CN219963244U

CN219963244U - Positioning device

Info

Publication number: CN219963244U
Application number: CN202320311705.XU
Authority: CN
Inventors: 沈烨宇; 龚曦
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-11-07
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses a positioning device, and belongs to the technical field of medical appliances. The positioning device comprises a handle, an elastic pouring pipe and a throttling assembly, wherein the elastic pouring pipe is arranged in the handle; the positioning tubule is detachably arranged with the handle, and the inner cavity of the positioning tubule is communicated with the elastic perfusion tube; the throttle component is arranged on the handle in a sliding way and is used for adjusting the flow of the elastic pouring tube in a sliding way. The positioning tubule that this positioning device set up equipment is convenient, and is simultaneously more fine, and the intraocular operation of being convenient for is through the pipe diameter size of slip regulation subassembly, comes control elasticity filling pipe to reach the purpose of adjusting elasticity filling pipe flow, this throttling assembly simple structure, adjust convenient, increase durability, reduce the apparatus spoilage.

Description

Positioning device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a positioning device.

Background

ICL intraocular lens is a soft intraocular lens, which is an innovative technological result in the field of modern ophthalmic refractive correction, and can be placed in the anterior safety zone of human eye lens, with a thickness of only about 50 microns, which is thinner than the diameter of hair, and the postoperative vision is superior to the refractive correction techniques implemented on the cornea, with the use of frame glasses, contact lenses, and other refractive correction techniques, ICL implantation being an effective method currently used to correct myopia, especially high myopia. The procedure requires first making a corneal incision, then implanting ICL into the eye (anterior chamber), then injecting a viscoelastic to maintain the anterior chamber, adjusting the ICL to a position anterior to the posterior iris crystal using an ICL positioning hook with the viscoelastic maintaining the anterior chamber, then flushing the anterior chamber, and flushing the viscoelastic in the anterior chamber. However, the viscoelastic agent is needed to be used in the operation, so that the cost is increased, and in addition, incomplete flushing can exist when the viscoelastic agent is flushed, which can cause the early intraocular pressure to rise after the operation, and influence the recovery of a patient, and meanwhile, the operation time is increased when the viscoelastic agent is injected and the viscoelastic agent is flushed later, and the probability of related complications such as ICL rotational displacement, iris extraction, intraocular infection and the like caused by related operations is increased.

The existing perfusion adjusting device of the ICL position adjusting hook is too complex, in operation perfusion, the possibility that tiny foreign matters remained in the throttle valve enter eyes along with perfusate exists, and the adjusting button can only realize perfusion adjustment of two fixed gears, so that the flow of the perfusate is inconvenient to continuously adjust in a stepless manner.

Disclosure of Invention

The utility model aims to provide a positioning device so as to solve the technical problems of complex structure and inconvenient operation of the perfusion adjusting device in the background technology to at least a certain extent.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a positioning device comprises a positioning device, a positioning device and a positioning device,

a handle;

an elastic pouring tube arranged in the handle;

the positioning tubule is detachably arranged with the handle, and the inner cavity of the positioning tubule is communicated with the elastic perfusion tube;

and the throttling assembly is arranged on the handle in a sliding manner and is used for adjusting the flow of the elastic pouring tube in a sliding manner.

In one embodiment of the present utility model, the throttle assembly includes:

the sliding block is arranged on the handle in a sliding manner;

the extrusion block is arranged in the handle, connected with the adjusting slide block and used for sliding and extruding the pipe wall of the elastic pouring pipe.

According to one embodiment of the utility model, the handle is provided with the sliding groove along the length direction of the handle, the sliding block is arranged in the sliding groove in a matched mode, and the sliding block is arranged in a sliding mode along the length direction of the sliding groove.

According to one embodiment of the utility model, a stop block is arranged in the handle, a communication area with gradually reduced clearance is formed between the stop block and the extrusion block, and the elastic pouring pipe is arranged between the extrusion block and the inclined stop block in a penetrating way.

In one embodiment of the utility model, the stop block is arranged in the handle in a way of inclining towards the direction of the positioning tubule.

