordinate value of the recording scale 10 is read. Before the scanning and treatment of the CT bed 20, the coordinate values of several marked points of the thermoplastic film 18 need to be measured, and if the probe 21 is aligned with each marked point, the error of the measured X, Y, Z coordinate values is within 0.5 mm, and the position is considered to be unchanged. The mode realizes the function of flexibly positioning the body gamma knife equipment to the space of the focus position in multiple directions, and greatly improves the positioning precision.

Preferably, the repeated measuring device 4 is provided with a plurality of parallel sliding rods 23 arranged at intervals, and each sliding rod 23 is correspondingly provided with a sliding block 24. The positions of a plurality of focuses can be positioned at the same time.

The positioning bed 2 is provided with a positioning hole 14, the body model bed 1 is provided with a body model positioning hole 15, the positioning hole 14 corresponds to the body model positioning hole 15 in position matching and is detachably connected and installed through the positioning pin 7 when in use, so that the body model bed 1 is connected with the positioning bed 2.

Two side edges of the positioning bed 2 are respectively provided with oppositely arranged separating ribs 8, two side edges of the body mould bed 1 are respectively provided with oppositely arranged body mould separating rib holes 16, the separating ribs 8 correspond to the body mould separating rib holes 16 in position and are detachably connected, and the corresponding positions are matched and correspond to each other when in installation and connection.

The top surface of the positioning bed 2 is provided with a first parting bead 9 in a protruding way, the bottom surface of the body model bed 1 is provided with a parting bead groove 17 matched and jointed with the shape of the first parting bead 9, two side edges of the body model bed 1 are respectively provided with a second parting bead 12 which is oppositely arranged, and the second parting bead 12 is fixedly connected with a thermoplastic film 18 through a body model fixing screw 13, so that the thermoplastic film 18 is supported stably.

N type chi fixing device 11 is equipped with respectively to the both sides of N type chi 3, and each N type chi fixing device 11 activity respectively wears to locate the both sides of location bed 2, and N type chi fixing device 11 arranges the moving direction of N type chi 3 perpendicularly, and N type chi fixing device 11 is preferred to be the bolt or locking bolt, and the lockhole that matches with N type chi fixing device 11 is seted up respectively to the both sides of location bed 2. When the N-type ruler 3 slides to the corresponding focus position, the N-type ruler 3 stops sliding by locking the N-type ruler fixing device 11, so that the change of Z coordinate value of the N-type ruler 3 due to human factor can be effectively prevented, the two sliding grooves 19 are arranged in parallel, and the N-type ruler 3 or the repeated measuring device 4 is arranged above the thermoplastic film 18 in a parallel sliding manner.

The utility model discloses a process that body gamma sword adopts the body model bed 1 of thermoplastic film 18 to fix a position the treatment patient as follows:

1. the body model bed 1 is fixed on the positioning bed 2, the body model bed is flatly placed on the surface of the CT bed 20, the patient lies on the body model bed 1, the thermoplastic film 18 is tightly attached to the body surface of the patient, and the two sides are fixed through the body model fixing strips 12.

2. Several marking points are made on the thermoplastic film 18, X, Y, Z values for each marking point are measured using the repeat measuring device 4, and the repeat measuring device 4 is removed.

3. An N-type ruler 3 is installed, the N-type ruler 3 is fixed by an N-type ruler fixing device 11 at the middle of a tumor part of a patient, and a Z coordinate value is read from a graduated scale 10.

4. A CT scan is performed for the patient.

5. Treatment planning is performed based on the scanned images.

6. Before gamma knife treatment, the probe 21 of the repeated measuring device 4 is used to measure whether the values of the marks X, Y, Z of the thermoplastic film 18 are consistent with the measured values before CT scanning, if the difference between the numbers is within 0.5 mm, the position of the patient can be determined to be consistent with the position during CT scanning, and the fractionated treatment is started.

