CN209518889U - A puncture-inserted integrated double-headed iris retractor - Google Patents

Abstract

The utility model belongs to the field of medical equipment, and relates to a puncture-inserted integrated double-headed iris hook; it is mainly composed of a puncture needle, a double-headed iris hook, a sleeve, a push-pull rod and a silicone fixing sleeve; the double-headed iris hook Placed in the puncture needle, the puncture needle is fixedly connected with the sleeve, the push-pull rod is fixed and interlocked with the iris hook in the sleeve, and the silicone is fixedly sleeved at the tail of the push-pull rod. The results of use show that In the operation of the utility model, the incision puncture and retractor insertion are completed at the same time, the insertion stability is good, and the operation operation is simple; the iris pulling effect is good, and the degree of pupil dilation can meet the needs of cataract phacoemulsification surgery, which solves the problem of high difficulty in cataract surgery with small pupils. The problem of high risk and many complications, and reduce surgical steps, avoid repeated operations, and improve the stability of surgical operations.

Description

A puncture-inserted integrated double-headed iris retractor

technical field

The utility model belongs to the field of medical equipment and relates to an iris hook used for eye surgery, in particular to a puncture-inserted integrated double-headed iris hook.

Background technique

It is currently known that cataract is the eye disease with the highest blinding rate among the elderly, and surgical treatment is currently the most effective method. In order to fully expose the surgical operation interface, it is necessary to ensure that the pupil is large enough during the operation. Before the operation, it is first necessary to select the appropriate drug to dilate the pupil. to dilate the pupils. However, in difficult and complex cataract surgery, small pupils and iris adhesions often occur. The above methods cannot effectively dilate the pupils. In the case of small pupils, the operation is difficult and risky. If not handled properly, it is easy to Produce a variety of complications and adverse consequences.

During the operation, the pupil size can be effectively adjusted through mechanical traction. At present, the commonly used method is to first make a puncture around the cornea, and then insert an adjustable nylon retractor with an adjustable silicone sleeve on the hook. However, it has been found in practical observation that the puncture opening is often blocked by small blood clots or the pressure difference between the inside and outside of the eye in the gap between the puncture incision and the insertion of the iris retractor. Entering the incision under resistance can easily cause eye damage; in addition, the nylon material iris retractor is highly flexible, and the tail is clamped by microscopic instruments during the insertion process, which has poor stability.

In addition, most of the existing iris retractor heads are single retractors, and the double retractors are not easy to enter the eye through the puncture opening. However, the contact surface between the single retractor and the iris at the edge of the pupil is relatively narrow, often requiring multiple retractors to effectively dilate the pupil in multiple directions, and multiple incisions need to be punctured; the stability of the single retractor is poor, and it is easy to slip during the operation. Operation of fixed retractors can aggravate tissue damage and postoperative inflammatory response.

Therefore, there is an urgent need for a puncture-inserted integrated double-headed iris retractor, which can be used to pull the iris to dilate the pupil during cataract surgery, especially for complex cataract operations, and can pull the iris more effectively and safely. The iris dilates the pupil, reduces surgical steps, avoids repeated operations, and improves the stability of surgical operations.

Contents of the invention

The purpose of the utility model is to overcome the defects or deficiencies of the prior art, and provide a puncture-inserted integrated double-headed iris retractor, which can more effectively and safely pull the iris to expand when used in complex cataract operations. pupil, reduce surgical steps, avoid repeated operations, and improve the stability of surgical operations.

