CN203829372U

CN203829372U - Fenestration and drainage negative pressure blockage device for jaw cystic lesion

Info

Publication number: CN203829372U
Application number: CN201420010439.8U
Authority: CN
Inventors: 曲行舟; 王明一
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2014-01-08
Filing date: 2014-01-08
Publication date: 2014-09-17
Anticipated expiration: 2024-01-08

Abstract

The utility model discloses a fenestration and drainage negative pressure blockage device for the jaw cystic lesion. The blockage device comprises a blockage apparatus and a fixing clamping ring. A miniature one-way valve is arranged in the blockage apparatus, and the opening pressure of the miniature one-way valve is smaller than 20 mbar. The blockage device has the advantages that the drainage mode of an original blockage apparatus is changed through the blockage device, and a patient does not need to put on or take off the blockage apparatus for drainage repeatedly every day. Meanwhile, low pressure lower than normal oral pressure can be formed in a cyst just through suction, and the valve can be repeatedly opened. Intracystic negative pressure suction can be completed just through simple sucking action and the pressure lower than the atmospheric pressure is frequently formed in the cyst, so that decrease of the size of the cystic lesion and osteogenesis are promoted, and the course of treatment is shortened.

Description

The Maxillary Cystic Disease drain negative pressure blocking device of windowing

Technical field

This utility model relates to medical instruments field, more particularly, relates to the Maxillary Cystic Disease drain negative pressure blocking device of windowing.

Background technology

For upper and lower Maxillary Cystic Disease, adopt the drainage method of windowing, the airtight cystic lesion of script is communicated with oral cavity, thereby removed the pressure constantly increasing in capsule, intraluminal pressure and mouth pressure are equal to.When osseous tissue is no longer subject to cyst pressure-acting, its osteoblast is active, and cyst is dwindled gradually, even disappears, thereby has reduced the wound of second operation and can retain to greatest extent the vitals such as tooth, nerve.

After cyst windowing, because the opening of needs long term maintenance windowing is in order to drain, and prevent that food from falling into blister cavities, often need windowing to carry out wearing of obturator.Traditional approach is one week after surgery, windowing is carried out to die, make the obturator consistent with windowing form, and utilize snap ring to carry out maintenance on the other tooth of contiguous windowing, anchor ring mostly is RPI card (try out in windowing and be arranged in abutment free-end far away).Cyst is windowed after obturator wears, and needs repeatedly pluck every day and wears, rinses.Regularly check, X-ray is compared, and closely follows up a case by regular visits to the variation of cystic lesion.

The principle of this technology is just the variation (reducing) of cystic lesion internal pressure, and the active osteoblast that changes into of osteoclast that cystic lesion osseous tissue is around caused by compressing enlivens, thereby reaches therapeutic purposes.There are some researches show, continue to reduce intraluminal pressure and make it lower than atmospheric pressure, can accelerate osteogenetic process.But at present, still there is no a kind of obturator that can stably maintain negative pressure.

Cystic lesion windowing, its windowing comes in every shape, and obturator need to carry out personalized die customization.In order to maintain the stable form of windowing, obturator form and windowing form are consistent, so just can total blockage windowing, and also can stop food to fall in capsule completely.But, block and be unfavorable for that again the secretions in capsule carries out drain completely, also there is the risk that increases intraluminal pressure.Therefore, usually advise that patient every day, plucking repeatedly worn the object that obturator reaches timely drain.Also there is scholar to punch on obturator or connect latex tubing, and with syringe, carrying out Aspiration capsule liquid and reach instantaneous negative pressure.But along with the continuous generation of capsule liquid, negative pressure state is held time shortlyer in its capsule, operate relatively loaded down with trivial detailsly, and the course for the treatment of, shortening was not obvious.

Utility model content

Technical problem to be solved in the utility model is, provide a kind of can total blockage windowing, drain and can frequently produce in capsule hypobaric Maxillary Cystic Disease drain negative pressure blocking device of windowing under normal physiology of oral cavity functional status freely again.

