Vacuum extractor
Technical field
The present invention relates to a kind of vacuum extractor, specifically, relate to a kind of convenience wound hydrops and sludged blood are carried out drain, and in the drain process, prevent that the negative pressure pair histoorgan that contacts with the attraction mouth from producing the vacuum extractor of damage.
Background technology
Existing vacuum extractor mainly is comprised of negative pressure source and suction catheter, suction catheter one end connects negative pressure source, its other end is removed all kinds of wound hydrops as attracting mouth to extend in the wound, because may contain some relatively large organize relic, pus piece or clots in the wound need to clear out, existing suction catheter is stopped up by these piece of tissue and clot easily, and after attracting mouth to be organized the organ sealing, high negative pressure may cause the mechanical damage of histoorgan.
Summary of the invention
For above deficiency, the invention provides a kind of convenience wound hydrops and sludged blood are carried out drain, and in the drain process, prevent that the negative pressure pair histoorgan that contacts with the attraction mouth from producing the vacuum extractor of damage, it comprises that intermediate formation has the suction catheter of runner, the up and down two ends of described runner are the opening setting, and an end of the runner of described suction catheter is connected with negative pressure source, and the other end of the runner of described suction catheter is provided with the guard that covers its opening fully.
Described guard is installed on the mount pad, and the intermediate formation of described mount pad has slide opening, and described suction catheter is inserted in the described slide opening, to slide along slide opening.
Be provided with connection strap between the suction side of described guard and suction catheter.
The exterior contour of described runner is horn-like, and its small end is towards negative pressure source one end.
The outer wall of described runner is provided with the helix projection.
Be provided with tube core in the runner of described suction catheter, the intermediate formation of described tube core has another runner, sealing towards an end that attracts mouth of described another runner, its other end is the opening setting, tube core is formed with at least one liquid drain hole that communicates with described another runner on the sidewall of an end of guard, the opening of another runner connects negative pressure source.
Be provided with tube core in the runner of described suction catheter, the intermediate formation of described tube core has another runner, sealing towards an end that attracts mouth of described another runner, its other end is the opening setting, tube core is formed with at least one and the liquid drain hole that described another runner communicates on the sidewall of an end of guard, the opening of another runner connects another negative pressure source.
The exterior contour of described tube core is stepped, and its small end is towards guard one end.
The outer wall of described tube core or the inwall of suction catheter are provided with another helix projection.
Be provided with connection strap between described guard and the tube core.
Beneficial effect of the present invention: a suction catheter attraction mouthful end of vacuum extractor of the present invention is provided with and covers the runner opening fully, and can advance with mount pad and open, return and the guard that tightens up with mount pad, in the drain process, the guard that opens is so that attract to have certain distance between mouth and the histoorgan wall, thereby avoid attracting a mouthful negative pressure to cause the histoorgan mechanical damage, utilize simultaneously guard can crush relatively large pus piece and sludged blood in the wound, so that sludged blood and hydrops can be got rid of along runner, before drain or after drain finishes, guard tightens up, can make suction catheter smoothly by less wound or breach, be convenient to carrying out of Minimally Invasive Surgery; In addition, the runner of suction catheter is horn-like, its small end is towards negative pressure source, the inwall of suction catheter is provided with the helix projection, attract thing in the process of flow passage, can to rotate along the inwall of suction catheter, by moulding, make things convenient for its drain to get rid of in the process of the tissue substance of some bulks and clot drain, avoid the tissue substance of bulk and clot to stop up runner; Also have, be provided with the perforated membrane tube core in the runner of suction catheter, the intermediate formation of tube core has another runner, attract thing in the process of rotating between the outer wall of the inwall of suction catheter and tube core, tissue substance and clot are got rid of along runner, and hydrops can remove along another runner separation panel of tube core, and, when tissue substance and clot excessive and when stopping up runner, can hydrops another runner separation panel along tube core be removed by the perforated membrane tube core, to reach the purpose of abundant removing hydrops.
Description of drawings
Fig. 1 is the structural representation (open configuration) of vacuum extractor of the present invention;
Fig. 2 is the structural representation (closure state) of vacuum extractor of the present invention;
Fig. 3 is the structural representation of the embodiment one of suction catheter of the present invention;
Fig. 4 is the structural representation of the embodiment two of suction catheter of the present invention;
Fig. 5 is the structural representation of the embodiment three of suction catheter of the present invention;
Fig. 6 is the structural representation of the embodiment four of suction catheter of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further set forth, wherein, direction of the present invention is take Fig. 1 as standard.
