CN202218899U

CN202218899U - Puncture device

Info

Publication number: CN202218899U
Application number: CN2011203093423U
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: 2012-05-16
Anticipated expiration: 2021-08-24

Abstract

The utility model discloses a puncture device, which comprises a sleeve pipe and a puncture rod equipped inside the sleeve pipe and applied for puncturing tissue. A small hole penetrating the sleeve pipe wall is equipped on the sleeve pipe. The small hole is communicated with the inner side of the sleeve pipe. The puncture device further comprises an air valve equipped on the sleeve pipe. The air valve comprises a pivot pipe and a pipe joint for connecting an air source. The pivot pipe and the pipe joint are mutually fixed or integrally formed. The inner channel of the pivot pipe and the inner channel of the pipe joint are mutually communicated. The side wall of the pivot pipe is provided with an air hole which is communicated with the inner channel of the pivot pipe. The air valve is connected on the sleeve pipe in a pivoted way through the pivot pipe. The air valve can be rotated and switched between a first position and a second position of the sleeve pipe. The puncture device in the utility model prevents air leakage risks during an operation and improves the safety factor. Meanwhile, the puncture device is generally simple and aesthetically attractive.

Description

Perforator

Technical field

This utility model relates to a kind of perforator, relates in particular to a kind of swivel joint of perforator, belongs to technical field of medical instruments.

Background technology

Perforator is a kind of stomach wall also provides passage for other Minimally Invasive Surgery apparatuses entering body cavitys operating theater instruments that pierces through, and belongs 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 said sleeve pipe.For transdermal, cut epiderm skin with scalpel earlier, puncturing lever penetrates stomach wall and gets into body cavity then.Near-end through to said puncturing lever is exerted pressure, and stomach wall is passed at the tip that promotes said puncturing lever, gets into body cavity up to it.Behind perforator entering 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 through 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 very near from sleeve pipe, and operation is convenient inadequately, in operation process, occurs being run into because of carelessness and causing gas leakage by the doctor through regular meeting.

The utility model content

The purpose of this utility model is to solve above-mentioned technical problem, proposes a kind of perforator.

The purpose of this utility model will be achieved through following technical scheme:

A kind of perforator comprises a sleeve pipe and the built-in puncturing lever that wherein is used to puncture tissue, offers the aperture that always wears tube wall on the said sleeve pipe; Said aperture links to each other with said telescopic inner passage, and said perforator comprises that also one is arranged on the air valve on the sleeve pipe, and said air valve comprises that a pivot tube and is used to connect the pipe joint of source of the gas; Said pivot tube and said pipe joint interfix or are one-body molded; The mutual UNICOM in the inner passage of said pivot tube and the inner passage of said pipe joint, the sidewall of said pivot tube offers a passage, the inner passage UNICOM of said passage and said pivot tube; Said air valve passes through the pivot tube pivotal connection in said sleeve pipe

Said air valve can rotate switching between the telescopic primary importance and the second position,

When air valve during in telescopic primary importance, the axis of said passage and the axis of said aperture are coaxial, UNICOM inner passage and source of the gas;

When air valve during in the telescopic second position, said pipe joint and said casing wall outer surface are close to, and cut off the path of inner passage and source of the gas.

Preferably, said pivot tube is vertical each other with said pipe joint.

Preferably, said passage is suitable with said hole diameter.

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

Preferably, saidly be provided with the locating slot that is used to locate air valve in awkward-sounding, said air valve is provided with the convexity that matches with said locating slot.

Preferably, said convexity pivoting action in said locating slot forms the primary importance and the second position of air valve, and the diameter between the said locating slot is vertical each other.

Preferably, said convexity be arranged on said passage directly over or under.

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

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

Preferably, the outer surface of said convexity is circular-arc, and said locating slot is an arc, and the summit of said locating slot is arcual distal-most end.

Preferably, the outer surface of said convexity is a horn shape, and said locating slot parting face is a horn shape, and the summit of said locating slot is the summit at angle.

The beneficial effect of this utility model is mainly reflected in: be used for UNICOM or cut off source of the gas swivel joint structure and with telescopic position be provided with 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 this utility model air valve when primary importance, does not comprise puncturing lever this moment.

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

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

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

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

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

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

Wherein.

1	Sleeve pipe	11	Casing wall	110	The inner passage
						12	Aperture	21	Pipe joint	210	The ventilation end
22	Pivot tube	220	Passage	3	Protruding
						31	Locating slot	5	Awkward-sounding	50	Air valve
10	The main channel	?	?	?	?

