CN212118410U

CN212118410U - Nucleus splitter for cataract

Info

Publication number: CN212118410U
Application number: CN202020364048.1U
Authority: CN
Inventors: 孙礼华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-12-11
Anticipated expiration: 2030-03-20

Abstract

The utility model provides a nucleus ware is split to cataract relates to medical instrument technical field, the utility model discloses a hollow pole, hollow pole bottom are connected with hollow seat, are provided with linear drive mechanism in the hollow pole, are provided with the driving motor who is connected with linear drive mechanism in the hollow seat, and linear drive mechanism is connected with the operation needle, and linear drive mechanism is used for driving operation needle reciprocating motion, and operation needle top activity is passed hollow pole top and is connected with the core cover, the utility model has the advantages of convenient operation is swift, the precision is high, the error is little, greatly reduced operation risk.

Description

Nucleus splitter for cataract

Technical Field

The utility model relates to the technical field of medical equipment, particularly, relate to a nucleus ware is split to cataract.

Background

Cataracts are vision disorders caused by clouding of the crystalline lens, an important optical component of the human eyeball, which is normally clear. Opacity occurs due to denaturation of lens proteins for various reasons, resulting in a different degree of visual deterioration of the patient, which becomes a cataract and may eventually lead to blindness.

The extracapsular cataract extraction with posterior chamber type intraocular lens implantation is developed relatively mature at present, in the prior art, the utility model with the patent application number of '201420333147.8' discloses a 'nucleus cleaver for cataract surgery', which comprises a handle, a sleeve fixed on the handle and a surgical needle arranged in the sleeve in a penetrating way, wherein the front end of the surgical needle is provided with a nucleus sleeve, the rear end of the surgical needle is connected with a control component, and the control component can drive the surgical needle to move axially and reciprocally along the sleeve and make the nucleus sleeve deform and stretch into the sleeve; the utility model discloses a split nucleus ware for cataract surgery, sleeve and operation needle can form the little incision of cataract surgery, make the operation needle and the nuclear cover of its front end can make a round trip to move in the sleeve through the control assembly, can adjust the nuclear cover size in the anterior chamber of the eye, make the nuclear cover accomplish the operation of entangling the crystal nucleus and cutting the crystal nucleus, the flexible operation is convenient, the security is high, there is not the risk that the surrounding tissue is cut to the sword, reduce the tissue damage; the utility model discloses simple structure, convenient to use have very high popularization and application and worth. But this utility model also has certain defect at the in-service use in-process, needs manual operation during the operation to control operation needle reciprocating motion and adjust the nuclear cover size, because this operation is a very meticulous control process, cause certain error easily when leaning on manual operation regulation nuclear cover size, the operation degree of difficulty is big, requires than higher to operator's skill proficiency, has certain operation risk.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nucleus ware is split to cataract, it can reduce manual operation's adjusting error through mechanical automation regulation nuclear cover size to reduce the operation risk.

The embodiment of the utility model is realized like this:

the utility model provides a nucleus ware is split to cataract, includes hollow pole, and hollow pole bottom is connected with hollow seat, is provided with sharp actuating mechanism in the hollow pole, is provided with the driving motor who is connected with sharp actuating mechanism in the hollow seat, and sharp actuating mechanism is connected with the operation needle, and sharp actuating mechanism is used for driving operation needle reciprocating motion, and the activity of operation needle top passes hollow pole top and is connected with the core cover.

In some embodiments of the utility model, the linear driving mechanism includes the screw seat, and the operation needle setting is at screw seat top, and hollow rod inner wall is provided with along its vertical direction and leads the slide rail, and screw seat slidable ground sets up on leading the slide rail, and screw thread through connection has the lead screw on the screw seat, and the lead screw bottom stretches into in the hollow seat and is connected with driving motor.

In some embodiments of the present invention, the surgical needle is threadedly connected to the nut block.

In some embodiments of the present invention, the driving motor is a micro stepping motor.

