Nucleus chopping cutter for cataract surgery

Abstract

The utility model relates to the technical field of surgical instruments, in particular to a nucleus chopping cutter for cataract surgery, which comprises a cutter body, chutes are arranged on two sides of the outer surface of the cutter body, and fixing structures are arranged inside the chutes. The fixing structure comprises an anti-skid sleeve, sliding blocks are installed on the two sides of the inner wall of the anti-skid sleeve, the two sliding blocks are slidably connected with the two sliding grooves, a threaded hole is formed in the sliding block close to the upper portion, and a fixing shaft is installed on one side of the outer surface of the anti-skid sleeve. By means of the fixing structure, before an operation, after the device body is disinfected, the thumb sleeve is separated from the fracture, the thumb of a doctor is sleeved with the thumb sleeve, then the woven fastening belt is tensioned and fixed, and due to the fact that the elastic column can rotate and has elasticity, when the anti-skid sleeve conducts the operation along with the cutter body, the anti-skid sleeve is not affected by fixation of the thumb sleeve; therefore, the purpose of fixing the nucleus chopping knife on the hand of a doctor and avoiding the slippage phenomenon is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to surgical equipment technical field, concretely is a cataract surgery with split nucleus cutter. BACKGROUND

[0002] Cataract is one of the main causes of blindness in the world, and the only effective treatment method is through surgery. Phacoemulsification is the most commonly used cataract surgery technique, and split nucleus operation is the key link. Split nucleus is the key link of phacoemulsification operation and the most challenging cataract surgery speed link for surgeons. Reasonable and effective split nucleus can reduce the release of phacoemulsification energy during surgery, improve surgical efficiency, shorten surgery time, and reduce the incidence of complications such as posterior capsule rupture and corneal edema. Split nucleus knife plays an important role in cataract surgery, especially in the split nucleus link of phacoemulsification. Different types of split nucleus knives have their own characteristics in design and application, but also have certain limitations. The cutting edge of the ophthalmic split nucleus knife is usually made of high-quality stainless steel, which has excellent corrosion resistance and cutting performance. The handle is designed according to human engineering, so that the doctor can hold and operate comfortably. The ophthalmic split nucleus knife is usually composed of a cutting edge and a handle. The cutting edge is the main part of the split nucleus knife, which is usually curved to adapt to the shape of the eyeball nucleus. The handle is the supporting and holding part of the cutting edge, which is usually straight or curved in shape to facilitate surgical operation.

[0003] The existing split nucleus knife for cataract surgery still has certain defects in actual use: the split nucleus knife has certain requirements for holding height and angle during surgery, and the operation difficulty is high, which requires the operator to have rich surgical experience. Novices will have hand shaking and sweating when they first start, and the existing split nucleus handle will slip and slip, which requires the doctor to constantly adjust, affecting the progress of the operation. Based on the existing technical deficiencies, the utility model designs a split nucleus cutter for cataract surgery. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a split nucleus cutter for cataract surgery, which has the advantages of fixing the split nucleus knife on the doctor's hand and avoiding slipping.

[0005] The utility model provides following technical scheme: A cataract operation is with split nucleus cutter, including cutter main part, the both sides of the outer surface of cutter main part are equipped with sliding slot, the inside of sliding slot is provided with fixed structure, the fixed structure includes antiskid sleeve, the both sides of the inner wall of antiskid sleeve are installed with sliding block, two sliding block and two sliding slot sliding connection, the inside of the sliding block of upper side is equipped with screw hole, the outer surface one side of antiskid sleeve is installed with fixed shaft, the inside rotation of fixed shaft is installed with elastic column, the one end of elastic column is installed with thumb cap, the outer surface both sides of thumb cap are installed with fixed seat, and the fixed seat between two is provided with woven fastening belt.

[0006] As a preferred technical scheme of the utility model, the left side of the sliding slot on the upper side is provided with a hollow groove, and the outer surface of the hollow groove is provided with a rotating rail on both sides.

