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A kind of ophthalmic plate type tweezers

A technology of tweezers and ophthalmology, which is applied in the field of ophthalmic plate tweezers, can solve the problems of high mental stress and patient injury, and achieve the effect of simplifying the operation steps, preventing damage, and simplifying the operation process

Active Publication Date: 2019-04-19
BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the above-mentioned existing pterygium excision completely relies on the doctor's two-handed operation with surgical scissors to manually take the graft, high mental stress, and easy to cause unnecessary damage to the patient, the present invention provides an ophthalmic tweezers, the specific scheme is as follows:

Method used

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  • A kind of ophthalmic plate type tweezers
  • A kind of ophthalmic plate type tweezers
  • A kind of ophthalmic plate type tweezers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as Figure 1 to Figure 3 As shown, a kind of ophthalmic tweezers comprises an upper tweezer handle 1 and a lower tweezer handle 2 fixedly connected at the connection end, there is an angle between the upper tweezer handle 1 and the lower tweezer handle 2, and the upper tweezer handle 1 and the lower tweezer handle 2 are not The connecting ends are bent upward to form the upper tweezers board 3 and the lower tweezers board 4 respectively. The length of the upper tweezers handle 1 is less than the length of the lower tweezers handle 2, the angle between the upper tweezers plate 3 and the upper tweezers handle 1 is smaller than the angle between the lower tweezers plate 4 and the lower tweezers handle 2, and the projected area of ​​the upper tweezers plate 3 on the horizontal plane Equal to the projected area of ​​the lower tweezers plate 4 on the horizontal plane, the upper tweezers plate 3 and the lower tweezers plate 4 can completely overlap when the upper tweezers...

Embodiment 2

[0025] to combine Figure 4 with Figure 5 As shown, the difference between Embodiment 2 and Embodiment 1 is that the projected area of ​​the upper tweezers plate 3 on the horizontal plane is smaller than the projected area of ​​the lower tweezers plate 4 on the horizontal plane, and the lower tweezers plate 4 is provided with a corresponding blade 5. The knife groove 7, the width of the knife groove 7 is 3-5 times of the thickness of the first blade, to ensure the width of the knife, so that the conjunctiva next to the surgical site will not be torn during the operation. The lower tweezers 4 is provided with a second blade 8 arranged along the outer edge of the lower tweezers 4. The second blade 8 is located on the plane where the lower tweezers 4 is located, so that the lower tweezers 4 can directly cut into the conjunctiva of the eyeball, further simplifying the operation steps.

Embodiment 3

[0027] refer to Image 6 with Figure 7 The difference between embodiment 3 and embodiment 1 is that the outer edge of the upper tweezers plate 3 is surrounded by a knife barrel 9, the inner wall of the knife barrel 9 contacts the first blade 5, and the barrel wall of the knife barrel 9 is in contact with the upper tweezers plate 3. The plane is vertical, and the lower edge of the knife cylinder 9 is turned outward to form a pressure ring 11, which is used for the knife cylinder 9 to compress the conjunctiva of the eyeball. A groove is provided at the position corresponding to the upper tweezers handle 1 on the cylinder wall of the cutter cylinder 9, and the groove is arranged along the axial direction of the cutter cylinder 9, and the upper tweezers handle 1 can move in this groove, so that the upper tweezers plate Can move up and down. An elastic spring 10 is provided between the upper plane of the upper tweezers plate 3 and the upper edge of the knife barrel 9 to ensure t...

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Abstract

The invention discloses a plate-type tweezer for ophthalmology. The tweezer comprises an upper tweezer plate and a lower tweezer plate fixedly connected on the connection end, an angle is formed between the upper tweezer plate and the lower tweezer plate, the non-connection ends of the upper tweezer plate and the lower tweezer plate both fold upwards and respectively form an upper tweezer head and a lower tweezer head, the length of the upper tweezer plate is less than the length of the lower tweezer plate, the intersection angle of the upper tweezer head and the upper tweezer plate is less than the intersection angle of the lower tweezer head and the lower tweezer plate; a first blade is arranged on the outer edge of the upper tweezer head along the bottom of the upper tweezer head, the first blade is perpendicular to the plane where the tweezer head is located. The plate-type tweezer can be used with a lower tweezer plate with horizontal blade to cut into the right depth of bulbar conjunction, then used with an upper tweezer with vertical blade to cut conjunctival graft piece of moderate size, so that medical staff can achieve the operation of completing the taking of conjunctival graft piece with one hand, to simplify the surgical procedures.

Description

technical field [0001] The invention relates to a medical device, more specifically a plate type tweezers for ophthalmology. Background technique [0002] Pterygium is a common and frequently-occurring disease in ophthalmology. In traditional Chinese medicine, it is called "pterygium climbing eyes", commonly known as "fish". It is generally believed that it is a chronic inflammatory lesion caused by external stimuli, and one or both eyes are affected. It is named because its shape resembles the wings of insects. It is a kind of neoplastic tissue on the bulbar conjunctiva and cornea of ​​the palpebral fissure, which gradually increases after invading the cornea, and can even cover the pupil area and seriously affect vision. The bulbar conjunctiva and subconjunctival tissue of the palpebral fissure undergo degeneration, hypertrophy, and hyperplasia, and then develop into the cornea. In order to prevent patients from affecting vision due to pterygium, the best treatment metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F9/007
CPCA61F9/0008A61F9/00709
Inventor 朱思泉赵阳
Owner BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV