CN208464989U - A kind of telescopic optical dynamic therapy outer sheath - Google Patents

Abstract

The utility model discloses a kind of telescopic optical dynamic therapy outer sheaths, including front end outer sheath, intermediate outer sheath and tail end outer sheath, intermediate outer sheath both ends to be flexibly connected respectively with front end outer sheath and tail end outer sheath；The front end of front end outer sheath face spherical in shape, front end side wall are equipped with a circle developing line；Intermediate outer sheath includes multiple telescoping tubes, and the front end of telescoping tube side wall is in arc surface, and the tail end of telescoping tube is embedded in inside another telescoping tube or is flexibly connected with tail end outer sheath；The front end of tail end outer sheath side wall is in arc surface, and tail end face spherical in shape has been evenly arranged multiple optic fibre holes on the spherical.The utility model can protect optical fiber cable and optical fiber luminescent body; increase the exposure intensity and irradiated area of tumor locus light; improve therapeutic efficiency; decrease the damage to health tissues in body; the outer sheath is detachable; replacement is convenient, and the outer sheath can also reach depth, apart from different tumor locus, be widely portable in photodynamic therapy.

Description

A kind of telescopic optical dynamic therapy outer sheath

Technical field

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

Background technique

Photodynamic therapy original claims photoradiation therapy, photochemotherapy, it is to carry out diagnosing tumor using photodynamic reaction to determine A kind of new technology of position and treatment.Photodynamic therapy has pain few, and effect is good, and normal tissue damage is few, can be repeated several times The features such as treatment, can be used as the critical treatment or auxiliary treatment means of various malignant tumours, be widely used in thoracic surgery, breathing Section, Gastroenterology dept., urological department, gynemetrics, dermatology, ENT dept., neurosurgery Deng Ge section malignant tumour Endoscopic Treatment or hand Adjuvant treatment in art.

Optical dynamic therapy process is divided into two steps: photosensitizer is used to patient first, then to swollen after waiting for a period of time Tumor stove position is irradiated.Patient usually requires (2-48 hours) the progress laser photograph afterwards that waits for a period of time after injecting photosensitizer It penetrates.This is because photosensitizer, after tissue metabolism after a period of time, photosensitizer concentration of the retention in pathological tissues is still kept In higher level, and the photosensitizer concentration in surrounding normal tissue is reduced to low-level.At this moment existed using the laser of specific wavelength In vitro or tumour/pathological tissues position is irradiated by endoscope path way using optical fiber, retention at this time is in tumour/lesion group Photosensitizer in knitting will generate photochemical reaction, kill pathological tissues cell, and absolutely not influence on the normal tissue on periphery. This opportunity illumination is selected, not only can effectively kill pathological tissues, but also the damage to surrounding normal tissue can be reduced, is obtained optimal Selective killing effect.

There are various problems when however, clinically carrying out optical dynamic therapy at present: (1) being in centrality in lumen when tumour When growth, lumen is easily narrow, and when optical fiber is directly placed in, the risk that fractures significantly increases.(2) since outer hoop tension is smaller, optical fiber It easily bends when across tumour, disk turns, it is difficult to which accurate positionin is placed in required therapentic part.(3) mucosal tissue or tumour During optical dynamic therapy, exudate, sludged blood etc. can be constantly secreted, not the auxiliary of sheath, these exudates or blood It will be directly overlying on optical fiber luminescent body, weaken the penetration into tissue of laser, significantly reduces photodynamic therapeutic efficacy.(4) tumour has There is individual specificity, growth distribution position is also different, such as the carcinoma of the rectum, carcinoma of sigmoid, colon cancer, the tumour of different distance Need the sheath of different length.

Utility model content

In view of the deficiencies of the prior art, the purpose of this utility model is that proposing a kind of telescopic optical dynamic therapy epitheca Pipe can not only protect optical fiber cable and optical fiber luminescent body when carrying out optical dynamic therapy using the outer sheath, avoid tissue point Secretion covers optical fiber cable, increases the exposure intensity and irradiated area of tumor locus light, improves therapeutic efficiency, decreases pair The damage of health tissues in body, and the outer sheath can also reach depth, apart from different tumor locus, be widely portable to In photodynamic therapy.

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

A kind of telescopic optical dynamic therapy outer sheath, the outer sheath successively include front end outer sheath, intermediate outer sheath and tail Outer sheath is held, the intermediate outer sheath both ends are flexibly connected with front end outer sheath and tail end outer sheath respectively；

The front end face spherical in shape of the front end outer sheath, front end side wall are equipped with a circle developing line；

The intermediate outer sheath includes multiple telescoping tubes, and the front end of the telescoping tube side wall is in arc surface, telescoping tube Tail end is embedded in inside another telescoping tube or is flexibly connected with tail end outer sheath；

The front end of the tail end outer sheath side wall is in arc surface, and tail end face spherical in shape has been evenly arranged on the spherical Multiple optic fibre holes for optical fiber cable insertion.

Further, the tail end outer sheath tail end side wall is equipped with handle, the handle side wall is equipped with anti-skid chequer；Pass through Handle facilitates the holding of the device, and anti-skid chequer ensure that hand-held stability.

Further, the front end outer sheath tail end outer wall is equipped with the first external screw thread.

Further, the intermediate outer sheath front inner wall is equipped with the first internal screw thread to match with the first external screw thread, Rear end outer wall is equipped with the second external screw thread.

Further, the front inner wall of the tail end outer sheath is equipped with spiral shell in second to match with the second external screw thread Line.

Further, optical fiber thread end is equipped with optical fiber luminescent body, the optical fiber luminescent body is located inside the outer sheath of front end.

Further, the front end outer sheath, intermediate outer sheath and tail end outer sheath are PVC transparent hose.

The beneficial effects of the utility model are:

(1) when carrying out optical dynamic therapy using the outer sheath, stable lumen can be formed, to optical fiber cable and optical fiber luminescent body into Row protection, avoids optical fiber luminescent body from being covered during optical dynamic therapy by secretion, diffusate etc., secretion etc. is avoided to slacken The transmitted intensity of laser increases the exposure intensity and irradiated area of tumor locus light, improves therapeutic efficiency；The epitheca simultaneously Pipe also plays a part of positioning and guiding, can prevent optical fiber cable from occurring situations such as bending, disk turn, fracture in the body；

(2) front end of front end outer sheath face spherical in shape, the front end of the telescoping tube side wall are in arc surface, tail end outer sheath The front end of side wall is in that arc surface greatly reduces outer sheath to inside of human body when carrying out optical dynamic therapy using the outer sheath Mechanical injuries caused by tissue；

(3) three parts of the outer sheath use removable connection, can be selected according to the specific location of tumor locus intermediate outer The number of the telescoping tube of sheath, and intermediate outer sheath can stretch, further satisfaction is to deeper farther tumor locus Optical dynamic therapy, solve that tumor locus is too deep too far, and sheath is difficult to the problem of touching；It can be directly by office when office's parts damages Component is replaced, and is avoided replacing entire outer sheath, is reduced replacement cost；Facilitate storage and storage after disassembly, Reduce occupying for space；

(4) the tail end outer sheath tail end face spherical in shape has been evenly arranged on the spherical and multiple has been inserted into for optical fiber cable Optic fibre hole, in order to be inserted into the convenience of optical fiber cable, medical staff can be inserted according to the position of different tumours by different optic fibre holes Enter, reduce the difficulty of insertion optical fiber cable, optical fiber cable also plays the effect of fixed optical fiber cable, reduces optical fiber cable in outer sheath Internal shaking.

Detailed description of the invention

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

Fig. 2 is the structural schematic diagram of front end outer sheath；

Fig. 3 is the structural schematic diagram of intermediate outer sheath；

Fig. 4 is the structural schematic diagram of tail end outer sheath.

In figure: 1, front end outer sheath；1-1, developing line；1-2, the first external screw thread；2, intermediate outer sheath；2-1, the second outer spiral shell Line；3, tail end outer sheath；3-1, optic fibre hole；4, optical fiber cable；4-1, optical fiber luminescent body；5, handle；5-1, anti-skid chequer.

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 Figure 1, a kind of telescopic optical dynamic therapy outer sheath, before which successively includes Hold outer sheath 1, intermediate outer sheath 2 and tail end outer sheath 3, intermediate 2 both ends of outer sheath respectively with front end outer sheath 1 and tail end Outer sheath 3 is flexibly connected；

The front end face spherical in shape of the front end outer sheath 1, front end side wall are equipped with a circle developing line 1-1；

The intermediate outer sheath 2 includes multiple telescoping tubes, and the front end of the telescoping tube side wall is in arc surface, telescoping tube Tail end is embedded in inside another telescoping tube or is flexibly connected with tail end outer sheath 3；The telescoping tube number of intermediate outer sheath 2 is indefinite, Preferred telescoping tube number is three in the present embodiment；

The front end of 3 side wall of tail end outer sheath is in arc surface, and tail end face spherical in shape has been evenly arranged on the spherical Multiple optic fibre hole 3-1 being inserted into for optical fiber cable 4.

