CN212140720U

CN212140720U - Conjunctival sac drainage aqueous humor micro-irrigation device for treating severe xerophthalmia

Info

Publication number: CN212140720U
Application number: CN202020159288.8U
Authority: CN
Inventors: 高莹莹; 李庆民; 李秀兰; 杨缘玲; 郑玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-10
Filing date: 2020-02-10
Publication date: 2020-12-15
Anticipated expiration: 2030-02-10

Abstract

The utility model relates to a conjunctival sac drainage aqueous humor micro-irrigation device for treating severe xerophthalmia, including the drainage dish, locate drainage dish on draw the fluid, connect respectively in the first drainage tube and the second drainage tube that draw the fluid, draw and be equipped with inlet and liquid outlet on the fluid respectively, be equipped with the syntropy cabin base on the drainage dish, be equipped with an end cap on the syntropy cabin base, but the relative inlet motion of end cap is in order to open or close the inlet, the second drainage tube is connected in the baffle, be equipped with at least one irrigation mouth on the baffle. The utility model discloses a device is implanted and is buried operation mode in ocular surface conjunctival sac feasible, and aseptic aqueous humor can play moist effect to the ocular surface under reasonable automatic control, need not to carry, manual use, and the aqueous humor is clean aseptic, and the cycle time is short, and the source is sufficient, has solved not to have a device to implant eyes and has carried out the technical problem of treatment to severe xerophthalmia effectively conscientiously.

Description

Conjunctival sac drainage aqueous humor micro-irrigation device for treating severe xerophthalmia

Technical Field

The utility model relates to a medicine technical field especially relates to a conjunctival sac drainage aqueous humor micro-irrigation device for treating severe xerophthalmia.

Background

The cavity between the back of the cornea and the iris and the crystalline lens is called as an anterior chamber, the depth of the anterior chamber is about 2.5 mm-3.0 mm, the anterior chamber is filled with clear and transparent aqueous humor, the total amount of the aqueous humor is about 0.25-0.3 ml from blood plasma in capillary network of the ciliary process, the generation rate is about 1.80-4.30 mu L/min, and the main component of the aqueous humor is water. In addition, the protein, electrolyte, lactic acid and glucose have the characteristics of stable physicochemical properties, high updating circulation speed, cleanness, sterility and the like, and are continuously generated and updated about once every 50 minutes.

The current clinical non-drug treatment strategies for dry eye include mainly the following: firstly, carrying out physical therapy such as massage, hot compress and the like on eyes; increasing local humidity of eyes, and applying therapeutic corneal contact lenses such as wet room lenses and the like; improving the eye environment, such as feasible punctum embolization, and prolonging the stay time on the ocular surface. The dry eye drug treatment strategy mainly comprises an artificial drug, an anti-inflammatory drug, autologous serum, amniotic membrane extract, other drugs (such as androgen and Chinese herbal medicines) and the like, and the drugs are independently or jointly used according to different dry eye types and disease development conditions. For patients who are not drug-therapeutically effective, surgical treatment is usually undertaken. Eyelid suturing may be used, particularly for severe dry eye patients without other alternatives; for patients who are unresponsive to conventional therapy and may become blind, a labial or submandibular gland transplant may be used.

