CN209695284U

CN209695284U - A kind of laparoscope hepatic portal occlusion tool

Info

Publication number: CN209695284U
Application number: CN201822115671.9U
Authority: CN
Inventors: 周东锴; 高炳强; 王伟林
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2019-11-29
Anticipated expiration: 2028-12-17

Abstract

The utility model provides a kind of laparoscope hepatic portal occlusion tool, it is made of casing, tie string, snak link, drag hook bar, snak link is arranged in cannula end, there are two can accommodate the duct that tie string passes through with snak link, pass through the fixed tie string of switch control spring on snak link, casing is inserted into when drag hook bar use, tie string head end forms lasso, catches on lasso by drag hook bar and one end of tie string is passed in and out casing.The utility model is designed reasonably, structure is simple, easy to operate, fixed.The degree of pressure of hepatic portal occlusion can be rapidly adjusted in vitro, repeatedly can be tied up or be loosened, and is small to the tissue damage at hepatic portal position, it can effective and safe ground vascular inflow occlusion blood vessel.

Description

A kind of laparoscope hepatic portal occlusion tool

Technical field

The utility model relates to medical instruments fields, and in particular to a kind of laparoscope hepatic portal occlusion tool.

Background technique

Hepatotomy operation is often related to the blocking of hepatic portal blood vessel, reduces going out in operation to reduce the blood supply of liver Blood volume.Traditional hepatotomy operation is carried out in a manner of abdomen by opening, and is generally ligatured with children's rubber urinary catheter to hepatic portal position, Or carry out clamp with hilus hepatis blocks pincerses, blocking need to reopen a period of time after a certain period of time in case hepatic ischemia/reperfusion injury too long, Completion, which is repeated several times, with this cuts liver process.In recent years, due to the advantages such as laparoscopic surgery is minimally invasive, post-operative recovery is fast, under laparoscope Operation on liver is carried out also more and more.But since the notch of laparoscopic surgery is small, traditional hilus hepatis blocks pincerses are difficult to enter Abdominal cavity, rubber urinary catheter also easily repeatedly can not be tied up and be loosened intraperitoneal.Therefore need one kind can be at present Tool convenient under laparoscope, that hepatic portal occlusion is effectively performed.

Summary of the invention

The utility model is above-mentioned in order to overcome the shortcomings of, a kind of laparoscope hepatic portal occlusion tool, the laparoscope hepatic portal occlusion Tool, it is easy to operate, the degree of pressure of hepatic portal occlusion can be rapidly adjusted in vitro, repeatedly can be tied up and be loosened, and is right The tissue damage at hepatic portal position is small, can effective vascular inflow occlusion blood vessel.

A kind of laparoscope hepatic portal occlusion tool provided by the utility model, it is by casing, tie string, snak link, drag hook bar Composition, snak link setting pass through opening on snak link there are two that can accommodate the duct that tie string passes through in cannula end, snak link Close the fixed tie string of control spring, when drag hook bar use is inserted into casing, and tie string head end forms lasso, catches on set by drag hook bar Circle disengaging casing.Casing is made of hard material, and is hollow tubular structure.

By having the rubber of certain elasticity to be made, a diameter of 0.5cm, head end forms circular the tie string Lasso, lasso are made of silk thread, diameter 0.05cm, and tie string tail end has rope pendant.

The head end of the drag hook bar forms back hook, and the buckle above back hook rotates upwardly and downwardly openable or closing back hook, The tail end of drag hook bar forms annulus.

The tool design of the utility model is reasonable, and structure is simple, easy to operate, can rapidly adjust hepatic portal occlusion in vitro Degree of pressure, repeatedly can tie up or loosen, and is small to the tissue damage at hepatic portal position, can effective and safe ground vascular inflow occlusion Blood vessel.

Specifically, the drag hook bar of the utility model is more very thin than conventional laparoscopic surgical clamp figure, back hook can be caught on The lasso of tie string, annulus can be entangled to pull operation, therefore can be not take up excessive casing space and can complete with finger Catch on and draw the function of tie string disengaging casing.Further, since casing space is not occupied excessively by drag hook bar, tie string is set It is thicker than the laparoscope bounding wire of certain patents on meter, and using having the rubber of certain elasticity to be made, it is led closer to traditional Urinary catheter, thus it is small to the tissue damage at hepatic portal position, it is not susceptible to incised injury, too loose or tension will not be strangled.Further, by It is thicker in tie string, it keeps out between casing and hepatic portal tissue, therefore complete hard material can be used without damage in casing Hepatic portal tissue is also not susceptible to the accident that casing folding is turned round.Cannula end forms snak link, and there are two can accommodate tie string with snak link Tie string can be loosened or be fixed to the duct passed through, opening or closing for duct, press its switch can rapidly realize loosen or Fixed tie string, it is easy to operate, it is fixed.

