CN211300167U

CN211300167U - Hepatic portal blood vessel blocking device

Info

Publication number: CN211300167U
Application number: CN201922435995.5U
Authority: CN
Inventors: 孙冬林; 孙晗; 陈学敏; 蔡辉华; 段云飞; 陈晶; 施龙青; 陈卫波; 邬迪
Original assignee: First Peoples Hospital of Changzhou
Current assignee: First Peoples Hospital of Changzhou
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-21
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a hepatic portal blood vessel blocker, outer barrel has, the inner bag, the area of hindering, spring and stop gear, the one end fixed connection in area of hindering is on outer barrel, two first line holes that have mutual disposition on the section of thick bamboo wall of outer barrel, the one end dress of inner bag is in outer barrel, the spring dress is in outer barrel, the both ends of spring offset with the bottom of inner bag and the bottom of outer barrel respectively, it can be corresponding or the free second line hole mutually with two first line holes to have on the inner bag, reciprocating motion about the inner bag can be in outer barrel, and first line hole link up mutually with the second line hole when reciprocating motion arrives a certain position, stop gear can prevent that the inner bag from deviating from outer barrel. The utility model discloses easy threading just need not use the vacuum aspiration ware, can not obstruct the sight and influence the operation, easy operation uses hepatic portal blood vessel blocker to carry out hepatic portal blood vessel blocking in laparoscopic liver operation moreover and can also obviously shorten the operation time.

Description

Hepatic portal blood vessel blocking device

Technical Field

The utility model belongs to the technical field of medical equipment, concretely relates to hepatic portal blood vessel blocker.

Background

Liver surgery has always been a high-difficulty operation in general surgery, and nowadays, liver surgery technology is rapidly developed, and the previous surgery contraindication or relative contraindication becomes the current surgery indication. An important step in liver surgery is the hepatic portal vascular occlusion, which aims to better reduce the blood flow into the liver, control the intraoperative hemorrhage and provide a clearer visual field for the operator. In the conventional open surgery, it seems not difficult to control the hepatic blood flow, however, with the development of laparoscopic techniques, although many liver surgeries can be performed under a complete laparoscope, the existing laparoscopic portal blood vessel occlusion is generally to pass a blocking band around the portal blood vessel under the laparoscope, pull the two ends of the blocking band out of the body through the puncture hole on the abdominal wall, then pass the two ends of the blocking band through the central through hole of a long hollow tube, then pass one end of the hollow tube downwards through the puncture hole into the abdominal cavity to compress the portal blood vessel, clamp the blocking band with vascular clamps at the position where the other end of the hollow tube outside the abdominal cavity is tightly attached to the hollow tube after compression, to prevent the loosening of the blocking band, and when the portal occlusion is removed, generally by loosening the vascular clamps outside the abdominal cavity, then withdraw the hollow tube a little towards the abdominal cavity along the blocking band to remove the portal occlusion, therefore, in the actual operation process, the hollow tube needs to extend into the abdominal cavity from the outside of the abdominal cavity and abut against the blood vessel, and the abdominal cavity needs to be inflated to ensure the operation space when the abdominal cavity operation is performed, so that the length of the hollow tube is very long and generally exceeds 10 cm, which causes that the soft blocking belt is difficult to directly pass through the very long hollow tube, namely threading is difficult, the blocking belt needs to be sucked by a negative pressure suction apparatus to pass through, and the time of several minutes is consumed; meanwhile, when the operation is performed in the abdominal cavity, the sight is obstructed and the operation is influenced due to the existence of the long hollow tube; in addition, because the hollow tube is generally made of hard materials such as metal and the like, in order to avoid damaging the blood vessel when the end part of the hollow tube props against the blood vessel in the process of tightening the blocking belt, the end part of the hollow tube needs to be temporarily assembled with a rubber head which is not easy to fall off during an operation, so that the operation is troublesome; furthermore, the time for performing the hepatic portal vessel occlusion operation using the hollow tube in the laparoscopic liver operation is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an easy threading and need not use the vacuum aspiration ware for laparoscopic liver operation, can not obstruct the sight and influence the operation, easy operation can also obviously shorten the hepatic portal blood vessel blocker of operation time during the use.

