CN208893494U - A kind of novel optical dynamic therapy outer sheath - Google Patents

Abstract

A kind of novel optical dynamic therapy outer sheath, including front end sheath and rear end sheath, front end sheath are flexibly connected with rear end sheath；Scattering tube is equipped with inside the front end sheath, scattering tube side wall includes multiple concavees lens；The front end of front end sheath is equipped with developing head, and the tail end of front end sheath is equipped with the first external screw thread；Pipeline is equipped with inside the sheath of rear end, the front inner wall of rear end sheath is equipped with the first internal screw thread, and the rear end outer wall of rear end sheath is equipped with limit plate, and the rear end of the rear end sheath is equipped with elastic fixing sleeve, the elastic fixing sleeve inner wall is equipped with anti-slop serrations, and elastic fixing sleeve outer wall is equipped with elastic bands.The utility model can select suitable front end sheath according to the lumen size of tumor region, improve the applicability of the outer sheath, the scattering tube for being equipped with multiple concavees lens simultaneously strengthens the light intensity and scattering area of optical fiber luminescent body, elastic fixing sleeve strengthens stability of the optical fiber cable in outer sheath, guarantees reach preferable therapeutic effect in the tumor tissues of various positions.

Description

A kind of novel optical dynamic therapy outer sheath

Technical field

The utility model belongs to clinical treatment machinery field, and in particular to a kind of novel optical dynamic therapy outer sheath.

Background technique

Photodynamic therapy is with the particular advantages of its selective killing, it has also become treat certain precancerous lesions prefered method it One.It has very strong specific aim and good operability, is also easy to avoid the excessive damage to place organ-tissue.It is domestic Outer clinical research is it was verified that precancerous lesion such as esophagus squameous epithelial dysplasia or Barrett in treatment oesophagus are eaten Pipe changes, and treats the atypical hyperplasia of tunica mucosa bronchiorum epithelium, treats the migratory cell atypical hyperplasia of vesical mucosa epithelium, light Dynamic therapy can substantially reduce the incidence of canceration, become a kind of effective ways that active prevention cancer occurs.

Photodynamic therapy is cold chemical reaction, and inorganization fever will not destroy connective tissue such as collagen, elastic fibers, because This can damage the integrality of basic structure unlike thermal laser or operation.Laser irradiation in optical dynamic therapy Purpose is in order to which exciting light allergic drug generates photochemical reaction, and laser energy is not high, generally within 5 watts, not will cause photograph The obvious heating for penetrating area, less will cause the thermal damage of tissue.And common laser surgey, general energy tens watts even on Hectowatt, using high energy laser beam generate localized hyperthermia, to cut, vaporize or solidify pathological tissues, thus photodynamic therapy with Traditional laser surgey has the difference of essence, and light power is a kind of photochemically-induced biological chemistry action process, and laser hand Art is a kind of simple physical action process.

Clinically still lack the auxiliary outer sheath of optical dynamic therapy at present, and use the method for being directly placed in optical fiber easy by The limitation of lumen size, in addition to there are the risks such as fracture, crimp, optical fiber luminescent body is also easy by the tissue fluid or penetrating fluid in lumen Cover, influence the effect of optical dynamic therapy, at the same optical dynamic therapy effect also with exposure dose (irradiated area/optical density/irradiation Time/irradiation number etc.) it is closely related, therefore the auxiliary outer sheath for designing a kind of novel optical dynamic therapy is necessary.

Utility model content

In view of the deficiencies of the prior art, the purpose of this utility model is that proposing a kind of novel optical dynamic therapy outer sheath, The outer sheath can select suitable front end sheath according to the lumen size of tumor region, improve the applicability of the outer sheath, simultaneously Scattering tube by being equipped with multiple concavees lens strengthens the light intensity and scattering area of optical fiber luminescent body, and passes through elastic fixing sleeve Stability of the optical fiber cable in outer sheath is strengthened, guarantees reach preferable treatment effect in the tumor tissues of various positions Fruit.

To achieve the above object, the technical scheme adopted by the utility model is

A kind of novel optical dynamic therapy outer sheath, the outer sheath include front end sheath and rear end sheath, the front end sheath It is flexibly connected with rear end sheath；

The scattering tube for placing optical fiber luminescent body is equipped with inside the front end sheath, the scattering tube side wall includes multiple Concavees lens；The front end of the front end sheath is equipped with the developing head for being positioned to the outer sheath；The tail of the front end sheath End is equipped with the first external screw thread being connected with rear end sheath；

The pipeline being inserted into for optical fiber cable is equipped with inside the rear end sheath, the front inner wall of rear end sheath is equipped with and front end sheath The rear end outer wall of the first internal screw thread that first external screw thread of pipe matches, rear end sheath is equipped with limit plate, the rear end sheath Rear end is equipped with elastic fixing sleeve, and the elastic fixing sleeve inner wall is equipped with anti-slop serrations, and elastic fixing sleeve outer wall is equipped with elastic bands.

