CN211433164U - Pterygium head grasping micro forceps - Google Patents

Abstract

The utility model provides a pterygium head portion grabs and holds micro-tweezers, relates to the micro-surgical instruments of ophthalmology, including left grip block and right grip block, left side grip block passes through connecting portion fixed connection with right grip block, left side grip block is equipped with the circle flat head with right grip block tip. The clamping device comprises a left clamping plate and a right clamping plate, and is characterized in that a slot is formed in each of the left clamping plate and the right clamping plate, an inserting rod is fixedly connected to the bottom of each slot, an inserting hole is formed in each round flat head, the inserting rod is inserted in each inserting hole, and each round flat head moves in each slot or extends out of each slot along the corresponding inserting rod. The utility model discloses the in-process can effectively increase when tearing pterygium head and the free conjunctiva valve of centre gripping and hold stability, can effectively hold to remaining in the pterygium tissue on cornea surface very much and hold. Brings convenience to the operation of the operator and is easy to operate.

Description

Pterygium head grasping micro forceps

Technical Field

The utility model relates to an ophthalmic microsurgical instrument, in particular to a pterygium head grasping micro-forceps.

Background

Pterygiectomy is used for the surgical treatment of pterygium. Pterygium is a chronic inflammatory disorder caused by chronic irritation of the conjunctiva. When pterygium progressively covers part or all of the pupil, the vision and eyeball movement are affected, and the appearance is affected, the operation treatment can be performed.

Pterygium resection generally requires an eyelid retractor, microsurgical forceps and scissors, an electrocoagulation hemostat, a needle holder, a suture, and the like. At present, microsurgery forceps have certain drawbacks in the operation process, the holding stability of microsurgery forceps used when tearing the pterygium head and clamping the free conjunctiva flap is insufficient, the contact area is small, and the operation is influenced.

SUMMERY OF THE UTILITY MODEL

To the problem in the present pterygium excision, the utility model provides a pterygium head is held and is held micro-tweezers can avoid the emergence of above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a pterygium head portion grabs and holds micro-tweezers, includes left grip block and right grip block, left side grip block passes through connecting portion fixed connection with right grip block, left side grip block is equipped with the flat head of circle with right grip block tip.

Furthermore, the left clamping plate and the right clamping plate are both provided with anti-skid grains.

Furthermore, all be equipped with a slot on left grip block and the right grip block, a inserted bar of slot bottom fixedly connected with, be equipped with the jack on the flat head of circle, it has the inserted bar to peg graft in the jack, and the flat head of circle removes or stretches out outside the slot along the inserted bar in the slot.

Further, the inserted link is an elastic link.

Furthermore, the inserting hole is a conical opening, a limiting head consisting of a cylinder and a frustum is mounted at the end part of the inserting rod, and the shape of the frustum is matched with that of the conical opening.

Further, when the round flat head extends out of the slot, the round flat head is clamped at the end part of the left clamping plate or the right clamping plate.

Furthermore, install lift hold-down mechanism on left grip block and the right grip block, be equipped with the screw hole on left grip block and right grip block, the screw hole is directly over the slot, lift hold-down mechanism includes clamp plate, screw rod and knob, screw hole female connection has the screw rod, screw rod upper end fixedly connected with knob, the screw rod lower extreme rotates and is connected with the clamp plate.

Furthermore, a clamping groove matched with the inserted rod in shape is arranged on the pressing plate.

The utility model has the advantages that:

the utility model discloses the in-process can effectively increase when tearing pterygium head and the free conjunctiva valve of centre gripping and hold stability, can effectively hold to remaining in the pterygium tissue on cornea surface very much and hold. Brings convenience to the operation of the operator and is easy to operate.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a top view of the second embodiment with the obround head retracted;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a top plan view of the second embodiment with the oblate head extended;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

FIG. 6 is a schematic structural view of the second embodiment with an additional lifting and pressing mechanism;

FIG. 7 is a schematic structural view of the lifting and pressing mechanism;

FIG. 8 is a cross-sectional view of the flattened head mated with the plunger;

in the figure: 11 left clamping plate, 12 right clamping plate, 13 connecting part, 14 anti-skid veins, 2 round flat head, 21 jack, 22 conical mouth,

31 slots, 32 inserted rods, 321 cylinders, 322 frustums, 4 lifting and pressing mechanisms, 41 pressing plates, 42 clamping slots, 43 screws and 44 knobs.

Detailed Description

Reference will now be made in detail to the exemplary embodiments illustrated in the accompanying drawings. It should be understood that the following description is not intended to limit the embodiments to one preferred embodiment. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the embodiments as defined by the appended claims.

