CN113456252A

CN113456252A - Medical light chopper

Info

Publication number: CN113456252A
Application number: CN202110739799.6A
Authority: CN
Inventors: 盖立武; 刘彦云; 黄献琛; 李宗堂
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-10-01
Anticipated expiration: 2041-06-30
Also published as: CN113456252B

Abstract

The invention provides a medical light chopper which comprises a light-shading box body, wherein a blood vessel observation port is formed in the middle of the top surface of the light-shading box body, two automatic light-shading assemblies which are arranged in the front and back are arranged in an inner cavity, the automatic light-shading assembly positioned on the front side comprises a driving shaft, a driven shaft and a gear baffle shaft, a main gear clamping sleeve is sleeved outside the middle section of the driving shaft, a main gear is sleeved outside the main gear clamping sleeve, a limiting part for driving the main gear clamping sleeve to slide left and right is arranged on the front side of the driving shaft, the driven shaft is arranged above the rear side of the driving shaft, a plurality of auxiliary gears are uniformly distributed on the driven shaft from left to right, the gear baffle shaft is arranged on the rear side of the driving shaft, limiting cam groups are uniformly distributed on the gear baffle shaft from left to right, and light-shading plates which are the same in number and correspond to the positions with the auxiliary gears are uniformly distributed on the top of the inner cavity of the light-shading box body from left to right. The invention adopts a unique transmission mechanism, can automatically shade the periphery of the blood vessel to be observed, is convenient for doctors to quickly and efficiently observe the blood vessel, and has good applicability.

Description

Medical light chopper

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical light chopper.

Background

With the development of modern medical technology, the use of medical equipment plays a crucial role in accurately diagnosing the state of an illness by a doctor. At present, a light chopper capable of accurately observing the trend of blood vessels of a patient is clinically lacked.

Disclosure of Invention

In order to solve the problems, the invention discloses a medical light chopper which can automatically shade the periphery of a blood vessel to be observed by using a smart mechanical structure, is convenient for a doctor to observe the blood vessel quickly and efficiently and has good applicability.

The specific scheme is as follows:

a medical shutter characterized by: the blood vessel shading device comprises a shading box body, wherein a penetrating blood vessel observation port is downwards formed in the middle of the top surface of the shading box body, two automatic shading assemblies which are symmetrically arranged front and back are arranged in an inner cavity, the automatic shading assemblies positioned on the front side comprise a driving shaft, a driven shaft and a gear baffle shaft which are horizontally and mutually parallel, the driving shaft, the driven shaft and the gear baffle shaft can be supported in the shading box body in a rotating manner, the driving shaft can slide left and right, a main motor for driving the driving shaft to rotate is installed at the end part of the driving shaft in a matching manner, a main gear clamping sleeve is fixedly sleeved outside the middle section of the driving shaft, a main gear which can slide left and right along the main gear clamping sleeve and can synchronously rotate is sleeved outside the main gear clamping sleeve, a limiting part for driving the main gear clamping sleeve to slide left and right is arranged on the front side of the driving shaft, the limiting part comprises a transverse rod which is parallel to the driving shaft, and connecting rods which are symmetrically arranged at the two ends of the transverse rod and are perpendicular to the transverse rod, the middle part of the front end of the cross rod is provided with a driving rod vertical to the cross rod, one end of the connecting rod is fixedly connected with the end part of the cross rod, the other end of the connecting rod is fixed at the end part of the main gear clamping sleeve, the front end of the driving rod is connected with a driving cam in a matching way, a strip-shaped sliding hole used for limiting the end part of the driving rod is arranged on a convex part of the driving cam, a first stepping motor is arranged at the front side of the driving cam in a matching way, a driven shaft is arranged above the rear side of the driving shaft, a plurality of auxiliary gears which are rotationally connected with the driven shaft are uniformly distributed on the driven shaft from left to right, a gear baffle shaft is arranged at the rear side of the driving shaft, a limiting cam group which is the same as the auxiliary gears in quantity and corresponds to the position is uniformly distributed on the gear baffle shaft from left to right, the end part of the gear baffle shaft is connected with a second stepping motor in a matching way, the limiting cam group comprises two limiting cams which are symmetrically arranged from left to right, and a gear limiting gap is reserved between the two limiting cams, the gear limiting gap corresponds to the position of the pinion, light shielding plates which are the same as the pinion in quantity and correspond to the position are uniformly distributed on the top of the inner cavity of the light shielding box body from left to right, racks meshed with the pinion are arranged at the bottoms of the light shielding plates, and the two adjacent light shielding plates are attached and slide.

