Head fixing device for ophthalmology slit lamp examination

Abstract

The invention discloses a head fixing device for ophthalmology slit lamp examination, which comprises two support columns, two clamping and tensioning mechanisms and an annular belt, the support columns are both provided with the clamping and tensioning mechanisms, the clamping and tensioning mechanisms are provided with the annular belt, the two clamping and tensioning mechanisms are used for fixing the head in the left-right direction, and the annular belt is used for fixing the head in the left-right direction. Compared with the prior art, the head fixing device has the advantages that the head can be fixed in multiple directions, and the head fixing device is convenient to operate and high in automation degree.

Description

Technical Field

[0001] The invention relates to the technical field of ophthalmic detection auxiliary instruments, in particular to a head fixing device for ophthalmic slit lamp examination. Background Art

[0002] The slit lamp is an important instrument indispensable for ophthalmic examination. It can not only observe superficial lesions very clearly, but also adjust the focus and width of the light source so that lesions in deep tissues can be clearly displayed. As children become more and more dependent on electronic products, more and more children suffer from eye diseases. When medical staff perform slit lamp examinations on children, in order to prevent deviations in examination results caused by shaking of the children's heads, they need to fix the children's heads. However, most existing slit lamp fixing devices can only support the head but not fix it. Medical staff can only manually fix the children's heads for examination, which not only increases the workload of medical staff, but also has poor fixation effect.

[0003] The pediatric slit lamp fixing bracket with application (patent) number: CN202121211582.X effectively solves the problems of inconvenience and poor effect of existing fixing methods; it comprises a U-shaped frame with an opening facing upward, a U-shaped supporting plate with an opening facing downward being slidably connected in the opening of the U-shaped frame, left and right sides of the supporting plate are respectively provided with making way grooves in the left and right directions and penetrating up and down, and splints in the making way grooves are hingedly connected in the up and down directions, the upper ends of the splints extend out of the making way grooves and are provided with arc-shaped fixing plates, the arc openings of the two fixing plates are opposite, and the lower end of the support plate is rotatably connected with a rotating shaft with upper and lower axial directions and located between the two splints, and two rotating wheels with upper and lower axial directions opposite to each other and located up and down are eccentrically provided on the rotating shaft, the upper rotating wheel contacts the lower end of the splint on the left, and the lower rotating wheel contacts the lower end of the splint on the right, but only the left and right directions can be fixed, while the front and rear directions cannot achieve good fixation, so the technical effect needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide a head fixing device for ophthalmic slit lamp examination, which can fix the head in multiple directions and is easy to operate.

[0005] To achieve the above-mentioned purpose, the present invention proposes a head fixing device for ophthalmic slit lamp examination, comprising two support columns, two clamping and tensioning mechanisms and an annular belt, wherein the support columns are provided with a clamping and tensioning mechanism, the clamping and tensioning mechanism is provided with an annular belt, the two clamping and tensioning mechanisms fix the head in the left and right directions, and the annular belt is tensioned by the clamping and tensioning mechanism to fix the head in the front and back directions.

[0006] Preferably, the clamping and tensioning mechanism includes a support, a driving mechanism, a clamping body, a plurality of guide rings, a plurality of guide rollers, a fixing mechanism and a clamping belt mechanism. The driving mechanism is elastically slidably arranged on the support. A clamping body is provided at the driving end of the driving mechanism. Guide rings through which an annular belt can pass are provided at both the upper and lower ends of the clamping body. A fixing mechanism for fixing the driving mechanism is provided on the support. A clamping belt mechanism for clamping the annular belt is provided on the support. Guide rollers for supporting the annular belt are provided at the front end of the driving mechanism.

[0007] Preferably, the driving mechanism is an electric cylinder. Guide rollers and a U-shaped support body are provided at the front end of the driving mechanism. A sliding shaft is provided at the front end of the U-shaped support body. A seat body arranged on the support is sleeved on the sliding shaft. A spring is sleeved on the sliding shaft between the seat body and the U-shaped support body.

[0008] Preferably, a rubber sleeve is provided on the seat body, and a sliding sleeve matched with the sliding shaft is arranged in the rubber sleeve.

