CN112842375B - Single-side adjustable base and imaging system using same - Google Patents
Single-side adjustable base and imaging system using same Download PDFInfo
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- CN112842375B CN112842375B CN202110244729.3A CN202110244729A CN112842375B CN 112842375 B CN112842375 B CN 112842375B CN 202110244729 A CN202110244729 A CN 202110244729A CN 112842375 B CN112842375 B CN 112842375B
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- bottom plate
- base
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- limiting rod
- groove
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
- A61B6/035—Mechanical aspects of CT
Abstract
The invention provides a single-side adjustable base and an imaging system applying the same, and relates to the field of medical imaging equipment, wherein the single-side adjustable base comprises a limiting base, a first bottom plate and a second bottom plate positioned between the limiting base and the first bottom plate; the first bottom plate is connected with a shifting fork device, and the shifting fork device comprises a first limiting rod and a first control piece for controlling the first limiting rod to move along the width direction of the first bottom plate; the second bottom plate is connected with a carriage device, and the carriage device comprises a second limiting rod and a second control piece for controlling the second limiting rod to move along the length direction of the second bottom plate; a limiting groove is formed in the first bottom plate; the second limiting rod extends to the first bottom plate, penetrates through the limiting groove and is connected with the first limiting rod, and the first limiting rod moves to enable the second bottom plate to rotate relative to the first bottom plate; the second gag lever post removes and drives the relative second bottom plate of first bottom plate and remove in length direction, solves the unable regulation of current most PET equipment base, and partial base adjusts loaded down with trivial details, needs the problem of manual work promotion.
Description
Technical Field
The invention relates to the field of medical imaging equipment, in particular to a base with an adjustable single side.
Background
The PET-CT imaging system organically combines PET and CT, uses the same examination bed and the same image processing workstation, forms a PET-CT fusion image by using a PET image and CT image through an image reconstruction fusion technology, and can reflect pathophysiological changes and morphological structures of focuses at one time through one-time imaging. The PET equipment is typically adjusted to meet the above requirements with reference to the CT equipment coordinate system. Therefore, there is a need to provide an adjustable PET gantry structure that is simple in construction and convenient to operate.
Chinese patent publication No. CN208958155U discloses a multi-axis adjustable PET stand, in which a second base is provided with a kidney-shaped slot, a slidable slider is disposed in the kidney-shaped slot, a rotating shaft is disposed on the slider, and a through hole matched with a bearing is disposed on a third base. In the technology, the third base can rotate relative to the rotating shaft and the second base around the rotating shaft (at the moment, the sliding block and the second base are relatively static), the third base can also slide along the kidney-shaped groove together with the sliding block relative to the second base, and meanwhile, the heights of the four adjusting feet are adjusted to enable the detection ring to move along the vertical direction. However, the operation is complicated in the technology, and the pressure is required to be manually applied when the third base is adjusted to slide or rotate, so that the time and the labor are consumed.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide a single-side adjustable base, which is used for solving the problems that most PET equipment bases in the prior art cannot be adjusted, part of the adjustable bases are complex in operation, and the adjustment can be realized only by manual pushing.
The invention discloses a base with an adjustable single side, which comprises a limit base, a first bottom plate rotatably connected to the limit base and a second bottom plate positioned between the limit base and the first bottom plate;
the first bottom plate is connected with a shifting fork device, and the shifting fork device comprises a first limiting rod which is parallel to the first bottom plate and a first control piece which controls the first limiting rod to move along the width direction of the first bottom plate;
the second bottom plate is connected with a carriage device, and the carriage device comprises a second limiting rod which is perpendicular to the second bottom plate and a second control piece which controls the second limiting rod to move along the length direction of the second bottom plate;
a limiting groove is formed in the first bottom plate at the position opposite to the carriage device;
the second limiting rod extends to the first bottom plate and passes through the limiting groove to be connected with the first limiting rod;
the first control piece enables the first limiting rod to move along the width direction of the first bottom plate and drives the second limiting rod to move along the width direction of the second bottom plate, so that the second bottom plate rotates relative to the first bottom plate and the limiting base; the second control piece enables the second limiting rod to move along the length direction of the second bottom plate, and the limiting groove drives the first bottom plate and the limiting base to move upwards relative to the second bottom plate along the length direction of the second bottom plate.
