CN213312770U - Oval cross-section cannula suitable for minimally invasive cardiac surgery - Google Patents
Oval cross-section cannula suitable for minimally invasive cardiac surgery Download PDFInfo
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- CN213312770U CN213312770U CN202021590732.8U CN202021590732U CN213312770U CN 213312770 U CN213312770 U CN 213312770U CN 202021590732 U CN202021590732 U CN 202021590732U CN 213312770 U CN213312770 U CN 213312770U
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Abstract
The utility model discloses an oval cross-section intubate suitable for wicresoft heart surgery, including main intubate body and drainage tube, its structural feature is, and the cross-section of main intubate body is oval, and inherent spring coil on the main intubate body is equipped with the arc wall on the main intubate body and is located the arc passageway of the wall of main intubate body, forms oval after arc passageway and arc wall butt joint, the first half of spring coil match in the arc wall, the latter half embedding of spring coil is in the arc passageway, the front end of main intubate body is equipped with the intubate head, the overhead water conservancy diversion mouth that is equipped with the bar setting of intubate, the beneficial effects of the utility model are that: the cross-sectional shape through to main intubate body sets up to the ellipse, can reduce the demand to the aperture diameter to can be through the control to the volume of input gas, the blood flow speed in the main intubate body can be controlled.
Description
Technical Field
The utility model belongs to the cannula structure field, concretely relates to is an oval cross-section intubate for minimal access cardiac surgery operation.
Background
Cannulas have a wide range of applications in surgery, for example, in coronary surgery, venous and arterial cannulas for the transfer of blood between the body and a bypass device, cannulas for cardioplegia circulation and retrograde circulation, cannulas also for ventilation, drain and chest tube vacuum suction, these known cannulas typically having a configuration comprising a cannula body, the cannula body being circular in cross-section and having at least one lumen extending therethrough, the lumen being similarly circular in cross-section, and a recent trend in surgical operations is to minimize the size of the access opening formed in the thoracic cavity, including minimally invasive resection and cardiac surgery, in each step, the goal is to reduce the aperture of the chest wall, and one problem with achieving this is that the instrument cannula, etc. must pass through the size, geometry and space requirements of the reduced aperture.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an elliptical cross section intubate suitable for minimal access surgery that can effectively utilize the space in aperture and not produce adverse effect to the aperture.
For realizing the above-mentioned purpose, the utility model discloses a technical scheme be, an oval cross-section intubate suitable for wicresoft heart surgery, including main intubate body and drainage tube, its structural feature is, the cross-section of main intubate body is oval, and the inherent spring coil on the main intubate body is equipped with the arc wall on the main intubate body and is located the arc passageway of the wall of main intubate body, and arc passageway and arc wall form oval after the butt joint, the first half of spring coil match in the arc wall, the latter half embedding of spring coil is in the arc passageway, and the front end of main intubate body is equipped with the intubate head, the overhead water conservancy diversion mouth that is equipped with the bar setting of intubate.
Furthermore, an elastic expansion pad is arranged in the main cannula body and close to the cannula head.
Furthermore, an inflation channel which does not form an intersection point with the arc-shaped channel is arranged in the wall of the main cannula body.
Furthermore, the inflation channel extends along the axis direction of the main cannula body, and one end of the inflation channel, which is far away from the cannula head, is connected with a plug.
Furthermore, a pipe fitting butting sleeve is fixed at one end, far away from the cannula head, of the main cannula body, and the pipe fitting butting sleeve is in sealed splicing with the drainage tube.
