CN113678819A - Liver supplying fast fixing perfusion device in liver transplantation - Google Patents
Liver supplying fast fixing perfusion device in liver transplantation Download PDFInfo
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- CN113678819A CN113678819A CN202111157511.0A CN202111157511A CN113678819A CN 113678819 A CN113678819 A CN 113678819A CN 202111157511 A CN202111157511 A CN 202111157511A CN 113678819 A CN113678819 A CN 113678819A
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- 210000004185 liver Anatomy 0.000 title claims abstract description 47
- 230000010412 perfusion Effects 0.000 title claims abstract description 37
- 238000002054 transplantation Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims abstract description 27
- 239000011521 glass Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 230000002440 hepatic effect Effects 0.000 claims 5
- 230000000149 penetrating effect Effects 0.000 claims 4
- 238000001802 infusion Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 39
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010057573 Chronic hepatic failure Diseases 0.000 description 1
- 208000010334 End Stage Liver Disease Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000011444 chronic liver failure Diseases 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N1/00—Preservation of bodies of humans or animals, or parts thereof
- A01N1/02—Preservation of living parts
- A01N1/0236—Mechanical aspects
- A01N1/0242—Apparatuses, i.e. devices used in the process of preservation of living parts, such as pumps, refrigeration devices or any other devices featuring moving parts and/or temperature controlling components
- A01N1/0247—Apparatuses, i.e. devices used in the process of preservation of living parts, such as pumps, refrigeration devices or any other devices featuring moving parts and/or temperature controlling components for perfusion, i.e. for circulating fluid through organs, blood vessels or other living parts
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a device for rapidly fixing and filling a liver in liver transplantation, which comprises a support, a filling head and an adjusting plate, wherein the adjusting plate is vertically penetrated and provided with a mounting groove, the support penetrates through the mounting groove and is in sliding connection with the mounting groove, a pressure regulating mechanism is arranged between the support and the adjusting plate, a placing groove is arranged on the adjusting plate, a filling bottle is placed in the placing groove, the lower end of the filling bottle is provided with a hose, the other end of the hose is fixedly connected with a conveying pipe, a backflow preventing mechanism is fixedly connected in the conveying pipe, the lower end of the conveying pipe is connected with the upper end of the filling head through a connecting mechanism, and one end of the filling head, which is opposite to the conveying pipe, is provided with a conical convex end. The invention not only facilitates the installation and the disassembly of the delivery pipe, has simple and convenient operation and good sealing performance, but also can slow down the pressure on the through groove to ensure the continuous perfusion of the liquid, and can adjust the pressure of the perfusion liquid to ensure the continuous perfusion of the perfusion liquid.
Description
Technical Field
The invention relates to the technical field of medicines, in particular to a device for quickly fixing and filling a liver in liver transplantation.
Background
Currently, liver transplantation has become a conventional treatment means for treating end-stage liver diseases, and the survival rate after liver transplantation is continuously improved along with continuous popularization and improvement of liver transplantation technology in China in the year. The incidence of postoperative complications has also declined year by year. In liver transplantation, one of the key technologies in harvesting the liver is liver perfusion in situ. How to accurately position and quickly perform catheterization, fixation and perfusion is a technical problem for obtaining a high-quality liver source.
The prior art discloses a perfusion device for fast fixing liver in liver transplantation with application number of CN 201510107314.6. The perfusion device for rapidly fixing the liver in the liver transplantation comprises a puncture guiding device and a connecting ring connected with a perfusion tube, wherein the puncture guiding device is a puncture steel wire with a retractable ring at the top end, and the retractable ring is magnetic; the go-between top is the toper, go-between bottom and filling pipe connection, the inside flap that is equipped with one-way flow in go-between bottom can prevent the liquid refluence, along with can continue to fill, but has reduced the efficiency of filling, can't adjust the pressure of filling.
Therefore, we have designed a perfusion device for liver rapid fixation in liver transplantation to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a device for rapidly fixing and filling a liver in liver transplantation.