The utility model discloses a some embodiments, the fixed cover in position that the lead screw is located hollow seat is equipped with first bevel gear, and a hollow seat side is provided with manual control mechanism, and manual control mechanism is used for driving first bevel gear and rotates.

The utility model discloses an in some embodiments, manual control mechanism is including the regulation pole that the activity runs through hollow seat lateral wall, and the one end that the regulation pole is located hollow seat is connected with second bevel gear, and second bevel gear can be connected with first bevel gear meshing, and the pot head that the regulation pole is located outside hollow seat is equipped with handheld cover.

In some embodiments of the present invention, the number of teeth of the second bevel gear is less than the number of teeth of the first bevel gear.

In some embodiments of the present invention, a door is disposed at one side of the hollow seat.

The utility model discloses an in some embodiments, still include protective sleeve, be provided with the internal thread in the protective sleeve, hollow pole upper end is provided with one section and interior screw-thread fit's external screw thread, and the nuclear cover is in protective sleeve.

The embodiment of the utility model provides an at least, have following advantage or beneficial effect:

1. the utility model discloses a driving motor can drive sharp actuating mechanism work to can drive the operation needle and contract toward hollow pole in, when nuclear cover part is received in the hollow pole, thereby make nuclear cover size diminish gradually, until adjusting the suitable size with the nuclear cover, degree of automation is high, through mechanical automation regulation nuclear cover size, the operation degree of difficulty is low, and has improved the operation precision, reduces manual operation's accommodate error, thereby reduces the operation risk.

2. When driving motor breaks down unable during operation, can be connected adjusting the pole and toward pushing away messenger's second bevel gear and first bevel gear meshing, hold handheld cover again and rotate and make the second bevel gear drive first bevel gear rotatory to make the lead screw continue to rotate in order to adjust the nuclear cover size, the utility model discloses have concurrently automatic and manually operation as an organic whole, can adapt to various in service behavior, the practicality is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a cataract nucleus splitter of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

fig. 3 is a schematic view of the connection structure of the surgical needle and the screw seat of the present invention.

Icon: 110-hollow rod, 120-hollow seat, 121-box door, 130-linear driving mechanism, 131-screw seat, 132-guide rail, 133-screw rod, 140-driving motor, 150-surgical needle, 160-core sleeve, 170-first bevel gear, 180-manual control mechanism, 181-adjusting rod, 182-second bevel gear, 183-hand sleeve and 190-protecting sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

Referring to fig. 1 to 3, the present embodiment provides a cataract nucleus splitting device, which includes a hollow rod 110, a hollow base 120 connected to a bottom of the hollow rod 110, a linear driving mechanism 130 disposed in the hollow rod 110, a driving motor 140 connected to the linear driving mechanism 130 disposed in the hollow base 120, a surgical needle 150 connected to the linear driving mechanism 130, the linear driving mechanism 130 configured to drive the surgical needle 150 to reciprocate, a top of the surgical needle 150 movably penetrates through a top of the hollow rod 110 and is connected to a core sleeve 160, and a movable through hole matched with the surgical needle 150 is formed at a top of the hollow rod 110.

During the use, hollow rod 110 is held to the hand, can drive sharp actuating mechanism 130 work through driving motor 140, thereby can drive operation needle 150 and contract toward hollow rod 110, when core cover 160 part is received in hollow rod 110, thereby make core cover 160 size diminish gradually, until adjusting core cover 160 to suitable size, make core cover 160 accomplish the operation of entangling the crystal nucleus and cutting the crystal nucleus, after the use, can drive operation needle 150 through driving motor 140 reversal and stretch out hollow rod 110, convenient operation is swift, the automation is high, adjust core cover 160 size through mechanical automation, the operation degree of difficulty is low, and the operation precision has been improved, reduce manual operation's regulation error, thereby reduce the operation risk.

It should be noted that the hollow rod 110 is not limited to a specific shape, and may be a cylindrical tube or a rectangular tube.

