CN103142293B - Bushing with retractable gas receiving pipe - Google Patents
Bushing with retractable gas receiving pipe Download PDFInfo
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- CN103142293B CN103142293B CN201110402620.4A CN201110402620A CN103142293B CN 103142293 B CN103142293 B CN 103142293B CN 201110402620 A CN201110402620 A CN 201110402620A CN 103142293 B CN103142293 B CN 103142293B
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- trachea
- sleeve pipe
- cylinder
- air
- gas
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Abstract
The invention discloses a bushing with a retractable air receiving pipe, which is characterized in that a groove is arranged inwards on a wall of the bushing, a cylindrical body is arranged in the groove, the cylindrical body comprises an air course, an air receiving pipe which can slide relative to the axial direction of the cylindrical body is sleeved on the cylindrical body, the air receiving pipe comprises an air passage, an air core is also arranged in the air passage, the diameter of the air core is equal to the inner diameter of the cylindrical body, when the air receiving pipe is arranged on a first position of the bushing, the air core is plugged into the air course of the cylindrical body; and when the air receiving pipe is arranged on a second position of the bushing, the air core moves out of the air course of the cylindrical body. The bushing has the beneficial effects that the structure of the air receiving pipe which is used for being communicated or disconnected with an air source and retractable connection and movement relation between the air receiving pipe and the bushing are more reasonable than a bushing structure of the prior art, so that the bushing is difficult to touch by a doctor in an operation process, an air leakage danger in the operation can be avoided, and the safety coefficient is increased.
Description
Technical field
The present invention relates to a kind of perforator, particularly relate to a kind of sleeve pipe being applied to perforator, belong to technical field of medical instruments.
Background technology
Perforator a kind ofly pierces through stomach wall and enter the operating theater instruments that body cavity provides passage for other Minimally Invasive Surgery apparatuses, belongs to a kind of Minimally Invasive Surgery apparatus.Perforator generally includes as the sleeve pipe of other operating theater instruments admission passages with through the puncturing lever in described sleeve pipe.In order to transdermal, first cut epiderm skin with scalpel, then puncturing lever penetrates stomach wall and enters body cavity.Apply pressure by the near-end to described puncturing lever, promote the tip of described puncturing lever through stomach wall, until it enters body cavity.After perforator enters body cavity, extract puncturing lever out, sleeve pipe just can as the mis instruments passage performing endo-surgical and splanchnoscopy and operate.
Chinese patent 200510130187.8 discloses 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.This air valve to be arranged on trachea and can to rotate relative to trachea, but due to its Handheld Division from sleeve pipe very close to, it is convenient not to operate, and often there will be in operation process and encountered because of carelessness by doctor and cause gas leakage.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem, propose a kind of safe and reliable puncture outfit casing tube.
Object of the present invention, will be achieved by the following technical programs:
A kind of sleeve pipe with scalable trachea, comprise main channel, the wall of described sleeve pipe inwardly offers a groove, a cylinder is provided with in described groove, described cylinder comprises an air flue be interconnected with described main channel, described cylinder being arranged with one can relatively described cylinder trachea in axial sliding, described trachea connects extraneous source of the gas, described trachea slides between primary importance and the second position, when the primary importance of trachea at sleeve pipe, described trachea and the mutual intussusception of cylinder form first paragraph intussusception length, and described trachea cuts off the path of main channel and source of the gas, when the second position of trachea at sleeve pipe, described trachea and the mutual intussusception of cylinder form second segment intussusception length, and described first paragraph intussusception length is greater than second segment intussusception length, the path of UNICOM main channel and source of the gas.
Preferably, described trachea comprises a gas passage, the internal diameter of described gas passage equals the external diameter of described cylinder, also be provided with a gaseous core in described gas passage, described gaseous core is fixed in described gas passage by a connecting piece, and described brace offers through passage, the diameter of described gaseous core equals the internal diameter of described cylinder, when the primary importance of trachea at sleeve pipe, described gaseous core is inserted in the air flue of described cylinder, cuts off the path of main channel and source of the gas; When the second position of trachea at sleeve pipe, described gaseous core shifts out outside the air flue of described cylinder, the path of UNICOM main channel and source of the gas.
Preferably, in the gas passage of described trachea, be axially arranged with spline, accordingly, the outer wall of described cylinder be axially arranged with gathering sill.
Preferably, the outside of described trachea is arranged with the knob that the described trachea of a driving moves axially, and the internal diameter of the through hole of described knob equals the external diameter of described trachea, and described knob is fixed on described sleeve pipe to axial.
Preferably, the outside of described trachea is provided with a projection, is provided with female thread in described knob, and described projection is located in described female thread and also can be slided along its helix in described female thread.
Preferably, described knob is provided with all groove, described sleeve pipe offers an aperture, has a pin through described aperture, and partly or entirely the submerging in described all grooves of described pin.
Preferably, described gaseous core is taper, and its cone end face is to main channel.