As a further improvement of the invention, key grooves are uniformly formed in the end part of the driving shaft along the circumferential direction, the key grooves are formed in the axial direction of the driving shaft, a key groove shaft sleeve capable of sliding left and right along the key grooves is arranged outside the end part of the driving shaft in a matched mode, and a bearing is sleeved outside the key groove shaft sleeve.

As a further improvement of the invention, the end part of the motor shaft of the main motor is provided with a connecting sleeve in a matching way, keys matched with the key grooves at the end part of the driving shaft are uniformly distributed in the connecting sleeve along the circumferential direction, and the end part of the rotating shaft can slide left and right in the connecting sleeve and can synchronously rotate along with the connecting sleeve.

As a further improvement of the invention, the outer side of the main gear cutting sleeve is uniformly provided with a groove group along the axial direction, the section of the main gear cutting sleeve is square, the groove group comprises grooves uniformly arranged at four top corners of the outer side of the main gear cutting sleeve along the circumferential direction, the inner sides of the left side and the right side of the main gear are provided with card groups, the card groups comprise four cards uniformly distributed along the circumferential direction, and the cards can slide along the outer side of the main gear cutting sleeve and can be clamped in the grooves in a matching manner.

As a further improvement of the present invention, four top corners of the main gear ferrule are straight surfaces.

As a further improvement of the invention, a limit clamping rod arranged in parallel with the driving shaft is arranged below the driving shaft, main gear clamping pieces which are the same in number with gear limit gaps and correspond to the gear limit gaps in position are uniformly distributed on the top of the limit clamping rod from left to right, and a lifting cylinder is connected in the middle of the bottom surface of the limit clamping rod in a matching manner.

As a further improvement of the invention, the shading plate comprises a left rectangular sliding plate and a right rectangular sliding plate which are arranged left and right, the left rectangular sliding plate is horizontally arranged, the bottom of the left side of the left rectangular sliding plate is provided with a left sliding strip which is longitudinally arranged, the right rectangular sliding plate is horizontally arranged, the tops of the right two sides of the right rectangular sliding plate are provided with a right sliding strip which is longitudinally arranged, the bottom of the right side of the left rectangular sliding plate is fixedly connected with the top of the left side of the right rectangular sliding plate, in two adjacent shading plates, the right sliding strip positioned on the left shading plate is in sliding support against the right side of the left sliding strip positioned on the right shading plate, and the bottom of the right rectangular sliding plate is provided with a rack.

As a further improvement of the invention, the number of the auxiliary gears, the limit cam group, the light screen and the main gear clamping piece is four respectively.

As a further improvement of the invention, bearings are respectively sleeved at two ends of the driven shaft and the gear baffle shaft.

Compared with the prior art, the invention has the beneficial effects that: by adopting the unique transmission mechanism, the periphery of the blood vessel to be observed can be automatically shielded, so that a doctor can observe the blood vessel quickly and efficiently, and the special blood vessel shade has good applicability.

Drawings

FIG. 1 is an external schematic view of the present invention.

Fig. 2 is a schematic structural diagram of two automatic light-shielding assemblies according to the present invention.

Fig. 3 is a schematic structural view of the automatic shade assembly at the front side according to the present invention.

Fig. 4 is a partial enlarged view of the gear baffle shaft of the present invention.

FIG. 5 is an assembled view of the end of the drive shaft of the present invention.

FIG. 6 is a sliding assembly diagram of two adjacent light-shielding plates according to the present invention.

Fig. 7 is a state diagram of the present invention in use.

List of reference numerals:

1-a shading box body, 2-a blood vessel observation opening, 3-a driving shaft, 4-a driven shaft, 5-a gear baffle shaft, 6-a limiting clamping rod, 7-a main motor, 8-a main gear clamping sleeve, 9-a main gear, 10-a limiting part, 11-a driving cam, 12-a first stepping motor, 13-a pinion, 14-a second stepping motor, 15-a limiting cam, 16-a shading plate, 17-a rack, 18-a shaft sleeve, 19-a clamping piece, 20-a main gear clamping piece, 21-a lifting cylinder and 22-a blood vessel.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.

