CN201668460U

CN201668460U - Percutaneous puncture focus exenteration device

Info

Publication number: CN201668460U
Application number: CN2010201782484U
Authority: CN
Inventors: 鲍健
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-23
Filing date: 2010-04-23
Publication date: 2010-12-15
Anticipated expiration: 2020-04-23

Abstract

The utility model relates to percutaneous puncture focus exenteration device, which comprises a shell, a needle holder, an outer sleeve, a pull handle, a taking inner core, a reset spring, an outer sleeve seat and a nut, wherein the shell is provided with a positioning spring plate; the needle holder is arranged in the shell in a sliding way, the back end of the needle holder is provided with a pull convex edge, and the surface of the needle holder, on which the pull convex edge is positioned, is provided with a positioning convex block; when pulling back the pull handle, the positioning convex block is propped against the free end of the positioning spring plate to lead the needle holder to press the reset spring and lead the needle holder to realize buckling and positioning in the shell; the needle holder is fixedly provided with the outer sleeve seat, the outer sleeve seat can be installed on the outer sleeve through the nut; the front section of the taking inner core is inserted into the outer sleeve, the back end of the taking inner core is fixed on the pull handle, the extending part of the taking inner core, which extends toward the back of the pull handle, is served as an electrode contact, the front end of the pull handle is provided with a pull claw, the front end of the pull claw is provided with a pull hook, and the pull hook is matched with the pull convex edge; and when the pull handle is pushed forward, the pull hook can make the free end of the positioning spring plate separate from the positioning convex block, and the needle holder is reset under the action of the reset spring.

Description

Focus enucleation device by percutaneous puncture

Technical field

This utility model relates to a kind of medical apparatus, is specially focus enucleation device by percutaneous puncture, is the operating theater instruments of small lesion in a kind of percutaneous puncture excision body.

Background technology

Closely during the last ten years, along with fast updating and the development of medical examination apparatus such as CT, MRI etc.; The raising of health of people health check-up consciousness is clinically examined to such an extent that the chance of minimal disease at positions such as lung, liver, kidney progressively increases.But in treatment, except routine observation and excision, there is not the effective medical apparatus of a kind of Wicresoft can solve this difficult problem as yet to such focus.The difficult choice that these also at present a lot of just patients are faced.Therefore, utility model is a kind of safe and effective, and wound is little, and painful few medical apparatus is very necessary.

Summary of the invention

The purpose of this utility model is to remedy the deficiency of prior art shortage to the small lesion treatment means, open up a new Minimally Invasive Surgery approach, for clinical provide a kind of can under the situation that need not to operate on, thoroughly cut out except that body in small lesion, and the residual and diffusion that can prophylaxis of tumours causes because of operation, the also focus enucleation device by percutaneous puncture that complication such as the back is hemorrhage take place of can avoiding puncturing.

The technical scheme that provides according to this utility model, this focus enucleation device by percutaneous puncture, comprise shell, punch block, trocar sheath, puller handle, get thing inner core, back-moving spring, overcoat base and nut, it is characterized in that: on shell, be provided with Location resilient piece, punch block is slidingly installed in the enclosure, the rearward end of described punch block has the drawing fin, on the surface of punch block, be provided with locating convex block with drawing fin, during the puller handle post-tensioning, the free end of locating convex block and Location resilient piece offset make punch block compress back-moving spring and punch block is realized in the enclosure after move and fasten the location; The described overcoat base of fixed installation on the punch block front side, the overcoat base is equipped with trocar sheath by nut, the leading portion of getting the thing inner core is plugged in the trocar sheath, the rearward end of getting the thing inner core is fixed on the puller handle, get the thing inner core and be used as the electrode tieing to the extension at puller handle rear, the front end of puller handle has the drawing pawl, and the front end of drawing pawl has the drawing hook, and the drawing hook cooperates with the drawing fin; When pushing away before the puller handle, the drawing hook makes the free end of Location resilient piece and locating convex block break away from, and punch block resets under the elastic force effect of back-moving spring.

Leading section at described punch block is provided with elastic buffering pad.

On the free end of described Location resilient piece, be provided with to break away from and drive the inclined-plane.

Get the far-end of thing inner core and tell 3～7, the most advanced and sophisticated inboard of getting the thing inner core is provided with hamulus, is umbrella shape when making it stretch out trocar sheath by setting memory processing and struts, and recovers to be cylindricality when retracting to trocar sheath.