There are many limitations to current treatment regimens for severe dry eye patients: (1) the conventional physical means and the wearing of the therapeutic corneal contact lens have little effect, and the condition of the patient cannot be effectively improved; (2) in the drug treatment, the curative effects of different brands of artificial eye drops have larger individual difference, patients need to carry with them for frequent use, and the storage conditions of some eye drops are harsh, which brings inconvenience to treatment and use; (3) the autologous serum has a good effect on severe xerophthalmia, but has a short service period, a complex and tedious process and limited raw material sources, and is required to be refrigerated for storage and cannot be carried about for use; (4) the eyelid suture operation and the lip gland or submaxillary gland transplantation operation which are performed when the conventional treatment is ineffective have complex operation modes and relatively limited clinical curative effect, are easy to cause psychological and economic burdens of patients, are not easy to accept by the patients and are difficult to apply and popularize. Currently, there is no device implanted in the eye that is effective in treating severe dry eye.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above-mentioned problem, the utility model provides a conjunctival sac drainage aqueous humor micro-irrigation device for treating severe xerophthalmia. It solves the technical problem that the severe xerophthalmia is treated effectively without a device implanted into eyes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a conjunctival sac drainage aqueous humor micro-irrigation device for treating severe xerophthalmia, includes drainage dish, locates drainage fluid on the drainage dish, connects respectively in drainage fluid's first drainage tube and second drainage tube, drainage dish with draw and form an inclosed water conservancy diversion chamber between the fluid, draw and be equipped with the inlet and the liquid outlet of intercommunication water conservancy diversion chamber on the fluid respectively, first drainage tube turn-on connect in the inlet, second drainage tube turn-on connect in the liquid outlet, lie in the water conservancy diversion intracavity on the drainage dish and be equipped with the syntropy cabin base, be equipped with a end cap on the syntropy cabin base, the end cap can move in order to open or close the inlet relative to the inlet, the second drainage tube is connected in the fluid conservancy diversion, be equipped with at least one irrigation mouth on the fluid conservancy diversion.

Further:

the reversing cabin base is provided with a reversing cavity, the opening of the reversing cavity faces the liquid inlet, the plug can slide in the reversing cavity, and an elastic device is arranged in the reversing cavity on the reversing cabin base and connected with the plug.

The elastic device is a pressure spring.

The plug is telescopic elastic silica gel, plug one end is fixed in to the chamber base that reverses, the plug other end can lean on to seal in the inlet.

The top of the reversing cabin base is fixedly and hermetically connected with the drainage body, two drainage channels are formed between two sides of the reversing cabin base and the drainage body, the two drainage channels are in conduction connection with the liquid collecting cabin, the liquid collecting cabin is triangular, and the liquid collecting cabin is communicated with the liquid outlet.

And a first one-way valve is arranged on each drainage channel.

The drainage disc is provided with at least one suture hole.

The flow guide body is in an ultrathin micro-arch shape.

And at least one second one-way valve is arranged on the liquid outlet.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the utility model discloses get into the anterior chamber with first drainage tube under the conjunctival sac, the other end links to each other with the drainage body, the drainage body is sewed up through the drainage dish and is fixed in the sclera, the embedding is in the conjunctival sac, aqueous humor gets into the inlet through first drainage tube, the elastic device that the end cap on the inlet is connected presets certain elasticity numerical value, set up to 11mmHg ~ 13mmHg usually, when aqueous humor pressure is less than and sets for numerical value, the end cap supports and leans on and seals the inlet, prevent aqueous humor inflow, prevent that intraocular pressure is low, when aqueous humor pressure exceedes and sets for numerical value, aqueous humor promotes the end cap and removes, make the inlet open, get into in the drainage body, get into the second drainage tube from the liquid outlet again, flow out from the irrigation mouth of baffle, flow into; furthermore, the plug is pushed to move through an elastic device, and the elastic device is arranged; furthermore, the plug is elastic silica gel which can be stretched, aqueous humor pushes the plug to stretch, the higher the intraocular pressure of the aqueous humor is, the larger the plug is compressed, when the aqueous humor pressure exceeds a set value, the elastic silica gel is compressed, the liquid inlet is opened, and the aqueous humor flows into the drainage body, so that the structure is simple and practical; furthermore, after entering the drainage fluid, the drainage fluid flows into the liquid collecting cabin from the drainage channels on the two sides respectively, and the two walls on the inner side of the liquid collecting cabin adopt the bevel edge design, so that the drainage fluid is favorable for flowing from the liquid collecting cabin to the liquid outlet and is prevented from remaining at the liquid outlet; further, the drainage disk can be fixed on the sclera through the suture hole; furthermore, the flow guide body is in an ultrathin and micro-arched shape, so that the situation that the irrigation opening is blocked by self tissue scarring can be avoided, the flow guide direction of the irrigation opening is along a plurality of angles, the coverage area flowing out of the irrigation opening is large, the flow guide body is favorable for flowing to the outer surface of an eyeball, and the range of moistening the conjunctiva and the cornea is enlarged; the arrangement of the first one-way valve and the second one-way valve can ensure the liquid flow direction, aqueous humor can only flow to the conjunctival sac from eyes in one way, and the polluted liquid on the surface of the eyes is prevented from flowing back to eyes. The device of this patent design is implanted and is buried in the ocular surface conjunctival sac, aseptic aqueous humor can drain to the ocular surface and play moist effect under reasonable automatic control, its effect is better than conventional manual work, need not to carry, manual use, and the aqueous humor is clean aseptic, carry human profitable electrolyte of self, composition such as cytokine, it renews the cycle time weak point, the source is sufficient, to severe xerophthalmia, threaten the healthy patient of ocular surface and can accept, the device is feasible in the implantation operation mode of ocular surface, after carrying out animal experiment and clinical trial and prove its feasibility and security, can be applied to the severe xerophthalmia patient that other methods are difficult to effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic cross-sectional structural view of a fluid-guiding body according to an embodiment;