Detailed description of the invention

Fig. 1 is the overall structure diagram of utility model.

Status diagram when Fig. 2 is the blocking blood vessel of the utility model.

Fig. 3 is the top view of the snak link of the utility model cannula end.

Fig. 4 is the A-A cross-sectional view of the snak link of the utility model cannula end.

Specific embodiment

The utility model is further described in conjunction with the accompanying drawings and embodiments.

Embodiment 1

Referring to figs. 1 to 4, a kind of laparoscope hepatic portal occlusion tool, by casing 1, tie string 2, snak link 3,4 groups of drag hook bar At the setting of snak link 3 is in 1 tail end of casing, and snak link 3 is there are two that can accommodate the duct that tie string 2 passes through, by snak link 3 Switch 9 control the fixed tie string 2 of spring 10, spring 10 compresses if pinning switch 9, duct unlatching (as shown in Fig. 3 Fig. 4), Tie string 2 is unclamped, can be twitched up and down, then spring 10 pops up trip switch 9, and (as shown in Figure 1) is closed in duct, and tie string 2 is fixed. Casing 1 is inserted into when drag hook bar 4 uses, 2 head end of tie string forms lasso 5, catches on lasso 5 by drag hook bar 4 and passes in and out casing 1.

Casing 1 is made of hard material, and is hollow tubular structure.

For tie string 2 by having the rubber of certain elasticity to be made, a diameter of 0.5cm, head end forms circular lasso 5, lasso 5 is made of silk thread, diameter 0.05cm, and 2 tail end of tie string has a rope to fall 6, and tie string 2 can be prevented from snak link 3 Duct deviate from (as shown in Figure 1).

The head end of the drag hook bar 4 forms back hook 7, and the button 11 of 7 top of back hook is rotated upwardly and downwardly openable or closed The tail end of back hook 7, drag hook bar 4 forms annulus 8.Back hook 7 can catch on the lasso 5 of tie string 2, can draw tie string 2 forward or to After move, and be not easy (as shown in Figure 1), annulus 8 can be entangled with finger convenient for drawing operation.

Embodiment 2

When laparoscopic surgery, several handle holes can be generally held on the body of patient, insertion Trocar pipe, is used on handle hole To be put into surgical instrument.When the utility model is used, casing 1 is first inserted into Trocar pipe, presses snak link switch 9, makes duct It opens, the head end of tie string 2 is passed through to a duct (referring to Fig. 3) of snak link 3, abdominal cavity is entered by casing 1.Tie string 2 Around (this process can be with surgical clamp in other Trocar pipe auxiliary operations) below the hepatic portal blood vessel for needing to block.Drag hook bar 4 enter abdominal cavity by another duct of snak link 3, and 5 (such as Fig. 1 of lasso of 2 head end of tie string is caught on the back hook 7 of drag hook bar It is shown), another duct that traction tie string 2 wears back snak link 3 returns to external (as shown in Figure 2).In vitro, by tie string 2 Head end and tail end be pulled outwardly, while casing 1 being pushed away to internal direction, casing 1 and tie string 2 just entangle and tighten blood vessel at this time 12, finally unclamp again the switch 9 of snak link, the both ends (as shown in Figure 2) of fixed tie string 2.If you need to blood vessel of loosening, need to only press It firmly loosens after the switch 9 of snak link tie string 2.

Claims

1. a kind of laparoscope hepatic portal occlusion tool, which is characterized in that by casing (1), tie string (2), snak link (3), drag hook bar (4) it forming, in casing (1) tail end, there are two snak links (3) can accommodate the duct that tie string (2) passes through for snak link (3) setting, It is fixed tie string (2) by switch (9) control spring (10) on snak link (3), it is inserted into casing (1) when drag hook bar (4) uses, Tie string (2) head end forms lasso (5), catches on lasso (5) disengaging casing (1) by drag hook bar (4).

2. a kind of laparoscope hepatic portal occlusion tool according to claim 1, which is characterized in that the casing (1) is by hard Material is made, and is hollow tubular structure.

3. a kind of laparoscope hepatic portal occlusion tool according to claim 1, which is characterized in that tie string (2) is by with bullet Property rubber be made, a diameter of 0.5cm, head end forms circular lasso (5), and lasso (5) is made of silk thread, and diameter is 0.05cm, tie string (2) tail end have a rope to fall (6).

4. a kind of laparoscope hepatic portal occlusion tool according to claim 1, which is characterized in that the drag hook bar (4) Head end forms back hook (7), and back hook (7) is equipped with button (11), rotates upwardly and downwardly completion and turns on or off back hook (7), drag hook bar (4) Tail end formed annulus (8).