[0007] As a preferred technical scheme of the utility model, the outer surface of the cutter main body is provided with a tool bit on one side, and the tool bit is replaceable.

[0008] As a preferred technical scheme of the utility model, the inside of the sliding slot on the upper side is provided with a rotating structure, and the rotating structure includes a threaded rod and a tooth sleeve.

[0009] As a preferred technical scheme of the utility model, the threaded rod is in threaded connection with the screw hole, and one end of the threaded rod is provided with an extension rod.

[0010] As a preferred technical scheme of the utility model, one end of the extension rod is in rotating connection with the inner wall of the hollow groove, and the outer surface of the extension rod is provided with a gear.

[0011] As a preferred technical scheme of the utility model, the tooth sleeve is in rotating connection with the two rotating rails, and the outer surface of the tooth sleeve is in meshing connection with the outer surface of the gear.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The split nucleus cutter for cataract operation is fixed on the hand of a doctor through the fixed structure, simplifies the operation, avoids the adjustment of the split nucleus cutter angle during the operation by beginners, makes the operation more convenient, greatly improves the efficiency, and avoids the sliding phenomenon.

[0014] 2. The cataract surgery split nucleus knife tool, through the rotating structure, before the operation, according to the doctor's habits of taking the scalpel, rotate the tooth sleeve, make the gear rotate by the tooth sleeve inner wall tooth, thus the threaded rod can follow the rotation, due to the limiting of the sliding block, the fixed structure can move horizontally in the sliding groove, thus the position of the fixed structure can be adjusted to adapt to different doctors' habits, improve the applicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the appearance structure schematic diagram of the utility model;

[0016] Figure 2 It is the knife head structure schematic diagram of the utility model;

[0017] Figure 3 It is the utility model Figure 2 It is the structure schematic diagram of A place in the utility model;

[0018] Figure 4 It is the fixed structure schematic diagram of the utility model;

[0019] Figure 5 It is the rotating structure schematic diagram of the utility model.

[0020] In the drawing: 1, tool body; 2, fixed structure; 21, anti-skid sleeve; 22, sliding block; 23, threaded hole; 24, fixed shaft; 25, elastic column; 26, thumb sleeve; 27, fixed seat; 28, woven fastening belt; 3, knife head; 4, sliding groove; 5, empty slot; 6, rotating rail; 7, rotating structure; 71, threaded rod; 72, tooth sleeve; 73, extension rod; 74, gear. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-5The utility model provides a cataract surgery split nucleus cutter, including cutter main body 1, the both sides of the outer surface of cutter main body 1 are equipped with sliding slot 4, the inside of sliding slot 4 is provided with fixed structure 2;Fixed structure 2 includes antiskid sleeve 21, the both sides of the inner wall of antiskid sleeve 21 are equipped with sliding block 22, two sliding blocks 22 are connected with two sliding slots 4 slidingly, the inside of upper sliding block 22 is equipped with screw hole 23, the outer surface of antiskid sleeve 21 one side is equipped with fixed shaft 24, the inside rotation of fixed shaft 24 is equipped with elastic column 25, the one end of elastic column 25 is equipped with thumb sleeve 26, the outer surface of thumb sleeve 26 both sides is equipped with fixed seat 27, and the fixed seat 27 between the two is equipped with knitted fastening band 28.

[0023] Please refer to Figures 2-3 The left side of upper sliding slot 4 is equipped with hollow groove 5, and the both sides of the outer surface of hollow groove 5 are provided with rotating rail 6. The outer surface of cutter main body 1 one side is equipped with cutter head 3, and the cutter head 3 is replaceable.

[0024] Hollow groove 5 is communicated with sliding slot 4, and the both sides of the outer surface of cutter main body 1 are welded with two rotating rails 6, and the inside has rail.