Preferably, the first control member includes a bearing seat connected with the first bottom plate;
one side of the bearing seat is connected with a cover plate, and the cover plate is matched with the bearing seat to form a groove for enabling one end of the first limiting rod to extend into the groove;
one end of the first limiting rod extending into the groove is connected with the groove through a first screw rod;
the first screw rod passes through the first limiting rod, one end of the first screw rod is rotationally connected with the groove wall of the groove, the other end of the first screw rod extends out of the bearing seat, and when the first screw rod is rotated, the first limiting rod moves along the length direction of the groove.
Preferably, a first pressing block is arranged on one extending side of the first screw rod of the bearing seat;
the first pressing block is provided with a first through hole for placing the end part of the first screw rod.
Preferably, the bearing seat is fixed on the first bottom plate through a first bolt.
Preferably, the second control member comprises a movable seat connected with the second limiting rod, a fixed seat connected with the second bottom plate and a second screw rod for connecting the movable seat and the fixed seat;
the second screw rod penetrates through the fixed seat and is rotationally connected with the fixed seat;
one end of the second screw rod extends to the movable seat and is in threaded connection with the movable seat; the other end of the second screw rod penetrates out of the fixed seat and is used for controlling the second screw rod to rotate;
when the second screw rod rotates, the movable seat moves towards the direction approaching or far away from the fixed seat.
Preferably, a second pressing block is arranged on one side, away from the movable seat, of the fixed seat;
the second pressing block is provided with a second through hole used for placing the second screw rod penetrating out of one end of the fixing table.
Preferably, the movable seat is narrower than the fixed seat and is matched with the fixed seat to form a convex workbench;
a placing groove matched with the movable seat and the fixed seat is formed in the second bottom plate;
one end of the placing groove extends out of the second bottom plate and is used for enabling the movable seat and the fixed seat to enter in sequence;
the second bolts penetrate through the two sides of the fixed table and extend beyond the moving table to be connected with the second bottom plate;
when the fixed table is fixed with the second bottom plate, the second bolt is rotated, so that the movable seat moves between the fixed table and the groove wall on one side of the placing groove opposite to the fixed table.
Preferably, the limit groove is arranged along the width direction of the first bottom plate, and is positioned on the same axis with the joint of the limit base and the first bottom plate;
and a chute for enabling the limiting base to move on the second bottom plate is formed in the joint of the second bottom plate and the limiting base.
Preferably, the limiting groove is arc-shaped, and when the first bottom plate moves around the limiting base in the circumferential direction, the second limiting rod moves around the limiting base in the limiting groove in the circumferential direction;
the first limiting rod is provided with a strip-shaped hole which is arranged along the length direction and used for the second limiting rod to pass through at the joint of the first limiting rod and the second limiting rod.
The invention also provides an imaging system which comprises PET equipment, CT equipment and any base;
the PET equipment is arranged on the first bottom plate of the base and moves or rotates relative to the second bottom plate so as to adjust the position of the PET equipment to be matched with the position of the CT equipment.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1. according to the scheme, the first control piece controls the first limiting rod to move along the width direction of the first bottom plate, so that the first bottom plate and the second bottom plate rotate, the second control piece controls the second limiting rod to move along the length direction of the second bottom plate, the first bottom plate and the second point move relatively, the first bottom plate and the second point are matched with each other, the relative positions of the first bottom plate and the second bottom plate are adjusted, the operation is simple, manual pushing is not needed, and time and labor are saved;
2. in this scheme, the removal of the first gag lever post of rotation control of adopting first bolt adopts the removal of the rotation control second gag lever post of second bolt, and avoids first bolt and second bolt to expose in external environment through first briquetting and second briquetting respectively, improves the stability after first bottom plate and the second bottom plate position adjustment, reduces other factors and leads to the change once more of position after accomplishing the adjustment process, is favorable to ensureing to obtain the accuracy of image.