According to one embodiment of the utility model, the positioning tubule is provided with a positioning end and a mounting end, the mounting end is elastically sleeved on the handle, and the positioning end is provided with a pouring hole.

In one embodiment of the utility model, the positioning end and the mounting end of the positioning tubule are bent, and the bending angle between the positioning end and the mounting end of the positioning tubule is 120-150 degrees.

In one embodiment of the utility model, the end part of the positioning end is arranged in a convex arc shape towards the bending direction, and the end part of the positioning end is provided with a hemispherical protrusion away from the bending direction.

In one embodiment of the present utility model, the pouring holes are symmetrically arranged on two sides of the positioning end.

In one embodiment of the present utility model, the cross section of the positioning tubule is flat elliptic.

Compared with the prior art, the utility model has the beneficial effects that at least:

the positioning device provided by the utility model comprises a handle, an elastic pouring pipe and a throttling component, wherein the elastic pouring pipe is arranged in the handle; the positioning tubule is detachably arranged with the handle, and the inner cavity of the positioning tubule is communicated with the elastic perfusion tube; the throttle component is arranged on the handle in a sliding way and is used for adjusting the flow of the elastic pouring tube in a sliding way. The positioning tubule that this positioning device set up equipment is convenient, and is simultaneously more fine, and the intraocular operation of being convenient for is through the pipe diameter size of slip regulation subassembly, comes control elasticity filling pipe to reach the purpose of adjusting elasticity filling pipe flow, this throttling assembly simple structure, adjust convenient, increase durability, reduce the apparatus spoilage.

Drawings

FIG. 1 is an overall block diagram of an adjustment device of the present utility model;

FIG. 2 is a handle block diagram of the adjustment device of the present utility model;

FIG. 3 is a block diagram of a throttle assembly within a handle portion of the present utility model;

FIG. 4 is a block diagram of a positioning tubule of the inventive adjustment apparatus;

FIG. 5 is an enlarged view of the structure of portion A of FIG. 4 in accordance with the present utility model;

in the figure: 1. a handle; 2. an elastic perfusion tube; 3. positioning tubules; 4. a throttle assembly; 10. an outer cone end; 31. a mounting end; 32. a position adjusting end; 321. hemispherical protrusions; 33. pouring holes; 41. a slide block; 42. extruding a block; 43. and a stop block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Current ICL (Implantable Collamer Lens (implantable contact lens)) surgery is largely classified into "viscoelastic surgery" and "non-viscoelastic surgery" depending on the manner of the surgical procedure. The former is before or after the injection ICL crystal to the anterior chamber of the eye, pours into a proper amount of viscoelastic agent into, relies on its supporting role to anterior chamber, realizes ICL positioning etc. intraocular operation, and the apparatus that the operation was used contains solid position-adjusting hook of metal, need wash out viscoelastic agent from the intraocular after the operation is finished, in this process, the residual of postoperative intraocular viscoelastic agent can not appear to arouse postoperative intraocular pressure rising etc. complication, influence postoperative patient's vision recovery. The operation without viscoelastic agent is mainly to replace viscoelastic agent by adopting the method of anterior chamber liquid infusion, and plays a role in maintaining the anterior chamber. Irrigation is typically performed by inserting a separate irrigation tube into the anterior chamber, and maintaining fluid infusion during surgery, but this requires additional preparation of a corneal incision for the irrigation pathway, which increases surgical trauma. Meanwhile, the risk of unstable anterior chamber and even the falling-off anterior chamber of the perfusion tube and disappearance of the anterior chamber due to the unmatched perfusion incision and the unmatched perfusion tube head exists in the operation, and the possibility of accidentally injuring the iris, the lens and the corneal endothelium exists in the metal perfusion head during the insertion of the anterior chamber and the operation. These have limited the popularity of non-viscoelastic surgery.