As a preferred embodiment, the linear driving mechanism 130 includes a screw seat 131, the surgical needle 150 is disposed on the top of the screw seat 131, the inner wall of the hollow rod 110 is provided with a guide rail 132 along the vertical direction thereof, the screw seat 131 is slidably disposed on the guide rail 132, a screw 133 is threadedly connected to the screw seat 131, the bottom of the screw 133 extends into the hollow seat 120 and is connected to the driving motor 140, here, the top of the hollow base 120 is provided with a ball bearing which is matched with the screw 133, the driving motor 140 can drive the screw 133 to rotate forward and backward, thereby driving the nut seat 131 to move up and down along the guide rail 132, thereby driving the surgical needle 150 to reciprocate, here, the guide rail 132 also serves to limit the rotation of the nut seat 131, so that the nut seat can only do linear motion, and it should be noted that the screw 133 only needs to be provided with threads at a position inside the hollow rod 110, and does not need to be provided with threads at a position inside the hollow seat 120.

As a preferred embodiment, the surgical needle 150 is screwed with the nut seat 131, so that the surgical needle 150 can be conveniently detached from the nut seat 131, a new surgical needle 150 can be conveniently installed, and the use standard of the surgical needle 150 is ensured.

It should be noted that, here, the driving motor 140 should have a forward and reverse rotation function, and can precisely control the rotation speed, so that the surgical needle 150 can slowly extend and retract, and therefore, as a preferred embodiment, the driving motor 140 is a micro stepping motor, and the stepping motor is an open-loop control element that converts an electric pulse signal into an angular displacement or a linear displacement. In the non-overload condition, the rotation speed and stop position of the motor only depend on the frequency and pulse number of the pulse signal, and are not influenced by the load change, when the stepping driver receives a pulse signal, the stepping driver drives the stepping motor to rotate by a fixed angle in a set direction, namely a stepping angle, and the rotation of the stepping motor is operated by one step at the fixed angle. The angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled; meanwhile, the rotating speed and the rotating acceleration of the motor can be controlled by controlling the pulse frequency, so that the purpose of speed regulation is achieved, and the use requirement is met.

The outer wall of the hollow base 120 is provided with a plurality of control buttons electrically connected with the driving motor 140 for controlling the start, stop, rotation direction and rotation speed of the driving motor 140.

As a better implementation mode, the first bevel gear 170 is fixedly sleeved at a position of the screw 133 in the hollow seat 120, a manual control mechanism 180 is disposed at one side end of the hollow seat 120, the manual control mechanism 180 is used for driving the first bevel gear 170 to rotate, the manual control mechanism 180 comprises an adjusting rod 181 movably penetrating through the side wall of the hollow seat 120, a ball guide sleeve matched with the adjusting rod 181 is disposed on the side wall of the hollow seat 120, a second bevel gear 182 is connected to one end of the adjusting rod 181 in the hollow seat 120, the second bevel gear 182 can be meshed with the first bevel gear 170, a handheld sleeve 183 is sleeved at one end of the adjusting rod 181 outside the hollow seat 120, patterns are formed on the surface of the handheld sleeve 183, and friction force between the handheld sleeve 183 and hands is.

When driving motor 140 the unable during operation that breaks down, then need guarantee through manual control mechanism 180 at this moment the utility model discloses can normal use, during the operation, with adjust pole 181 and inwards push up messenger second bevel gear 182 and be connected with first bevel gear 170 meshing, hold handheld cover 183 again and rotate messenger second bevel gear 182 and drive first bevel gear 170 rotatoryly to make lead screw 133 continue to rotate and cover 160 size in order to adjust the core, the utility model discloses it is as an organic whole with manual operation concurrently, it is multiple functional, can adapt to various in service behavior, the practicality is high.

It should be noted that, when the driving motor 140 is normally used, the second bevel gear 182 and the first bevel gear 170 are in a non-contact state, and only the first bevel gear 170 rotates therewith.

As a preferred embodiment, the number of teeth of the second bevel gear 182 is smaller than that of the first bevel gear 170, and similar to the lever principle, a certain saving force is achieved by the number of teeth, so that the operation is more convenient.