Further, the 3 tail end side wall of tail end outer sheath is equipped with handle 5,5 side wall of handle is equipped with anti-skid chequer 5- 1；The holding of the device is facilitated by handle 5, anti-skid chequer 5-1 ensure that hand-held stability.

Further, the 1 tail end outer wall of front end outer sheath is equipped with the first external screw thread 1-2.

Further, 2 front inner wall of intermediate outer sheath is equipped with the first internal screw thread to match with the first external screw thread, Rear end outer wall is equipped with the second external screw thread 2-1.

Further, the front inner wall of the tail end outer sheath 3 is equipped in second to match with the second external screw thread 2-1 Screw thread.

Further, 4 end of optical fiber cable is equipped with optical fiber luminescent body 4-1, the optical fiber luminescent body 4-1 is located at front end epitheca Inside pipe 1.

Further, the front end outer sheath 1, intermediate outer sheath 2 and tail end outer sheath 3 are PVC transparent hose.

Before carrying out optical dynamic therapy using the utility model, photosensitizer is used to patient first, is injected in patient photosensitive Wait for a period of time after agent (usually 2-48 hours) carry out laser irradiation again, start optical dynamic therapy；Patient is anaesthetized, Then the parameters such as output power, frequency and intensity of laser in debugging optical fiber line 4；Then it is selected according to the knub position of patient The intermediate outer sheath 2 of suitable telescoping tube quantity is selected, then successively by front end outer sheath 1, intermediate outer sheath 2 and tail end outer sheath 3 It is connected；It, can be by X-ray or CT come the developing line in position nose outer sheath 1 by the targeted treatment area of outer sheath merging tumour 1-1, it is ensured that front end outer sheath 1 accurately reaches the treatment position of tumour, prevents outer sheath is deeply insufficient from influencing therapeutic effect, Prevent outer sheath from going deep into too deep laser normal tissue being caused to damage；Then by optical fiber cable 4 from 3 tail end of tail end outer sheath Optic fibre hole 3-1 insertion, for the convenience of operation, medical staff can be inserted into from different optic fibre hole 3-1 as the case may be, then Light illuminator 4-1 is placed in front end outer sheath 1 to the optical dynamic therapy carried out to tumour；After treatment is finished, optical fiber is withdrawn from Line 4 and outer sheath.

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 telescopic optical dynamic therapy outer sheath, it is characterised in that: the outer sheath successively include front end outer sheath (1), in Between outer sheath (2) and tail end outer sheath (3), intermediate outer sheath (2) both ends respectively with front end outer sheath (1) and tail end epitheca (3) are managed to be flexibly connected；

The front end face spherical in shape of the front end outer sheath (1), front end side wall are equipped with circle developing line (1-1)；

The intermediate outer sheath (2) includes multiple telescoping tubes, and the front end of the telescoping tube side wall is in arc surface, the tail of telescoping tube End is embedded in inside another telescoping tube or is flexibly connected with tail end outer sheath (3)；

The front end of tail end outer sheath (3) side wall is in arc surface, and tail end face spherical in shape has been evenly arranged on the spherical more A optic fibre hole (3-1) for optical fiber cable (4) insertion.

2. optical dynamic therapy outer sheath according to claim 1, it is characterised in that: tail end outer sheath (3) tail end-side Wall is equipped with handle (5), and handle (5) side wall is equipped with anti-skid chequer (5-1).

3. optical dynamic therapy outer sheath according to claim 1, it is characterised in that: outside front end outer sheath (1) tail end Wall is equipped with the first external screw thread (1-2).

4. optical dynamic therapy outer sheath according to claim 3, it is characterised in that: in intermediate outer sheath (2) front end Wall is equipped with the first internal screw thread to match with the first external screw thread (1-2), and rear end outer wall is equipped with the second external screw thread (2-1).

5. optical dynamic therapy outer sheath according to claim 4, it is characterised in that: the front end of the tail end outer sheath (3) Inner wall is equipped with the second internal screw thread to match with the second external screw thread (2-1).

6. optical dynamic therapy outer sheath according to claim 1, it is characterised in that: sent out equipped with optical fiber optical fiber cable (4) end Body of light (4-1), it is internal that the optical fiber luminescent body (4-1) is located at front end outer sheath (1).

7. optical dynamic therapy outer sheath according to claim 1, it is characterised in that: the front end outer sheath (1), centre are outer Sheath (2) and tail end outer sheath (3) are PVC transparent hose.