As shown in the figure, a medical light chopper comprises a light-shading box body 1, wherein the middle part of the top surface of the light-shading box body 1 is downwards provided with a penetrating blood vessel observation port 2, an inner cavity is internally provided with two automatic light-shading components which are symmetrically arranged front and back, wherein the automatic light-shading component positioned at the front side comprises a driving shaft 3, a driven shaft 4 and a gear baffle shaft 5 which are horizontally and mutually parallel, the driving shaft 3, the driven shaft 4 and the gear baffle shaft 5 can be rotatably supported in the light-shading box body 1, wherein the driving shaft 3 can also slide left and right, the end part of the driving shaft 3 is matched and provided with a main motor 7 for driving the driving shaft to rotate, the middle section of the driving shaft 3 is fixedly sleeved with a main gear cutting sleeve 8, the main gear cutting sleeve 8 is sleeved with a main gear 9 which can slide left and right and synchronously rotate along the main gear cutting sleeve 8, the front side of the driving shaft 3 is provided with a limiting part 10 for driving the main gear cutting sleeve 8 to slide left and right, the limiting part 10 comprises a cross bar parallel to the driving shaft 3, connecting rods perpendicular to the cross bar are symmetrically arranged at two ends of the cross bar, a driving rod perpendicular to the cross bar is arranged in the middle of the front end of the cross bar, one end of the connecting rod is fixedly connected with the end part of the cross bar, the other end of the connecting rod is fixed at the end part of the main gear clamping sleeve 8, the front end of the driving rod is connected with a driving cam 11 in a matching way, a strip-shaped sliding hole used for limiting the end part of the driving rod is formed in the protruding part of the driving cam 11, a first stepping motor 12 is installed at the front side of the driving cam 11 in a matching way, a driven shaft 4 is arranged above the rear side of the driving shaft 3, a plurality of auxiliary gears 13 in rotating connection with the driven shaft 4 are evenly distributed from left to right, a gear baffle shaft 5 is arranged at the rear side of the driving shaft 3, limiting cam groups which are the same as the auxiliary gears 13 in number and correspond to the positions are evenly distributed from left to right on the gear baffle shaft 5, and the end part of the gear baffle shaft 5 is connected with a second stepping motor 14 in a matching way, the limiting cam group comprises two limiting cams 15 which are arranged in bilateral symmetry, a gear limiting gap is reserved between the two limiting cams 15, the gear limiting gap corresponds to the position of the pinion 13, light shielding plates 16 which are the same as the pinion 13 in quantity and correspond to the position are uniformly distributed on the top of the inner cavity of the light shielding box body 1 from left to right, racks 17 meshed with the pinion 13 are arranged at the bottoms of the light shielding plates 16, and the two adjacent light shielding plates 16 are attached and slide.

In this embodiment, the tip of driving shaft 3 has evenly seted up the keyway along the circumferencial direction, and the keyway sets up along the axis direction of driving shaft 3, and the tip of driving shaft 3 is outer to be installed in the cooperation and to follow keyway horizontal slip's keyway axle sleeve 18, and keyway axle sleeve 18 overcoat is equipped with the bearing.

In this embodiment, the end of the motor shaft of the main motor 7 is provided with a connecting sleeve in a matching manner, keys matched with the key grooves at the end of the driving shaft 3 are uniformly distributed in the connecting sleeve along the circumferential direction, and the end of the rotating shaft 3 can slide left and right and is arranged in the connecting sleeve and can synchronously rotate along with the connecting sleeve.

In this embodiment, the card slot group has evenly been seted up along the axis direction in the outside of master gear cutting ferrule 8, and the cross-section of master gear cutting ferrule 8 is the square, card slot group is including evenly seting up the draw-in groove in four apex angles departments in the master gear cutting ferrule 8 outside along the circumferencial direction, the inboard of master gear 9 left and right sides face is equipped with the card group, the card group includes four cards 19 along circumferencial direction evenly distributed, card 19 can slide along the lateral surface of master gear cutting ferrule 8, and can cooperate the joint in the draw-in groove, four apex angles of master gear cutting ferrule 8 are the straight surface.