In order to achieve the purpose, the invention adopts the following technical scheme:
supply quick fixed perfusion device of liver in liver transplantation art, including the support, fill head and regulating plate, the regulating plate runs through from top to bottom and is equipped with the mounting groove, the support run through the mounting groove and rather than sliding connection, be equipped with pressure regulating mechanism between support and the regulating plate, be equipped with the standing groove on the regulating plate, placed in the standing groove and filled the bottle, fill the lower extreme of bottle and install the hose, the other end fixedly connected with conveyer pipe of hose, the mechanism that flows backwards is prevented to fixedly connected with in the conveyer pipe, the lower extreme of conveyer pipe is connected with the upper end of filling the head through coupling mechanism, fill head and conveyer pipe one end of carrying on the back mutually and set up to the toper bulge, install the mechanism of decompression rather than the intercommunication on the conveyer pipe.
Preferably, pressure regulating mechanism is including setting up the recess on the support, a plurality of first spacing teeth of fixedly connected with in the recess, run through on the regulating plate be equipped with rather than sliding connection to the rectangular block, the spacing tooth of fixedly connected with second on the rectangular block, the bottom plane of the spacing tooth of second offsets with the upper end plane of first spacing tooth, the one end fixedly connected with that the spacing tooth of second was kept away from to the rectangular block draws the piece, draw the first spring of fixedly connected with between piece and the regulating plate, first spring housing just does not contact with the rectangular block in the outside of rectangular block.
Preferably, the conveying pipe is a transparent glass pipe, and the hose is sleeved outside the conveying pipe.
Preferably, the backflow preventing mechanism is including installing the fixed block at the conveying pipe inner wall, the bottom of fixed block is equipped with the arc wall, the upper end of fixed block runs through the logical groove that is equipped with and communicates with the arc wall, be equipped with the arc piece rather than offsetting in the arc wall, the upper end fixedly connected with pull rod of arc piece, the upper end fixedly connected with connecting block of pull rod, fixedly connected with second spring between connecting block and the fixed block, the second spring housing is in the outside of pull rod and not offset with the pull rod.
Preferably, the arc-shaped groove is arranged in a spherical surface mode, and the arc-shaped blocks are arranged in a spherical block mode.
Preferably, the connecting mechanism comprises a magnetic cylinder communicated with the filling head, a magnetic ring is arranged in the magnetic cylinder and abuts against the magnetic cylinder, an air bag is fixedly connected to the inner wall of the magnetic ring, two guide grooves are formed in the inner wall of the magnetic cylinder, guide blocks are connected to the two guide grooves in a sliding mode, and the two guide blocks are fixedly connected with the magnetic ring.
Preferably, the outer wall of the bottom of the conveying pipe is arranged in an arc-shaped surface.
Preferably, the pressure reducing mechanism comprises a short pipe integrated with the conveying pipe, a piston is connected in the short pipe in a sliding mode, a third spring is fixedly connected between the piston and the end portion of the upper end of the short pipe, and an exhaust hole is formed in the end portion of the short pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. normal saline is coated outside the magnetic ring, then the guide block is installed in the guide groove and is pressed downwards, a water film is formed between the magnetic ring and the magnetic cylinder at the moment, and under the intermolecular action, the sealing performance between the magnetic ring and the magnetic cylinder is stable and good, and liquid leakage caused by backflow is avoided; then install the conveyer pipe with fill the head, only need to install the conveyer pipe in the gasbag, the gasbag is annular gasbag, can carry out the centre gripping and have better leakproofness to the conveyer pipe through the gasbag for take place to break away from between difficult and the gasbag of conveyer pipe.
2. Liquid is filled and flows downwards through the conveying pipe, the arc-shaped block moves downwards under the gravity and the pressure of the liquid, the second spring is stretched, the arc-shaped block does not abut against the arc-shaped groove, namely the arc-shaped block does not block the through groove, and the liquid flows downwards through the through groove and the arc-shaped groove, so that filling is realized; when liquid refluences, liquid produces ascending effort to the arc piece for arc piece rebound, so arc piece offsets with the arc wall, carries out the shutoff to leading to the groove, makes liquid can not continue the rebound through leading to the groove, has realized preventing the refluence effect.
3. When liquid flows backwards, the pressure in the inner cavity can be increased, so that the piston can be driven to move towards the exhaust hole, the pressure of the backflow on the arc-shaped block can be reduced, and the liquid can be continuously filled under the action of the fixed adjusting plate.
4. The piece is drawn in manual pulling, draw the piece to remove and drive rectangular block and the spacing tooth of second and remove, make the spacing tooth of second not offset with first spacing tooth, so the regulating plate no longer by spacingly, medical personnel can the rebound regulating plate, remove to suitable high back, medical personnel loosen and draw the piece, under the effect of first spring, the spacing tooth card of second is gone into in the first spacing tooth, thereby can carry on spacingly to the regulating plate, so can adjust the height of filling the bottle, can increase the pressure in the delivery pipe, make liquid be difficult for palirrhea simultaneously can continue to fill to liquid.