[0009] Preferably, the fixing mechanism includes a gantry, a push-pull electromagnet I, a moving clamp body and a fixed clamp body. A push-pull electromagnet I is provided on the gantry. A moving clamp body is provided at the driving end of the push-pull electromagnet I. A fixed clamp body is provided below the moving clamp body. The telescopic rod of the driving mechanism is located between the moving clamp body and the fixed clamp body. Grooves matched with the telescopic rod of the driving mechanism are provided on both the moving clamp body and the fixed clamp body.

[0010] Preferably, guide rings through which the annular belt can pass are provided on both the upper and lower sides at the front end of the driving mechanism. The through holes on the guide rings are matched with the cross-section of the annular belt.

[0011] Preferably, the clamping belt mechanism includes a frame body, a pressing body and a push-pull electromagnet II. A push-pull electromagnet II is provided at the upper end of the frame body. A pressing body is provided at the driving end of the push-pull electromagnet II. A pressing seat corresponding to the pressing body is arranged on the inner side of the lower end of the frame body.

[0012] Preferably, a mandibular support mechanism is provided on the two support columns. The mandibular support mechanism includes a support seat. An electric push rod is provided on the support seat. A sliding seat is provided at the driving end of the electric push rod. A sliding body is penetrated through the sliding seat. A mandibular support is provided on the sliding body. A hand-tightening bolt for fixing the sliding body is provided on the sliding seat.

[0013] The beneficial effects of the present invention: By providing clamping and tensioning mechanisms on the support columns, and an annular belt on the clamping and tensioning mechanisms, the two clamping and tensioning mechanisms fix the head in the left-right direction, and the annular belt is tensioned by the clamping and tensioning mechanism to fix the head in the front-back direction. Compared with the prior art, it can realize multi-directional fixation of the head, is convenient to operate, and has a high degree of automation.

[0014] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of a head fixing device for ophthalmic slit lamp examination of the present invention; Figure 2 is a schematic structural diagram of the fixing mechanism; Figure 3 is a schematic structural diagram of the mandibular support mechanism.

[0016] In the figure: 1 - support column, 2 - clamping and tensioning mechanism, 3 - annular belt, 4 - mandibular support mechanism, 21 - support, 22 - driving mechanism, 23 - clamping body, 24 - guide ring, 25 - guide roller, 26 - fixing mechanism, 27 - clamping belt mechanism, 28 - U-shaped support body, 29 - sliding shaft, 41 - support seat, 42 - electric push rod, 43 - sliding seat, 44 - sliding body, 45 - mandibular support, 210 - seat body, 211 - spring, 212 - sliding sleeve, 213 - rubber sleeve, 261 - gantry, 262 - push-pull electromagnet I, 263 - moving clamping body, 264 - fixed clamping body, 265 - groove, 271 - frame body, 272 - pressing body, 273 - push-pull electromagnet II, 274 - pressing seat. Detailed Embodiment

[0017] Referring to Figure 1 、 Figure 2 and Figure 3 , a head fixing device for ophthalmic slit lamp examination of the present invention includes two support columns 1, two clamping and tensioning mechanisms 2 and an annular belt 3. The clamping and tensioning mechanisms 2 are provided on the support columns 1, and the annular belt 3 is provided on the clamping and tensioning mechanisms 2. The two clamping and tensioning mechanisms 2 fix the head in the left-right direction, and the annular belt 3 is tensioned by the clamping and tensioning mechanisms 2 to fix the head in the front-back direction.

[0018] The clamping and tensioning mechanism 2 includes a support 21, a driving mechanism 22, a clamping body 23, a plurality of guide rings 24, a plurality of guide rollers 25, a fixing mechanism 26 and a clamping belt mechanism 27. The driving mechanism 22 is elastically slidably arranged on the support 21. The driving end of the driving mechanism 22 is provided with a clamping body 23. Guide rings 24 through which the annular belt 3 can pass are provided at both the upper and lower ends of the clamping body 23. A fixing mechanism 26 for fixing the driving mechanism 22 is provided on the support 21. A clamping belt mechanism 27 for clamping the annular belt 3 is provided on the support 21. Guide rollers 25 for supporting the annular belt 3 are provided at the front end of the driving mechanism 22.