In this embodiment, the lower part of the driving shaft 3 is provided with a limiting clamping rod 6 arranged in parallel, the top of the limiting clamping rod 6 is uniformly provided with main gear clamping pieces 20 which have the same number with the gear limiting gaps and correspond to the gear limiting gaps in position from left to right, and the middle part of the bottom surface of the main gear clamping pieces is connected with a lifting cylinder 21 in a matching manner.

In this embodiment, the light screen includes left rectangle slide and the right rectangle slide that sets up about two, left side rectangle slide level sets up, its left side bottom is equipped with the left draw runner of vertical setting, right side rectangle slide level sets up, its right both sides top is equipped with the right draw runner of vertical setting, the right side bottom of left side rectangle slide and the left side top fixed connection of right rectangle slide, in two adjacent light screens, the right draw runner that is located the left side light screen slides and supports the right side that leans on at the left draw runner that is located the right side light screen, the bottom of right side rectangle slide is equipped with the rack, in addition, the one end that the light screen is close to blood vessel observation mouth middle part is equipped with the inductor.

In this embodiment, the number of the secondary gears 13, the limit cam set, the light screen 16 and the main gear fastener 20 is four, and the two ends of the driven shaft 4 and the gear baffle shaft 5 are respectively sleeved with bearings.

The working principle of the invention is as follows, taking a front side automatic shading component as an example, in an initial state, each shading sheet is in a retraction state, and the main gear is meshed with the pinion at the leftmost end, when the invention works, the main motor drives the driving shaft to rotate forwards, the clamping groove on the main gear clamping sleeve clamps the clamping sheet of the main gear, so that the main gear rotates synchronously with the driving shaft, the pinion rotates under the driving of the main gear, further drives the shading sheet at the leftmost end to move towards the middle part of the blood vessel observation opening, after the end part of the shading sheet moves to the edge of the blood vessel 22 to be observed, the sensor at the end part sends a signal to control the main motor to stop rotating, then the lifting cylinder controls the limiting clamping rod to lift, the main gear clamping sheet at the top of the limiting clamping rod clamps the main gear, then the main gear rotates reversely through the main motor, so that the clamping groove on the main gear clamping sleeve is separated from the clamping sheet of the main gear, at the moment, the main gear clamping sleeve can slide left and right relative to the main gear, then the lifting cylinder controls the limiting clamping rod to descend, the second stepping motor controls the main gear clamping sleeve and the main gear to move rightwards through the limiting pieces until the main gear moves to a position meshed with a second pinion on the left, then the first stepping motor controls the cam group to rotate, the cam group below the second pinion on the left limits the position of the main gear, the main gear is prevented from sliding left and right, then the second stepping motor controls the main gear clamping sleeve to return through the limiting pieces, finally the first stepping motor controls the cam group to rotate, the protruding portion of the cam rotates away from the two sides of the main gear, control of the first light shielding plate is completed, and subsequent light shielding plate control can be achieved by repeating the steps.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. A medical shutter characterized by: comprises a shading box body (1), a penetrating blood vessel observation port (2) is downwards arranged in the middle of the top surface of the shading box body (1), two automatic shading components which are symmetrically arranged in front and back are arranged in an inner cavity, wherein the automatic shading components positioned on the front side comprise a driving shaft (3), a driven shaft (4) and a gear baffle shaft (5) which are horizontally and mutually parallel, the driving shaft (3), the driven shaft (4) and the gear baffle shaft (5) can be supported in the shading box body (1) in a rotating way, the driving shaft (3) can also slide left and right, a main motor (7) for driving the driving shaft (3) to rotate is arranged at the end part of the driving shaft in a matching way, a main gear clamping sleeve (8) is fixedly sleeved outside the middle section of the driving shaft (3), a main gear (9) which can slide left and right and synchronously rotate along the main gear clamping sleeve (8) is sleeved outside the main gear clamping sleeve, the front side of the driving shaft (3) is provided with a limiting part (10) used for driving a main gear clamping sleeve (8) to slide left and right, the limiting part (10) comprises a transverse rod parallel to the driving shaft (3), two ends of the transverse rod are symmetrically provided with a connecting rod perpendicular to the transverse rod, the middle part of the front end of the transverse rod is provided with a driving rod perpendicular to the transverse rod, one end of the connecting rod is fixedly connected with the end part of the transverse rod, the other end of the connecting rod is fixed at the end part of the main gear clamping sleeve (8), the front end of the driving rod is connected with a driving cam (11) in a matching way, a strip-shaped sliding hole used for limiting the end part of the driving rod is formed in the protruding part of the driving cam (11), the front side of the driving cam (11) is provided with a first step motor (12) in a matching way, the driven shaft (4) is arranged above the rear side of the driving shaft (3), and a plurality of auxiliary gears (13) rotatably connected with the driven shaft (4) are uniformly distributed from left to right, the rear side of driving shaft (3) is arranged in gear baffle axle (5), and turns right the equipartition from a left side on gear baffle axle (5) and have with pinion (13) quantity the same and the corresponding spacing cam group in position, the tip cooperation of gear baffle axle (5) is connected with second step motor (14), spacing cam group includes spacing cam (15) that two bilateral symmetry set up, and leaves the spacing clearance of gear between two spacing cam (15), the spacing clearance of gear is corresponding with the position of pinion (13), turn right the equipartition from a left side at the inner chamber top of shading box (1) and have with the same and the corresponding light screen (16) in position of pinion (13), the bottom of light screen (16) is equipped with rack (17) with pinion (13) engaged with, and two adjacent light screen (16) laminating slip.