In conclusion, the invention not only facilitates the installation and the disassembly of the delivery pipe, has simple and convenient operation and good sealing performance, but also can slow down the pressure on the through groove to ensure the continuous perfusion of the liquid, and can also adjust the pressure of the perfusate to ensure the continuous perfusion of the perfusate.
Drawings
FIG. 1 is a schematic structural diagram of a perfusion device for rapid fixation of liver in liver transplantation according to the present invention;
FIG. 2 is a schematic structural view of the perfusion device for fast liver fixation in liver transplantation according to the present invention at position A;
FIG. 3 is a schematic structural diagram of a portion B of the perfusion device for rapid fixation of liver in liver transplantation according to the present invention;
FIG. 4 is a schematic structural diagram of a perfusion device for rapid fixation of liver at position C in liver transplantation according to the present invention;
fig. 5 is a schematic structural diagram of a position D of a perfusion device for rapid liver fixation in liver transplantation according to the present invention.
In the figure: the device comprises a support 1, a filling head 2, a conical convex end 3, a delivery pipe 4, a hose 5, an adjusting plate 6, a placing groove 7, a filling bottle 8, a mounting groove 9, a groove 10, a first limiting tooth 11, a magnetic cylinder 12, a magnetic ring 13, a guide groove 14, a guide block 15, an air bag 16, a short pipe 17, a piston 18, a third spring 19, an inner cavity 20, an exhaust hole 21, a fixing block 22, a through groove 23, a connecting block 24, a second spring 25, an arc-shaped groove 26, an arc-shaped block 27, a second limiting tooth 28, a rectangular block 29, a first spring 30, a pull block 31 and a pull rod 32.
Detailed Description
The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, the perfusion device for rapidly fixing the liver in the liver transplantation comprises a bracket 1, a perfusion head 2 and an adjusting plate 6, wherein the adjusting plate 6 is vertically penetrated with an installation groove 9, the bracket 1 penetrates through the installation groove 9 and is connected with the installation groove in a sliding manner, and a pressure regulating mechanism is arranged between the bracket 1 and the adjusting plate 6; the concrete explanation of pressure regulating mechanism, if there is the palirrhea condition of liquid, medical personnel can manual pulling pull block 31, pull block 31 removes and drives rectangular block 29 and the removal of the spacing tooth 28 of second, make the spacing tooth 28 of second not offset with first spacing tooth 11, so regulating plate 6 is no longer by spacingly, medical personnel can the rebound regulating plate 6, remove to suitable high back, medical personnel loosen pull block 31, under the effect of first spring 30, the spacing tooth 28 card of second is gone into in the first spacing tooth 11, thereby can carry on spacingly to regulating plate 6, so can adjust the height of filling bottle 8, can increase the pressure in conveyer pipe 4, make liquid be difficult for palirrhea can continue to fill to liquid simultaneously.
The pressure regulating mechanism comprises a groove 10 arranged on the support 1, a plurality of first limiting teeth 11 are fixedly connected in the groove 10, a pair of rectangular blocks 29 which are connected with the adjusting plate 6 in a sliding mode penetrate through the adjusting plate 6, second limiting teeth 28 are fixedly connected on the rectangular blocks 29, the bottom plane of the second limiting teeth 28 is abutted to the upper end plane of the first limiting teeth 11, one ends, far away from the second limiting teeth 28, of the rectangular blocks 29 are fixedly connected with pull blocks 31, first springs 30 are fixedly connected between the pull blocks 31 and the adjusting plate 6, and the first springs 30 are sleeved outside the rectangular blocks 29 and are not in contact with the rectangular blocks 29; wherein, an inner groove can be arranged on the inner wall of the mounting groove 9, that is, the second limit tooth 28 can be accommodated in the inner groove, so as to move the adjusting plate 6.
A placing groove 7 is arranged on the adjusting plate 6, a filling bottle 8 is placed in the placing groove 7, a hose 5 is installed at the lower end of the filling bottle 8, the other end of the hose 5 is fixedly connected with a conveying pipe 4, the conveying pipe 4 is a transparent glass pipe, and the hose 5 is sleeved outside the conveying pipe 4; the end of the hose 5 can be provided with a rubber tube which is sleeved outside the conveying pipe 4, so that the hose 5 is conveniently connected with the conveying pipe 4.