In order to realize the purpose, the technical scheme of the utility model is that: in a portal blood vessel blocking device, the improvement comprising: the anti-dropping device is provided with an outer cylinder body, an inner container, an anti-dropping belt, a spring and a limiting mechanism, wherein one end of the anti-dropping belt is fixedly connected to the outer cylinder body, two first wire holes which are oppositely arranged are formed in the cylinder wall of the outer cylinder body, one end of the inner container is arranged in the outer cylinder body, the spring is arranged in the outer cylinder body, two ends of the spring are respectively abutted against the bottom of the inner container and the bottom of the outer cylinder body, second wire holes which correspond to or are free from the two first wire holes are formed in the inner container, the inner container can reciprocate up and down in the outer cylinder body, the first wire holes and the second wire holes are communicated when the inner container reciprocates to a certain position, and the limiting mechanism can prevent the inner container from dropping out of the outer cylinder body.

In the technical scheme, the limiting mechanism comprises an anti-drop screw, an anti-drop hole at the bottom of the inner container and an anti-drop seam allowance at the hole opening of the anti-drop hole, the anti-drop screw penetrates through the anti-drop hole, one end of the anti-drop screw is a cap, the other end of the anti-drop screw is fixedly connected with the bottom of the outer barrel, and when the inner container reciprocates up and down, the cap of the anti-drop screw can abut against or be separated from the anti-drop seam allowance.

In the technical scheme, the limiting mechanism comprises a limiting spigot formed by a necking at the upper part of the outer cylinder body and a positioning boss positioned at the periphery of the lower part of the inner container, the positioning boss is arranged at the inner side of the limiting spigot, and the outer edge of the lower part of the inner container is provided with an installation slope.

In the technical scheme, the outer part of the other end of the blocking belt is provided with a hard glue layer, and the hard glue layer is provided with the anti-skid protrusions.

In the technical scheme, the periphery of the lower part of the inner container is provided with a positioning boss, the inner wall surface of the outer cylinder body is provided with a positioning groove corresponding to the positioning boss, and the positioning boss is in sliding fit with the positioning groove.

In the technical scheme, the upper peripheral wall of the inner container is provided with a positioning step.

In the above technical solution, the upper peripheral wall of the outer cylinder has a first forceps hole, the upper peripheral wall of the inner container has a second forceps hole, and the first forceps hole and the second forceps hole are arranged in a vertical opposite manner.

In the technical scheme, the outer wall surface of the outer cylinder body is provided with the anti-skid ribs.

In the above technical solution, the orifice of the first thread hole has a threading slope.

The utility model has the advantages that: the utility model discloses a hepatic portal blood vessel blocker that above-mentioned technical scheme obtained, through the cooperation of the second line hole on first line hole on the outer barrel and the inner bag, when compressing tightly and loosening the inner bag, can fix and relax blocking the area, the threading is more convenient on the one hand, and the step is retrencied, and on the other hand when the operation is carried out a period and need temporarily open vascular backward flow blood, only need compress tightly after the inner bag relax and block the area can. In the specific operation, because the diameter of the hepatic portal blood vessel blocker is smaller and the length of the thread hole is about 1 cm, the blocking belt can be directly clamped by a forceps to rapidly pass through the thread hole of the hepatic portal blood vessel blocker within a few seconds, so that the threading is easy and a negative pressure aspirator is not needed; meanwhile, the whole hepatic portal vessel blocker is shorter, generally about 2 cm, so that the sight is not obstructed to influence the operation in use; in addition, because the side surface of the whole hepatic portal blood vessel blocker is abutted against the blood vessel when the blocking belt is tightened, the contact area with the blood vessel is large, the blood vessel is not easy to be damaged, and the complicated operation that a rubber head needs to be temporarily assembled during an operation is avoided, so the operation is simple; moreover, the use of the portal blood vessel blocker for portal blood vessel blocking in laparoscopic liver surgery also significantly shortens the operation time.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the implementation will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a schematic left side view of FIG. 1;

FIG. 4 is a schematic sectional view A-A of FIG. 2;

fig. 5 is a schematic view of the usage state of the present invention;

FIG. 6 is a schematic view of the tightened state of FIG. 5;

FIG. 7 is a schematic cross-sectional view B-B of FIG. 1 with the blocker tape removed;

fig. 8 is a schematic front view of the outer cylinder of the present invention;

FIG. 9 is a schematic top view of FIG. 8;

FIG. 10 is a schematic front view of the inner container of the present invention;

FIG. 11 is a schematic top view of FIG. 10;

FIG. 12 is a schematic bottom view of FIG. 10;

fig. 13 is a schematic cross-sectional view of another embodiment of the present invention;

fig. 14 is a schematic view of the mounting state of fig. 13.