2. A medical shutter according to claim 1, characterized in that: the key groove has evenly been seted up along the circumferencial direction to the tip of driving shaft (3), the key groove sets up along the axis direction of driving shaft (3), and the tip of driving shaft (3) is outer to be installed in the cooperation and to follow key groove horizontal slip's key groove axle sleeve (18), key groove axle sleeve (18) overcoat is equipped with the bearing.

3. A medical shutter according to claim 2, characterized in that: the end part of a motor shaft of the main motor (7) is provided with a connecting sleeve in a matching way, keys matched with the key grooves at the end part of the driving shaft (3) are uniformly distributed in the connecting sleeve along the circumferential direction, and the end part of the rotating shaft (3) can slide left and right and is arranged in the connecting sleeve and can synchronously rotate along with the connecting sleeve.

4. A medical shutter according to claim 1, characterized in that: the clamping groove set is uniformly formed in the outer side of the main gear clamping sleeve (8) along the axis direction, the cross section of the main gear clamping sleeve (8) is square, the clamping groove set comprises clamping grooves which are uniformly formed in four top corners of the outer side of the main gear clamping sleeve (8) along the circumferential direction, card sets are arranged on the inner sides of the left side face and the right side face of the main gear (9), each card set comprises four cards (19) which are uniformly distributed along the circumferential direction, and the cards (19) can slide along the outer side face of the main gear clamping sleeve (8) and can be matched with the clamping grooves in a clamping mode.

5. The medical shutter of claim 4, wherein: four top corners of the main gear cutting sleeve (8) are straight surfaces.

6. The medical shutter of claim 5, wherein: the gear limiting device is characterized in that a limiting clamping rod (6) arranged in parallel with the driving shaft (3) is arranged below the driving shaft, main gear clamping pieces (20) which are the same as the gear limiting gaps in quantity and correspond to the gears in position are evenly distributed on the top of the limiting clamping rod (6) from left to right, and a lifting cylinder (21) is connected to the middle of the bottom surface of the main gear clamping pieces in a matched mode.

7. A medical shutter according to claim 1, characterized in that: the light screen (16) includes left rectangle slide and right rectangle slide that two left and right sides set up, left side rectangle slide level sets up, and its left side bottom is equipped with the left draw runner of vertical setting, right side rectangle slide level sets up, and its right both sides top is equipped with the right draw runner of vertical setting, the right side bottom of left side rectangle slide and the left side top fixed connection of right rectangle slide, in two adjacent light screens, the right draw runner that is located the left side light screen slides and supports and lean on the right side at the left draw runner that is located the right side light screen, the bottom of right side rectangle slide is equipped with rack (17).

8. The medical shutter of claim 6, wherein: the number of the auxiliary gears (13), the limit cam group, the light screen (16) and the main gear clamping piece (20) is four respectively.

9. A medical shutter according to claim 1, characterized in that: and bearings are respectively sleeved at the two ends of the driven shaft (4) and the gear baffle shaft (5).