In a preferred embodiment, a door 121 is disposed at one side end of the hollow base 120, and when the driving motor 140 fails, the door 121 can be opened to replace or repair the driving motor 140.

It should be noted that the door 121 may be hinged to the hollow base 120, or may be connected to the hollow base 120 by a plurality of screws.

As a better implementation mode, still include protective sleeve 190, be provided with the internal thread in protective sleeve 190, hollow pole 110 upper end is provided with a section of external screw thread with internal thread complex, and nuclear cover 160 is in protective sleeve 190, when needing to use, can take off protective sleeve 190, and when not using, protective sleeve 190 threaded connection plays the effect of isolation protection operation needle 150 and nuclear cover 160 at hollow pole 110 top, avoids the pollution of external bacterium.

The utility model relates to a nucleus ware is split to cataract's theory of operation is: during automatic operation, start driving motor 140 and drive lead screw 133 and rotate to drive nut seat 131 along guide rail 132 and move down, thereby drive operation needle 150 and contract toward removing in the hollow pole 110, when nuclear cover 160 part is received in hollow pole 110, thereby make nuclear cover 160 size diminish gradually, until adjusting nuclear cover 160 to suitable size, make nuclear cover 160 accomplish the operation of entangling the crystal nucleus and cutting the crystal nucleus. When manual operation is needed, the adjusting rod 181 is pushed inwards to enable the second bevel gear 182 to be meshed with the first bevel gear 170, then the handheld sleeve 183 is held to rotate, the second bevel gear 182 drives the first bevel gear 170 to rotate, the screw rod 133 rotates, the surgical needle 150 is driven to retract towards the moving hollow rod 110, the size of the core sleeve 160 is adjusted, and the operations of sleeving the crystal core and cutting the crystal core are completed.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a nucleus ware is split to cataract which characterized in that, includes hollow pole, hollow pole bottom is connected with hollow seat, be provided with sharp actuating mechanism in the hollow pole, be provided with the driving motor who is connected with sharp actuating mechanism in the hollow seat, sharp actuating mechanism is connected with the operation needle, sharp actuating mechanism is used for driving operation needle reciprocating motion, operation needle top activity passes hollow pole top and is connected with the core cover.

2. The cataract nucleus splitter as claimed in claim 1, wherein the linear driving mechanism comprises a screw base, the surgical needle is disposed on top of the screw base, the inner wall of the hollow rod is provided with a guide rail along a vertical direction thereof, the screw base is slidably disposed on the guide rail, a screw rod is connected to the screw base in a threaded manner, and a bottom of the screw rod extends into the hollow base and is connected to the driving motor.

3. The cataract nucleus splitter of claim 2, wherein the surgical needle is threadedly coupled to the nut block.

4. The cataract nucleus splitter of claim 1 or claim 2, wherein the drive motor is a micro stepper motor.

5. The cataract nucleus splitter as recited in claim 2, wherein a first bevel gear is fixedly sleeved on a portion of the screw rod located in the hollow seat, and a manual control mechanism is disposed at one side end of the hollow seat and is configured to drive the first bevel gear to rotate.

6. The cataract nucleus splitter as claimed in claim 5, wherein the manual control mechanism comprises an adjusting rod movably penetrating through the side wall of the hollow seat, one end of the adjusting rod located inside the hollow seat is connected with a second bevel gear, the second bevel gear can be meshed with the first bevel gear, and one end of the adjusting rod located outside the hollow seat is sleeved with a handheld sleeve.

7. The cataract nucleus splitter of claim 6, wherein the number of teeth of the second bevel gear is less than the number of teeth of the first bevel gear.

8. The cataract nucleus splitter of claim 1, wherein a box door is disposed at one side end of the hollow base.

9. The cataract nucleus splitter as claimed in claim 1, further comprising a protective sleeve, wherein the protective sleeve is internally provided with an internal thread, the upper end of the hollow rod is provided with an external thread matching with the internal thread, and the nucleus is sleeved in the protective sleeve.