Icon: 100-outer cylinder; 110-a first wire hole; 111-threading slope; 120-first surgical forceps hole; 130-anti-slip ribs; 200-inner container; 210-a second wire hole; 220-anti-drop hole; 221-anti-drop seam allowance; 230-mounting a slope; 240-positioning step; 250-second forceps hole; 300-blocking the belt; 310-hard glue layer; 400-a spring; 500-a limiting mechanism; 510-anti-drop screw; 520-limit seam allowance; 610-positioning a boss; 620-positioning groove; 700-hepatic portal blood vessel.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 14, a hepatic portal blood vessel blocking device comprises an outer cylinder 100, an inner container 200, a blocking belt 300, a spring 400 and a limiting mechanism 500, wherein one end of the blocking belt 300 is fixedly connected to the outer cylinder 100, the wall of the outer cylinder 100 is provided with two first line holes 110 which are oppositely arranged, one end of the inner container 200 is arranged in the outer cylinder 100, the spring 400 is arranged in the outer cylinder 100, two ends of the spring 400 are respectively abutted against the bottom of the inner container 200 and the bottom of the outer cylinder 100, the inner container 200 is provided with a second line hole 210 which can be corresponding to or free from the two first line holes 110, the inner container 200 can reciprocate up and down in the outer cylinder 100, and when the inner container reciprocates to a certain position, the first line hole 110 is communicated with the second line hole 210, and the limiting mechanism 500 can prevent the inner container 200 from falling out of the outer cylinder 100.

As shown in fig. 1 to 7, the limiting mechanism 500 includes an anti-separation screw 510, an anti-separation hole 220 at the bottom of the inner container 200, and an anti-separation seam allowance 221 at the seam of the anti-separation hole 220, the anti-separation screw 510 passes through the anti-separation hole 220, one end of the anti-separation screw 510 is a cap, and the other end is fixedly connected to the bottom of the outer cylinder 100, and when the inner container 200 reciprocates up and down, the cap of the anti-separation screw 510 can abut against or separate from the anti-separation seam allowance 221.

As shown in fig. 4, 5 and 6, the other end, i.e., the free end, of the blocking tape 300 is externally provided with a hard glue layer 310, and the hard glue layer 310 is provided with a non-slip protrusion. The hard adhesive layer 310 facilitates the insertion of the blocking band 300 into the first string hole 110 and the second string hole 210, and the anti-slip protrusions enable the surgical forceps to more stably grip the blocking band 300.

As shown in fig. 7, 9, 10 and 12, a positioning boss 610 is provided on the periphery of the lower portion of the inner container 200, a positioning groove 620 corresponding to the positioning boss 610 is provided on the inner wall surface of the outer cylinder 100, and the positioning boss 610 is in sliding fit with the positioning groove 620.

As shown in fig. 1, 3, 4, 6 and 10, the inner container 200 has a positioning step 240 on the upper peripheral wall thereof. The first and

second wire holes

110 and 210 are in an optimal through position when the positioning step 240 abuts against the upper portion of the outer cylinder 100.

As shown in fig. 1, 3 to 8 and 10, the outer cylinder 100 has a first forceps hole 120 on the upper peripheral wall thereof, the inner tube 200 has a second forceps hole 250 on the upper peripheral wall thereof, the first forceps hole 120 and the second forceps hole 250 are arranged in a vertical direction, and when the blocking band 300 is inserted and pulled, the first forceps hole 120 and the second forceps hole 250 are inserted into the two ends of the forceps respectively, or clamped between the outer end of the inner tube 200 and the bottom end of the outer cylinder 100 to apply a clamping force, and then the forceps are pressed to compress the spring 400, so that the first wire hole 110 and the second wire hole 210 are positioned at an optimal penetration position.