Beneficial effect of the present invention is mainly reflected in: for UNICOM or cut off source of the gas trachea structure and be connected with sleeve pipe flexible, movement relation is more reasonable than the sleeve structure of prior art, doctor is made to be difficult to encounter in operation process, doing so avoids the danger of leaking gas in operation, improve safety coefficient.
Accompanying drawing explanation
Fig. 1 is the explosive view of present pre-ferred embodiments.
Fig. 2 is the front view of present pre-ferred embodiments when primary importance.
Fig. 3 is the schematic cross-section of present pre-ferred embodiments when primary importance.
Fig. 4 is the front view of present pre-ferred embodiments when the second position.
Fig. 5 is the schematic cross-section of present pre-ferred embodiments when the second position.
Detailed description of the invention
The invention provides a kind of sleeve pipe of perforator, as shown in Figure 1, comprise for shown in the main channel 10(Fig. 3 through puncturing lever or other mis instruments), the wall of described sleeve pipe 100 inwardly offers a groove 14, be provided with a cylinder 11 in described groove, described cylinder 11 comprises an air flue 12 be interconnected with described main channel 10.
Described cylinder 11 being arranged with one can relatively described cylinder 11 trachea 20 in axial sliding, shown in composition graphs 2 and Fig. 3, described trachea 20 UNICOM external air source (depending on going out), it comprises a gas passage 21, the internal diameter of described gas passage 21 equals the external diameter of described cylinder 11, and described like this trachea 20 can be set in outside described cylinder 11.
A gaseous core 22 is also provided with in described gas passage 21, described gaseous core 22 is fixed in described gas passage 21 by a connecting piece 23, described brace 23 offers through passage 24, the diameter of described gaseous core 22 equals the internal diameter of described cylinder 11, and described like this gaseous core 22 can stretch in described cylinder 11.Spline 25 is axially arranged with in the gas passage 21 of described trachea 20, accordingly, the outer wall of described cylinder 11 is axially arranged with gathering sill 13, so just can guarantees trachea 20 moving axially along described cylinder 11, described gaseous core 22, brace 23, trachea 20 are integrated to manufacture and are formed.
Described trachea 20 slides between primary importance and the second position, and when the primary importance of trachea 20 at sleeve pipe, as shown in Figures 2 and 3, described gaseous core 22 is inserted in the air flue 12 of described cylinder 11, cuts off the path of main channel 10 and source of the gas.Now, described trachea 20 forms first paragraph intussusception length with the mutual intussusception of cylinder 11.
When the second position of trachea 20 at sleeve pipe, as shown in Figure 4 and Figure 5, described gaseous core 22 shifts out outside the air flue 12 of described cylinder 11, the path of UNICOM main channel 10 and source of the gas, gas passes from the passage 24 of trachea 20, enter its gas passage 21, then by the air flue 12 of cylinder 11, enter in described main channel 10.Now, described trachea 20 forms second segment intussusception length with the mutual intussusception of cylinder 11.Described first paragraph intussusception length is greater than second segment intussusception length, and when sleeve pipe so just can be made to only have need to connect gas, trachea just can protrude from outside casing wall; When not needing to connect gas, trachea is hidden in sleeve pipe, or its far-end is closely attached on casing wall.Like this, entirety is comparatively attractive in appearance on the one hand, on the other hand doctor is used more convenient, also safer.Described gaseous core can be taper, and enter varying in size of the diameter of cylinder 11 according to taper gaseous core, can control the flow of gas, certainly, described gaseous core also can be that other are streamlined.
Be arranged on sleeve pipe, utilize gathering sill 13 structure, auxiliary stopper step etc., make trachea 20 only carry out axially-movable described trachea 20 relative sliding, also can manually pull-out or insertion from sleeve pipe.Be not described in detail in this.
Except the embodiment of trachea 20 described in this manual telescopic, the sleeve pipe 100 of preferred embodiment also comprises a knob 30 driving described trachea 20 to move axially.The internal diameter of the through hole 31 of described knob 30 equals the external diameter of described trachea 20, and namely knob 30 is sheathed on the outside of described trachea 20
Preferably, the outside of described trachea 20 is provided with a projection 26, is provided with female thread 32 in described knob 30, and described protruding 26 coordinate described female thread 32 interior and can slide along its helix in described female thread 32.Described knob 30 is provided with all groove 33, described sleeve pipe 100 offers an aperture 15, has a pin 40 through described aperture 15, and partly or entirely the submerging in described all grooves 33 of described pin 40.Like this, described knob 30 is fixed on described sleeve pipe to axial, only can rotate relative to described trachea 20.
When described knob 30 rotates, the effect of projection 26 and female thread 32, and the guiding of gathering sill 13, cause trachea 20 only to move axially, thus it is outer or hide with in sleeve body to make trachea protrude from sleeve body, and then realize the effect of ventilating or holding one's breath.This trachea can adapt to the modular connection of pneumoperitoneum apparatus, also can adapt to general hose joint.The structure that the driving trachea 20 of this preferred embodiment moves axially is more simple and convenient, is worthy to be popularized.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection scope of the present invention.