The puncture insertion integrated double-headed iris hook of the utility model is characterized in that it is mainly composed of a puncture needle 1, a double-headed iris hook 2, a casing 3, a push-pull rod 4 and a silicone fixing sleeve 5; the double-headed iris hook 2 placed in the puncture needle 1, the puncture needle 1 is fixedly connected with the sleeve 3, the push-pull rod 4 is fixed and interlocked with the iris hook 2 in the sleeve 3, and the silicone gel is fixed The sleeve 5 is fixed on the tail of the push-pull rod 4;

In the present utility model, the inner diameter of the puncture needle 1 is not less than twice the body diameter of the double-ended iris hook 2;

In the utility model, the double-head iris hook 2 is built in the puncture needle 1, and its head is double U-shaped; the head and body of the double-head iris hook 2 are made of nylon material; the double-head The tail of the iris hook 2 is made of hard PP material, which is convenient for the silicone fixing sleeve 5 to be inserted and fixed from the back;

In the present utility model, the front part of the sleeve 3 is connected and fixed with the puncture needle 1; the upper outer wall of the sleeve 3 is provided with a sleeve anti-slip texture 31;

In the utility model, the front part of the push-pull rod 4 is provided with a hard push-in plug 41, which is fixedly connected with the tail of the double-headed iris hook 2; placed in the puncture needle 1;

The push-pull rod 4 is connected to the push-in plug 41 through an anti-slip rubber sleeve 42; the outer diameter of the push-pull rod 4 is smaller than the inner diameter of the sleeve 3, and the anti-slip rubber sleeve 42 is closely attached to the sleeve 3 The inner wall of the push-in plug 41 has a diameter smaller than the inner diameter of the puncture needle 1;

In the utility model, the silica gel fixing sleeve 5 is fixed to the tail of the push-pull rod 4; the silica gel fixing sleeve 5 is used to fix the double-ended iris hook after pulling out the puncture needle 1 and the sleeve 3 2, and control the length of the entry and exit.

In the embodiment of the present utility model,

The length of the puncture needle 1 is 10mm;

The length of the double-ended iris pull hook 2 is 8mm;

The length of the sleeve 3 is 12mm.

In the utility model, the iris retractor is built into the puncture needle, which can realize corneal puncture and iris insertion at the same time, reduce operation steps, and solve the problem of incision blockage after puncture. Linking the iris retractor through the push-pull rod makes the insertion operation more stable, and the length of the iris retractor's entry and exit is finely controlled. The design of the double-headed iris retractor can increase the area of the iris, improve the effect of expanding the surgical field of view, and reduce the number of corneal punctures and iris retractors.

Compared with the prior art, the utility model has beneficial effects and remarkable progress in that:

1) The incision of the puncture needle and the insertion of the double-headed iris retractor are completed at the same time to prevent the gap from being blocked again and avoid repeated operations;

2) The puncture needle is equipped with a soft double-headed iris hook, which is fixedly connected with the sleeve, and has high operational stability;

3) The double-headed iris hook is placed in the puncture needle to solve the problem that the double-headed iris hook is not easy to enter the puncture port;

4) The double-headed iris retractor can pull the iris with a large area, improve the pulling stability, have a good effect of dilating the pupil, and reduce the number of retractors used.

5) The tail of the double-ended iris hook is made of hard material, which is easier to insert when the silicone sleeve falls off.

For ease of understanding, the puncture-inserted integrated double-headed iris retractor of the present invention will be described in detail below through specific drawings and embodiments. It should be pointed out that the specific examples and accompanying drawings are only for illustration, and those of ordinary skill in the art can make various amendments and changes within the scope of the utility model according to the description herein. Modifications and changes are also included within the scope of the present invention.

Description of drawings

Figure 1 is a side view of the puncture-inserted integrated double-headed iris hook of the present invention;

Fig. 2 is the puncture schematic diagram in the embodiment of the present utility model;

Fig. 3 is a schematic diagram of placing the iris puller after the incision puncture described in the embodiment of the present utility model;

Fig. 4 is a schematic diagram of pulling out the puncture needle and the cannula and putting on the silicone fixing sleeve after the iris is fixed in the embodiment of the present invention;

Fig. 5 is a schematic diagram of taking out the iris hook described in the embodiment of the present invention;

In Figures 1 to 5, 1 is the puncture needle, 2 is the double-ended iris hook, 21 is the head of the hook, 22 is the hard tail of the hook, 3 is the sleeve, 31 is the anti-slip texture of the sleeve, 4 is the push-pull rod, and 41 is the Push plug, 42 are anti-slip rubber sleeves, 5 are silica gel fixing sleeves.