FIG. 3 is a schematic structural diagram of another state of the first embodiment;

FIG. 4 is a schematic cross-sectional structural view of a second fluid introduction device according to the embodiment;

FIG. 5 is a schematic view of another state structural formula of example two;

fig. 6 is a sectional structural view of the flow guide body.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

The first embodiment is as follows:

referring to fig. 1, fig. 2, fig. 3 and fig. 6, this embodiment provides a conjunctival sac drainage aqueous humor micro-irrigation device for treating severe dry eye, which includes a drainage tray 1, a drainage fluid 2 disposed on the drainage tray 1, a first drainage tube 3 and a second drainage tube 4 connected to the drainage fluid 2, two suture holes 11 are disposed on the drainage tray 1, a closed drainage cavity 23 is formed between the drainage tray 1 and the drainage fluid 2, a fluid inlet 21 and a fluid outlet 22 are disposed on the drainage fluid 2, the first drainage tube 3 is connected to the fluid inlet 21, the second drainage tube 4 is connected to the fluid outlet 22, a second check valve 221 is disposed on the fluid outlet 22, a multidirectional chamber base 26 is disposed on the drainage tray 1, a multidirectional chamber 261 is disposed on the multidirectional chamber base 26, an opening of the multidirectional chamber 261 faces the fluid inlet 21, a guide rail 262 is disposed in the multidirectional chamber 261, a plug 6 is disposed in the multidirectional chamber 261, the plug 6 can slide along the guide rail 262 to open or close the liquid inlet 21, an elastic device is arranged in the reversing cavity 261 on the reversing cabin base 26, the elastic device is a pressure spring 61 and is connected with the plug 6, the outer wall of the plug 6 is in sealed connection with the inner wall of the reversing cavity 261, and the pressure spring 61 applies elastic acting force to the plug 6 to abut against and seal the liquid inlet 21; the top of the backward cabin base 26 is fixedly and hermetically connected with the drainage body 2, two drainage channels 24 are formed between two sides of the backward cabin base 26 and the drainage body 2, each drainage channel 24 is provided with a first one-way valve 241, the two drainage channels 24 are in conduction connection with the liquid collecting cabin 25, the liquid collecting cabin 25 is triangular, and the liquid collecting cabin 25 is in conduction with the liquid outlet 22; the second drainage tube 4 is connected with the flow guide body 5, the flow guide body 5 is in an ultrathin micro-arch shape and is matched with the shape of an eyeball, and five irrigation openings 51 are formed in the flow guide body 5.

One end of the first drainage tube 3 is in a shape of an oblique tip and enters the anterior chamber under the conjunctival sac, so that the water inlet area can be increased.

The number of the irrigation openings 51 can be one, two, three or even more, according to the situation.

Above-mentioned suture hole 11 can be one, two, three or more, and the quantity of suturing hole 11 usually is two, and the effect that plays fixed that can be fine, two suture holes 11 are located and are close to first drainage tube 3 one side usually, make things convenient for going on of operation, if locate to be close to second drainage tube 4 one side with suture hole 11, the operation degree of difficulty is great, specifically sets up as the circumstances.

The liquid inlet direction of the first drainage tube 3 and the liquid outlet direction of the second drainage tube 4 are generally 90 degrees, liquid is drained from the side, irrigation is performed from the fornix part above the temples, and eyeball irrigation is facilitated, so that the second drainage tube 4 can be set into a drainage tube bent by 90 degrees, the liquid outlet direction of the second drainage tube 4 has 180-degree difference between the left eye and the right eye, and the liquid inlet direction of the first drainage tube 3 and the liquid outlet direction of the second drainage tube 4 can be set at other angles according to conditions.