[0025] Please refer to Figure 2 And 5 The inside of upper sliding slot 4 is provided with rotating structure 7, and the rotating structure 7 includes threaded rod 71 and toothed sleeve 72. The threaded rod 71 is screw-connected with screw hole 23, and the one end of threaded rod 71 is equipped with extension rod 73. The one end of extension rod 73 is rotationally connected with the inner wall of hollow groove 5, and the outer surface of extension rod 73 is equipped with gear 74. The toothed sleeve 72 is rotationally connected with two rotating rails 6, and the outer surface of toothed sleeve 72 is meshed with the outer surface of gear 74.

[0026] According to the habit of doctor taking scalpel, rotating toothed sleeve 72 can drive gear 74 to rotate by the toothed sleeve 72 inner wall tooth, so that threaded rod 71 can rotate, and the fixed structure 2 can move horizontally in sliding slot 4 by the limiting of sliding block 22, so that the position of fixed structure 2 can be adjusted to adapt to different doctor habits.

[0027] The working principle is that when the cataract surgery split nucleus cutter is used, in the initial state, firstly, according to the habit of the doctor holding the surgical knife, the tooth sleeve 72 is rotated, the inner wall teeth of the tooth sleeve 72 drive the gear 74 to rotate, thereby the threaded rod 71 is rotated, and the fixed structure 2 is horizontally moved in the sliding groove 4 due to the limiting of the sliding block 22, thereby the position of the fixed structure 2 is adjusted to adapt to different habits of doctors, then the device body is sterilized, the thumb sleeve 26 is pried open from the broken part, the doctor's thumb is sleeved, then the woven fastening belt 28 is pulled tight and fixed, since the elastic column 25 is rotatable and has elasticity, when the anti-skid sleeve 21 follows the cutter body 1 to operate, the thumb sleeve 26 is not affected by the fixation, during the operation, the cutter body 1 is fixed as a fulcrum by the thumb, the rear is supported by the tiger mouth, and the nucleus is split by the index finger to move the cutter body 1, thereby the cutter body 1 is controlled.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cataract surgery nucleus splitting tool, comprising a tool body (1), characterized in that: Slide grooves (4) are provided on both sides of the outer surface of the tool body (1), and a fixing structure (2) is provided inside the slide groove (4); The fixing structure (2) includes an anti-slip sleeve (21), and sliders (22) are installed on both sides of the inner wall of the anti-slip sleeve (21). The two sliders (22) are slidably connected to the two slide grooves (4). A threaded hole (23) is provided inside the slider (22) near the top. A fixed shaft (24) is installed on one side of the outer surface of the anti-slip sleeve (21), and an elastic column (25) is rotatably installed inside the fixed shaft (24). A thumb sleeve (26) is installed at one end of the elastic column (25). Fixed seats (27) are installed on both sides of the outer surface of the thumb sleeve (26), and a woven fastening belt (28) is provided between the two fixed seats (27).

2. The cataract surgery nucleus chopping tool according to claim 1, characterized in that: An empty slot (5) is provided on the left side of the upper sliding slot (4), and rotating rails (6) are provided on both sides of the outer surface of the empty slot (5).

3. The cataract surgery nucleus chopping tool according to claim 1, characterized in that: A cutter head (3) is provided on one side of the outer surface of the tool body (1), and the cutter head (3) is replaceable.

4. The cataract surgery nucleus chopping tool according to claim 1, characterized in that: A rotating structure (7) is provided inside the upper sliding groove (4), and the rotating structure (7) includes a threaded rod (71) and a toothed sleeve (72).

5. The cataract surgery nucleus chopping tool according to claim 4, characterized in that: The threaded rod (71) is threadedly connected to the threaded hole (23), and an extension rod (73) is installed at one end of the threaded rod (71).

6. The cataract surgery nucleus chopping tool according to claim 5, characterized in that: One end of the extension rod (73) is rotatably connected to the inner wall of the empty slot (5), and a gear (74) is installed on the outer surface of the extension rod (73).

7. The cataract surgery nucleus chopping tool according to claim 4, characterized in that: The toothed sleeve (72) is rotatably connected to the two rotating rails (6), and the outer surface of the toothed sleeve (72) is meshed with the outer surface of the gear (74).

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