Detailed ways

The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings in the embodiments of the present invention.

Example 1

As shown in Figures 1 to 5, this puncture is inserted into an integrated double-headed iris retractor, which is mainly composed of a puncture needle 1, a double-headed iris retractor 2, a sleeve 3, a push-pull rod 4, and a silicone fixing sleeve 5; the double-headed iris The pull hook 2 is placed in the puncture needle 1, the puncture needle 1 is fixedly connected with the sleeve 3, the push-pull rod 4 is fixed and interlocked with the iris pull hook 2 in the sleeve 3, and the silicone rubber The fixed sleeve 5 is fixed on the tail of the push-pull rod 4;

The inner diameter of the puncture needle 1 is not less than twice the body diameter of the double-ended iris hook 2; the length of the puncture needle 1 is 10mm;

The double-headed iris hook 2 is built in the puncture needle 1, and its head is double U-shaped; the head and body of the double-headed iris hook 2 are made of nylon material; the tail of the double-headed iris hook 2 It is made of hard PP material, which is convenient for the silicone fixing sleeve 5 to be inserted and fixed from the back; the length of the double-headed iris hook 2 is 8mm;

The front part of the sleeve 3 is connected and fixed with the puncture needle 1; the upper outer wall of the sleeve 3 is provided with a sleeve anti-slip texture 31; the length of the sleeve 3 is 12 mm;

The front portion of the push-pull rod 4 is provided with a hard push-in plug 41, which is fixedly connected with the tail of the double-ended iris hook 2; inside needle 1;

The push-pull rod 4 and the push-in plug 41 are connected by an anti-slip rubber sleeve 42; the outer diameter of the push-pull rod 4 is smaller than the inner diameter of the sleeve 3, and the anti-slip rubber sleeve 42 is closely attached to the sleeve. The inner wall of the tube 3, the diameter of the push plug 41 is smaller than the inner diameter of the puncture needle 1;

The silicone fixing sleeve 5 is fixed to the tail of the push-pull rod 4; the silicone fixing sleeve 5 is used to fix the double-ended iris hook 2 after pulling out the puncture needle 1 and the cannula 3, and control the access length.

Example 2

As shown in Figures 1 to 5, this puncture is inserted into an integrated double-headed iris retractor, which is mainly composed of a puncture needle 1, a double-headed iris retractor 2, a sleeve 3, a push-pull rod 4, and a silicone fixing sleeve 5; the double-headed iris The draw hook 2 is built in the puncture needle 1, the puncture needle 1 is fixedly connected with the sleeve 3, the push-pull rod 4 is fixed and interlocked with the iris draw hook 2 in the sleeve 3, and the silicone rubber The fixed sleeve 5 is fixed on the tail of the push-pull rod 4;

During phacoemulsification cataract surgery with small pupils, a 2.6mm transparent corneal incision was made at 11:00 with oxybucaine hydrochloride topical anesthesia, and viscoelastic was injected into the anterior chamber through the incision to maintain the depth of the anterior chamber;

Hold the anti-slip thread of the cannula at 31 points, perform anterior chamber puncture at the 12 o'clock position of the eye, and make a puncture incision;

After the incision is punctured, the push-pull rod 4 is pushed forward, and the plug 41 is pushed forward in conjunction with the push-pull rod. During the insertion process, the double-headed retractor 21 at the head of the iris retractor is naturally unfolded, and the retractor head 21 is fixed at the edge of the iris;

After the iris retractor is placed, adjust the orientation so that the retractor head 21 is drawn on the edge of the pupil, pull the sleeve 3 outward, the rigid tail 22 of the retractor can be separated from the push plug 41, and pull out the puncture needle 1 and sleeve Tube 3 and push-pull rod 4; remove the silicone fixing sleeve 5 fixed at the tail of the push-pull rod, and pass through the hard tail 22 of the push-pull rod to the body of the iris retractor. If it is accidentally detached during the operation, it is easier to insert it again;