As shown in fig. 1 to 7, a pterygium head grasping micro-forceps comprises a left holding plate 11 and a right holding plate 12, wherein the left holding plate 11 and the right holding plate 12 are fixedly connected through a connecting part 13, and the ends of the left holding plate and the right holding plate 12 are provided with round flat heads 2. This is a useful addition to the stability of the grasp during the tearing of the pterygium head and the grasping of the free conjunctival flap, particularly for pterygium tissue remaining on the corneal surface.

Furthermore, the left clamping plate 11 and the right clamping plate 12 are both provided with anti-skid grains 14.

In at least one embodiment, the round flat head 2 can be inserted into the left clamping plate and the right clamping plate so as to hide the round flat head and avoid medical pollution caused by excessive contact with external germs.

Referring to fig. 2 to 5, the left clamping plate is taken as an example for explanation, and the same mechanism is symmetrically arranged in the right clamping plate.

All be equipped with a slot 31 on left side grip block and the right grip block, slot bottom fixedly connected with inserted bar 32, the complex is with it, be equipped with a jack on the flat head of circle, it has inserted bar 32 to peg graft in the jack, and the flat head of circle removes or stretches out outside the slot along the inserted bar in the slot.

Furthermore, the inserted link is an elastic link, and can generate certain elastic deformation.

The scheme is refined, referring to fig. 8, an insertion hole 21 is arranged in the round flat head, the insertion hole is a conical opening 22, and in cooperation with the insertion hole, a limiting head consisting of a cylinder 321 and a frustum 322 is mounted at the end part of the insertion rod, and the shape of the frustum is matched with that of the conical opening.

Further, when the round flat head extends out of the slot, the round flat head can be clamped at the end part of the left clamping plate or the right clamping plate. Thereby avoiding the retraction of the round flat head. See fig. 5 or fig. 6.

In at least one embodiment, the left and right clamping plates are provided with a lifting and pressing mechanism 4.

Threaded holes are formed in the left clamping plate and the right clamping plate and are located right above the slots, and the lifting and pressing mechanism comprises a pressing plate 41, a screw 43 and a knob 44. The threaded hole is internally threaded with a screw rod, the upper end of the screw rod is fixedly connected with a knob, and the lower end of the screw rod is rotatably connected with a pressing plate.

When the circle flat head withdrawed to in the slot, the knob rotated and can drive the clamp plate and move down to the flat head top of laminating circle for fixed circle flat head, when the circle flat head stretched out the slot, the knob can drive the clamp plate and move down to compressing tightly the inserted bar middle part, made the inserted bar middle part bear certain effort, when the circle flat head torn pterygium head, made this department atress, reduced the arm of force.

The scheme is refined, and a clamping groove 42 matched with the inserted bar in shape is arranged on the pressing plate.

In addition to the technical features described in the specification, the technology is known to those skilled in the art.

Claims (6)

1. A pterygium head grasping micro-forceps comprises a left holding plate and a right holding plate which are fixedly connected through a connecting part, and is characterized in that the ends of the left holding plate and the right holding plate are provided with flat heads,

the left clamping plate and the right clamping plate are both provided with a slot, the bottom of the slot is fixedly connected with an inserting rod, the round flat head is provided with an inserting hole, the inserting rod is inserted in the inserting hole, the round flat head moves in the slot along the inserting rod or extends out of the slot,

when the round flat head extends out of the slot, the round flat head is clamped at the end part of the left clamping plate or the right clamping plate.

2. The pterygium-head-grasping micro-forceps according to claim 1, wherein the left and right holding plates are each provided with an anti-slip pattern.

3. The pterygium-grasping micro-forceps according to claim 1, wherein the insertion rod is an elastic rod.

4. The pterygium-head-grasping micro-forceps according to claim 1, wherein the insertion hole is a tapered opening, and a stopper composed of a cylinder and a frustum is mounted on the end of the insertion rod, and the shape of the frustum matches the shape of the tapered opening.

5. The pterygium head grasping micro-forceps according to claim 1, wherein the left and right holding plates are provided with elevating and pressing mechanisms, the left and right holding plates are provided with threaded holes directly above the slots, the elevating and pressing mechanisms comprise a pressing plate, a screw rod and a knob, the threaded holes are internally threaded with the screw rod, the upper end of the screw rod is fixedly connected with the knob, and the lower end of the screw rod is rotatably connected with the pressing plate.

6. The pterygium-head-grasping micro-forceps according to claim 5, wherein the pressing plate is provided with a locking groove matching the shape of the insertion rod.

Images