In order to solve these problems, some of the prior utility models have been also solved. By searching, the latest and most representative is "an ICL positioning hook with perfusion" (patent publication No. CN 213963899U). The perfusion fluid is drained into eyes through a sleeve pipe positioned at the head part of the positioning hook by the hollow handle, and simultaneously, the flow of the perfusion fluid is controlled by an adjusting button arranged at the handle. But in the prior art: 1. the top end of the positioning hook is too thick, and the existence of the perfusion sleeve is clumsy in the anterior chamber, which is unfavorable for the fine intraocular operation of ICL crystal positioning, and is easy to touch the corneal inner skin surface and the iris surface of the peripheral anterior chamber during operation, thereby causing unnecessary damage. 2. The perfusion regulating device is too complex and is easy to damage in the use process of repeated high-temperature disinfection; and dirt is easy to be accumulated, and in the operation perfusion, tiny foreign matters remained in the throttle valve can enter eyes along with perfusate. Meanwhile, the adjusting button can only realize the perfusion adjustment of two fixed gears, and cannot realize continuous stepless adjustment. 3. The whole design of the position-adjusting hook is too complex and is divided into a hard metal component (namely an instrument unit) and a soft sleeve component (namely a consumable unit), which is similar to a super handle of a cataract ultrasonic emulsifying instrument, has high manufacturing cost, is easy to damage and is difficult to maintain, and is not beneficial to popularization and promotion of the technology.

In view of the above drawbacks, the present utility model provides a positioning device, in combination with fig. 1, comprising a handle 1, an elastic irrigation tube 2, a positioning tubule 3 and a throttling assembly 4, wherein:

the elastic pouring tube 2 is arranged in the handle 1, and pouring liquid flows through the elastic pouring tube 2.

The positioning tubule 3 is detachably arranged with the handle 1, the inner cavity of the positioning tubule 3 is communicated with the elastic filling pipe 2, and the filling liquid in the elastic filling pipe 2 flows into the positioning tubule 3 and finally flows out from the positioning tubule 3. The cross section of the positioning tubule 3 is flat oval, which is made of hard metal material, so that the positioning end 32 of the positioning tubule 3 reduces the expansion degree of the incision of the operation, improves the airtight degree of the incision, and further improves the stability of the anterior chamber.

The throttle assembly 4 is slidably arranged on the handle 1 for slidably adjusting the flow rate of the elastic pouring tube 2.

The positioning tubule 3 that this positioning device set up equipment is convenient, and is simultaneously more fine, is convenient for the intraocular operation, through slip adjusting part, controls the pipe diameter size of elasticity filling pipe 2 to reach the purpose of adjusting elasticity filling pipe 2 flow, this throttling part 4 simple structure, adjust convenient, increase durability, reduce the apparatus spoilage.

In one embodiment, the throttle assembly 4 comprises a slide 41 and an extrusion block 42, wherein:

the slider 41 is slidably disposed on the handle 1.

The extrusion block 42 is arranged in the handle 1 and connected with the adjusting slide block 41 for sliding extrusion of the pipe wall of the elastic pouring pipe 2.

The handle 1 is provided with a chute along the length direction thereof, the sliding block 41 is arranged in the chute in a matched manner, and the sliding block 41 is arranged in a sliding manner along the length direction of the chute. The sliding direction of the sliding block 41 is limited, so that the doctor can conveniently perform the sliding operation to change the flow of the perfusate.

The handle 1 is internally provided with a stop block 43, a communication area with gradually reduced clearance is formed between the stop block 43 and the extrusion block 42, and the elastic pouring tube 2 is arranged between the extrusion block 42 and the inclined stop block 43 in a penetrating way.

The stop block 43 is arranged in the handle 1 in a tilting and protruding way towards the positioning tubule 3.

In the throttling assembly 4, the extrusion block 42 is driven to move by the sliding block 41, so that the size of a gap between the extrusion block 42 and the stop block 43 is changed, and the pipe diameter flow of the elastic perfusate is regulated. Specifically, when the sliding block 41 slides forward, as the stop block 43 is arranged in the handle 1 in a protruding manner in the direction of the positioning tubule 3, the gap between the extrusion block 42 and the stop block 43 is gradually reduced, the extrusion block 42 is gradually extruded on the elastic pouring tube 2, so that the flow rate of the elastic pouring tube 2 is reduced, when the sliding block 41 slides to the forefront end, the gap between the extrusion block 42 and the stop block 43 is minimum, the inner diameter of the elastic pouring tube 2 is completely extruded and blocked, and the flow rate of pouring liquid is zero; when the sliding block 41 slides to the rearmost end, the gap between the extrusion block 42 and the stop block 43 is the largest, the extrusion block 42 can not extrude the elastic pouring tube 2, the inner diameter of the elastic pouring tube 2 is completely penetrated, and the flow rate of the pouring liquid is the largest, so that continuous stepless pouring flow rate adjustment is realized.