Puncture and implant the utility model at the 4 o'clock and 8 o'clock positions of the eyes as above, move the silicone fixing sleeve back and forth to control the pulling length to dilate the pupil, and continue the phacoemulsification cataract operation;

Make a 2.6mm clear corneal main incision at 11 o'clock, inject viscoelastic agent into the anterior chamber from the incision, and perform 5.5mm continuous circular capsulorhexis with capsulorhexis forceps through the main incision, and perform lens nucleus with phacoemulsifier after sufficient water separation After the phacoemulsification, replace the injection and suction handle to absorb the residual cortex, inject viscoelastic agent into the capsular bag again, implant the intraocular lens, and absorb the residual viscoelastic agent.

After phacoemulsification and intraocular lens implantation, take out the double-headed iris retractor 2, gently push the silicone fixing sleeve 5 backward with tweezers, so that the retractor head 21 is loosened from the iris, drag the iris retractor tail 22, and place it on the double-headed retractor head 21. When approaching the vicinity of the puncture port, the elastic double-headed drag hook 21 will automatically draw close to the puncture port due to the material;

The results of the above-mentioned examples show that during the operation of the utility model, the incision puncture and retractor insertion are completed at the same time, and there is no problem of high resistance to the insertion of the retractor due to the obstruction of the puncture opening. Good pulling effect, pupil dilation can meet the needs of phacoemulsification surgery, solve the problem of high difficulty, high risk, and many complications in cataract surgery with small pupils, reduce surgical steps, avoid repeated operations, and improve the stability of surgical operations.

Claims (9)

1. A puncture-inserted integrated double-headed iris hook, characterized in that it mainly consists of a puncture needle (1), a double-headed iris hook (2), a sleeve (3), a push-pull rod (4) and a silicone fixing sleeve ( 5) composition; the double-headed iris hook (2) is placed in the puncture needle (1), the puncture needle (1) is fixedly connected with the sleeve (3), and the push-pull rod (4) is in the The casing (3) is fixed and interlocked with the iris hook (2), and the silicone fixing sleeve (5) is fixed at the tail of the push-pull rod (4). 2. The puncture-inserted integrated double-headed iris retractor according to claim 1, characterized in that the inner diameter of the puncture needle (1) is greater than or equal to twice the body diameter of the double-headed iris retractor (2) . 3. The integrated double-headed iris retractor for puncture insertion according to claim 1, characterized in that the length of the puncture needle (1) is 10 mm. 4. The puncture-inserted integrated double-headed iris retractor according to claim 1, characterized in that the heads of the double-headed iris retractor (2) are double U-shaped. 5. The puncture-inserted integrated double-headed iris retractor according to claim 1, characterized in that the length of the double-headed iris retractor (2) is 8 mm. 6. The puncture-inserted integrated double-headed iris retractor according to claim 1, characterized in that, the upper outer wall of the sleeve (3) is provided with a sleeve anti-slip texture (31). 7. The puncture-inserted integrated double-headed iris retractor according to claim 1, characterized in that the length of the sleeve (3) is 12 mm. 8. The puncture-inserted integrated double-headed iris retractor according to claim 1, characterized in that, the front part of the push-pull rod (4) is provided with a hard push-in plug (41), and the push-in plug (41 ) is fixedly connected with the tail of the double-ended iris hook (2); the front connection part of the push plug (41) is placed in the puncture needle (1). 9. The puncture-inserted integrated double-headed iris retractor according to claim 8, characterized in that the push-pull rod (4) is connected with the push-in plug (41) through a non-slip rubber sleeve (42); The outer diameter of the push-pull rod (4) is smaller than the inner diameter of the sleeve (3), the anti-slip rubber sleeve (42) is closely attached to the inner wall of the sleeve (3), and the diameter of the push plug (41) smaller than the inner diameter of the puncture needle (1).