Drawings
FIG. 1 is a schematic view of a single side adjustable base according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a structure for representing the connection relationship between a fork device and a carriage device in a first embodiment of a single-side adjustable base according to the present invention;
FIG. 3 is a schematic view of a shifting fork device according to a first embodiment of a single-side adjustable base;
FIG. 4 is a schematic view of a structure of a single-sided adjustable base for embodying a first control member according to a first embodiment of the present invention;
FIG. 5 is a schematic view of a carriage assembly according to a first embodiment of a single-sided adjustable base of the present invention;
fig. 6 is a schematic structural diagram of a single-side adjustable base for embodying a second control member according to a first embodiment of the present invention.
Reference numerals: 1-a limit base; 2-a first base plate; 21-a first limiting rod; 211-bar-shaped holes; 22-a first control; 221-a bearing seat; 222-cover plate; 223-groove; 224-a first screw; 225-a first briquetting; 226-a first via; 227—a first bolt; 3-a second base plate; 31-a second limit rod; 32-a second control member; 321-a movable seat; 322-fixing seat; 323-a second screw; 324-a second briquetting; 325-a second through hole; 326-a second bolt; 33-placing grooves; 34. a chute; 4-limit groove.
Detailed Description
Advantages of the invention are further illustrated in the following description, taken in conjunction with the accompanying drawings and detailed description.
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
Embodiment one: the present embodiment provides a unilaterally adjustable base, referring to fig. 1 and 2, for use with a PET gantry to adjust the position of a PCT machine in a PET/CT system, including a limit base 1, a first bottom plate 2 rotatably connected to the limit base 1, and a second bottom plate 3 located between the limit base 1 and the first bottom plate 2 and slidingly connected to the limit base 1, wherein the limit base 1 passes through the centers of the first bottom plate 2 and the second bottom plate 3 to be connected to the first bottom plate 2 and the second bottom plate 3, the first bottom plate 2 can rotate relative to the limit base 1, and the limit base 1 and the first bottom plate 2 can move relative to the second bottom plate 3. The first bottom plate 2 is connected with a shifting fork device, the shifting fork device comprises a first limiting rod 21 which is parallel to the first bottom plate 2, and a first control piece 22 which controls the first limiting rod 21 to move along the width direction of the first bottom plate, and the shifting fork device is used for controlling the rotation of the first bottom plate 2, so that the first bottom plate 2 and the second bottom plate 3 can rotate relatively. The second bottom plate 3 is connected with a carriage device, the carriage device comprises a second limiting rod 31 which is perpendicular to the second bottom plate and a second control piece 32 which controls the second limiting rod 31 to move along the length direction of the second bottom plate 3, the carriage device is used for controlling the first bottom plate 2 and the limiting base 1 to synchronously move with the second bottom plate 3 in the horizontal direction, and the carriage device is matched with the shifting fork device to realize the relative movement and rotation between the first bottom plate 2 and the second bottom plate 3.
Based on the above, in order to enable the fork device and the carriage device to cooperatively control the actions of the first bottom plate 2 and the second bottom plate 3, the first bottom plate 2 is provided with a limiting groove 4 at a position opposite to the carriage device, and the second limiting rod 31 extends to the first bottom plate 2 and passes through the limiting groove 4 to be connected with the first limiting rod 21. The first bottom plate 2 and the second bottom plate 3 are connected through the fixation of the first limiting rod 21 and the second limiting rod 31, and the first bottom plate 2 and the second bottom plate 3 are driven to move or rotate relatively through controlling the first limiting rod 21 and the second limiting rod 31. Specifically, the first control piece 22 moves the first limiting rod 21 along the width direction of the first bottom plate 2, drives the second limiting rod 31 to move along the width direction of the second bottom plate 3, and enables the second bottom plate 3 to rotate relative to the first bottom plate 2 and the limiting base 1; the second control piece 32 is used for enabling the second limiting rod 31 to move along the length direction of the second bottom plate 3, and the limiting groove 4 is used for driving the first bottom plate 2 and the limiting base 1 to move along the length direction of the second bottom plate 3 relative to the second bottom plate 3.