Compared with the prior art, the beneficial effects of the utility model are that: the cross-sectional shape through to main intubate body sets up to the ellipse, can reduce the demand to the aperture diameter to can be through the control to the volume of input gas, the blood flow speed in the main intubate body can be controlled.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the main cannula body of the present invention;
FIG. 3 is a schematic cross-sectional view of the main cannula body of the present invention;
wherein, 1-main cannula body, 2-drainage tube, 3-spring ring, 4-arc groove, 5-arc channel, 6-cannula head, 7-diversion opening, 8-inflation channel, 9-expansion pad, 10-expansion pad, and 11-pipe fitting butt joint sleeve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 3, an oval cross-section cannula suitable for minimally invasive cardiac surgery comprises a main cannula body 1 and a drainage tube 2, wherein the cross section of the main cannula body 1 is oval, a spring ring 3 is fixed on the main cannula body 1, an arc-shaped groove 4 and an arc-shaped channel 5 positioned in the wall of the main cannula body 1 are arranged on the main cannula body 1, the arc-shaped channel 5 and the arc-shaped groove 4 are butted to form an oval shape, the upper half part of the spring ring 3 is matched in the arc-shaped groove 4, the lower half part of the spring ring 3 is embedded in the arc-shaped channel 5, a cannula head 6 is arranged at the front end of the main cannula body 1, a strip-shaped flow guide opening 7 is arranged on the cannula head 6, the structure is very suitable for being used as a venous cannula in cardiac surgery, and compared with a traditional chest opening, the size of a channel hole required to be formed on the chest of a patient is much smaller than that of the traditional median thoracotomy, therefore, complications and possible side effects caused by such a large wound are reduced, an inflation channel 8 which does not form an intersection point with the arc-shaped channel 5 is arranged in the wall of the main cannula body 1, a communication port is arranged between the inflation channel 8 and the inner wall of the main cannula body 1, an elastic expansion pad 9 which is arranged close to the cannula head 6 is arranged in the main cannula body 1, the communication port is covered by the expansion pad 9, the inflation channel 8 extends along the axial direction of the main cannula body 1, one end, far away from the cannula head 6, of the inflation channel 8 is connected with a sealing plug 10, during inflation, the amount of liquid which can flow in a pore channel in the main cannula body 1 is gradually reduced after the expansion pad 9 begins to expand along with continuous input of gas, the expansion pad 10 is made of elastic medical silica gel, so that the blood flow speed can be controlled, and a pipe fitting butting sleeve 11 is fixed at one end, far away from the cannula head 6, of the main cannula body 1, the pipe fitting butting sleeve 11 is in sealed insertion connection with the drainage pipe 2, and the drainage pipe 2 can be conveniently pulled out and inserted.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides an oval cross-section intubate suitable for minimal access surgery department, includes main intubate body and drainage tube, its characterized in that: the cross-section of main intubate body be oval, the inherent spring coil on the main intubate body, be equipped with the arc wall on the main intubate body and be located the arc passageway of the wall of main intubate body, form oval after arc passageway and arc wall butt joint, the first half of spring coil match in the arc wall, the latter half embedding of spring coil is in the arc passageway, the front end of main intubate body is equipped with the intubate head, the overhead water conservancy diversion mouth that is equipped with the bar setting of intubate.
2. An oval cross-section cannula suitable for minimally invasive cardiac surgery as defined in claim 1, wherein: the main cannula body is internally provided with an elastic expansion pad which is arranged close to the cannula head.
3. An oval cross-section cannula suitable for minimally invasive cardiac surgery as defined in claim 1, wherein: and an inflation channel which does not form an intersection point with the arc channel is arranged in the wall of the main cannula body.
4. An oval cross-section cannula suitable for minimally invasive cardiac surgery as defined in claim 3, wherein: the inflation channel extend along the axis direction of the main cannula body, and one end of the inflation channel, which is far away from the cannula head, is connected with a plug.
5. An oval cross-section cannula suitable for minimally invasive cardiac surgery as defined in claim 1, wherein: and a pipe fitting butting sleeve is fixed at one end of the main cannula body, which is far away from the cannula head, and the pipe fitting butting sleeve is in sealed splicing with the drainage tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021590732.8U CN213312770U (en) | 2020-08-04 | 2020-08-04 | Oval cross-section cannula suitable for minimally invasive cardiac surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021590732.8U CN213312770U (en) | 2020-08-04 | 2020-08-04 | Oval cross-section cannula suitable for minimally invasive cardiac surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213312770U true CN213312770U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021590732.8U Active CN213312770U (en) | 2020-08-04 | 2020-08-04 | Oval cross-section cannula suitable for minimally invasive cardiac surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213312770U (en) |
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2020
- 2020-08-04 CN CN202021590732.8U patent/CN213312770U/en active Active
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