The thermoplastic film 18 is used to hold the patient's abdomen to reduce the movement of abdominal tumors with the breath. Ensuring the accuracy of treatment.

The beneficial effect in practice is that OUR-QGD model body gamma knife is installed with at least more than 50 at present in China, if each equipment is equipped with the body model positioning bed, the price of the positioning bed is calculated according to 8 ten thousand yuan, and the economic benefit of 400 ten thousand yuan can be obtained. More importantly, each device treats 300 patients every year, 50 devices treat 15000 patients every year, and the vacuum negative pressure bag positioning mode is adopted at present, so that the treatment time of the patients is long, fatigue easily shakes the bodies, the focus positions move, and the treatment effect is influenced. After the device is used for positioning, even if the time for treating the patient is long, the tired body cannot shake, the position of the focus is not changed, the better tumor treatment effect can be ensured, and the device has great social benefit.

The present invention is not limited to the above best mode, and any person should learn the structural changes made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.

Claims

1. The utility model provides a positioning device of somatic part gamma sword, its characterized in that, respectively including remove the location bed that sets up in CT bed and set up in the body model bed on the location bed, be equipped with the thermoplastic film who hugs closely patient's body surface on the body model bed, form the space that holds patient between body model bed and the thermoplastic film, the spout has been seted up respectively to the both sides of location bed, follows the spout slides respectively and is equipped with N type chi or the repeated measuring device that can carry out the multidirectional location in space to patient's focus position.

2. The apparatus for positioning a body gamma knife according to claim 1, wherein the repeated measuring device comprises a slide bar horizontally and fixedly disposed above the thermoplastic film, the slide bar is provided with an X-coordinate value, a slide block is horizontally slidably sleeved on the slide bar, a probe rod is movably penetrated in the slide block along a vertical direction, and two sides of the probe rod are respectively provided with a Y-coordinate value.

3. The apparatus for positioning a body gamma knife according to claim 2 wherein said means for repeatedly measuring comprises a plurality of said parallel spaced apart slide bars, each of said slide bars having a corresponding one of said slide blocks.

4. The apparatus for positioning a body gamma knife according to claim 2, wherein a scale on the positioning bed is provided in parallel with the sliding direction of the N-type scale or the repetition measuring device, and the scale is provided with a Z-coordinate value.

5. The apparatus for positioning a body gamma knife according to claim 1, wherein the positioning bed is provided with positioning holes, and the body model bed is provided with body model positioning holes, the positioning holes are matched with the body model positioning holes and detachably connected through positioning pins.

6. The apparatus for positioning a body gamma knife according to claim 1, wherein the two sides of the positioning bed are respectively provided with oppositely arranged separating ribs, the two sides of the body model bed are respectively provided with oppositely arranged body model separating rib holes, and the separating ribs correspond to the body model separating rib holes in position and are detachably connected.

7. The apparatus for positioning a body gamma knife according to claim 1, wherein the top surface of the positioning bed is provided with a first parting strip in a protruding manner, and the bottom surface of the body model bed is provided with a parting strip groove which is matched with the first parting strip in a shape.

8. The apparatus for positioning a body gamma knife according to claim 1, wherein the two sides of the body model bed are respectively provided with oppositely arranged second division bars, and the second division bars are fixedly connected with the thermoplastic film through body model fixing screws.

9. The apparatus for positioning a body gamma knife according to claim 1, wherein the N-type ruler fixing devices are respectively disposed on two sides of the N-type ruler, each of the N-type ruler fixing devices is movably disposed on two sides of the positioning bed, the N-type ruler fixing devices are vertically disposed in a moving direction of the N-type ruler, the N-type ruler fixing devices are bolts or locking bolts, and the two sides of the positioning bed are respectively disposed with locking holes matched with the N-type ruler fixing devices.

10. The apparatus for positioning a body gamma knife according to claim 1, wherein two of said chutes are arranged in parallel with each other and said N-type ruler or said repeated measuring device is slidably disposed in parallel above said thermoplastic film, respectively.