CN208926480U - A kind of spiral fine adjustment type portal blood blocker - Google Patents
A kind of spiral fine adjustment type portal blood blocker Download PDFInfo
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- CN208926480U CN208926480U CN201721261256.3U CN201721261256U CN208926480U CN 208926480 U CN208926480 U CN 208926480U CN 201721261256 U CN201721261256 U CN 201721261256U CN 208926480 U CN208926480 U CN 208926480U
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- sliding
- sliding part
- wrap
- portal blood
- sliding groove
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Abstract
The utility model discloses a kind of spiral fine adjustment type portal blood blockers, including wrap, supporting element, locating part, sliding part and regulating part, and wherein wrap is flexible thread, tube, bar or ribbon；Supporting element, locating part, sliding part center be provided with aperture, passed through suitable for wrap；It is provided with the sliding groove matched with sliding part in locating part, is suitable for sliding part in sliding groove along linear slide, and the structure both when sliding part and sliding groove match cannots rotate relative to each other them；External thread section is additionally provided on sliding part, when sliding part is completely into sliding groove, at least portion with external threads section is outside locating part；Regulating part is provided centrally with through-hole, and through-hole wall is provided with internal screw thread, is suitable for connecting with sliding part external thread section.Portal blood blocker provided by the utility model has the characteristics that dynamics can be adjusted accurately, device is easy to operate and barrier effect is outstanding.
Description
Technical field
The utility model relates to a kind of portal blood blockers more particularly to a kind of device, and simple, vascular pressure can be accurate
The laparoscope portal blood blocker of adjusting.
Background technique
It is high that the extensive hepatectomy under the especially complete laparoscope of hepatectomy under laparoscope is still considered as difficulty Risks
Operation, have the certain death rate and complication rate.The main reason for this phenomenon occur is because of the surface of a wound during hepatectomy
Bleeding is difficult to control.In-degree sequence is the main method of control surface of a wound bleeding during hepatectomy, laparoscopic liver resection
In as use full pringle maneuver, surface of a wound bleeding in art can be reduced, but can cause remaining Ischemia-reperfusion Injury in Rat, gastrointestinal tract become silted up
The adverse reactions such as blood bring new wound to body while reducing amount of bleeding, run counter to the minimally invasive ancestor of laparoscopic surgery
Purport.
Hepatic portal is the important channel of liver, and hepatic blood supply is abundant, and portal vein and proper hepatic artery blood are through this inflow liver.
Proper hepatic artery, main portal vein, choledochus, lymph node, lymphatic vessel and liver neuropile are wrapped in ligamentum hepatoduodenale
In (hepatic pedicle).Before, the blocking of porta hepatis generallys use Pringle method, i.e., wraps liver 12 with catheter, silicone tube etc. and refer to
Intestines ligament one is fixed with haemostatic clamp clamp and has the function that vascular inflow occlusion blood flow to tensing after two weeks, but when clamp is fixed
Hepatic pedicle pressure is uneven, be easy to cause the damage of endangium, furthermore need to open primary, 5 points of interruption for every 10-15 minutes
Zhong Houke is blocked repeatedly, to complete disconnected liver process.Using catheter or silicone tube to hepatic portal position tie up operation in addition to
Except inconvenience, the dynamics tied up also is difficult to control, and too tight or too loose to can lead to barrier effect poor.In addition, in the prior art
Portal blood blocker there is also devices complicated, cumbersome defect.
Therefore, those skilled in the art is dedicated to developing what a kind of dynamics of tying up can be adjusted accurately, device, easy to operate
And portal blood blocker that barrier effect is outstanding.
Utility model content
In view of the above drawbacks of the prior art, the utility model provides a kind of portal blood blocker, including wrapping
Part, supporting element, locating part, sliding part and regulating part, wherein
The wrap is flexible thread, tube, bar or ribbon；
The supporting element, locating part, sliding part center be provided with aperture, passed through suitable for the wrap；
It is provided with the sliding groove matched with the sliding part in the locating part, is suitable for the sliding part in the sliding
Structure both along linear slide in slot, and when the sliding part and the sliding groove match turn them can not opposite
It is dynamic；
It is additionally provided with external thread section on the sliding part, when the sliding part is completely into the sliding groove, at least
Portion with external threads section is outside the locating part；
The regulating part is provided centrally with through-hole, and the through-hole wall is provided with internal screw thread, be suitable for outside the sliding part
Thread segment connection.