The length of the first draft tube 3 is usually 15mm, the length of the draft tray 1 is usually 15mm, the width of the draft tray 1 is usually 12mm, the total length of the second draft tube 4 is usually 12mm, wherein the length of the second draft tube 4 in the length direction is 2mm, the length in the width direction is 10mm, and the length of the first draft tube 3, the length and the width of the draft tray 1, and the total length of the second draft tube 4 may be other values, as the case may be.

The first check valve 241 may not be provided in the drainage duct 24, and may be provided as the case may be.

The pressure spring 61 can be made of memory type biological material with excellent stretching property, such as silica gel, which is a well-known material and will not be described herein again, and the elastic force of the pressure spring 61 is set as required to push the stopper 6 to move when the aqueous humor pressure exceeds 11mmHg to 13mmHg, so as to open the fluid inlet 21.

The elasticity value is set according to the condition of a user, is usually 11mmHg to 13mmHg, can be regulated and controlled in a small range according to the actual average intraocular pressure of the user, and has the effects of trace quantity, continuity, slowness and safety.

The top of the above-mentioned reversing bilge 26 may or may not be hermetically connected with the drainage body 2, and this kind of structure, the liquid in the drainage body 2 flows in the whole diversion cavity 23, which easily causes the liquid to flow in a disordered manner, and may cause the time for which a part of the liquid stays in the diversion cavity 23 to be too long, which is not favorable for the treatment of xerophthalmia.

The utility model discloses draw fluid 2, drainage dish 1, end cap, compound bilge seat 26, baffle 5 can adopt silica gel material, for well-known material, no longer describe herein.

The first drainage tube 3 and the second drainage tube 4 can be made of silica gel, hydrogel or polymethyl methacrylate material with good biocompatibility.

The guide rail 262 can be made of polymethyl methacrylate material, the polymethyl methacrylate is not easy to biodegrade and has better biocompatibility, and the guide rail 262 can keep the stability of the linear motion of the plug 6 after the plug reciprocates for many times.

The first check valve 241 and the second check valve 221 are well known, and refer to patent application nos.: CN 201821594264.4, similar to the one-way check valve mentioned in the patent, and will not be described in detail herein.

The working mode of the first embodiment is as follows:

through an operation, the inclined tip of the first drainage tube 3 enters the anterior chamber under the conjunctival sac, the other end of the first drainage tube is connected with the drainage body 2, the drainage body 2 is fixed on a sclera by a drainage disc 1 in a sewing mode and is embedded in the conjunctival sac, aqueous humor enters the liquid inlet 21 through the first drainage tube 3, when the pressure of the aqueous humor in the anterior chamber is lower than the preset elastic force value of a pressure spring 61, the pressure is usually set to be 11 mmHg-13 mmHg, a plug 6 abuts against a sealed liquid inlet 21 to prevent liquid from flowing in, when the pressure of the aqueous humor exceeds the preset value, the plug 6 is pushed to move, so that the liquid inlet 21 is opened, the aqueous humor enters the drainage body 2, then enters the second drainage tube 4 from the liquid outlet 22, flows out of a plurality of irrigation holes 51 of the drainage body 5; the sterile aqueous humor of the device designed by the patent can be drained to the ocular surface under reasonable automatic control to play a role of moistening, the effect is better than that of conventional manual work, the carrying and the manual use are not needed, the aqueous humor is clean and sterile, the updating cycle time is short, the source is sufficient, the device is also simpler in the implantation operation mode of the ocular surface, and the patient can accept easily.

Example two:

referring to fig. 1 to 6, the second embodiment is different from the first embodiment in that: in the second embodiment, the plug 7 is made of elastic silica gel, one end of the plug 7 is fixed to the reversing cabin base 26, and the other end of the plug 7 is elastically abutted to the liquid inlet 21. End cap 7 is telescopic elastic silica gel, and the aqueous humor promotes end cap 7 to stretch out and draw back, and aqueous humor pressure is higher, and end cap 7 compression is big more, and when aqueous humor pressure exceeded when setting for numerical value, elastic silica gel compression, inlet 21 were opened for the aqueous humor flows into in the drainage body 2, this kind of simple structure is practical. In the second embodiment, the guide seats 71 may be disposed on two sides of the plug 7, so that the plug 7 can perform a telescopic motion along a straight line.

