CN102949226A

CN102949226A - Puncture outfit

Info

Publication number: CN102949226A
Application number: CN2011102435146A
Authority: CN
Inventors: 陈望东; 刘凯; 周婧
Original assignee: Touchstone International Medical Science Co Ltd
Current assignee: Touchstone International Medical Science Co Ltd
Priority date: 2011-08-24
Filing date: 2011-08-24
Publication date: 2013-03-06

Abstract

The invention discloses a puncture outfit which comprises a sleeve, a puncture rod and an air valve. The puncture rod is disposed inside the sleeve and used for puncturing tissues sleeve, and the sleeve is provided with a pore running through the sleeve wall and communicated with the inside of the sleeve. The air valve comprises a pivot tube and a tube joint connected with an air source, the pivot tube and the tube joint are fixed with each other or formed integrally, an internal passage of the pivot tube is communicated with an internal passage of the tube joint, a vent hole is reserved on the side wall of the pivot tube and communicated with the internal passage of the pivot tube, and the air valve is in pivoting connection with the sleeve through the pivot tube, and can be rotationally switched between a first position and a second position of the sleeve. The puncture outfit has the advantages that the risk of air leakage during operation can be avoided, safety coefficient is improved, and the puncture outfit is simple and attractive integrally.

Description

Perforator

Technical field

The present invention relates to a kind of perforator, relate in particular to a kind of swivel joint of perforator, belong to technical field of medical instruments.

Background technology

Perforator is a kind ofly to pierce through stomach wall and for other Minimally Invasive Surgery apparatuses enter the operating theater instruments that body cavity provides passage, belong to a kind of Minimally Invasive Surgery apparatus.

Perforator generally includes as the sleeve pipe of other operating theater instruments admission passages and the puncturing lever in the described sleeve pipe.For transdermal, cut epiderm skin with scalpel first, then puncturing lever penetrates stomach wall and enters body cavity.Exert pressure by the near-end to described puncturing lever, stomach wall is passed at the tip that promotes described puncturing lever, until it enters body cavity.After perforator enters body cavity, extract puncturing lever out, sleeve pipe just can be used as the mis instruments passage of carrying out endo-surgical and splanchnoscopy operation.

Chinese patent 200510130187.8 has disclosed a kind of sleeve pipe of prior art, which is provided with a trachea, and this trachea comes UNICOM by an air valve or cuts off the path of sleeve pipe and source of the gas.But this air valve is arranged on the trachea, can rotate around trachea, and from sleeve pipe very close to, it is convenient not to operate, and often can occur being run into because of carelessness by the doctor in operation process and causes gas leakage.

Summary of the invention

The object of the invention is to solve above-mentioned technical problem, propose a kind of perforator.

Purpose of the present invention will be achieved by the following technical programs:

A kind of perforator, comprise a sleeve pipe and the built-in puncturing lever that wherein is used for puncturing tissue, offer the aperture that always wears tube wall on the described sleeve pipe, described aperture links to each other with the inner passage of described sleeve pipe, described perforator comprises that also one is arranged on the air valve on the sleeve pipe, described air valve comprises that a pivot tube and is used for connecting the pipe joint of source of the gas, described pivot tube and described pipe joint interfix or are one-body molded, the mutual UNICOM in the inner passage of described pivot tube and the inner passage of described pipe joint, the sidewall of described pivot tube offers a passage, the inner passage UNICOM of described passage and described pivot tube, described air valve is pivotally connected to described sleeve pipe by pivot tube

Described air valve can switch between the primary importance of sleeve pipe and the second position in rotation,

When the primary importance of air valve at sleeve pipe, the axis of described passage and the axis of described aperture are coaxial, UNICOM inner passage and source of the gas;

When the second position of air valve at sleeve pipe, described pipe joint and described casing wall outer surface are close to, and cut off the path of inner passage and source of the gas.

Preferably, described pivot tube is mutually vertical with described pipe joint.

Preferably, described passage is suitable with described hole diameter.

Preferably, offer one on the described sleeve pipe and be used for placing the awkward-sounding of air valve, described air valve is when the sleeve pipe second position, and described pipe joint and described awkward-sounding outer surface are close to.

Preferably, the described locating slot that is provided with in awkward-sounding for the location air valve, described air valve is provided with the projection that matches with described locating slot.