This utility model can be clinical provide a kind of can under the situation that need not to operate on, thoroughly cut out except that body in small lesion, and the residual and diffusion that can prophylaxis of tumours causes because of operation, the focus enucleation device by percutaneous puncture that also can avoid complication such as postoperative hemorrhage to take place.Remedied lacked clinically at present to the effective minimally-invasive treatment means of early stage focus.

In addition, this utility model also can be used for the biopsy to big focus, its advantage is to obtain the bulk specimen, to improve the accuracy of biopsy, simultaneously because it cooperates electricity cutting and electric coagulation apparatus, the plantation diffusion that can prophylaxis of tumours causes because of operation also can reduce the generation of complication such as the puncture back is hemorrhage.

Description of drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a vertical view of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with concrete drawings and Examples.

As shown in the figure: this focus enucleation device by percutaneous puncture, it comprises shell 1, punch block 2, trocar sheath 3, puller handle 4, get thing inner core 5, back-moving spring 6, cushion pad 7, overcoat base 8 and nut 9, on shell 1, be provided with Location resilient piece 1.1, on the free end of Location resilient piece, be provided with disengaging and drive inclined-plane 1.2.Punch block 2 is slidingly mounted in the shell 1, the rearward end of described punch block 2 has drawing fin 2.1, on the surface of punch block 2, be provided with locating convex block 2.2 with drawing fin 2.1, during puller handle 4 post-tensionings, the free end of locating convex block 2.2 and Location resilient piece 1.1 offsets and makes punch block 2 compress back-moving spring 6 and make punch block 2 realize that shell 1 in fastening locatees; The described overcoat base 8 of fixed installation on punch block 2, overcoat base 8 connects trocar sheath 3 by nut 9.The leading portion of getting thing inner core 5 is plugged in the trocar sheath 3, the rearward end of getting thing inner core 5 is fixed on the puller handle 4, get thing inner core 5 and be used as the electrode tieing to the extension at puller handle 4 rears, the front end of puller handle 4 has drawing pawl 4.1, the front end of drawing pawl 4.1 has drawing hook 4.2, and drawing hook 4.2 cooperates with drawing fin 2.1; When pushing away before the puller handle 4, drawing hook 4.2 makes the free end of Location resilient piece 1.1 and locating convex block 2.2 break away from, and punch block 2 resets under the elastic force effect of back-moving spring 6.

Get the far-end of thing inner core 5 and tell 3～7, its most advanced and sophisticated inboard is provided with hamulus, is umbrella shape when making it stretch out trocar sheath by setting memory processing and struts, and recovers to be cylindricality when retracting to trocar sheath.

This utility model is equipped with in addition with trocar sheath 3 bores and mates the puncture needle that also can be fixed in the trocar sheath 3, and at this moment, trocar sheath 3 cooperates with puncture needle and is used for the skin puncture inserting needle.

Locating convex block 2.2 on the punch block 2 can be established many groups from front to back, realizes different gears.And the locating convex block 2.2 that is each grade forms the passage that pushes away before the drawing pawl 4.1 by two compositions at interval between two locating convex blocks 2.2.

The part that Location resilient piece 1.1 is surrounded by the U-shaped elongated slot on shell 1 by offer the U-shaped elongated slot on shell 1 forms.

Front end in described puller handle is fixed with erection column, and the rear end of described spring is socketed on the erection column.Offer installing hole at described punch block back segment, this installing hole is a blind hole, and the diameter of described installing hole is greater than the external diameter of back-moving spring, and the degree of depth of installing hole is greater than the length of erection column.

Leading section at described punch block 2 is provided with elastic buffering pad 7.On the free end of described Location resilient piece 1.1, be provided with to break away from and drive inclined-plane 1.2.

Before the use, earlier puncture needle is inserted in the trocar sheath 3, puncture under the CT location, arrival is withdrawed from puncture needle after determining the position, inserts and gets thing inner core 5, and is with nut 9 that trocar sheath 3 is fixing with overcoat base 8.Drawing hook 4.2 fastens with drawing fin 2.1, during use, hands is pinched puller handle 4 and post-tensioning, punch block 2 overcomes back-moving spring 6 in shell 1 elastic force slides backward, make Location resilient piece 1.1 and locating convex block 2.2 offset, punch block 2 realizes that shell 1 in fastening locatees, according to getting the gear that length that thing inner core 5 needs stretch out is determined puller handle 4 post-tensionings, punch block 2 realizes fastening the location in shell 1 after, this moment puller handle 4 can before push away and the corresponding segment distance of the gear of puller handle 4 post-tensionings.Push-and-pull is pulled out handle 4 and make that getting thing inner core 5 stretches out in trocar sheath 3 before this moment, getting thing inner core 5 protracts and is umbrella shape separately thereupon, after confirming that focus is being got in the extracting scope of thing inner core 5, connect the electricity cutting device, and getting 120 ° of thing inner core 5 rotations, focus is separated with surrounding tissue and stop blooding.Firmly promote puller handle 4 then forward, drawing hook 4.2 is against to break away from and drives inclined-plane 1.2, make the free end of Location resilient piece 1.1 stick up outward, Location resilient piece 1.1 is separated with locating convex block 2.2, punch block 2 and trocar sheath 3 eject forward rapidly, make the front end position of trocar sheath 3 move on to the position of the leading section of getting thing inner core 5 rapidly, just are equivalent to get in the thing inner core 5 rapid indentation trocar sheaths 3, make that getting thing inner core 5 takes off the surrounding tissue under focus and the separation thereof, reaches the purpose that grasps focus.After focus is taken off, turn on nut 9, get thing inner core 5, keep trocar sheath 3, prevent the generation of complication in vivo so that further carrying out electricity by it coagulates or drug hemostasis.