The anti-backflow mechanism is fixedly connected in the delivery pipe 4, and for the specific explanation of the anti-backflow mechanism, liquid is filled and flows downwards through the delivery pipe 4, the arc-shaped block 27 moves downwards under the gravity and pressure of the liquid, the second spring 25 is stretched at the moment, so that the arc-shaped block 27 does not abut against the arc-shaped groove 26, namely the arc-shaped block 27 does not block the through groove 23 any more, and the liquid flows downwards through the through groove 23 and the arc-shaped groove 26, so that filling is realized; when liquid refluences, liquid produces ascending effort to arc piece 27 for arc piece 27 rebound, so arc piece 27 offsets with arc groove 26, carries out the shutoff to leading to groove 23, makes liquid can not continue the rebound through leading to groove 23, has realized the anti-backflow effect.
The backflow preventing mechanism comprises a fixing block 22 arranged on the inner wall of the conveying pipe 4, an arc-shaped groove 26 is formed in the bottom of the fixing block 22, a through groove 23 communicated with the arc-shaped groove 26 penetrates through the upper end of the fixing block 22, an arc-shaped block 27 abutting against the arc-shaped groove 26 is arranged in the arc-shaped groove 26, a pull rod 32 is fixedly connected to the upper end of the arc-shaped block 27, a connecting block 24 is fixedly connected to the upper end of the pull rod 32, a second spring 25 is fixedly connected between the connecting block 24 and the fixing block 22, and the second spring 25 is sleeved outside the pull rod 32 and does not abut against the pull rod 32; wherein, the arc-shaped groove 26 is arranged in a spherical surface shape, and the arc-shaped block 27 is arranged in a spherical block shape.
The lower end of the conveying pipe 4 is connected with the upper end of the pouring head 2 through a connecting mechanism, the connecting mechanism comprises a magnetic cylinder 12 communicated with the pouring head 2, a magnetic ring 13 which is abutted against the magnetic cylinder 12 is arranged in the magnetic cylinder 12, an air bag 16 is fixedly connected to the inner wall of the magnetic ring 13, two guide grooves 14 are formed in the inner wall of the magnetic cylinder 12, guide blocks 15 are slidably connected in the two guide grooves 14, and the two guide blocks 15 are fixedly connected with the magnetic ring 13; the outer wall of the bottom of the conveying pipe 4 is arranged in an arc-shaped surface, so that the air bag 16 is prevented from being scratched.
The specific explanation of the connecting mechanism is that when the delivery pipe 4 and the perfusion head 2 are installed, the delivery pipe 4 is only needed to be installed in the air bag 16, the air bag 16 is an annular air bag, the delivery pipe 4 can be clamped through the air bag 16, and the air bag 16 has good sealing performance, so that the delivery pipe 4 is not easy to separate from the air bag 16; after the use is finished, the medical staff only needs to directly pull out the conveying pipe 4, and then the staff manually takes out the magnetic ring 13 to clean the magnetic ring, so that the operation is simple and quick; during installation, normal saline is coated outside the magnetic ring 13, then the guide block 15 is installed in the guide groove 14 and pressed downwards, a water film is formed between the magnetic ring 13 and the magnetic cylinder 12 at the moment, and under the action of molecules, the sealing performance between the magnetic ring 13 and the magnetic cylinder 12 is stable and good, and liquid leakage caused by backflow can be avoided.
One end of the pouring head 2, which is opposite to the conveying pipe 4, is provided with a conical convex end 3, the conveying pipe 4 is provided with a pressure reducing mechanism communicated with the conveying pipe, the pressure reducing mechanism comprises a short pipe 17 integrated with the conveying pipe 4, and an inner cavity 20 is arranged in the short pipe 17; sliding connection has piston 18 in pipe nipple 17, fixedly connected with third spring 19 between the upper end tip of piston 18 and pipe nipple 17, and the tip of pipe nipple 17 is equipped with exhaust hole 21, when liquid is palirrhea, can increase the pressure in the inner chamber 20 to can drive piston 18 and locate to remove to exhaust hole 21, thereby can reduce palirrhea pressure to arc piece 27 department, still can continue to fill liquid under the effect of assurance stationary adjusting plate 6.