Further, there are many specifications for the front end sheath；It can select to close according to the different lumens of different knub positions The front end sheath of suitable diameter or appropriate length is carried out using guarantee reaches the optimum efficiency of optical dynamic therapy.

Further, multiple concavees lens are evenly arranged in scattering tube；It ensure that the equal of optical fiber luminescent body diverging light intensity Evenness.

Further, the junction of the front end sheath side wall and front-end and back-end is in rounding off；It avoids to swollen Mechanical damage caused by tumor tissue or health tissues.

Further, the inner wall of the elastic fixing sleeve and elastic fixing sleeve rear end junction are in rounding off；It is convenient The insertion of optical fiber cable.

Further, the elastic bands are equipped with velcro；After elastic bands wind elastic fixing sleeve, pass through Velcro is fixed.

Further, the front end sheath and scattering tube are made of the colourless transparent material of high transparency.

The beneficial effects of the utility model are:

(1) the front end sheath in the utility model and rear end sheath are using flexible connection, and there are many rule for front end sheath Lattice can select suitable front end sheath according to the different lumen sizes of the tumour of different location, be met with this to different location Tumour optical dynamic therapy, allow the optical dynamic therapy of different location tumour that can reach preferable effect, have stronger suitable The property used；

(2) the utility model is shone by the laser that multiple concavees lens being evenly arranged in scattering tube strengthen optical fiber luminescent body Intensity is penetrated, the scattering area of laser is expanded, enhances the energy density of laser, so that the efficiency of optical dynamic therapy is enhanced, Preferable optical dynamic therapy effect is reached；

(3) outer sheath that the utility model is proposed can protect optical fiber cable and optical fiber luminescent body, can avoid optical fiber Line occurs bending inside tumour cavity, crimps and lead to situations such as fractureing, and ensure that the security and stability of optical fiber cable, while Secretion, the diffusate etc. that can avoid in tumour lumen cover optical fiber luminescent body, ensure that the photograph of tumor tissues position light Intensity and area are penetrated, therapeutic efficiency is improved；

(4) the utility model strengthens stability of the optical fiber cable inside outer sheath by elastic fixing sleeve, and optical fiber cable is worn Elastic fixing sleeve is crossed, then tenses elastic bands and elastic bands is fixed by velcro and reinforce optical fiber cable in flexible fastening Fixation in set, while the anti-slop serrations of elastic fixing sleeve inner wall strengthen the fixation of optical fiber cable, avoid optical fiber cable in outer sheath There is situations such as rotation, mobile, allows optical fiber luminescent body to stablize at tumor tissues position, ensure that the effect of optical dynamic therapy；

(5) operation that medical staff is facilitated by the setting of limit plate, holds more convenient when the outer sheath is exerted oneself.

Detailed description of the invention

Fig. 1 is the complete structure schematic diagram of the utility model when in use；

Fig. 2 is the structural schematic diagram that the utility model is not inserted into optical fiber cable；

Fig. 3 is the structural schematic diagram of front end sheath；

Fig. 4 is the structural schematic diagram of rear end sheath.

In figure: 1, front end sheath；1-1, scattering tube；1-2, developing head；1-3, the first external screw thread；2, rear end sheath；2-1, Pipeline；3, elastic fixing sleeve；3-1, elastic bands；4, limit plate；5, optical fiber cable；6, optical fiber luminescent body.

Specific embodiment

It is practical new to this with reference to the accompanying drawing in order to keep the purpose of this utility model, technical solution and advantage clearer Type is further elaborated.

In the present embodiment, as shown in Figs 1-4, a kind of novel optical dynamic therapy outer sheath, the outer sheath include front end sheath Pipe 1 and rear end sheath 2, the front end sheath 1 are flexibly connected with rear end sheath 2；It is equipped with inside the front end sheath 1 for placing The scattering tube 1-1 of optical fiber luminescent body 6, the scattering tube 1-1 side wall includes multiple concavees lens；The front end of the front end sheath 1 is set There is the developing head 1-2 for being positioned to the outer sheath；The tail end of the front end sheath 1, which is equipped with, to be connected with rear end sheath 2 First external screw thread 1-3；The pipeline 2-1 being inserted into for optical fiber cable 5, the front inner wall of rear end sheath 2 are equipped with inside the rear end sheath 2 Equipped with the first internal screw thread that the first external screw thread 1-3 with front end sheath 1 matches, the rear end outer wall of rear end sheath 2 is equipped with limit Plate 4, the rear end of the rear end sheath 2 are equipped with elastic fixing sleeve 3, and 3 inner wall of elastic fixing sleeve is equipped with anti-slop serrations, flexible fastening 3 outer walls are covered equipped with elastic bands 3-1.

As a kind of prioritization scheme of the utility model, there are many specifications for the front end sheath 1；It can be according to different tumour positions The different lumens set select the front end sheath 1 of suitable diameter or appropriate length to carry out using guaranteeing in various tumour lumens The optimum efficiency of optical dynamic therapy can be reached.