In the above embodiment, as a further explanation, when the first limiting rod 21 moves on the first bottom plate 2 along the width direction, the first limiting rod 21 and the second limiting rod 31 are fixed, so that the second limiting rod 31 can be driven to move synchronously, and the second limiting rod 31 is limited to move along the length direction of the second bottom plate 3 and cannot move along the width direction of the second bottom plate 3, so that the second bottom plate 3 is driven to move along the width direction, and the second bottom plate 3 and the limiting base 1 can only slide and cannot rotate, so that the second bottom plate 3 and the limiting base 1 can be driven to rotate synchronously relative to the first bottom plate 2, and the adjustment of the PET frame in the circumferential direction is realized. When the second limiting rod 31 moves on the second bottom plate 3 along the length direction, the first limiting rod 21 can be driven to move synchronously, but the first limiting rod 21 is limited to move only along the width direction of the first bottom plate 2, so that the first bottom plate 2 is driven to move along the length direction of the first bottom plate 2, and the first bottom plate 2 is rotationally connected with the limiting base 1, so that the limiting base 1 and the first bottom plate 2 synchronously move relative to the second bottom plate 3 along the length direction.
In a preferred embodiment, referring to fig. 1, the above-mentioned limiting groove 4 is disposed along the width direction of the first bottom plate 2, when the second limiting rod 32 passes through the limiting groove 4, the second limiting rod can move in the limiting groove 4, but is limited by the limiting groove 4 and cannot move along the length direction of the first bottom plate 2, so as to ensure that when the first limiting rod 21 moves, the second limiting rod 31 can be driven to move, and when the second limiting rod 31 moves, the first bottom plate 2 can be driven to move. The spacing groove 4 can be set to multiple shapes, and the length is not less than the movable length of the first spacing rod 31, and the junction of the spacing groove 4 and the spacing base 1 and the first bottom plate 2 is on the same axis, namely, the shifting fork device and the carriage device are respectively arranged on the middle lines of the first bottom plate 2 and the second bottom plate 3, so that the stability in the operation process is further improved.
As a further preferred feature, the spacing groove 4 is configured as an arc, and the second spacing bar 31 moves circumferentially around the spacing base 1 within the spacing groove 4 when the first base plate 2 moves circumferentially around the spacing base 1. Through setting up to curved spacing groove 4, can increase first bottom plate 2 and the relative pivoted angle of second bottom plate 3, at this moment, set up the bar hole 211 that sets up for along first gag lever post 21 length direction in the junction with second gag lever post 31 on first gag lever post 21, for second gag lever post 31 passes, and can follow first gag lever post 21 length direction and remove, the length of this bar hole 211 can be according to second gag lever post 31 rotatable angle (or spacing groove length, radian) is confirmed, by being restricted to follow first gag lever post 21 width direction removal, in order to reduce the condition that second gag lever post 31 is restricted by first gag lever post 21 around spacing base 1 rotation in-process in the arc spacing groove 4.
In a preferred embodiment, referring to fig. 3 and 4, the first control member 22 includes a carrying seat 221 connected to the first bottom plate 2, the carrying seat 221 is fixed on the first bottom plate 2 by a first bolt 224, a through slot (not labeled in the drawing) disposed along a length direction is disposed inside the carrying seat 221, one side of the carrying seat 221 is connected with a cover plate 222, the cover plate 222 and the carrying seat 221 (i.e. the cover plate 222 and the through slot) cooperate to form a groove 223 for extending one end of the first limiting rod 21 into the groove 223, one end of the first limiting rod 21 extending into the groove 223 is connected with the groove 223 by a first screw 224, the first screw 224 passes through the first limiting rod 21, one end of the first screw 224 is connected with an inner groove wall of the groove 223 in a rotating or threaded manner, the other end extends out of the carrying seat 221, when the first screw 224 is rotated, the first limiting rod 21 moves along the length direction of the groove 223, the carrying seat 221 is mounted on the first bottom plate 2, so as to enable the first limiting rod 21 to move along the length direction of the first bottom plate 2, in the process of mounting the first control member 22, one end of the first limiting rod 21 can be inserted into the first bottom plate 2, and then the first screw 21 can be sequentially rotated, and then the first screw 21 is inserted into the groove 223, and the other end of the groove is turned, so as to be connected with the first screw 21, and then turned, and the other end is capable of being turned, and opposite to the first side and the first side wall, and the first limiting rod 21.
