CN100579493C

CN100579493C - Retina central artery probe

Info

Publication number: CN100579493C
Application number: CN200710105970A
Authority: CN
Inventors: 卢宁; 王宁利; 李继鹏; 王志敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-04
Filing date: 2007-06-04
Publication date: 2010-01-13
Anticipated expiration: 2027-06-04
Also published as: CN101254144A

Abstract

The invention discloses a probe for central artery of retina for dredging central artery embolism of retina, which comprises a probe body, a supporting rod and a handle, and can be integrated into an all-in-one structure, a dyad structure or a triad structure. The probe can be designed as a retractable structure in the supporting rod, which can have attraction function at the same time.

Description

The Zinn's artery probe

Technical field

The invention belongs to operation and use medical apparatus and instruments, relate in particular to the apparatus that uses when ophthalmology is implemented the optical fundus operation.

Background technology

The pathogenesis of central retinal artery occlusion is that embolus forms thromboembolism in Zinn's artery, and blocking blood flow causes tissue degeneratiaon's necrosis of institute's blood supply scopes such as retina, can cause blind immediately.The course of disease surpasses 3 days and then is difficult to recover vision.Central retinal artery occlusion is the ophthalmology emergency case, does not still have the effective Drug therapy or the therapeutic method of surgery of generally acknowledging at present.In theory, the key of its treatment is embolus is come off, and recovers blood circulation.

The application of probe in surgical operation has history remote, is mainly used in the inner case of detecting lumen, sinus tract.Surgical probe slightly has several millimeters, and is long more than 10 centimetres, can not be used for ophthalmologic operation.Modern medicine is used the development that blood vessel prosthesis can be described as probe technique to heart and skull cerebrovascular obstruction.Most typical operation is the treatment to myocardial infarction, its method is to cut femoral artery from groin, an end there is the conduit of tens of centimeter length of balloon insert femoral artery, the swing probe up enters heart arter by aorta, allow balloon expand at the angiostenosis place, also can put the net metal support, strut blocked tremulous pulse, make blood recover to flow in stenosis.In this treatment operation, used metal probe pliability height, caliber is generally more than 1.5mm.

It is identical that the eyes retina central artery blocks from the pathomechanism myocardial infarction of mediating a settlement, mediation treatment in also can managing in theory.Yet, make the probe that inserts from limbs can not arrive the eyes retina central artery because the bending on the anatomy and remote has the thick of apparatus now.

The existing mature technique of ophthalmology in the present age exposes optic nerve and optical fundus by operation method, and therefore the mediation of implementing central retinal artery occlusion from the part of eye is possible, but does not still have corresponding apparatus at present to implement operation technique.

Summary of the invention

Technical problem to be solved by this invention is, provides a kind of and can insert optic nerve on the optical fundus, and the embolus in the Zinn's artery is implemented the apparatus of compressing massage, embolus can be squeezed brokenly with it, and damages very little to optic nerve and Zinn's artery.The present invention also provides the preparation method of this apparatus.

Zinn's artery probe of the present invention comprises probe spare, support bar and handle three parts.Wherein, probe spare afterbody is connected with the front end of support bar, and the afterbody of support bar is connected with the handle front end.

The probe spare of Zinn's artery probe of the present invention, support bar and handle three parts can be integral structures, can be dyad formula structures, also can be triad formula structures.When being triad formula structure, promptly probe spare, support bar and handle respectively are one; When being dyad formula structure, can be that probe spare and support bar are one, handle portion is another body, or handle portion and support bar be one, probe spare is another body.When using split-type structural, each several part can be carried out and be threaded or socket.Being connected to be threaded to of its middle probe spare and support bar is preferred, support bar and handle to be connected with the socket be preferred.

The main part of probe spare can be to go up inferior thick circular bar shape, also probe spare can be made as top slightly slightly, and the taper shape that the bottom is slightly thin is to increase the resistant to bending intensity of probe spare, the smooth and easy degree when keeping inserting optic nerve again.The leading section polishing of probe spare is hemispherical or arc sheet shape.Support bar is circular bar shape, flat bar shape, or tubular, flat tube shape; Handle portion is any shape of being convenient to hand.

As optimization, make the handle of Zinn's artery probe of the present invention with general syringe needle tube, the support bar afterbody is designed to the shape of general syringe needle afterbody, be suitable for pegging graft with the syringe needle tube front end.

As optimization, the form that probe spare is designed to stretch.Support bar adopts hollow pipe, and seal wire and spring are installed in it, links to each other with probe spare, and button is set on handle, controls the flexible of probe spare; Perhaps the afterbody of the probe spare hollow tube chamber by support bar is extended to handle portion, push-pull button is set on handle, control probe spare reaches before the support bar, or is withdrawn in the support bar.

As optimization, be with the form that attracts function with probe design.With above-mentioned concertina type structural similarity, support bar adopts hollow pipe, and support bar combines with being combined into of handle is sealed, and the front end of support bar is installed silica gel tube, is provided with to attract the hole on handle.Device attracts bar between the silica gel tube of handle attraction hole and support bar front end, forms syphon structure, or attracts the hole to locate to connect negative pressure suction device at handle, forms the vacuum suction structure.

Except that the above-mentioned handle of making Zinn's artery probe of the present invention with the glass syringe needle tubing, each parts of probe all can be selected for use and variously be fit to medical metal materials and make, and comprise rustless steel, Ti-Ni alloy etc.Wherein be preferred with the Ti-Ni alloy.Its manufacture method can adopt processes such as casting, forging and pressing, cutting.