In one embodiment, the positioning tubule 3 is provided with a positioning end 32 and a mounting end 31, the mounting end 31 is elastically sleeved on the handle 1, and the positioning end 32 is provided with a pouring hole 33. The installation end 31 of the positioning tubule 3 is made of elastic materials, wherein the outer cone end 10 of the handle 1 is arranged in a shape, so that the installation or the disassembly of the positioning tubule 3 on the handle 1 can be realized in a plugging mode, and the arrangement is simple and convenient in structure.

In one embodiment, the positioning end 32 of the positioning tubule 3 is bent with the mounting end 31, and the bending angle between the positioning end 32 of the positioning tubule 3 and the mounting end 31 is 120 ° -150 °. The doctor observes the position setting of position setting tubule 3 through the microscope, and when position setting tubule 3 stretches into the intraocular position setting, the position setting tubule 3 of buckling can effectively avoid blockking microscopic light path, just so can not cause the sight to the doctor operation to block, more be convenient for operation.

In one embodiment, the end of the positioning end 32 is arranged in a convex arc shape in the bending direction, the end of the positioning end is provided with a hemispherical protrusion 321 in the direction away from the bending direction, and the diameter of the hemispherical protrusion 321 is 1mm. The positioning end 32 thus arranged effectively increases the safety, strength, sensitivity and holding power of the positioning hook on the ICL crystal, thereby facilitating ICL positioning operation.

In one embodiment, the pouring holes 33 are symmetrically arranged on both sides of the positioning end 32, and 2 pouring holes on each side have a diameter of 23G (about 0.57-0.6 mm).

In one embodiment, the diameter of the positioning tubule 3 is 1-1.5mm, and the positioning tubule 3 is more slim, so that the positioning end 32 of the positioning tubule 3 can be conveniently inserted into the eye for operation.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A positioning device is characterized by comprising,

a handle;

an elastic pouring tube arranged in the handle;

2. The positioning device of claim 1 wherein said throttling assembly comprises:

the sliding block is arranged on the handle in a sliding manner;

the extrusion block is arranged in the handle, connected with the sliding block and used for sliding and extruding the pipe wall of the elastic pouring pipe.

3. The positioning device according to claim 2, wherein the handle is provided with a sliding groove along the length direction thereof, the sliding block is arranged in the sliding groove in a matching manner, and the sliding block is arranged in a sliding manner along the length direction of the sliding groove.

4. A positioning device according to claim 3, wherein a stopper is provided in the handle, a communication area with gradually decreasing gap is formed between the stopper and the pressing block, and the elastic filling tube is inserted between the pressing block and the stopper.

5. The positioning device according to claim 4, wherein said stopper is provided in said handle so as to incline toward said positioning tubule.

6. The positioning device according to claim 1, wherein the positioning tubule is provided with a positioning end and a mounting end, the mounting end is elastically sleeved on the handle, and the positioning end is provided with a pouring hole.

7. The positioning device according to claim 6, wherein the positioning end of the positioning tubule is bent with the mounting end, and the bending angle between the positioning end of the positioning tubule and the mounting end is 120 ° -150 °.

8. The positioning device according to claim 7, wherein the end of the positioning tubule is arranged in a convex arc shape in a bending direction, and the end of the positioning tubule is provided with a hemispherical protrusion in a direction away from the bending direction.

9. The positioning device according to claim 6, wherein the filling holes are symmetrically arranged on both sides of the positioning end of the positioning tubule.

10. The positioning device of claim 6, wherein the positioning tubule has a cross-section of a flattened oval shape.