The utility model is used for putting the blocker into the abdominal cavity through the troca hole, then adopting two grasping forceps to operate alternatively, the grasping forceps a grasps the outer cylinder 100, the two ends of the grasping forceps b are respectively inserted into the first surgical forceps hole 120 and the second surgical forceps hole 250, or respectively clamped at the outer end of the inner container 200 and the bottom end of the outer cylinder 100 and exert clamping force, the spring 400 is compressed, the first wire hole 110 and the second wire hole 210 are communicated, then the grasping forceps a loosens the outer cylinder 100, the non-fixed end, namely the free end of the blocking belt 300 is grasped to bypass from the outer blood vessel 700 of the porta hepatis, then the free end of the blocking belt 300 is grasped first and is rapidly inserted in sequence and passes through the first wire hole 110 of the outer cylinder 100 and the second wire hole 210 of the inner container 200, after passing, the free end of the blocking belt 300 is grasped again to be pulled towards the direction far away from the blood vessel of the porta hepatis, meanwhile, the blocker is pushed to the blood vessel of the porta hepatis, the blocking belt 300 is tightened, thus, the hepatic portal blood vessel 700 blocking is completed. If the occlusion needs to be released, the grasping forceps a grasp the outer cylinder 100, and the two ends of the grasping forceps b are respectively inserted into the first forceps hole 120 and the second forceps hole 250, or respectively grasp the outer end of the inner container 200 and the bottom end of the outer cylinder 100 and apply clamping force, the spring 400 is compressed, so that the first thread hole 110 and the second thread hole 210 are communicated, and then the grasping forceps a withdraw the occlusion band 300 from the first thread hole 110 and the second thread hole 210 to the direction of the hepatic portal blood vessel for a certain distance, so that the occlusion band 300 does not press the blood vessel any more, and the blood vessel recovers blood supply. When the occluder needs to be taken out after the operation, the occluder 300 still winds around the blood vessel, so the grasper a needs to be used for grasping the outer cylinder 100 again, the two ends of the grasper b are respectively inserted into the first forceps hole 120 and the second forceps hole 250, or the outer end of the inner container 200 and the bottom end of the outer cylinder 100 are respectively grasped and clamping force is applied, the spring 400 is compressed, the first thread hole 110 and the second thread hole 210 are communicated, the occluder 300 clamped in the first thread hole 110 and the second thread hole 210 can be completely drawn out towards the direction of the hepatic portal blood vessel by the grasper a, then the occluder 300 is drawn out to avoid winding the blood vessel, and at the moment, the hepatic portal blood vessel occluder can be directly taken out from a troca hole of the operation through the forceps. Of course, when the occluder needs to be removed after the operation is finished, any one of the portions of the occluder 300 located between the occluder and the hepatic vessel (but not both of them can be cut off at the same time) may be cut off directly, and at this time, the occluder 300 is not wound around the vessel, so that the occluder 300 and the hepatic vessel occluder can be removed directly from the troca hole of the operation by forceps. Moreover, the use of the hepatic portal vessel blocker for hepatic portal vessel blocking in laparoscopic liver surgery can also significantly reduce the operation time compared to the use of a hollow tube.

Example two:

As shown in fig. 13 and 14, the stopper mechanism 500 includes a stopper 520 formed by necking the upper portion of the outer cylinder 100 and a positioning boss 610 located on the lower periphery of the inner container 200, the positioning boss 610 is fitted inside the stopper 520, and the lower outer edge of the inner container 200 has a mounting slope 230.

As shown in fig. 4, 5 and 6, the other end, i.e. the free end, of the blocking strap 300 is provided with a hard adhesive layer 310, and the hard adhesive layer 310 is provided with anti-slip protrusions, the hard adhesive layer 310 facilitates the blocking strap 300 to be inserted into the first thread hole 110, and the anti-slip protrusions enable the surgical forceps to clamp the blocking strap 300 more stably.