Zinn's artery probe using method of the present invention: at first carry out through closed type 3 otch vitrectomies, visit logical with the probe along the Zinn's artery outer wall then, Zinn's artery is implemented compressing, massage, can make endovascular embolus fragmentation immediately, come off, recover blood circulation.In therapeutic process, have hemorrhagely as the part, it is logical to utilize the probe that attracts function to visit while sucking blood, and the assurance surgical field of view is high-visible.

The inventor uses the patient of Zinn's artery probe therapy 9 routine central retinal artery occlusions of the present invention, and the course of disease is in 4 days.Do examination of visual acuity before the treatment, vision is an index or following, does the fundus photography inspection simultaneously.Treatment back periodic review vision is also done fundus photography, and is analyzed before the treatment.Wherein 7 routine blood circulations recover, and 6 routine visions are significantly improved before the operation.

Description of drawings

Fig. 1 is integral type of the present invention or disome formula Zinn's artery probe structure sketch map;

Fig. 2 A and Fig. 2 B are telescopic Zinn's artery probe structure of probe spare of the present invention and user mode sketch map;

Fig. 3 A and Fig. 3 B have Zinn's artery probe structure and the user mode sketch map that attracts function for the present invention;

Parts that number in the figure is represented or position are 1 one handle; The 2-support bar; 3-probe spare; The 4-seal wire; 5-button (push-pull button); The 6-silica gel tube; 7-attracts the hole.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

The be made into one Zinn's artery probe of structure of embodiment 1

But select medical metal materials such as rustless steel, Ti-Ni alloy for use, adopt the method for casting, forging and pressing or cutting to make the Zinn's artery probe that is connected as a single entity, as shown in Figure 1, it comprises probe spare 3, support bar 2 and handle 1.Its middle probe spare 3 is garden cylindricality or upper coarse and lower fine taper shape, diameter 0.1～0.2mm, and length 5～7mm, the front end polishing is hemispherical or arc sheet shape; Support bar 2 is garden cylindricality or flat garden cylindricality, diameter 1.2～1.8mm, length 3～4cm; Handle 1 is garden cylindricality, oblateness or any shape that is suitable for handing.

Embodiment 2 makes the Zinn's artery probe of two body structures

As shown in Figure 1, the probe spare 3 and the support bar 2 of Zinn's artery probe of the present invention are made as one, and handle 1 is an one.Make handle 1 with 1 milliliter of syringe needle tube.The tail end of support bar 2 is the medicated cap shape, and its size shape is identical with the tail end of No. 7 syringe needles of injection, can be socketed on the syringe needle tube.

Embodiment 3 makes telescopic Zinn's artery probe

Shown in Fig. 2 A and Fig. 2 B, Zinn's artery probe of the present invention is trisome or two body structures.Wherein, probe spare 3 is an one, and support bar 2 and handle 1 are one or disome.Probe spare 3 is garden cylindricality or taper, and support bar 2 and handle 1 are hollow pipe, probe spare 3 and support bar 2 sockets, and probe spare 3 can stretch in support bar 2 tube chambers.Probe spare 3 flexible power in support bar 2 tube chambers can have two kinds of frame modes: a kind of mode is that seal wire 4 and spring are installed in tube chamber, and button 5 is set on handle 1.The front end of seal wire 4 and spring all is connected with probe spare 3, and the rear end of seal wire 4 is connected with button 5 on the handle 1.Seal wire 4 tractive probe spares 3 retractions, spring promotes probe spare 3 and stretches out; Make the flexible another kind of modes of probe spare 3 be, push-pull button 5 and chute are set on handle 1, the afterbody of the probe spare 3 hollow lumen extension by support bar 2 is formed push-pull bar, is connected with push-pull button 5, with stretching of push-pull button 5 control probes.

Embodiment 4 makes has the Zinn's artery probe that attracts function simultaneously

Shown in Fig. 3 A and Fig. 3 B, on the basis of the structure that embodiment 3 probe spares 3 can stretch in support bar 2 tube chambers, the leading section of support bar 2 is installed silica gel tube, is provided with to attract hole 7 on handle 1, and support bar 2 is sealed with being connected to of handle 1.Device attracts bar between the silica gel tube of handle 1 attraction hole 7 and support bar 2 front ends, forms syphon structure, or attracts 7 places, hole connection negative pressure suction device at handle 1, forms the vacuum suction structure., hemorrhage during use with the silica gel tube absorption with in the probe spare 3 withdrawal support bars 2, keep operating field clear.

The technical characterictics such as size that do not add preparation material, each parts of narration in the

foregoing description

2,3,4 all can be with reference to embodiment 1 described processing.

Claims

1. a Zinn's artery probe is used for mediation embolism of central retinal artery when ophthalmologic operation, it is characterized in that it comprises probe spare, support bar and handle three parts; Wherein, support bar is a hollow pipe, and the afterbody of support bar is connected with the handle front end, push-pull button and chute are set on handle, the hollow tube chamber of the afterbody of probe spare by support bar extends to the push-pull button place on the handle, and is connected with push-pull button, control probe spare flexible; Support bar combines with being combined into of handle is sealed, and the front end of support bar is installed silica gel tube, is provided with to attract the hole on handle, and device attracts bar between the silica gel tube of handle attraction hole and support bar front end, forms syphon structure.

2. probe according to claim 1 is characterized in that, support bar is any of tubular, flat tube shape.

3. probe according to claim 1 is characterized in that, makes handle with general syringe needle tube, and the support bar afterbody is the shape of general syringe needle afterbody.