When the invention is used, the physiological saline is coated outside the magnetic ring 13, then the guide block 15 is arranged in the guide groove 14 and is pressed downwards, and at the moment, a water film is formed between the magnetic ring 13 and the magnetic cylinder 12, so that the sealing performance between the magnetic ring 13 and the magnetic cylinder 12 is stable and good under the intermolecular action, and the liquid leakage condition caused by backflow can be avoided; then the conveying pipe 4 and the perfusion head 2 are installed, the conveying pipe 4 is only needed to be installed in the air bag 16, the air bag 16 is an annular air bag, the conveying pipe 4 can be clamped through the air bag 16, and the air bag 16 has good sealing performance, so that the conveying pipe 4 is not easy to separate from the air bag 16;
the perfusate is perfused to the liver part through the hose 5, the delivery pipe 4, the perfusion head 2 and the conical convex end 3, wherein the perfusion head 2 and the conical convex end 3 are the prior art;
liquid is filled and flows downwards through the conveying pipe 4, the arc-shaped block 27 moves downwards under the gravity and the pressure of the liquid, the second spring 25 is stretched, the arc-shaped block 27 does not abut against the arc-shaped groove 26, namely the arc-shaped block 27 does not block the through groove 23, and the liquid flows downwards through the through groove 23 and the arc-shaped groove 26, so that the filling is realized; when liquid backflow occurs, the liquid generates an upward acting force on the arc-shaped block 27, so that the arc-shaped block 27 moves upwards, the arc-shaped block 27 abuts against the arc-shaped groove 26, the through groove 23 is blocked, the liquid cannot continuously move upwards through the through groove 23, and the backflow prevention effect is realized;
when the liquid flows backwards, the pressure in the inner cavity 20 is increased, so that the piston 18 can be driven to move towards the exhaust hole 21, the pressure of the backflow on the arc-shaped block 27 can be reduced, and the liquid can be continuously poured under the action of the fixed adjusting plate 6;
if can't fill through leading to groove 23, medical personnel can manual pulling arm-tie 31, arm-tie 31 removes and drives rectangular block 29 and the removal of the spacing tooth 28 of second, make the spacing tooth 28 of second not offset with first spacing tooth 11, so regulating plate 6 is no longer spacing, medical personnel can the rebound regulating plate 6, remove to suitable high back, medical personnel loosen arm-tie 31, under the effect of first spring 30, the spacing tooth 28 card of second is gone into in the first spacing tooth 11, thereby can carry on spacingly to regulating plate 6, so can adjust the height of filling bottle 8, can increase the pressure in the conveyer pipe 4, make liquid be difficult for palirrhea can continue to fill to liquid simultaneously.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A rapid liver-supplying and fixing perfusion device in liver transplantation comprises a support (1), a perfusion head (2) and a regulating plate (6), and is characterized in that the regulating plate (6) is vertically provided with a mounting groove (9) in a penetrating manner, the support (1) is provided with a mounting groove (9) in a penetrating manner and is in sliding connection with the mounting groove (9), a pressure regulating mechanism is arranged between the support (1) and the regulating plate (6), a placing groove (7) is arranged on the regulating plate (6), a perfusion bottle (8) is placed in the placing groove (7), a hose (5) is installed at the lower end of the perfusion bottle (8), the other end of the hose (5) is fixedly connected with a conveying pipe (4), a backflow preventing mechanism is fixedly connected in the conveying pipe (4), the lower end of the conveying pipe (4) is connected with the upper end of the perfusion head (2) through a connecting mechanism, and the end of the perfusion head (2) back to the conveying pipe (4) is arranged to be a conical convex end (3), and a pressure reducing mechanism communicated with the conveying pipe (4) is arranged on the conveying pipe.
2. The device for rapid hepatic perfusion fixation in liver transplantation according to claim 1, the pressure regulating mechanism comprises a groove (10) arranged on the bracket (1), a plurality of first limiting teeth (11) are fixedly connected in the groove (10), a pair of rectangular blocks (29) which are connected with the adjusting plate (6) in a sliding way are arranged on the adjusting plate (6) in a penetrating way, a second limiting tooth (28) is fixedly connected to the rectangular block (29), the bottom plane of the second limiting tooth (28) is abutted against the upper end plane of the first limiting tooth (11), one end of the rectangular block (29) far away from the second limit tooth (28) is fixedly connected with a pull block (31), a first spring (30) is fixedly connected between the pulling block (31) and the adjusting plate (6), the first spring (30) is sleeved outside the rectangular block (29) and is not in contact with the rectangular block (29).