In the second embodiment, the guide seat 71 may be made of a silica gel material or a polymethyl methacrylate material, and the guide seat 71 may enable the plug 7 to keep the stability of the linear motion of the plug 7 after a plurality of reciprocating motions.

In the second embodiment, a first one-way valve may also be provided in the drain 24.

The number of the second check valves 221 of the liquid outlet 22 may be two, three or more, and usually one or two second check valves are provided, so that the effect of preventing the liquid from flowing backwards can be achieved, and the liquid outlet is simple and practical.

Also can set up the check valve on above-mentioned inlet 21, also can set up the check valve in other aqueous humor process departments in the device, and specific setting according to the condition for the aqueous humor can only one-wayly flow to the conjunctival sac from the intraocular, can prevent effectively that conjunctival sac liquid from flowing back to the intraocular.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a conjunctival sac drainage aqueous humor micro-irrigation device for treating severe xerophthalmia which characterized in that: including drainage dish, locate drainage fluid on the drainage dish, connect respectively in the first drainage tube and the second drainage tube of drainage fluid, the drainage dish with form an inclosed water conservancy diversion chamber between the drainage fluid, be equipped with the inlet and the liquid outlet of intercommunication water conservancy diversion chamber on the drainage fluid respectively, first drainage tube turn-on connection in the inlet, second drainage tube turn-on connection in the liquid outlet, lie in on the drainage dish and lead the intracavity and be equipped with the chamber base that reverses, be equipped with a plug on the chamber base that reverses, the plug can move in order to open or close the inlet relative to the inlet, the second drainage tube is connected in the flow guide, be equipped with at least one irrigation mouth on the flow guide.

2. The conjunctival sac drainage aqueous micro-irrigation device for treating severe dry eye according to claim 1, wherein the conjunctival sac drainage aqueous micro-irrigation device comprises: the reversing cabin base is provided with a reversing cavity, the opening of the reversing cavity faces the liquid inlet, the plug can slide in the reversing cavity, and an elastic device is arranged in the reversing cavity on the reversing cabin base and connected with the plug.

3. The conjunctival sac drainage aqueous micro-irrigation device for treating severe dry eye according to claim 2, wherein: the elastic device is a pressure spring.

4. The conjunctival sac drainage aqueous micro-irrigation device for treating severe dry eye according to claim 1, wherein the conjunctival sac drainage aqueous micro-irrigation device comprises: the plug is telescopic elastic silica gel, plug one end is fixed in to the chamber base that reverses, the plug other end can lean on to seal in the inlet.

5. A conjunctival sac drainage aqueous micro-irrigation device for treatment of severe dry eye according to any one of claims 1 to 4, characterized in that: the top of the reversing cabin base is fixedly and hermetically connected with the drainage body, two drainage channels are formed between two sides of the reversing cabin base and the drainage body, the two drainage channels are in conduction connection with the liquid collecting cabin, the liquid collecting cabin is triangular, and the liquid collecting cabin is communicated with the liquid outlet.

6. The conjunctival sac drainage aqueous micro-irrigation device for treating severe dry eye according to claim 5, wherein: and a first one-way valve is arranged on each drainage channel.

7. The conjunctival sac drainage aqueous micro-irrigation device for treating severe dry eye according to claim 1, wherein the conjunctival sac drainage aqueous micro-irrigation device comprises: the drainage disc is provided with at least one suture hole.

8. The conjunctival sac drainage aqueous micro-irrigation device for treating severe dry eye according to claim 1, wherein the conjunctival sac drainage aqueous micro-irrigation device comprises: the flow guide body is in an ultrathin micro-arch shape.

9. The conjunctival sac drainage aqueous micro-irrigation device for treating severe dry eye according to claim 1, wherein the conjunctival sac drainage aqueous micro-irrigation device comprises: and at least one second one-way valve is arranged on the liquid outlet.