As a kind of prioritization scheme of the utility model, multiple concavees lens are evenly arranged on scattering tube 1-1；It ensure that light Fine illuminator 6 dissipates the uniformity of light intensity.

As a kind of prioritization scheme of the utility model, the junction of 1 side wall of front end sheath and front-end and back-end is equal In rounding off；Avoid the mechanical damage caused by tumor tissues or health tissues.

As a kind of prioritization scheme of the utility model, the inner wall of the elastic fixing sleeve 3 and 3 rear end of elastic fixing sleeve connect Place is met in rounding off；Facilitate the insertion of optical fiber cable 5.

As a kind of prioritization scheme of the utility model, the elastic bands 3-1 is equipped with velcro；Firmly elastic bands After 3-1 winds elastic fixing sleeve 3, elastic fixing sleeve 3 is shunk, and optical fiber cable 5 is allowed closely to connect with 3 inner wall of elastic fixing sleeve Touching, then fixation is strengthened by velcro.

As a kind of prioritization scheme of the utility model, the front end sheath 1 and scattering tube 1-1 by high transparency nothing Color transparent material is made.

The utility model uses photosensitizer to patient first, after patient has injected photosensitizer again when specifically used 2-48 is waited as a child to carry out laser irradiation；Patient is anaesthetized, then the output work of the output laser of debugging optical fiber line 5 The parameters such as rate, frequency and intensity；Then optical fiber cable 5 is inserted into elastic fixing sleeve 3 and is entered in scattering tube 1-1 by pipeline 2-1 Portion guarantees that optical fiber luminescent body 6 is located at the optimum position inside scattering tube 1-1, then firmly tenses elastic bands 3-1, pass through bullet Property bandage 3-1 winding elastic fixing sleeve 3 allow elastic fixing sleeve 3 tighten so that optical fiber cable 5 closely connects with 3 inner wall of elastic fixing sleeve Touching, then elastic bands 3-1 is fixed by velcro；With the rear portion of hand holding rear end sheath 2, which is placed in The targeted treatment area of tumour, can be by firmly providing convenience to limit plate 4 for the merging of outer sheath in merging, while can lead to The detection to developing head 1-2 is crossed, guarantees that front end sheath 1 is located at the optimum position in tumor target region；Then it is dynamic to start progress light Power treatment；After finishing to optical dynamic therapy, elastic bands 3-1 can be unlocked, is loosened between elastic fixing sleeve 3 and optical fiber cable 5 Connection, optical fiber cable 5 is extracted out, outer sheath is then withdrawn from；

Using the outer sheath carry out optical dynamic therapy before, can by the size of the specific tumor region cavity of patient, Suitable front end sheath 1 is selected to carry out using guaranteeing the effect of optical dynamic therapy.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (7)

1. a kind of novel optical dynamic therapy outer sheath, it is characterised in that: the outer sheath includes front end sheath (1) and rear end sheath (2), the front end sheath (1) is flexibly connected with rear end sheath (2)；

The scattering tube (1-1) for placing optical fiber luminescent body (6), the scattering tube (1-1) are equipped with inside the front end sheath (1) Side wall includes multiple concavees lens；The front end of the front end sheath (1) is equipped with the developing head (1- for being positioned to the outer sheath 2)；The tail end of the front end sheath (1) is equipped with the first external screw thread (1-3) being connected with rear end sheath (2)；

The pipeline (2-1) being inserted into for optical fiber cable (5) is equipped with inside the rear end sheath (2), the front inner wall of rear end sheath (2) is set There is the first internal screw thread to match with the first external screw thread (1-3) of front end sheath (1), the rear end outer wall of rear end sheath (2) is equipped with The rear end of limit plate (4), the rear end sheath (2) is equipped with elastic fixing sleeve (3), and elastic fixing sleeve (3) inner wall is equipped with anti- Slip teeth, elastic fixing sleeve (3) outer wall are equipped with elastic bands (3-1).

2. optical dynamic therapy outer sheath according to claim 1, it is characterised in that: there are many rule for the front end sheath (1) Lattice.

3. optical dynamic therapy outer sheath according to claim 2, it is characterised in that: multiple concavees lens are evenly arranged in scattering It manages on (1-1).

4. optical dynamic therapy outer sheath according to claim 3, it is characterised in that: front end sheath (1) side wall is with before The junction of end and rear end is in rounding off.

5. optical dynamic therapy outer sheath according to claim 4, it is characterised in that: the inner wall of the elastic fixing sleeve (3) It is in rounding off with elastic fixing sleeve (3) rear end junction.

6. optical dynamic therapy outer sheath according to claim 5, it is characterised in that: the elastic bands (3-1) are equipped with Velcro.

7. optical dynamic therapy outer sheath according to claim 6, it is characterised in that: the front end sheath (1) and scattering tube (1-1) is made of the colourless transparent material of high transparency.