In the above embodiment, preferably, the carrying seat 221 is provided with the first pressing block 225 on the extending side of the first screw 224, the first pressing block 225 is provided with the first through hole 226 for placing the end of the first screw 224, the first pressing block 225 is used for surrounding the portion of the first screw 224 extending out of the carrying seat 221, so as to solve the problem that the portion of the first screw 224 for controlling is directly exposed outside, reduce the problem that after the relative rotation of the first bottom plate 2 and the second bottom plate 3 is completed, the external factors cause the first screw 224 to rotate to affect the PET frame position, and cause inaccurate images, when the first screw 224 needs to be adjusted, a tool matched with the first screw 224 can be used for extending into the first through hole 225 to adjust, for example, but not by way of limitation, if the end of the first screw 224 is provided with a screwing interface (internal hexagonal hole), and an internal hexagonal wrench is used for extending into the first through hole 225 to control the rotation of the first screw.
In a preferred embodiment, referring to fig. 5 and 6, the second control member 32 includes a moving seat 321 connected to the second limit bar 31, a fixed seat 322 connected to the second base plate 3, and a second screw 323 for connecting the moving seat 321 and the fixed seat 322, the second screw 323 further being for controlling a distance between the moving seat 321 and the fixed seat 322, specifically, the second screw 323 passing through the fixed seat 322 and being rotatably connected to the fixed seat 322 while one end of the second screw 323 extends to the moving seat 321, is threadedly connected to the moving seat 321, and the other end passes out of the fixed seat 322 for controlling rotation of the second screw 323; when the second screw 323 rotates, the moving seat 321 moves towards a direction close to or far away from the fixed seat 322, when the fixed seat 322 is fixed on the second bottom plate 3, the length direction of the second screw 323 is consistent with the length direction of the second bottom plate 3, and when the second screw 323 rotates, the moving seat 321 can be driven to move along the length direction of the second bottom plate 3.
In the above embodiment, preferably, the fixed seat 322 is provided with the second pressing block 324 on the side facing away from the moving seat 321, the second pressing block 324 is provided with the second through hole 325 for the second screw 323 to penetrate out of the end of one end of the fixed seat 322, the function of the second pressing block 324 is similar to that of the first pressing block 225 in the first control member 22, the second pressing block 324 is used for surrounding the portion of the second screw 323 extending out of the fixed seat 322, so as to reduce the direct exposure of the second screw 323 to the external environment, and the situation that the second screw 323 is touched by mistake after adjustment further improves the stability of the position of the adjusted PET rack, and the position of the second pressing block 324 is consistent with that of the first pressing block 225.
In a preferred embodiment, to further facilitate the fixing of the second control member 22 to the second base plate 32, the movable base 321 is narrower than the fixed base 322, and is configured to cooperate with the fixed base 322 to form a convex working platform, the second base plate 3 is provided with a positioning groove 33 (e.g. fig. 1 is used to partially or completely embed the convex working platform) cooperating with the movable base 321 and the fixed base 322, the positioning groove 33 is also configured to cooperate to form a convex working platform, one end of the positioning groove 33 extends out of the second base plate 3, so that the length of the area of the positioning groove 33 for placing the movable base 321 and the fixed base 322 is not less than the length of the movable base 321 when the movable base 321 is located at the farthest position of the fixed base 322, and at the same time, the movable base 321 is limited between the fixed base 322 and the wall of the positioning groove 33 by passing through the two sides of the fixed base 322 via the second bolts 326, and when the fixed base 322 is fixed to the second base plate 3, the second screw 323 is rotated to move the movable base 321 between the fixed base 322 and the wall of the positioning groove 33 on one side of the fixed base 322 and the opposite to the fixed base 322. In addition to the above-mentioned manner of connecting the fixing base 322 to the second base plate 3 by the second bolts 326, other manners of fixing the fixing base 322 to the second base plate 3 may be adopted, such as providing an elastic clamping block.
In the above embodiment, preferably, referring to fig. 1, 5 and 6, one side of the movable base 321 away from the fixed base 322 is configured as an arc surface, when the second screw 323 is rotated to move the movable base 321 to the maximum distance from the fixed base 322, one side of the movable base 321 away from the fixed base 322 is in contact with the wall of the placement groove 33, and one side of the placement groove 33 opposite to the movable base 321 is also correspondingly configured as an arc surface, so as to reduce damage to the movable base 321 or the placement groove 33 caused by contact between the movable base 321 and the wall of the placement groove 33, thereby improving safety and service life in use.