Preferably, described projection pivoting action in described locating slot forms primary importance and the second position of air valve, and the diameter between the described locating slot is mutually vertical.

Preferably, described projection be arranged on described passage directly over or under.

Preferably, described being provided with in awkward-sounding located respectively air valve in two locating slots of primary importance and the second position.

Preferably, the line at described pivot tube center is arrived on the summit that makes described air valve be positioned the locating slot of primary importance, becomes 90 degree with the summit that makes described air valve be positioned the locating slot of the second position to the angle between the line at described pivot tube center.

Preferably, the outer surface of described projection is circular-arc, and described locating slot is arc, and the summit of described locating slot is the distal-most end of arc.

Preferably, the outer surface of described projection is horn shape, and described locating slot parting face is horn shape, and the summit of described locating slot is the summit at angle.

Beneficial effect of the present invention is mainly reflected in: be used for UNICOM or cut off source of the gas swivel joint structure and with the position of sleeve pipe arrange more reasonable than prior art, make the doctor in operation process, be difficult to run into, so just avoid the danger of gas leakage in the operation, improved safety coefficient.Simultaneously, the integral body of perforator is also more brief, attractive in appearance.

Description of drawings

Fig. 1 is the schematic cross-section of air valve of the present invention when primary importance, does not comprise puncturing lever this moment.

Fig. 2 is the top view of Fig. 1.

Fig. 3 is the local enlarged diagram of A among Fig. 2.

Fig. 4 is the schematic cross-section of air valve of the present invention when the second position, does not comprise puncturing lever this moment.

Fig. 5 is the top view of Fig. 4.

Fig. 6 is the local enlarged diagram of B among Fig. 5.

Fig. 7 is explosive view of the present invention, does not comprise puncturing lever this moment.

Wherein:

。

The specific embodiment

The invention provides a kind of perforator, such as Fig. 1, shown in Figure 7, comprise a sleeve pipe 1 and the built-in puncturing lever (meaning not shown in the figures) that wherein is used for puncturing tissue, offer the aperture 12 that always wears tube wall on the described sleeve pipe 1, described perforator comprises that also one is arranged on the air valve 50 on the sleeve pipe 1, described air valve 50 comprises that a pivot tube 22 and is used for connecting the pipe joint 21 of source of the gas, pivot tube 22 is one-body molded with pipe joint 21, described pivot tube 22 and the described pipe joint 21 middle inner passages 110 that all offer, and inner passage 110 is mutual UNICOMs, source of the gas enters by the ventilation end 210 of pipe joint 21, described aperture 12 communicates with described inner passage 110, main channel 10 UNICOMs of aperture 12 and sleeve pipe 1.The sidewall of described pivot tube 22 offers a passage 220, passage 220 and inner passage 110 UNICOMs, for so that the circulation of source of the gas is more smooth and easy, pivot tube 22 is set to mutually vertical fixing with pipe joint 21, and described passage 220 is suitable with described aperture 12 diameters.Offer one on the described sleeve pipe 1 and be used for to place the awkward-sounding 5 of air valve 50, air valve 50 is pivotable between awkward-sounding 5 primary importance and the second position by pivot tube 22 and ventilates, holds one's breath switching.

As shown in Figure 1, when the primary importance of air valve 50 at sleeve pipe 1, the axis of the axis of described passage 210 and described aperture 12 is coaxial, UNICOM inner passage 110 and source of the gas; At this moment, air valve is in opening, and source of the gas enters into inner passage 110 from ventilation end 210, enters in the aperture 12 and enters in the main channel 10 of sleeve pipe 1 by passage 220.At this moment, the state of air valve 50 in awkward-sounding 5 reaches with the position of sleeve pipe 1 and can be learnt by Fig. 2, Fig. 3.

As shown in Figure 4, when the second position of air valve 50 at sleeve pipe 1, described pipe joint 21 is close to the outer surface of described casing wall 11, since offered on the sleeve pipe 1 awkward-sounding 5, so, as shown in Figure 5, described pipe joint 21 is close to described awkward-sounding 5 outer surfaces, at this moment, air valve 5 is in closed condition, and the path of inner passage 110 and source of the gas namely is cut off; Source of the gas can not enter in the main channel 10 of sleeve pipe 1.The state of air valve 50 in awkward-sounding 5 reaches with the position of sleeve pipe 1 and can be learnt by Fig. 5, Fig. 6.