Further, the wrap is made of at least one of metal, rubber, latex, silica gel material.
Preferably, the wrap uses the structure of copper wire outer cladding emulsion layer.
Further, the wrap is long 30-60cm, the threadiness or tube of outer diameter 1-2mm.
Further, the supporting element center opening internal diameter is 3-6mm.
Further, the locating part center opening internal diameter is 3-6mm.
Further, the sliding part center opening internal diameter is 3-6mm.
Further, the supporting element is made of plastics, rubber.
Further, the length of the sliding part is 1.1-1.8 times of the sliding slot length.
Further, one end of the sliding part is set as retractable structure, to conveniently penetrate the wrap.
Further, the regulating part surface is provided with lubrication portion, for reducing the friction between regulating part and locating part
Power.The lubrication portion is preferably the high molecular material of solid paraffin, lubricating oil or low-friction coefficient.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a preferred embodiment of the utility model.
Fig. 2 is the working principle front view of bayonet in a preferred embodiment of the utility model.
Fig. 3 is the working principle side view in a preferred embodiment of the utility model under bayonet opening state.
Fig. 4 is the working principle side view in a preferred embodiment of the utility model under bayonet closed state.
Fig. 5 is the use state diagram of a preferred embodiment of the utility model.
Drawing reference numeral: 101 wrap, 102 support tubes, 103 locating parts, 104 sliding parts, 105 regulating parts, 106 apertures,
107 sliding grooves, 108 limiting slots, 109 thread segments, 110 screw threads, 111 bayonets.
Specific embodiment
As shown in Figure 1, the portal blood blocker in the present embodiment include wrap, supporting element, locating part, sliding part and
Regulating part, wherein supporting element, locating part and sliding part center are equipped with aperture, opening diameter 3-5mm, use in the present embodiment
4mm。
Wrap uses the structure of copper wire outer cladding emulsion layer, uses 1mm in copper wire diameter the present embodiment, rubber tube it is outer
Diameter uses 1.5mm, the long 30-60cm of wrap, and 60cm is used in the present embodiment, and the excellent mechanical property of copper wire ensure that wrap
Intensity and toughness, emulsion layer assigns its outer surface certain elasticity and toughness, guarantees difficult to slide when it is clamped by bayonet.
The usually long 10-25cm of supporting element, the transparent plastic hard tube of 20cm, outer diameter 5mm are used in the present embodiment, and internal diameter is
The diameter 4mm of aperture, be suitable for two wrap also cross.Certain hardness is for guaranteeing that it can bear the pulling force of wrap
And play supporting role to wrap and ligament or vascular site.
Locating part left end is aperture, and right end is provided with the sliding groove that length is 4cm, and sliding part straight line can be slided in sliding groove
It is dynamic, the structure of slot, the relative rotation to limit slippage slot and sliding part.
The a length of 5cm of sliding part in the present embodiment, right end are provided with the external thread section of 4.5cm long, external thread section outer diameter 1cm,
Sliding part right end also has retractable structure, i.e. bayonet.Regulating part is provided centrally with through-hole, through-hole diameter 1cm, axial length
For 1cm, through-hole wall is provided with internal screw thread, uses with the external thread section close-fitting on sliding part.
The structure and working principle of bayonet is as in Figure 2-4: when unused regulating part is fixed it can be seen from Fig. 3 and Fig. 4,
Bayonet is in the open state, and wrap can be free to slide along sliding part；When by external thread section compress and by regulating part threadingly
When screw-in, the bayonet of present position is closed.Between the upper and lower away from wrapping line outer diameter is slightly less than when bayonet closes, due to wrap surface
There is rubber tube cladding, when rubber tube is by bayonet pressure, deformation occurs, and frictional force increases, and wrap is along sliding part at this time
Sliding is locked, and the relative position of the two is fixed.