In a preferred embodiment, in this embodiment, the sliding between the second bottom plate 3 and the limit base 1 is realized by providing a sliding slot 34 on the second bottom plate 3 at the connection position with the limit base 1, where the sliding slot 34 is used for enabling the limit base 1 to move on the second bottom plate 3, when the second screw 323 rotates to control the first bottom plate 2 and the second bottom plate 3 to move relatively, the limit base 1 and the first bottom plate 2 move synchronously in the sliding slot 34, and the limit base 1 can slide on the second bottom plate 3 through other existing connectors, and it is noted that the length of the sliding slot 34 is not less than the distance that the second screw 323 controls the second limit rod 31 to move, so as to reduce the situation that the relative position of the first bottom plate 2 and the second bottom plate 3 cannot be adjusted due to the limitation of the sliding slot 34.
In this embodiment, in the use process of the single-side adjustable base, referring to fig. 1-6, the second bottom plate 3 is fixed, meanwhile, the PET frame is fixed on the first bottom plate 2 of the adjustable base, and the position to be adjusted is confirmed according to the coordinate axis of the CT machine, when a certain angle is required to rotate, the tool stretches into the first through hole 226 to rotate the first screw 224, so as to drive the first limiting rod 21 to move in the length direction of the first bottom plate 2, and further drive the second bottom plate 3 to rotate relative to the first bottom plate 2 through the second limiting rod 31, and as the first bottom plate 2 is fixed, the second bottom plate 3 can be driven to move to a proper position and then stop; when a certain distance is required to be horizontally adjusted, the tool stretches into the second through hole 325 to rotate the second screw 323, so that the second limiting rod 31 is driven to move in the length direction of the second bottom plate 3, and the first bottom plate 2 is driven to horizontally move to a proper position through the limiting groove 4 to stop. The unilateral adjustable base in this scheme can control the adjustment of first bottom plate 2 and second bottom plate 3 relative position through first screw rod 224 and second screw rod 323, and easy and simple to handle just does not need the manpower to promote and can realize adjusting, labour saving and time saving. Meanwhile, the first screw 224 and the second screw 323 respectively correspond to the limit of the first limit rod 21 and the second limit rod 31, so that after the relative positions of the first bottom plate 2 and the second bottom plate 3 are adjusted, the stability is higher in the use process, and the position cannot be moved again due to external factors, thereby being beneficial to ensuring the accuracy of the subsequent obtained images.
Embodiment two: the present embodiment provides an imaging system including a PET apparatus, a CT apparatus, and the base described in the first embodiment (refer to fig. 1 to 6); the PET equipment (or the rack) is arranged on the first bottom plate 2 of the base, can move or rotate relative to the second bottom plate 3 to adjust the position of the PET equipment to match with the position of the CT equipment, and when in actual use, the second bottom plate 3 can be fixed at the position relative to the CT equipment, and then the coordinate axis of the PET equipment is kept consistent with the coordinate axis of the CT equipment through the adjustment of the first screw 224 or the second screw 323, so that an accurate image is obtained, the PET equipment is adjusted without applying pressure manually, time and labor are saved, and the stability is higher.
It should be noted that the embodiments of the present invention are preferred and not limited in any way, and any person skilled in the art may make use of the above-disclosed technical content to change or modify the same into equivalent effective embodiments without departing from the technical scope of the present invention, and any modification or equivalent change and modification of the above-described embodiments according to the technical substance of the present invention still falls within the scope of the technical scope of the present invention.
