CN110974153B

CN110974153B - Slit lamp head position fixing device

Info

Publication number: CN110974153B
Application number: CN201911072042.5A
Authority: CN
Inventors: 朱显丰; 周晓伟
Original assignee: Wenzhou Central Hospital
Current assignee: Wenzhou Central Hospital
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2022-02-08
Anticipated expiration: 2039-11-05
Also published as: CN110974153A

Abstract

The invention discloses a slit lamp head position fixing device, which comprises a head fixing frame, a chin bracket and a forehead abutting plate, wherein the head fixing frame comprises two upright posts, the chin bracket is transversely arranged between the two upright posts, the forehead abutting plate is transversely arranged at the front ends of the two upright posts, the chin bracket and the forehead abutting plate respectively correspond to the positions of a chin and a forehead, the slit lamp head position fixing device also comprises a head top fixing plate and a mounting plate, the mounting plate is transversely arranged above the upright posts, the mounting plate, the forehead abutting plate and the chin bracket are in sliding connection with the upright posts, the upright posts are provided with lifting devices for controlling the mounting plate, the forehead abutting plate and the chin bracket to lift up and down, the lifting devices are provided with a switching mechanism for switching the lifting devices to control the mounting plate, the forehead abutting plate and the chin bracket to be more attached to the head of a patient, and the lifting devices are matched with the switching mechanism, so that the regulation and the control are convenient to switch among a plurality of components, the position of the patient can not be greatly changed, so that the detection result is more accurate.

Description

Slit lamp head position fixing device

Technical Field

The invention relates to the field of medical instruments, in particular to a slit lamp holder fixing device.

Background

A slit-lamp microscope is an essential important instrument for ophthalmologic examination. The slit-lamp microscope consists of an illumination system and a binocular microscope, can not only enable superficial lesions to be observed clearly, but also adjust the focus and the width of a light source to be made into an optical section, so that the lesions of deep tissues can be also displayed clearly.

Because the in-process that uses the slit lamp to carry out the ophthalmology inspection requires comparatively high to medical instrument's precision, so must fix patient's head and eye to the doctor observes, the supporting fixing base of current slit lamp guides fixed patient's head through chin bracket and forehead conflict board, and it is limited to the limiting displacement of patient's head, and a lot of patients take place to shift easily in the inspection process, the inconvenient adjustment of fixing base that has now simultaneously, the patient of different height head types can not fine cooperation.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a slit lamp head fixing device which can keep the head position of a patient stable and cannot move.

In order to achieve the purpose, the invention provides the following technical scheme: slit lamp head position fixing device, including head mount, chin bracket and forehead touch panel, the head mount includes two pole settings, the chin bracket is violently established between two pole settings, the forehead touch panel crossbearer sets up the front end in two pole settings, chin bracket and forehead touch panel correspond chin and forehead position respectively, still including top of head fixed plate and mounting panel, the mounting panel crossbearer sets up in the pole setting in the top, mounting panel, forehead touch panel and chin bracket and pole setting sliding connection, be provided with the elevating gear of control mounting panel, forehead touch panel and chin bracket oscilaltion in the pole setting, this elevating gear is provided with switching mechanism, and switching mechanism is used for elevating gear switching control mounting panel, forehead touch panel and chin bracket oscilaltion.

As a further improvement of the invention, a containing cavity is arranged in the upright stanchion, a first rack, a second rack and a third rack which are fixedly connected with the mounting plate, the forehead contact plate and the chin rest are respectively arranged in the containing cavity, the lifting device comprises a driving gear and a rocker arm, the switching mechanism comprises a fixing sleeve and a rotating shaft, the driving gear comprises three gear units which are arranged side by side, two adjacent gear units are rotatably connected, the three gear units axially penetrate to form a through groove, the three gear units are respectively engaged with the first rack, the second rack and the third rack, the number of the fixing sleeves is two, the fixing sleeves are rotatably connected with the two gear units on the side edges, the fixing sleeves are fixedly connected on the upright stanchion, one end of the rotating shaft is fixedly connected with the rocker arm, the other end of the rotating shaft extends into the fixing sleeve, and the rotating shaft is connected with the fixing sleeves in a sliding way, the utility model discloses a gear unit, including pivot periphery wall, gear unit, fastener, first elastic component, second mounting groove, second elastic component, fastener, gear unit, the pivot periphery wall is provided with the second mounting groove, be provided with second elastic component and fastener in the second mounting groove, this second elastic component has an outside deformation pressure to the fastener, the inner wall of gear unit is provided with the second guide way that circumference was evenly arranged, the fastener is the column, and this fastener tip is provided with the inclined plane to the slope of terminal surface center in the both sides in gear unit axial position, and this inclined plane is used for contradicting with the lateral wall of second guide way.