After being put into sliding groove by sliding part and slide to bottom, 104 length of sliding part is 1.25 times for sliding slot length, because
This, still has portion with external threads section exposed outside.
As shown in figure 5, the Porta hepatis blocker application method of the embodiment is as follows:
1. sequentially passing through support after wrap is surrounded the position for needing blocking blood flow using laparoscopic surgery device
Part, locating part, the aperture of sliding part and regulating part through-hole.
2. sliding part is slid into locating part bottom.At this point, sliding part bayonet, still in active state, wrap still can be certainly
By sliding.
3. slightly exerting oneself, after wrap is tightened, pressing bayonet closes sliding part bayonet, and wrap is stuck, at this point,
Regulating part is threadingly screwed on.
4. after regulating part is contacted with locating part, continuing rotation regulating part can pull out sliding part from locating part, due to packet
It is fixed with sliding part by bayonet around part, the movement of slide positions can lead to the variation of wrap tightness.
Therefore, the present apparatus can realize the accurate adjusting of wrap wrapping dynamics by rotating regulating part.
In addition, regulating part and locating part contact position are coated with solid paraffin layer, caused for preventing since frictional force is excessive
Regulating part and locating part between rotate it is locked.
The utility model can according to operation actual demand, realize block completely into hepatic blood flow, hepatic pedicle pressure it is continuous
The targets such as adjusting, improve the safety of operation, farthest mitigate the ischemical reperfusion injury to liver, the block device
Suitable for other blockings with blood flow base of a fruit organ operation (such as spleen, kidney).
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (8)
1. a kind of portal blood blocker, which is characterized in that including wrap, supporting element, locating part, sliding part and regulating part,
Wherein
The wrap is flexible thread, tube, bar or ribbon；
The supporting element, locating part, sliding part center be provided with aperture, passed through suitable for the wrap；
It is provided with the sliding groove matched with the sliding part in the locating part, is suitable for the sliding part in the sliding groove
Structure both along linear slide, and when the sliding part and the sliding groove match cannots rotate relative to each other them；
It is additionally provided with external thread section on the sliding part, when the sliding part is completely into the sliding groove, at least part
External thread section is outside the locating part；
The regulating part is provided centrally with through-hole, and the through-hole wall is provided with internal screw thread, is suitable for and the sliding part external screw thread
Section connection.
2. portal blood blocker as described in claim 1, which is characterized in that the wrap by metal, rubber, latex,
One of silica gel material is made.
3. portal blood blocker as described in claim 1, which is characterized in that the wrap is long 30-60cm, outer diameter 1-
The threadiness or tube of 2mm.
4. portal blood blocker as described in claim 1, which is characterized in that the opening diameter of the supporting element is 3-6mm.
5. portal blood blocker as described in claim 1, which is characterized in that the opening diameter of the locating part is 3-6mm.
6. portal blood blocker as described in claim 1, which is characterized in that the opening diameter of the sliding part is 3-6mm.
7. portal blood blocker as described in claim 1, which is characterized in that the length of the sliding part is the sliding groove
1.1-1.8 times of length.
8. portal blood blocker as described in claim 1, which is characterized in that one end of the sliding part is set as retractable
Structure, to conveniently penetrate the wrap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721261256.3U CN208926480U (en) | 2017-09-28 | 2017-09-28 | A kind of spiral fine adjustment type portal blood blocker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721261256.3U CN208926480U (en) | 2017-09-28 | 2017-09-28 | A kind of spiral fine adjustment type portal blood blocker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208926480U true CN208926480U (en) | 2019-06-04 |
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ID=66713144
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721261256.3U Active CN208926480U (en) | 2017-09-28 | 2017-09-28 | A kind of spiral fine adjustment type portal blood blocker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759387A (en) * | 2020-06-28 | 2020-10-13 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Laparoscopic porta hepatis blocker |
-
2017
- 2017-09-28 CN CN201721261256.3U patent/CN208926480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759387A (en) * | 2020-06-28 | 2020-10-13 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Laparoscopic porta hepatis blocker |
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