As shown in fig. 13 and 14, a positioning boss 610 is provided on the periphery of the lower portion of the inner container 200, a positioning groove 620 corresponding to the positioning boss 610 is provided on the inner wall surface of the outer cylinder 100, and the positioning boss 610 is in sliding fit with the positioning groove 620. The positioning boss 610 and the positioning groove 620 can prevent the first wire hole 110 and the second wire hole 210 from being positioned in a non-corresponding manner due to the axial rotation of the inner container 200 in the outer cylinder 100.

As shown in fig. 13 and 14, the inner container 200 has a positioning step 240 on the upper peripheral wall thereof, and the first wire hole 110 and the second wire hole 210 are located at the optimal penetration position when the positioning step 240 abuts against the upper portion of the outer cylinder 100.

As shown in fig. 13 and 14, the outer tube 100 has a first forceps hole 120 on the upper peripheral wall thereof, the inner tube 200 has a second forceps hole 250 on the upper peripheral wall thereof, the first forceps hole 120 and the second forceps hole 250 are arranged in a vertically opposite manner, and when the blocking band 300 is required to be inserted and pulled, both ends of the forceps are inserted into the first forceps hole 120 and the second forceps hole 250, respectively, or clamped between the outer end of the inner tube 200 and the bottom end of the outer tube 100, respectively, and a clamping force is applied thereto, and then the forceps are pressed to compress the spring 400, so that the first wire hole 110 and the second wire hole 210 can be positioned at an optimal penetration position.

The utility model discloses put into the abdominal cavity through troca hole at first the blocker when using, then adopt two nipper alternate operation, nipper a grabs outer barrel 100, two of nipper b insert first operation pincers hole 120 and second operation pincers hole 250 respectively, or press from both sides respectively in the outer end of inner bag 200 and the bottom of outer barrel 100 and exert the clamp force, compress spring 400, make first wire hole 110 and second wire hole 210 link up, then nipper a loosens outer barrel 100, the non-fixed end that grasps the area of blocking 300 also is the free end and walks around from the blood vessel of the hepatic portal 700, then grasp the non-fixed end that blocks 300 and also is the free end and insert rapidly in proper order and pass first wire hole 110 of outer barrel 100 and the second wire hole 210 of inner bag 200, grasp the free end that blocks 300 again after passing and pull to keeping away from the blood vessel of the hepatic portal, push the blocker to the blood vessel of the hepatic portal simultaneously and tighten up area 300 to a suitable degree and loosen nipper b, thus, the hepatic portal blood vessel 700 is completely blocked, if the blocking is required to be released, the grasping forceps a is used for grasping the outer cylinder 100, the two ends of the grasping forceps b are respectively inserted into the first surgical forceps hole 120 and the second surgical forceps hole 250, or the two ends of the grasping forceps b are respectively grasped at the outer end of the inner container 200 and the bottom end of the outer cylinder 100 and are applied with clamping force, the spring 400 is compressed, the first line hole 110 and the second line hole 210 are communicated, and then the grasping forceps a is used for withdrawing the blocking belt 300 from the first line hole 110 and the second line hole 210 to the hepatic portal blood vessel direction for a certain distance, so that the blocking belt 300 does not press the blood vessel any more, and the blood vessel recovers blood supply. When the occluder needs to be taken out after the operation, the occluder 300 still winds around the blood vessel, so the grasper a needs to be used for grasping the outer cylinder 100 again, the two ends of the grasper b are respectively inserted into the first forceps hole 120 and the second forceps hole 250, or the outer end of the inner container 200 and the bottom end of the outer cylinder 100 are respectively grasped and clamping force is applied, the spring 400 is compressed, the first thread hole 110 and the second thread hole 210 are communicated, the occluder 300 clamped in the first thread hole 110 and the second thread hole 210 can be completely drawn out towards the direction of the hepatic portal blood vessel by the grasper a, then the occluder 300 is drawn out to avoid winding the blood vessel, and at the moment, the hepatic portal blood vessel occluder can be directly taken out from a troca hole of the operation through the forceps. Of course, when the occluder needs to be removed after the operation is finished, any one of the portions of the occluder 300 located between the occluder and the hepatic vessel (but not both of them can be cut off at the same time) may be cut off directly, and at this time, the occluder 300 is not wound around the vessel, so that the occluder 300 and the hepatic vessel occluder can be removed directly from the troca hole of the operation by forceps. Moreover, the use of the hepatic portal vessel blocker for hepatic portal vessel blocking in laparoscopic liver surgery can also significantly reduce the operation time compared to the use of a hollow tube.