For so that air valve 50 can be in awkward-sounding 5 interior better location, more can grasp the swing of air valve 50 when also can the handled easily person using, be provided with the locating slot 31 for location air valve 50 in described awkward-sounding 5, the sidewall of pivot tube 22, directly over the described passage 210 or under be provided with the projection 3 that matches with locating slot 31, projection 3 can adopt resin material or resilient material, for projection 3 can rotatablely move in locating slot 31, described protruding 3 outer surface is circular-arc, this moment, the parting face of locating slot 31 also was circular arc, can certainly adopt the projection 3 of horn shape, the parting face of corresponding locating slot 31 is horn shape.

Described protruding 3 primary importance and the second positions at described locating slot 31 interior pivoting actions

formation air valves

50,31 minutes two parts of described locating slot, and non-seamlessly transitting between two parts, be used for making air valve 50 be in primary importance and the second position is all relatively stable, can not slide into the second position from primary importance easily, or slide into primary importance from the second position, only have the operator of working as in person air valve 50 to be switched between primary importance and the second position, just can realize the switching of ventilating, holding one's breath, and can produce obvious feel.Learn in conjunction with Fig. 2 and Fig. 5, the angle that first, second position forms is 90 degree, be that described air valve 50 is when primary importance, the first of the corresponding locating slot 31 in the summit of described locating slot 31, air valve 50 is when the second position, the second portion of the corresponding locating slot 31 in the summit of described locating slot 31, two parts circular arc summit is mutually vertical to the radius of round dot.

In operating process, rotate as required air valve 50 and can control UNICOM and the cut-out of source of the gas, because projection 3 has better been located air valve 50 with the structure of locating slot 31, simultaneously, stressed when having strengthened air valve 50 rotation can not cause air valve to rotate leaking gas owing to the operator touches unintentionally.

The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within protection scope of the present invention.

Claims

1. perforator, comprise a sleeve pipe and the built-in puncturing lever that wherein is used for puncturing tissue, offer the aperture that always wears tube wall on the described sleeve pipe, described aperture communicates with the inside of described sleeve pipe, it is characterized in that: described perforator comprises that also one is arranged on the air valve on the sleeve pipe, described air valve comprises a pivot tube and is connected the pipe joint that is used for connecting source of the gas, described pivot tube and described pipe joint interfix or are one-body molded, the mutual UNICOM in the inner passage of described pivot tube and the inner passage of described pipe joint, the sidewall of described pivot tube offers a passage, the inner passage UNICOM of described passage and described pivot tube, described air valve is pivotally connected to described sleeve pipe by pivot tube

2. perforator according to claim 1 is characterized in that: described pivot tube and the mutually vertical setting of described pipe joint.

3. perforator according to claim 2, it is characterized in that: described passage is suitable with described hole diameter.

4. perforator according to claim 3 is characterized in that: offer one on the described sleeve pipe and be used for placing the awkward-sounding of air valve, described air valve is when the sleeve pipe second position, and described pipe joint and described awkward-sounding outer surface are close to.

5. perforator according to claim 4 is characterized in that: the described locating slot that is provided with in awkward-sounding for the location air valve, described air valve is provided with the projection that matches with described locating slot.

6. perforator according to claim 5 is characterized in that: described projection be arranged on described passage directly over or under.

7. perforator according to claim 6 is characterized in that: described being provided with in awkward-sounding located respectively air valve in two locating slots of primary importance and the second position.

8. perforator according to claim 7, it is characterized in that: the line at described pivot tube center is arrived on the summit that makes described air valve be positioned the locating slot of primary importance, becomes 90 degree with the summit that makes described air valve be positioned the locating slot of the second position to the angle between the line at described pivot tube center.

9. perforator according to claim 8, it is characterized in that: the outer surface of described projection is circular-arc, and described locating slot is arc, and the summit of described locating slot is the distal-most end of arc.

10. perforator according to claim 8, it is characterized in that: the outer surface of described projection is horn shape, and described locating slot parting face is horn shape, and the summit of described locating slot is the summit at angle.