[0019] The driving mechanism 22 is an electric cylinder. A guiding roller 25 and a U-shaped support 28 are provided at the front end of the driving mechanism 22. A sliding shaft 29 is provided at the front end of the U-shaped support 28. A seat body 210 provided on the support 21 is sleeved on the sliding shaft 29. A spring 211 is sleeved on the sliding shaft 29 between the seat body 210 and the U-shaped support 28.

[0020] A rubber sleeve 213 is provided on the seat body 210. A sliding sleeve 212 matched with the sliding shaft 29 is provided inside the rubber sleeve 213.

[0021] The fixing mechanism 26 includes a gantry 261, a push-pull electromagnet I 262, a movable clamping body 263 and a fixed clamping body 264. The push-pull electromagnet I 262 is provided on the gantry 261. A movable clamping body 263 is provided at the driving end of the push-pull electromagnet I 262. A fixed clamping body 264 is provided below the movable clamping body 263. The telescopic rod of the driving mechanism 22 is located between the movable clamping body 263 and the fixed clamping body 264. Grooves 265 matched with the telescopic rod of the driving mechanism 22 are provided on both the movable clamping body 263 and the fixed clamping body 264.

[0022] Guide rings 24 through which the annular belt 3 can pass are provided on both the upper and lower sides at the front end of the driving mechanism 22. The through holes on the guide rings 24 are matched with the cross-section of the annular belt 3.

[0023] The clamping belt mechanism 27 includes a frame body 271, a pressing body 272 and a push-pull electromagnet II 273. The push-pull electromagnet II 273 is provided at the upper end of the frame body 271. The pressing body 272 is provided at the driving end of the push-pull electromagnet II 273. A pressing seat 274 corresponding to the pressing body 272 is provided on the inner side of the lower end of the frame body 271.

[0024] A mandibular support mechanism 4 is provided on the two support columns 1. The mandibular support mechanism 4 includes a support seat 41. An electric push rod 42 is provided on the support seat 41. A sliding seat 43 is provided at the driving end of the electric push rod 42. A sliding body 44 is penetrated through the sliding seat 43. A mandibular support 45 is provided on the sliding body 44. A hand-tightening bolt 46 for fixing the sliding body 44 is provided on the sliding seat 43.

[0025] The support 21 is arranged on the corresponding support column 1 through a mounting seat 5. An adult forehead pressing body 6 is arranged between the two mounting seats 5. A plug-in body which is in plug-in connection with the plug-in groove on the mounting seat 5 is provided on the support 21. A manual bolt is provided on the mounting seat 5 for tightly fixing the plug-in body.

[0026] The working process of the present invention: During the operation of the head fixing device for ophthalmic slit lamp examination of the present invention, the patient's mandible is placed on the mandibular support 45, and then the driving mechanism 22 is started to work. The driving mechanism 22 pushes the clamping body 23 to move closer to the patient's head. After the patient's head is clamped, the driving mechanism 22 pauses working, and then the push-pull electromagnet I 262 is started to drive the moving clamping body 263 to move downward to clamp the telescopic rod of the driving mechanism 22. Then the driving mechanism 22 is started to work. Since the telescopic rod of the driving mechanism 22 is fixed, at this time, the cylinder barrel of the driving mechanism 22 moves forward. The cylinder barrel of the driving mechanism 22 drives the guide roller 25 to move forward and compresses the spring 211 through the U-shaped support body 28. The guide roller 25 drives the annular belt 3 to move and tension it. At this time, the annular belt 3 hugs the patient's head. Then the driving mechanism 22 is stopped and the push-pull electromagnet II 273 is started to drive the pressing body 272 to move towards the pressing seat 274, and the corresponding annular belt 3 is pressed and fixed on the pressing seat 274 to complete the fixation of the patient's head.

[0027] The electric push rod 42 drives the sliding seat 43 to move up and down, and the sliding seat 43 drives the mandibular support 45 to adjust the height. Loosen the hand-tightening bolt 46 to adjust the mandibular support 45 in the horizontal direction.

[0028] When the annular belt 3 is not needed for fixation by adults, loosen the manual bolt to remove the clamping and tensioning mechanism 2, which is convenient for adjustment according to the user group.