As a further improvement of the invention, the overhead fixture plate is helmet-shaped.

As a further improvement of the invention, the forehead contact plate is provided with a connecting seat, the forehead contact plate is rotatably provided with a connecting arm, one end of the connecting arm, which is back to the forehead contact plate, is provided with an eye shielding plate for shielding a single eye, and the forehead contact plate is provided with a locking mechanism for locking the rotating angle of the connecting arm.

As a further improvement of the invention, the forehead abutting plate is provided with a rotating seat, the rotating seat is provided with a mounting hole, the connecting arm is provided with a rotating shaft in an extending manner, the rotating shaft is rotatably connected with the mounting hole, the rotating seat is provided with a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are distributed on the periphery of the mounting hole, the first limiting plate is used for limiting the connecting arm to rotate towards the inner side of the left eye, and the second limiting plate is used for limiting the connecting part to rotate towards the inner side of the right eye.

As a further improvement of the present invention, the locking mechanism includes a first elastic member and a locking member, the inner peripheral wall of the mounting hole is provided with a first mounting groove, the first elastic member is disposed in the first mounting groove to keep the locking member extending out of the first mounting groove, and the rotating shaft is provided with a groove for the locking member to extend into and abut against.

As a further improvement of the present invention, the abutting surface of the locking member is a circular arc surface or a triangular surface.

As a further improvement of the invention, the medical device also comprises a driving piece for driving the connecting arm to rotate, wherein the driving piece comprises a left driving rope and a right driving rope, the left driving rope and the right driving rope are respectively wound and fixed on the rotating shaft clockwise and anticlockwise, and the left driving rope and the right driving rope respectively comprise a traction part extending to the hand position of the patient.

As a further improvement of the invention, a first guide post and a second guide post are arranged on the front end surface of the forehead contact plate near the side edges, first guide grooves are formed on the outer peripheral surfaces of the first guide post and the second guide post, and the left driving rope and the right driving rope are clamped in the first guide grooves.

The beneficial effects are as follows: the slit lamp holder fixing device is provided with the head fixing plate capable of adjusting the position, so that the patient is limited to move upwards or backwards, meanwhile, the lifting device is arranged to conveniently control the positions of the head top fixing plate, the forehead contact plate and the chin bracket, so that the head top fixing plate, the forehead contact plate and the chin bracket are more attached to the head of the patient, the lifting device is matched with the switching device, the switching is conveniently carried out when a plurality of components are adjusted, the position of the patient cannot change greatly, interference items during examination are reduced, and the detection result is more accurate.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a mounting structure of the switching mechanism of the present invention;

FIG. 3 is a schematic view of the matching structure of the switching mechanism and the lifting device of the present invention;

FIG. 4 is a schematic view of the mounting structure of the chin rest and forehead contact plate and the vertical rod;

FIG. 5 is a schematic structural view of the forehead contact plate;

fig. 6 is a schematic view of an installation structure of the rotating base and the rotating shaft.

1. Erecting a rod; 2. a chin rest; 3. a forehead contact plate; 4. a connecting arm; 5. an eye shielding plate; 6. a rotating seat; 7. mounting holes; 8. a rotating shaft; 9. a first limit plate; 10. a second limiting plate; 11. a first elastic member; 12. a lock; 13. a first mounting groove; 14. a groove; 15. a left drive rope; 16. a right drive rope; 17. a first guide post; 18. a second guide post; 19. a first guide groove; 20. a head top fixing plate; 21. mounting a plate; 22 an accommodating cavity; 23. a first rack; 24. a second rack; 25. a third rack; 26. a rocker arm; 27. fixing a sleeve; 28. a rotating shaft; 29. a gear unit; 30. a through groove; 31. a second mounting groove; 32. a second elastic member; 33. a fastener; 34. a second guide groove; 35. a bevel.

Detailed Description

The invention will be further described in detail with reference to the following examples, which are given in the accompanying drawings.