Example three:

as shown in fig. 1 to 14, a hepatic portal blood vessel blocking device comprises an outer cylinder 100, an inner container 200, a blocking belt 300, a spring 400 and a limiting mechanism 500, wherein one end of the blocking belt 300 is fixedly connected to the outer cylinder 100, two first line holes 110 are oppositely arranged on the cylinder wall of the outer cylinder 100, one end of the inner container 200 is arranged in the outer cylinder 100, the spring 400 is arranged in the outer cylinder 100, two ends of the spring 400 are respectively abutted against the bottom of the inner container 200 and the bottom of the outer cylinder 100, the inner container 200 is provided with a second line hole 210 which can be corresponding to or free from the two first line holes 110, the inner container 200 can reciprocate up and down in the outer cylinder 100, and when the inner container reciprocates to a certain position, the first line hole 110 is communicated with the second line hole 210, and the limiting mechanism 500 can prevent the inner container 200 from falling out of the outer cylinder 100.

As shown in FIGS. 8 and 14, the outer wall of the outer cylinder 100 is provided with anti-slip ribs 130 to facilitate the operation of threading the outer cylinder 100 by holding the forceps.

As shown in fig. 4, 5, 6, the aperture of the first wire aperture 110 has a threading ramp 111, and it is easier to thread the blocking tape 300 into the first wire aperture 110 during surgery due to the presence of the threading ramp 111.

The utility model discloses when using earlier get into the abdominal cavity through troca hole with the blocker, then adopt two nipper alternate operation, nipper a grabs outer barrel 100, two of nipper b insert first operation pincers hole 120 and second operation pincers hole 250 respectively, or press from both sides respectively in the outer end of inner bag 200 and the bottom of outer barrel 100 and exert the clamp force, compress spring 400, make first wire hole 110 and second wire hole 210 link up, then nipper a loosens outer barrel 100, the non-fixed end that grasps the area of blocking 300 also is the free end and walks around from the blood vessel of the hepatic portal 700, then grasp the non-fixed end that blocks 300 of area promptly and insert in proper order promptly and pass first wire hole 110 of outer barrel 100 and the second wire hole 210 of inner bag 200 earlier, grasp the free end that blocks 300 of area again after passing and draw to the direction of keeping away from the blood vessel of the hepatic portal, push the blocker to the blood vessel of the hepatic portal simultaneously and tighten up area 300 to a suitable degree and loosen nipper b, thus, the hepatic portal blood vessel 700 is completely blocked, if the blocking is required to be released, the grasping forceps a grasps the outer cylinder 100, the two ends of the grasping forceps b are respectively inserted into the first surgical forceps hole 120 and the second surgical forceps hole 250, or grasps the outer end of the inner container 200 and the bottom end of the outer cylinder 100 and applies a clamping force, the spring 400 is compressed to penetrate the first wire hole 110 and the second wire hole 210, the grasping forceps a withdraws the blocking band 300 from the first wire hole 110 and the second wire hole 210 to the hepatic portal blood vessel direction for a certain distance, so that the blocking band 300 does not press the blood vessel any more, the blood vessel recovers the blood supply, when the extractor is required after the operation, the grasping forceps a grasps the outer cylinder 100 again because the blocking band 300 is still wound on the blood vessel, the two ends of the grasping forceps b are respectively inserted into the first surgical forceps hole 120 and the second surgical forceps hole 250, or grasps the outer end of the inner container 200 and the bottom end of the outer cylinder 100 and applies a clamping force, the spring 400 is compressed to make the first thread hole 110 and the second thread hole 210 run through, namely the blocking belt 300 clamped in the first thread hole 110 and the second thread hole 210 can be completely drawn out towards the blood vessel of the porta hepatis by using the grasper a, then the blocking belt 300 is drawn out to avoid winding the blood vessel, and at the moment, the blood vessel blocking device of the porta hepatis can be directly taken out from the troca hole of the operation through the grasper. Of course, when the occluder needs to be removed after the operation is finished, any one of the portions of the occluder 300 located between the occluder and the hepatic vessel (but not both of them can be cut off at the same time) may be cut off directly, and at this time, the occluder 300 is not wound around the vessel, so that the occluder 300 and the hepatic vessel occluder can be removed directly from the troca hole of the operation by forceps. Moreover, the use of the hepatic portal vessel blocker for hepatic portal vessel blocking in laparoscopic liver surgery can also significantly reduce the operation time compared to the use of a hollow tube.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portal blood vessel blocker, characterized by: the anti-blocking barrel is provided with an outer barrel body (100), an inner container (200), a blocking belt (300), a spring (400) and a limiting mechanism (500), wherein one end of the blocking belt (300) is fixedly connected to the outer barrel body (100), the barrel wall of the outer barrel body (100) is provided with two first wire holes (110) which are oppositely arranged, one end of the inner container (200) is arranged in the outer barrel body (100), the spring (400) is arranged in the outer barrel body (100), two ends of the spring (400) are respectively propped against the bottom of the inner container (200) and the bottom of the outer barrel body (100), the inner container (200) is provided with a second wire hole (210) which can correspond to or be free from the two first wire holes (110), the inner container (200) can do up-and-down reciprocating motion in the outer barrel body (100), and when the inner container reciprocates to a certain position, the first wire hole (110) and the second wire hole (210) are communicated with each other, the limiting mechanism (500) can prevent the inner container (200) from being separated from the outer cylinder body (100).