The specific embodiment

This utility model provides a kind of perforator; Like 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 to puncture tissue, offer the aperture 12 that always wears tube wall on the said sleeve pipe 1; Said perforator comprises that also one is arranged on the air valve 50 on the sleeve pipe 1; Said air valve 50 comprises that a pivot tube 22 and is used to connect the pipe joint 21 of source of the gas, and pivot tube 22 is one-body molded with pipe joint 21, said pivot tube 22 and the said pipe joint 21 middle inner passages 110 that all offer; And inner passage 110 is mutual UNICOMs; Source of the gas gets into through the ventilation end 210 of pipe joint 21, and said aperture 12 communicates with said inner passage 110, main channel 10 UNICOMs of aperture 12 and sleeve pipe 1.The sidewall of said pivot tube 22 offers a passage 220; Passage 220 and inner passage 110 UNICOMs; In order to make the circulation of source of the gas more smooth and easy, pivot tube 22 is set to mutual vertical fixing with pipe joint 21, and said passage 220 is suitable with said aperture 12 diameters.Offer one on the said sleeve pipe 1 and be used to place the awkward-sounding 5 of air valve 50, air valve 50 is pivotable between awkward-sounding 5 the primary importance and the second position through 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 said passage 210 and said 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 through 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, said pipe joint 21 is close to the outer surface of said casing wall 11; Since offered on the sleeve pipe 1 awkward-sounding 5, so, as shown in Figure 5; Said pipe joint 21 is close to said 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 promptly 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.

In order to make air valve 50 in awkward-sounding 5, better to locate, more can grasp the swing of air valve 50 when also can the handled easily person using, be provided with the locating slot 31 that is used to locate air valve 50 in said awkward-sounding 5; The sidewall of pivot tube 22; Directly over the said passage 210 or under on be provided with the convexity 3 that matches with locating slot 31, protruding 3 can adopt resin material or resilient material, can move at locating slot 31 internal rotation for protruding 3; Said protruding 3 outer surface is circular-arc; This moment, the parting face of locating slot 31 also was a circular arc, can certainly adopt the convexity 3 of horn shape, and the parting face of corresponding locating slot 31 is a horn shape.

Said protruding 3 in said locating slot 31 pivoting action form the primary importance and the second position of air valve 50; 31 fens two parts of said locating slot; And non-flat transition between two parts is used to make air valve 50 to 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; Have only as operator and in person air valve 50 is switched between the primary importance and the second position, just can realize the switching of ventilating, holding one's breath, and can produce tangible feel.Learn in conjunction with Fig. 2 and Fig. 5; The angle that first, second position forms is 90 degree; Be said air valve 50 when primary importance, the first of the corresponding locating slot 31 in the summit of said locating slot 31, air valve 50 is when the second position; The second portion of the corresponding locating slot 31 in the summit of said locating slot 31, two parts circular arc summit is vertical each other to the radius of round dot.

In operating process; Rotate UNICOM and cut-out that air valve 50 is the may command source of the gas as required, because convexity 3 has better been located air valve 50 with the structure of locating slot 31, simultaneously; Stressed when having strengthened air valve 50 rotations can not cause air valve to rotate leaking gas owing to the operator touches unintentionally.

This utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within the protection domain of this utility model.

Claims

1. perforator; Comprise a sleeve pipe and the built-in puncturing lever that wherein is used to puncture tissue, offer the aperture that always wears tube wall on the said sleeve pipe, said aperture communicates with said telescopic inside; It is characterized in that: said perforator comprises that also one is arranged on the air valve on the sleeve pipe; Said air valve comprises that a pivot tube and is used to be connected the pipe joint of source of the gas, and said pivot tube and said pipe joint interfix or be one-body molded, the mutual UNICOM in the inner passage of said pivot tube and the inner passage of said pipe joint; The sidewall of said pivot tube offers a passage; The inner passage UNICOM of said passage and said pivot tube, said air valve passes through the pivot tube pivotal connection in said sleeve pipe

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

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

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

5. perforator according to claim 4 is characterized in that: saidly be provided with the locating slot that is used to locate air valve in awkward-sounding, said air valve is provided with the convexity that matches with said locating slot.

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

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

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

9. perforator according to claim 8 is characterized in that: the outer surface of said convexity is circular-arc, and said locating slot is an arc, and the summit of said locating slot is arcual distal-most end.

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