Referring to fig. 1-6, the slit lamp head position fixing device includes a head fixing frame, a chin rest 2 and a forehead contact plate 3, the head fixing frame includes two vertical rods 1, the chin rest 2 is horizontally disposed between the two vertical rods 1, the forehead contact plate 3 is horizontally disposed at the front ends of the two vertical rods 1, the chin rest 2 and the forehead contact plate 3 respectively correspond to the positions of the chin and the forehead, the chin rest 2 may be a prior art bracket structure made of plastic material, and is recessed downwards at the middle position to form a placement position for placing the chin, the forehead contact plate 3 is bent forwards at the middle to form an arc-shaped surface matching with the shape of the forehead, a head fixing plate 20 and a mounting plate 21 are further included, the mounting plate 21 is horizontally disposed above the vertical rods 1, and the mounting plate 21, the forehead rest 3 and the forehead rest 2 are slidably connected with the vertical rods 1, the lifting device who is provided with control mounting panel 21,

forehead touch panel

3 and 2 oscilaltions of chin bracket on the pole setting 1, this lifting device is provided with switching mechanism, and switching mechanism is used for lifting device switching control mounting panel 21, forehead touch panel 3 and chin bracket 2.

When using, the patient is through fixing a position the chin on chin bracket 2, the forehead is contradicted at forehead touch panel 3 position, different patients, adjust chin bracket 2 and forehead touch panel 3 through adjusting elevating gear, auto-change over device makes elevating gear switch and adjusts chin bracket 2 and forehead touch panel 3, after chin bracket 2 and forehead touch panel 3 position location, adjust overhead fixed plate 20 through auto-change over device, overhead fixed plate 20 contradicts with patient's top of the head each other, be used for restricting patient upwards or backward movement, the position of final adjustment slit lamp, make its eyes can align the slit lamp, it remains stable to keep observing in-process patient's head position.

As a modified specific embodiment, a containing cavity is arranged in the upright, a first rack, a second rack and a third rack which are fixedly connected with the mounting plate 21, the forehead contact plate 3 and the chin rest 2 are arranged in the containing cavity, the first rack, the second rack and the third rack are columnar and can play a certain supporting effect, sliding arms are arranged at two ends of the mounting plate 21, the forehead contact plate 3 and the chin rest 2, sliding grooves for sliding the sliding arms of the mounting plate 21, the forehead contact plate 3 and the chin rest 2 are arranged on the upright respectively, the lifting device comprises a driving gear and a rocker arm, the switching mechanism comprises a fixed sleeve and a rotating shaft, the driving gear comprises three gear units which are arranged side by side, two adjacent gear units are rotatably connected, the gear units are preferably rotatably connected through a convex ring and a groove 14 arranged on the side, three gear units axially penetrate to form a through groove, three gear units are respectively meshed with a first rack, a second rack and a third rack, the number of the fixed sleeves is two and is rotationally connected with two gear units on the side edge, the fixed sleeves are fixedly connected on the vertical rod, the rotating shaft comprises one end fixedly connected with the rocker arm, the other end extends into the fixed sleeves, the rotating shaft is connected with the fixed sleeves in a sliding manner, a second mounting groove 31 is formed in the peripheral wall of the rotating shaft, a second elastic part 32 and clamping parts are arranged in the second mounting groove 31, the second elastic part 32 has outward deformation pressure on the clamping parts, second guide grooves 34 which are uniformly distributed in the circumferential direction are formed in the inner wall of each gear unit, the clamping parts are columnar, inclined planes inclined towards the center of the end face are arranged on the two sides of the axial direction of each gear unit, and the inclined planes are used for abutting against the side walls of the second guide grooves 34, so that the card member can bounce between two gear units but not between two adjacent second guide grooves 34 when the rotary shaft moves back and forth in the through groove.

During the use, come the drive gear unit through rotating the rocking arm and rotate and then drive rather than the rack of meshing and reciprocate, when the high position of needs control mounting panel 21, forehead touch panel 3 and chin bracket 2, promote the pivot with the fastener joint to corresponding in the second guide way 34 of rack toothing's gear unit, and then drive the gear unit rotation that corresponds, be provided with the baffle between its second guide way 34, the size of second guide way 34 is for just holding the fastener.

As a modified specific embodiment, the overhead guard 20 is in a helmet shape, further enabling the overhead guard 20 to have a head-limiting effect.