2. The hepatic portal vessel blocker according to claim 1, wherein: stop gear (500) by anticreep screw (510), anticreep hole (220) of inner bag (200) bottom and anticreep tang (221) of the hole department of anticreep hole (220) constitute, anticreep screw (510) pass anticreep hole (220), the one end of anticreep screw (510) is the cap portion, the bottom fixed connection of the other end and outer barrel (100), works as when inner bag (200) is up-and-down motion, the cap portion of anticreep screw (510) can with anticreep tang (221) offset or break away from.

3. The hepatic portal vessel blocker according to claim 1, wherein: the limiting mechanism (500) is composed of a limiting spigot (520) formed by necking the upper part of the outer barrel (100) and a positioning boss (610) positioned on the periphery of the lower part of the inner container (200), the positioning boss (610) is arranged on the inner side of the limiting spigot (520), and an installation slope surface (230) is arranged on the outer edge of the lower part of the inner container (200).

4. The hepatic portal vessel blocker according to claim 1, wherein: the outer part of the other end of the blocking belt (300) is provided with a hard glue layer (310), and the hard glue layer (310) is provided with an anti-skid bulge.

5. The hepatic portal vessel blocker according to claim 2, wherein: the periphery of the lower portion of the inner container (200) is provided with a positioning boss (610), the inner wall surface of the outer cylinder body (100) is provided with a positioning groove (620) corresponding to the positioning boss (610), and the positioning boss (610) is in sliding fit with the positioning groove (620).

6. The hepatic portal vessel blocker according to claim 3, wherein: the periphery of the lower portion of the inner container (200) is provided with a positioning boss (610), the inner wall surface of the outer cylinder body (100) is provided with a positioning groove (620) corresponding to the positioning boss (610), and the positioning boss (610) is in sliding fit with the positioning groove (620).

7. The hepatic portal vessel blocker according to claim 1, 2 or 3, wherein: the upper peripheral wall of the inner container (200) is provided with a positioning step (240).

8. The hepatic portal vessel blocker according to claim 1, 2 or 3, wherein: the upper peripheral wall of the outer cylinder body (100) is provided with a first surgical clamp hole (120), the upper peripheral wall of the inner container (200) is provided with a second surgical clamp hole (250), and the first surgical clamp hole (120) and the second surgical clamp hole (250) are arranged in an up-down opposite mode.

9. The hepatic portal vessel blocker according to claim 1, wherein: and the outer wall surface of the outer cylinder body (100) is provided with an anti-slip rib (130).

10. The hepatic portal vessel blocker according to claim 1, wherein: the aperture of the first string hole (110) has a string slope (111).