[0029] The above embodiments are illustrative of the present invention, not limiting of the present invention. Any simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A head fixing device for ophthalmic slit lamp examination, characterized in that: The invention comprises two support columns (1), two clamping and tensioning mechanisms (2) and an annular belt (3), wherein each of the support columns (1) is provided with a clamping and tensioning mechanism (2), and the clamping and tensioning mechanism (2) is provided with an annular belt (3), wherein the two clamping and tensioning mechanisms (2) are used to fix the head in the left-right direction, and the annular belt (3) is tensioned by the clamping and tensioning mechanisms (2) to fix the head in the front-back direction.

2. A head fixing device for ophthalmic slit lamp examination as claimed in claim 1, characterized in that: The clamping and tensioning mechanism (2) comprises a support (21), a driving mechanism (22), a clamping body (23), a plurality of guide rings (24), a plurality of guide rollers (25), a fixing mechanism (26) and a clamping belt mechanism (27); the driving mechanism (22) is elastically slidably arranged on the support (21); the driving end of the driving mechanism (22) is provided with a clamping body (23); the upper and lower ends of the clamping body (23) are provided with guide rings (24) for the annular belt (3) to pass through; the support (21) is provided with a fixing mechanism (26) for fixing the driving mechanism (22); the support (21) is provided with a clamping belt mechanism (27) for clamping the annular belt (3); and the front end of the driving mechanism (22) is provided with a guide roller (25) for supporting the annular belt (3).

3. A head fixing device for ophthalmic slit lamp examination as claimed in claim 2, characterized in that: The driving mechanism (22) is an electric cylinder. A guide roller (25) and a U-shaped support body (28) are provided at the front end of the driving mechanism (22). A sliding shaft (29) is provided at the front end of the U-shaped support body (28). A seat body (210) provided on the support (21) is sleeved on the sliding shaft (29). A spring (211) is sleeved on the sliding shaft (29) between the seat body (210) and the U-shaped support body (28).

4. A head fixing device for ophthalmic slit lamp examination as claimed in claim 3, characterized in that: The seat body (210) is provided with a rubber sleeve (213), and a sliding sleeve (212) matching with the sliding shaft (29) is provided inside the rubber sleeve (213).

5. The head fixing device for ophthalmic slit lamp examination according to claim 3, characterized in that: The fixing mechanism (26) comprises a gantry (261), a push-pull electromagnet I (262), a movable clamp (263) and a fixed clamp (264); the gantry (261) is provided with a push-pull electromagnet I (262); a driving end of the push-pull electromagnet I (262) is provided with a movable clamp (263); a fixed clamp (264) is provided below the movable clamp (263); a telescopic rod of the driving mechanism (22) is located between the movable clamp (263) and the fixed clamp (264); and a groove (265) matching the telescopic rod of the driving mechanism (22) is provided on the movable clamp (263) and the fixed clamp (264).

6. A head fixing device for ophthalmic slit lamp examination as claimed in claim 3, characterized in that: Guide rings (24) are provided at both the upper and lower sides of the front end of the driving mechanism (22) for the annular belt (3) to pass through, and the through holes on the guide ring (24) match the cross section of the annular belt (3).

7. A head fixing device for ophthalmic slit lamp examination as claimed in claim 2, characterized in that: The clamping belt mechanism (27) comprises a frame (271), a clamping body (272) and a push-pull electromagnet II (273); the upper end of the frame (271) is provided with a push-pull electromagnet II (273); the driving end of the push-pull electromagnet II (273) is provided with a clamping body (272); and the inner side of the lower end of the frame (271) is provided with a clamping seat (274) corresponding to the clamping body (272).

8. A head fixing device for ophthalmic slit lamp examination according to any one of claims 1 to 7, characterized in that: A mandibular support mechanism (4) is provided on the two support columns (1), and the mandibular support mechanism (4) comprises a support seat (41), an electric push rod (42) is provided on the support seat (41), a driving end of the electric push rod (42) is provided with a sliding seat (43), a sliding body (44) is passed through the sliding seat (43), a mandibular support (45) is provided on the sliding body (44), and a hand-tightened bolt (46) for fixing the sliding body (44) is provided on the sliding seat (43).

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