As a modified specific embodiment, forehead support plate 3 rotates and is provided with linking arm 4, linking arm 4 corresponds and rotates in the peripheral direction in eyes planar position, and this linking arm 4 is provided with the eye shield 5 that is used for sheltering from single eye dorsad to forehead support plate 3 one end, and eye shield 5 is the current arbitrary one of eye shield 5 among the prior art, and linking arm 4 preferred sets up to the telescopic link, can set up linking arm 4 and forehead support plate 3's rotation connection structure into interference fit's structure, makes linking arm 4 position locking through frictional force, and is preferred forehead support plate 3 is provided with locking mechanism, and this locking mechanism is used for locking linking arm 4 pivoted angle.

Through rotating the setting on forehead touch-sensitive plate 3 and hiding eye plate 5, conveniently when needs carry out the strabismus inspection, the eye is shielded in turn about going on, and the patient only need rotate and hide eye plate 5 and just can shield and control the eye, and great change can not take place for patient's position simultaneously, reduces the interference item when checking for the testing result is more accurate.

As a modified specific embodiment, the forehead contact plate 3 is provided with a rotating seat 6, the rotating seat 6 is provided with a mounting hole 7, the connecting arm 4 is extended to be provided with a rotating shaft 8, the rotating shaft 8 is rotatably connected with the mounting hole 7, the rotating seat 6 is provided with a first limiting plate 9 and a second limiting plate 10 distributed at the periphery of the mounting hole 7, the first limiting plate 9 is used for limiting the connecting arm 4 from rotating towards the inner side of the left eye, the second limiting plate 10 is used for limiting the connecting part from rotating towards the inner side of the right eye, the first limiting plate 9 and the second limiting plate 10 are preferably strip-shaped plates, the first limiting plate 9 is radially arranged towards the left lower direction by taking the central point of the forehead contact plate 3 as the center point, the second limiting plate 10 is radially arranged towards the right lower direction by taking the central point of the forehead contact plate 3 as the center point, and the rotation direction of the connecting arm 4 is limited by the arrangement of the first limiting plate 9 and the second limiting plate 10, when the eye shield 5 needs to be switched, the other eye is shielded by rotating upward, and the other eye is not interfered by the rotation.

As a modified embodiment, locking mechanism is including first elastic component 11 and latch fitting 12, the internal perisporium of mounting hole 7 is provided with first mounting groove 13, first elastic component 11 sets up and keeps latch fitting 12 to stretch out first mounting groove 13 in first mounting groove 13, axis of rotation 8 is provided with and supplies latch fitting 12 to stretch into the recess 14 of contradicting, and the quantity of recess 14 is a plurality of, and circumference distributes at the periphery wall of axis of rotation 8, and locking mechanism's latch fitting 12 plays the effect of locking 8 location angles of axis of rotation, and elastic component 11 is the spring, has the deformation pressure that keeps latch fitting 12 to stretch into recess 14, and under the effect of external force, latch fitting 12 can bounce between recess 14.

As an improved embodiment, the abutting surface of the locking element 12 is a circular arc surface or a triangular surface, so that it is smoother when bouncing.

As a modified specific embodiment, the medical device further comprises a driving element for driving the connecting arm 4 to rotate, wherein the driving element comprises a left driving rope 15 and a right driving rope 16, the left driving rope 15 and the right driving rope 16 are respectively wound and fixed on the rotating shaft 8 clockwise and anticlockwise, and each of the left driving rope 15 and the right driving rope 16 comprises a traction part extending to the hand position of the patient.

When the device is used, the patient pulls the traction part through the hand part, the left driving rope 15 or the right driving rope 16 is controlled to be pulled downwards to drive the eye shielding plate 5 to rotate leftwards or rightwards, the control mode is simple, the patient can be controlled independently conveniently, the action amplitude is small when the device is controlled, the position of the head of the patient can not be influenced, and the accuracy of an inspection result can not be influenced

As a modified specific embodiment, a first guide post 17 and a second guide post 18 are arranged on the front end surface of the forehead contact plate 3 near the side edge, first guide grooves 19 are respectively arranged on the outer peripheral surfaces of the first guide post 17 and the second guide post 18, the left driving rope 15 and the right driving rope 16 are clamped in the first guide grooves 19 to achieve the positioning effect, the first guide post 17 and the second guide post 18 are arranged to guide the driving ropes to be arranged on the two sides of the eyes, and the eyes cannot be shielded when the left driving rope 15 or the right driving rope 16 is pulled.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. Slit lamp head position fixing device, including head mount, chin bracket (2) and forehead touch panel (3), the head mount includes two pole setting (1), chin bracket (2) are violently established between two pole setting (1), forehead touch panel (3) crossbearer sets up the front end in two pole setting (1), chin bracket (2) and forehead touch panel (3) correspond chin and forehead position, its characterized in that respectively: the head support device is characterized by further comprising a head top fixing plate (20) and a mounting plate (21), a cross frame of the mounting plate (21) is arranged above the vertical rod (1), the mounting plate (21), the forehead contact plate (3) and the chin bracket (2) are in sliding connection with the vertical rod (1), a lifting device for controlling the mounting plate (21), the forehead contact plate (3) and the chin bracket (2) to lift up and down is arranged on the vertical rod (1), and the lifting device is provided with a switching mechanism for switching and controlling the mounting plate (21), the forehead contact plate (3) and the chin bracket (2) by the lifting device;