Claims (8)
1. A unilaterally adjustable mount, characterized by:
the device comprises a limit base, a first bottom plate rotatably connected to the limit base and a second bottom plate positioned between the limit base and the first bottom plate;
the first bottom plate is connected with a shifting fork device, and the shifting fork device comprises a first limiting rod which is parallel to the first bottom plate and a first control piece which controls the first limiting rod to move along the width direction of the first bottom plate;
the second bottom plate is connected with a carriage device, and the carriage device comprises a second limiting rod which is perpendicular to the second bottom plate and a second control piece which controls the second limiting rod to move along the length direction of the second bottom plate;
a limiting groove is formed in the first bottom plate at the position opposite to the carriage device;
the second limiting rod extends to the first bottom plate and passes through the limiting groove to be connected with the first limiting rod;
the first control piece enables the first limiting rod to move along the width direction of the first bottom plate and drives the second limiting rod to move along the width direction of the second bottom plate, so that the second bottom plate rotates relative to the first bottom plate and the limiting base; the second control piece enables the second limiting rod to move along the length direction of the second bottom plate, and the limiting groove drives the first bottom plate and the limiting base to move along the length direction of the second bottom plate relative to the second bottom plate;
the limiting groove is arranged along the width direction of the first bottom plate and is positioned on the same axis with the connecting position of the limiting base and the first bottom plate;
the second bottom plate is provided with a chute for enabling the limiting base to move on the second bottom plate at the joint of the limiting base; the length of the sliding groove is not lower than the distance for the second control piece to control the second limiting rod to move, so that the situation that the relative position of the first bottom plate and the second bottom plate cannot be adjusted due to the limitation of the sliding groove is reduced;
the limiting groove is arc-shaped, and when the first bottom plate moves around the limiting base in the circumferential direction, the second limiting rod moves around the limiting base in the limiting groove in the circumferential direction;
the first limiting rod is provided with a strip-shaped hole which is arranged along the length direction and used for the second limiting rod to pass through at the joint of the first limiting rod and the second limiting rod.
2. The base of claim 1, wherein:
the first control piece comprises a bearing seat connected with the first bottom plate;
one side of the bearing seat is connected with a cover plate, and the cover plate is matched with the bearing seat to form a groove for enabling one end of the first limiting rod to extend into the groove;
one end of the first limiting rod extending into the groove is connected with the groove through a first screw rod;
the first screw rod passes through the first limiting rod, one end of the first screw rod is connected with the inner groove wall of the groove, the other end of the first screw rod extends out of the bearing seat, and when the first screw rod is rotated, the first limiting rod moves along the length direction of the groove.
3. A base according to claim 2, characterized in that:
the bearing seat is provided with a first pressing block at one side of the first screw extending out;
the first pressing block is provided with a first through hole for placing the end part of the first screw rod.
4. A base according to claim 2, characterized in that:
the bearing seat is fixed on the first bottom plate through a first bolt.
5. The base of claim 1, wherein:
the second control piece comprises a movable seat connected with the second limiting rod, a fixed seat connected with the second bottom plate and a second screw rod used for connecting the movable seat and the fixed seat;
the second screw rod penetrates through the fixed seat and is rotationally connected with the fixed seat;
one end of the second screw rod extends to the movable seat and is in threaded connection with the movable seat; the other end of the second screw rod penetrates out of the fixed seat and is used for controlling the second screw rod to rotate;
when the second screw rod rotates, the movable seat moves towards the direction approaching or far away from the fixed seat.
6. The base of claim 5, wherein:
a second pressing block is arranged on one side, away from the movable seat, of the fixed seat;
the second pressing block is provided with a second through hole used for placing the second screw rod penetrating out of one end of the fixing seat.
7. The base of claim 5, wherein:
the movable seat is narrower than the fixed seat and is matched with the fixed seat to form a convex workbench;
a placing groove matched with the movable seat and the fixed seat is formed in the second bottom plate;
one end of the placing groove extends out of the second bottom plate and is used for enabling the movable seat and the fixed seat to enter in sequence;
the second bolts penetrate through the two sides of the fixed seat and extend out of the movable seat to be connected with the second bottom plate;
when the fixed seat is fixed with the second bottom plate, the second bolt is rotated, so that the movable seat moves between the fixed seat and the groove wall on one side of the placing groove opposite to the fixed seat.
8. An imaging system, characterized by:
comprising a PET device, a CT device and a base according to any one of the preceding claims 1-7;
the PET equipment is arranged on the first bottom plate of the base and moves or rotates relative to the second bottom plate so as to adjust the position of the PET equipment to be matched with the position of the CT equipment.
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| CN112842375A (en) | 2021-05-28 |
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