Second technical problem to be solved in the utility model be, the preparation method that provides Maxillary Cystic Disease to window drain negative pressure blocking device.

In order to solve above-mentioned first technical problem, this utility model provides the Maxillary Cystic Disease drain negative pressure blocking device of windowing, and comprises obturator and anchor ring, it is characterized in that, micro one-way valve is set in obturator, and the opening pressure of described micro one-way valve is less than 20mbar.

As a preferred version, the opening pressure of described micro one-way valve is 6-15 mbar.

The utility model has the advantage of, this utility model blocking device has changed the drainage way of original obturator, without repeatedly plucking every day to wear, carries out drain.Meanwhile, utilize and suck and can, to forming the low-pressure state lower than normal mouth pressure in capsule, can make valve repeatedly open.Simple sucking action can complete vacuum suction in capsule, in capsule, again and again forms lower than atmospheric pressure state, is conducive to dwindling of cystic lesion, is also beneficial to skeletonization, Shorten the Treatment Process.

Accompanying drawing explanation

Fig. 1 is the window generalized section of drain negative pressure blocking device of Maxillary Cystic Disease.

Fig. 2 is the window using state reference diagram of drain negative pressure blocking device of Maxillary Cystic Disease.

Number in the figure is expressed as:

1---obturator; 2---anchor ring; 3---micro one-way valve.

The specific embodiment

Below in conjunction with specific embodiment, further set forth this utility model.In following embodiment, material used, reagent etc., if no special instructions, all can obtain from commercial channels.Should be understood that these embodiment are only not used in restriction scope of the present utility model for this utility model is described.

The embodiment 1. Maxillary Cystic Diseases drain negative pressure blocking device of windowing

As shown in Figure 1, comprise obturator 1 and anchor ring 2, at the interior micro one-way valve 3 that arranges of obturator 1, the opening pressure of micro one-way valve 3 is less than 20mbar.

Fig. 2 is the window using state reference diagram of drain negative pressure blocking device of Maxillary Cystic Disease, and a little check valve sheet in micro one-way valve valve can guarantee that fluid only flows to a direction.It is 9.8-14.7mbar that pressure differential while sucking function is exercised in oral cavity, firmly sucks just fully Open valve, and when intraluminal pressure is greater than 20mbar, capsule liquid also will overflow automatically.The opening pressure of micro one-way valve is preferably 6-15 mbar.Meanwhile, every day, normal intraoral pressure variation can make valve repeatedly open, and simple sucking action can complete vacuum suction in capsule, and in capsule, frequent formation is lower than atmospheric pressure state.

The embodiment 2. Maxillary Cystic Diseases drain negative pressure blocking device preparation method of windowing

(1) accurate impression technique, makes obturator mate with cyst windowing form, can tightly seal windowing.Design obturator anchor ring, mostly is RPI card (try out in windowing and be arranged in abutment free-end far away).

(2) it is one-body molded that the micro one-way valve that opening pressure is less than to 20mbar is placed in obturator die, and two ports of micro one-way valve are in communication with the outside.

The impression technique of step (1) obturator and design anchor ring are routine techniques, and innovative point of the present utility model is just when die, to add micro one-way valve, and two ports of micro one-way valve are in communication with the outside.Micro one-way valve can be selected commercially available prod, as long as meet opening pressure, is less than 20mbar, is preferably 6-15 mbar, and volume is applicable to obturator.The present embodiment is selected to obtain the F2804 micro one-way valve sold of thunder fluid Control Engineering company limited.

The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. the Maxillary Cystic Disease drain negative pressure blocking device of windowing, comprises obturator and anchor ring, it is characterized in that, micro one-way valve is set in obturator, and the opening pressure of described micro one-way valve is less than 20mbar.

2. the Maxillary Cystic Disease according to claim 1 drain negative pressure blocking device of windowing, is characterized in that, the opening pressure of described micro one-way valve is 6-15 mbar.