the vertical rod is internally provided with a containing cavity, the containing cavity is internally provided with a first rack, a second rack and a third rack which are respectively and fixedly connected with the mounting plate (21), the forehead touch plate (3) and the chin rest (2), the lifting device comprises a driving gear and a rocker arm, the switching mechanism comprises a fixed sleeve and a rotating shaft, the driving gear consists of three gear units arranged side by side, two adjacent gear units are rotatably connected, three gear units are axially communicated to form a through groove, the three gear units are respectively meshed with the first rack, the second rack and the third rack, the number of the fixed sleeve is two and is rotatably connected with the two gear units on the side edge, the fixed sleeve is fixedly connected on the vertical rod, the rotating shaft comprises one end and the rocker arm which are fixedly connected, the other end extends into the fixed sleeve, and the rotating shaft is connected with the fixed sleeve in a sliding way, the pivot periphery wall is provided with second mounting groove (31), be provided with second elastic component (32) and fastener in second mounting groove (31), this second elastic component (32) have an outside deformation pressure to the fastener, the inner wall of gear unit is provided with second guide way (34) that circumference was evenly arranged, the fastener is the column, and this fastener tip is provided with the inclined plane to the slope of terminal surface center in the both sides in gear unit axial direction, and this inclined plane is used for conflicting with the lateral wall of second guide way (34).

2. The slit lamp head position fixing device according to claim 1, wherein: the head top fixing plate (20) is in a helmet shape.

3. The slit lamp head position fixing device according to claim 1, wherein: be provided with the connecting seat on forehead touch panel (3), forehead touch panel (3) rotate and are provided with linking arm (4), and this linking arm (4) forehead touch panel (3) one end is provided with the eye board (5) that hides that are used for sheltering from single eye dorsad, forehead touch panel (3) are provided with locking mechanism, and this locking mechanism is used for locking linking arm (4) pivoted angle.

4. The slit lamp head position fixing device according to claim 3, wherein: forehead touch-sensitive plate (3) are provided with rotates seat (6), it is provided with mounting hole (7) to rotate seat (6), linking arm (4) extend and are provided with axis of rotation (8), axis of rotation (8) are rotated with mounting hole (7) and are connected, it is provided with first limiting plate (9) and second limiting plate (10) that distribute in mounting hole (7) periphery to rotate seat (6), and this first limiting plate (9) are used for restricting linking arm (4) and rotate to the left eye is inboard, and this second limiting plate (10) are used for restricting connecting portion and rotate to the right eye is inboard.

5. The slit lamp head position fixing device according to claim 4, wherein: locking mechanism is including first elastic component (11) and latch fitting (12), the internal perisporium of mounting hole (7) is provided with first mounting groove (13), first elastic component (11) set up and keep latch fitting (12) to stretch out first mounting groove (13) in first mounting groove (13), axis of rotation (8) are provided with and supply latch fitting (12) to stretch into recess (14) of contradicting.

6. The slit lamp head position fixing device according to claim 5, wherein: the contact surface of the locking piece (12) is a circular arc surface or a triangular surface.

7. The slit lamp head position fixing device according to claim 3, wherein: still include drive linking arm (4) pivoted driving piece, the driving piece includes left drive rope (15) and right drive rope (16), left side drive rope (15) and right drive rope (16) are clockwise and anticlockwise winding respectively and are fixed on axis of rotation (8), and this left side drive rope (15) and right drive rope (16) all include the traction portion that extends to patient's hand position.

8. The slit lamp head position fixing device according to claim 7, wherein: the forehead supports the terminal surface before touch-sensitive plate (3) and is provided with first guide post (17) and second guide post (18) near the side position, first guide post (17) and second guide post (18) outer peripheral face all are provided with first guide way (19), left side drive rope (15) and right side drive rope (16) joint are in first guide way (19).