As depicted in figs. 1 and 2, vacuum extractor of the present invention comprises suction catheter 1, negative pressure source 2 and guard 3, the centre of suction catheter 1 is formed with runner 11 along its length direction, the up and down two ends of runner 11 all are the opening setting, one end (bottom) of the runner 11 of suction catheter connects negative pressure source 2, guard 3 is installed in the other end of suction catheter, and guard 3 covers the opening of the runner 11 of suction catheter fully.Wherein, the employing following proposal is paid the utmost attention in the installation of guard 3: guard 3 is installed on the mount pad 4, the intermediate formation of mount pad 4 has slide opening 41, suction catheter 1 is inserted in the slide opening 41, suction catheter 1 can slide up and down along slide opening 41, can also between the suction side of guard 3 and suction catheter 1, be provided with soft connection strap 5, come off in slide opening 41 to avoid suction catheter 1.
When carrying out the eliminating of wound hydrops, can be by mount pad 4 so that guard 3 be in closure state (receipts net state), then the suction side with suction catheter 1 extend in the wound, then utilize mount pad 4 so that guard 3 is in open configuration, when in finding wound, bulk sludged blood and pus piece being arranged, utilize relatively large sludged blood and pus piece in the guard 3 crushing wounds, restart negative pressure source.Like this, sludged blood after the crushing and pus piece can see through guard 3 and enter in the runner 11, so that sludged blood, pus piece and hydrops get rid of along runner, and, in the drain process, the guard 3 that opens is so that attract to have certain distance between mouth and the histoorgan wall, thereby avoid attracting a mouthful negative pressure to cause the histoorgan mechanical damage, before drain or after drain finished, guard 3 tightened up, can make suction catheter 1 smoothly by less wound or breach, be convenient to carrying out of Minimally Invasive Surgery.
Further, as shown in Figure 3 and Figure 4, the exterior contour of runner 11 of the present invention (inwall of suction catheter 1) is horn-like, and its small end is towards negative pressure source 2 one ends (lower end), and the inwall of suction catheter 1 is provided with helix projection 12.Like this, when removing drain, the attraction mouth (top) of suction catheter 1 is extend in the wound, open negative pressure source 2, drain (sludged blood, pus piece and hydrops) just can flow downward along runner 11, because runner 11 is horn-like, and the inwall of suction catheter 1 can also arrange helix projection 12, drain can be along runner 11 rotations in the process that flows, the sludged blood that some are relatively large and pus piece in the process of drain by moulding, make things convenient for its fully drain eliminating by runner 11, avoid the sludged blood of bulk and pus piece to stop up runner 11.
Further again, as shown in Figure 5 and Figure 6, the suction catheter 1 of vacuum extractor of the present invention can also adopt following proposal to realize: the exterior contour of the runner 11 of suction catheter 1 of the present invention (inwall of suction catheter 1) is horn-like, its small end is towards negative pressure source 2 one ends (lower end), a tube core 6 is set in that the runner 11 of suction catheter 1 is interior, tube core 6 adopts porous film material to make, the exterior contour of tube core 6 is arranged to stepped, its small end is towards the attraction mouth of suction catheter 1, the inwall of the outer wall of tube core 6 or suction catheter 1 arranges another helix projection 66, the intermediate formation of tube core 6 has another runner 61, the top of another runner 61 (attracting a mouthful end) sealing, its bottom is the opening setting, runner 11 and another runner 61 adopt the same axis core structure, the sidewall of tube core 6 upper ends is formed with at least one liquid drain hole 62 that communicates with another runner 61, and the bottom of another runner 61 connects negative pressure source 2 or directly connects another negative pressure source 21, is provided with connection strap 5 between guard 3 and the tube core 6.Like this, when removing drain, the attraction mouth (top) of suction catheter 1 is extend in the wound, open negative pressure source 2(or open simultaneously negative pressure source 2 and another negative pressure source 21), drain just can flow downward along runner 11, because the inwall (the perhaps outer wall of tube core 6) of suction catheter 1 is horn-like, and the outer wall of tube core 6 is provided with another helix projection 66, in the process that flows, drain can be along runner 11 rotations, attract thing in the process of rotating between the outer wall of the inwall of suction catheter 1 and tube core 6, sludged blood and pus piece are got rid of along runner 11, hydrops removes along another runner 61 separation panels of tube core 6, and, when sludged blood and pus piece excessive and when stopping up runner 11, can hydrops another runner 61 separation panels along tube core 6 be removed by the liquid drain hole 62 of perforated membrane tube core 6, to reach the purpose of abundant removing hydrops.
The above only is preferred embodiments of the present invention, the present invention is not limited to above-mentioned embodiment, in implementation process, may there be local small structural modification, if various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, and belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.