Claims (7)
1. one kind has the sleeve pipe of scalable trachea, comprise main channel (10), it is characterized in that: the wall of described sleeve pipe (100) inwardly offers a groove (14), a cylinder (11) is provided with in described groove, described cylinder (11) comprises an air flue (12) be interconnected with described main channel (10), described cylinder (11) being arranged with one can relatively described cylinder (11) trachea (20) in axial sliding, described trachea (20) connects extraneous source of the gas, described trachea (20) slides between primary importance and the second position
When the primary importance of trachea (20) at sleeve pipe, described trachea (20) and cylinder (11) mutually intussusception form first paragraph intussusception length, and the path of described trachea (20) cut-out main channel (10) and source of the gas;
When the second position of trachea (20) at sleeve pipe, described trachea (20) and cylinder (11) mutually intussusception form second segment intussusception length, and described first paragraph intussusception length is greater than second segment intussusception length, the path of UNICOM main channel (10) and source of the gas; Described trachea (20) comprises a gas passage (21), the internal diameter of described gas passage (21) equals the external diameter of described cylinder (11), a gaseous core (22) is also provided with in described gas passage (21), described gaseous core (22) is fixed in described gas passage (21) by a connecting piece (23), described brace (23) offers through passage (24), the diameter of described gaseous core (22) equals the internal diameter of described cylinder (11).
2. a kind of sleeve pipe with scalable trachea according to claim 1, it is characterized in that: when the primary importance of trachea (20) at sleeve pipe, described gaseous core (22) is inserted in the air flue (12) of described cylinder (11), cuts off the path of main channel (10) and source of the gas; When the second position of trachea (20) at sleeve pipe, described gaseous core (22) shifts out air flue (12) in described cylinder (11) outward, the path of UNICOM main channel (10) and source of the gas.
3. a kind of sleeve pipe with scalable trachea according to claim 1, it is characterized in that: in the gas passage (21) of described trachea (20), be axially arranged with spline (25), accordingly, the outer wall of described cylinder (11) is axially arranged with gathering sill (13).
4. any one according to claims 1 to 3 has the sleeve pipe of scalable trachea, it is characterized in that: the outside of described trachea (20) is arranged with the knob (30) that the described trachea of a driving (20) moves axially, the internal diameter of the through hole (31) of described knob (30) equals the external diameter of described trachea (20), and described knob (30) is fixed on described sleeve pipe to axial.
5. a kind of sleeve pipe with scalable trachea according to claim 4, it is characterized in that: the outside of described trachea (20) is provided with a projection (26), be provided with female thread (32) in described knob (30), described projection (26) is located in described female thread (32) and also can be slided along its helix in described female thread (32).
6. a kind of sleeve pipe with scalable trachea according to claim 4, it is characterized in that: described knob (30) is provided with all groove (33), described sleeve pipe (100) offers an aperture (15), there is a pin (40) through described aperture (15), and partly or entirely the submerging in described all grooves (33) of described pin (40).
7. a kind of sleeve pipe with scalable trachea according to claim 2, is characterized in that: described gaseous core (22) is taper, and its cone end face is to main channel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110402620.4A CN103142293B (en) | 2011-12-07 | 2011-12-07 | Bushing with retractable gas receiving pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110402620.4A CN103142293B (en) | 2011-12-07 | 2011-12-07 | Bushing with retractable gas receiving pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103142293A CN103142293A (en) | 2013-06-12 |
| CN103142293B true CN103142293B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110402620.4A Active CN103142293B (en) | 2011-12-07 | 2011-12-07 | Bushing with retractable gas receiving pipe |
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| CN (1) | CN103142293B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111920489B (en) * | 2020-08-06 | 2022-03-18 | 山东颐诺医疗科技有限公司 | Spirally-telescopic lower shell assembly for minimally invasive surgery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1754518A (en) * | 2003-09-30 | 2006-04-05 | 伊西康内外科公司 | Inconspicuous fitting stop cock valve for trocar assembly |
| CN201067573Y (en) * | 2007-08-16 | 2008-06-04 | 孙卫东 | Indwelling type heart-sac puncture needle |
| CN202409068U (en) * | 2011-12-07 | 2012-09-05 | 苏州天臣国际医疗科技有限公司 | Cannula with telescopic connecting air tube |
-
2011
- 2011-12-07 CN CN201110402620.4A patent/CN103142293B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1754518A (en) * | 2003-09-30 | 2006-04-05 | 伊西康内外科公司 | Inconspicuous fitting stop cock valve for trocar assembly |
| CN201067573Y (en) * | 2007-08-16 | 2008-06-04 | 孙卫东 | Indwelling type heart-sac puncture needle |
| CN202409068U (en) * | 2011-12-07 | 2012-09-05 | 苏州天臣国际医疗科技有限公司 | Cannula with telescopic connecting air tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103142293A (en) | 2013-06-12 |
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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215021 21a, phase 3, international science and Technology Park, 1355 Jinjihu Avenue, Suzhou Industrial Park, Jiangsu Province Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |