Rotary injection and suction handle of ultrasonic emulsification instrument

Abstract

The utility model relates to a rotary type ultrasonic emulsification instrument injection and suction handle which comprises an outer shell, a negative pressure pipe is fixed in the outer shell, one end of the negative pressure pipe extends out of the outer shell to be communicated with a negative pressure device, the negative pressure pipe is hinged to a suction pipe, the suction pipe is communicated with an inner cavity of the negative pressure pipe, and the suction pipe is driven by a driving device of the outer shell to rotate. The driving device is used for driving the suction pipe to rotate, the back side area of an incision can be adsorbed by sight lines in the process of sucking and breaking crystalline lenses, meanwhile, the infusion pipe arranged on the outer side of the suction pipe in a sleeving mode is not affected, and the suction pipe is arranged in the outer shell in a sleeving mode. And the expansion degree in the cornea is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of rotary phacoemulsification instrument injection suction handle. BACKGROUND

[0002] Phacoemulsification surgery is a kind of ophthalmology cataract surgical treatment means, its operating mode is to open incision on cornea edge, via this small incision place, extend into phacoemulsification needle head, after the turbid lens and cortex are broken, implant artificial lens after lens is extracted by phacoemulsification instrument injection suction handle (also as injection needle head).

[0003] Phacoemulsification instrument injection suction handle as the main instrument of operation, its end mainly has the suction pipe of broken lens extraction, secondly, it needs to continue to perfuse around in the process of suction, generally, for the convenience of operation, the existing injection end head has certain curvature, when operating, it is easy to be adsorbed to the area (such as adsorption area A in Figure 1 ) near injection end head after being in-depth from incision, and for the back side of incision (such as adsorption area B in Figure 1 ), it is difficult to operate, need doctor to rotate manually when operating, but perfusion port is also rotated to upper side after rotating, which leads to insufficient perfusion in cornea, not enough expansion and dilation, and further easily causes the problem of anterior chamber disappearance and posterior capsule rupture. CONTENT OF UTILITY MODEL

[0004] The utility model aims at solving the problem that the end head of existing phacoemulsification instrument injection suction handle is easy to cause insufficient perfusion in cornea due to operation, and provides a kind of rotary phacoemulsification instrument injection suction handle.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of rotary phacoemulsification instrument injection suction handle, including outer shell, negative pressure pipe is fixed in the outer shell, one end of the negative pressure pipe extends out of the shell and is communicated with negative pressure device, one end of the negative pressure pipe in the outer shell is hingedly connected with suction pipe, the suction pipe is communicated with the inner chamber of negative pressure pipe, the suction pipe is rotated by the driving device of outer shell;

[0007] Perfusion pipe is equipped in the outer shell and located outside suction pipe, the perfusion pipe extends out of the shell at both ends, and the perfusion pipe is connected with liquid inlet pipe at one end of negative pressure pipe, the other end extends out of the shell and is equipped with perfusion port, one end of the suction pipe away from the negative pressure pipe extends outside perfusion pipe and bends to one side.

[0008] Preferably, the driving device includes motor fixed on the outer shell, the output shaft of the motor is fixed with transmission gear, the back side of the suction pipe is fixed with passive gear that can mesh with transmission gear, and the suction pipe and negative pressure pipe are hingedly connected through bearing.

[0009] Preferably, the front end of the outer shell has a threaded protective cover.

[0010] Preferably, the middle part of the outer shell is concave.

[0011] Preferably, the surface of the outer shell has a ring-shaped protrusion to increase friction.

[0012] Preferably, the handle side has a switch for controlling the rotation of the motor.

[0013] The utility model has the following beneficial effects: the utility model drives the suction pipe to rotate by the driving device, can adsorb the cutout backside area according to the line of sight in the process of sucking and breaking the lens, and the perfusion pipe sleeved on the outside of the suction pipe is not affected when the suction pipe rotates, therefore, the perfusion of the eye cavity does not stop, and the expansion degree in the cornea is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The present application refers to the prior art of emulsification instrument suction process state diagram;

[0015] Figure 2 The utility model discloses an injection suction handle internal structure diagram;

[0016] Figure 3 The utility model discloses an embodiment Figure 2 Front end partial structure diagram;

[0017] Figure 4 The utility model discloses an embodiment Figure 2 Rear end partial structure diagram;

[0018] Figure 5 The utility model discloses an emulsification instrument injection suction handle external structure diagram.

[0019] In the drawing: A-adsorption area A;B-adsorption area B, 10-outer shell, 120-protective cover, 130-ring-shaped protrusion, 20-negative pressure pipe, 30-suction pipe, 40-perfusion pipe, 410-liquid inlet pipe, 420-perfusion port, 110-motor, 111-driving gear, 310-passive gear. DETAILED DESCRIPTION

[0020] The utility model will be explained in detail in combination with the drawings and specific embodiments.

[0021] A kind of rotary phacoemulsification instrument injection handle, including outer shell 10, negative pressure pipe 20 is fixed in the outer shell 10, one end of the negative pressure pipe 20 extends out of the outer shell 10 and communicates with negative pressure device, one end of the negative pressure pipe 20 in the outer shell 10 is hingedly connected with suction tube 30, the suction tube 30 communicates with the inner cavity of negative pressure pipe 20, the suction tube 30 is driven to rotate by the drive device of outer shell 10;

[0022] The outer shell 10 is located outside the suction tube 30 in the outer shell 10 and is provided with a perfusion tube 40, the perfusion tube 40 extends out of the outer shell 10 at both ends, the perfusion tube 40 is connected with a liquid inlet pipe 410 at one end of the negative pressure pipe, the other end extends out of the outer shell and is provided with a perfusion port 420, the end of the suction tube 30 away from the negative pressure pipe 20 extends out of the perfusion tube 40 and bends to one side.

[0023] In the embodiment, the negative pressure device is a negative pressure pump, which is generally arranged in the phacoemulsification instrument during operation, and the opening and closing of the negative pressure pump is controlled by a switch on the phacoemulsification instrument. The negative pressure pipe 20 is fixed in the outer shell and communicates with the phacoemulsification negative pressure device. The liquid inlet pipe 410 connected with the perfusion tube 40 is filled with perfusion liquid into the perfusion tube 40 by the pump body of the phacoemulsification instrument. The surface of the end of the perfusion tube 40 entering the cornea is provided with a perfusion port 420, which can continuously perfuse into the cornea.

[0024] During operation, the end of the suction tube 30 away from the negative pressure pipe 20 extends out of the perfusion tube 40 and bends to one side. It is necessary to enter the cornea from the incision and correspondingly separate and crush the lens. The suction tube 30 enters the cornea at the same time, and the perfusion tube 40 needs to be opened synchronously. Then, perfusion is performed in the cornea. After the adsorption of the port of the suction tube 30 on the front side is completed, the suction tube 30 is rotated by the driving device to realize the adsorption of the position below the incision and the position on the rear side of the incision (the side of the operator).

[0025] The driving device drives the suction tube to rotate, which can adsorb the area on the back side of the incision during the process of sucking and crushing the lens. At the same time, the rotation of the suction tube does not affect the perfusion tube sleeved on the outer side of the suction tube. Therefore, the perfusion of the inner cavity of the eye will not stop, and the expansion degree of the cornea is ensured.

[0026] In an embodiment of the utility model, the driving device includes a motor 110 fixed on the outer shell 10, the output shaft of the motor 110 is fixed with a transmission gear 111, the rear side of the suction tube 30 is fixed with a driven gear 310 which can mesh with the transmission gear, and the suction tube 30 and the negative pressure pipe 20 are hingedly connected through a bearing.

[0027] A sealing ring or a sealing element should be used between the end of the perfusion tube 40 extending out of the outer shell 10 and the suction tube 30 to ensure that the suction tube 30 does not leak perfusion liquid during rotation.

[0028] The front end of the outer shell 10 has a threaded protective cover 120, the middle part of the outer shell is concave to facilitate holding, and the surface of the outer shell 110 has an annular protrusion 130 to improve the friction when holding with hands.

[0029] The handle side has a switch for controlling the rotation of the motor.

[0030] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A rotary ultrasonic emulsifier injection handle, characterized in that, The utility model relates to a negative pressure suction device, including the outer casing, the outer casing is fixed with negative pressure pipe, negative pressure pipe one end stretches out the outer casing and communicates with negative pressure device, negative pressure pipe is located in the outer casing one end articulated connection has the suction pipe, the suction pipe communicates with negative pressure pipe inner chamber, the suction pipe is driven to rotate by the drive arrangement of outer casing, The outer casing is provided with a perfusion tube outside the suction tube, the perfusion tube extends out of the outer casing at both ends, the perfusion tube is connected with a liquid inlet pipe at one end of the negative pressure tube, the other end extends out of the outer casing and is provided with a perfusion port, and the end of the suction tube away from the negative pressure tube extends out of the perfusion tube and bends to one side.

2. The phacoemulsification handpiece of claim 1, wherein: The drive device includes a motor fixed to the outer casing, the output shaft of the motor is fixed with a transmission gear, the rear side of the suction tube is fixed with a driven gear that can engage with the transmission gear, and the suction tube and the negative pressure tube are hingedly connected through a bearing.

3. The phacoemulsification handpiece of claim 1, wherein: The front end of the outer casing has a threaded protective cover.

4. The phacoemulsification handpiece of claim 1, wherein: The middle of the outer casing is concave.

5. The phacoemulsification handpiece of claim 1, wherein: The surface of the outer casing has an annular protrusion to improve friction.

6. The phacoemulsification handpiece of claim 1, wherein: The side of the handle has a switch for controlling the rotation of the motor.

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