When clinical discovery gets the minimal disease at positions such as body such as lung, liver, kidney.Can be under the CT location, preferred suitable path, use focus enucleation device by percutaneous puncture of the present utility model, directly be punctured to and reach lesions position through skin, stretch out and get thing inner core 5 and hold focus, connect electricity cutting device (having cutting and hemostatic function) and carry out 120 degree rotations, isolate focus and surrounding tissue, touch back-moving spring 6 again and make and get thing inner core 5 and close up rapidly simultaneously isolated focus and surrounding tissue bounce back into and get in thing inner core 5 and the trocar sheath 3.Thing inner core 5 and focus are got in taking-up, keep trocar sheath 3 in vivo so that further carry out electric coagulation hemostasis by it, prevent the generation of complication.Therefore, use focus enucleation device by percutaneous puncture of the present utility model can be safely, effectively, Wicresoft finish cutting out of small lesion removed, remedied present lacked clinically to the effective minimally-invasive treatment means of small and early stage focus.

In addition, utilize this apparatus of same principle also to can be used for to the biopsy of focus greatly, its advantage is to obtain the bulk specimen, to improve the accuracy of biopsy, simultaneously because it cooperates electricity cutting and electric coagulation apparatus, the plantation diffusion that can prophylaxis of tumours causes because of operation also can reduce the generation of complication such as the puncture back is hemorrhage.

Claims

1. focus enucleation device by percutaneous puncture, comprise shell (1), punch block (2), trocar sheath (3), puller handle (4), get thing inner core (5), back-moving spring (6), overcoat base (8) and nut (9), it is characterized in that: on shell (1), be provided with Location resilient piece (1.1), punch block (2) is slidingly mounted in the shell (1), the rearward end of described punch block (2) has drawing fin (2.1), on the surface of the punch block with drawing fin (2.1) (2), be provided with locating convex block (2.2), during puller handle (4) post-tensioning, the free end of locating convex block (2.2) and Location resilient piece (1.1) offset make punch block (2) compress back-moving spring (6) and punch block (2) is realized shell (1) in after move fastening and locate; Fixed installation described overcoat base (8) on punch block (2) front side, overcoat base (8) is equipped with trocar sheath (3) by nut (9), the leading portion of getting thing inner core (5) is plugged in the trocar sheath (3), the rearward end of getting thing inner core (5) is fixed on the puller handle (4), get thing inner core (5) and be used as the electrode tieing to the extension at puller handle (4) rear, the front end of puller handle (4) has drawing pawl (4.1), the front end of drawing pawl (4.1) has drawing hook (4.2), and drawing hook (4.2) cooperates with drawing fin (2.1); During preceding the pushing away of puller handle (4), drawing hook (4.2) makes the free end of Location resilient piece (1.1) and locating convex block (2.2) break away from, and punch block (2) resets under the elastic force effect of back-moving spring (6).

2. focus enucleation device by percutaneous puncture as claimed in claim 1 is characterized in that: the leading section at described punch block (2) is provided with elastic buffering pad (7).

3. focus enucleation device by percutaneous puncture as claimed in claim 1 is characterized in that: be provided with disengaging and drive inclined-plane (1.2) on the free end of described Location resilient piece (1.1).

4. focus enucleation device by percutaneous puncture as claimed in claim 1, it is characterized in that: the far-end of getting thing inner core (5) is told 3～7, the most advanced and sophisticated inboard of getting thing inner core (5) is provided with hamulus, be umbrella shape when making it stretch out trocar sheath and strut, recover to be cylindricality when retracting to trocar sheath by setting memory processing.