3. The device for rapid hepatic perfusion fixation in liver transplantation according to claim 1, wherein the delivery tube (4) is a transparent glass tube, and the flexible tube (5) is disposed outside the delivery tube (4).
4. The device for rapidly fixing and infusing the liver in the liver transplantation as claimed in claim 1, wherein the backflow prevention mechanism comprises a fixing block (22) mounted on the inner wall of the conveying pipe (4), an arc-shaped groove (26) is formed in the bottom of the fixing block (22), a through groove (23) communicated with the arc-shaped groove (26) is formed in the upper end of the fixing block (22) in a penetrating mode, an arc-shaped block (27) which is abutted against the arc-shaped groove (26) is arranged in the arc-shaped groove (26), a pull rod (32) is fixedly connected to the upper end of the arc-shaped block (27), a connecting block (24) is fixedly connected to the upper end of the pull rod (32), a second spring (25) is fixedly connected between the connecting block (24) and the fixing block (22), and the second spring (25) is sleeved outside the pull rod (32) and does not abut against the pull rod (32).
5. The device for rapid hepatic immobilization for liver transplantation according to claim 4, wherein the arc-shaped slot (26) is spherically disposed and the arc-shaped block (27) is spherically disposed.
6. The liver perfusion apparatus for fast fixing in liver transplantation as claimed in claim 1, wherein the connecting mechanism includes a magnetic cylinder (12) communicated with the perfusion head (2), a magnetic ring (13) is disposed in the magnetic cylinder (12) and abuts against the magnetic cylinder, an air bag (16) is fixedly connected to an inner wall of the magnetic ring (13), two guide grooves (14) are disposed on an inner wall of the magnetic cylinder (12), guide blocks (15) are slidably connected to both of the guide grooves (14), and both of the guide blocks (15) are fixedly connected to the magnetic ring (13).
7. The device for rapid hepatic perfusion in liver transplantation according to claim 1, wherein the outer wall of the bottom of the delivery tube (4) is arc-shaped.
8. The device for the rapid hepatic fixation infusion according to claim 1, wherein the pressure reducing mechanism comprises a short tube (17) integrated with the delivery tube (4), a piston (18) is slidably connected in the short tube (17), a third spring (19) is fixedly connected between the piston (18) and the upper end of the short tube (17), and an exhaust hole (21) is arranged at the end of the short tube (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157511.0A CN113678819B (en) | 2021-09-30 | 2021-09-30 | Device for fast fixing and filling liver in liver transplantation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157511.0A CN113678819B (en) | 2021-09-30 | 2021-09-30 | Device for fast fixing and filling liver in liver transplantation |
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| CN113678819A true CN113678819A (en) | 2021-11-23 |
| CN113678819B CN113678819B (en) | 2022-06-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115252072A (en) * | 2022-06-15 | 2022-11-01 | 中国人民解放军总医院第七医学中心 | Liver supplying quick fixation perfusion device in liver transplantation |
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| CN106804398A (en) * | 2015-11-28 | 2017-06-09 | 重庆上田生态农业开发有限公司 | Pouring liquid device |
| CN209695938U (en) * | 2018-03-15 | 2019-11-29 | 温州市中心医院 | A kind of temperature-control pressure-control enteroclysm device |
| CN208876889U (en) * | 2018-06-12 | 2019-05-21 | 云南洛宇生物科技有限公司 | A kind of fixed device of mouse heart perfusion |
| CN211383108U (en) * | 2019-08-20 | 2020-09-01 | 吴玉蓝 | Blood return prevention infusion apparatus |
| CN110464909A (en) * | 2019-08-26 | 2019-11-19 | 湖南丹尼尔智能科技有限公司 | A kind of transfusion apparatus for facilitating coutroi velocity anti-return that can remind using overflow valve |
| CN112790188A (en) * | 2019-10-28 | 2021-05-14 | 西安交通大学医学院第一附属医院 | Rapid perfusion device for liver supply in liver transplantation |
| CN213031496U (en) * | 2020-04-22 | 2021-04-23 | 黑龙江升华医疗器械有限公司 | Anti-backflow infusion apparatus |
| CN213432147U (en) * | 2020-09-28 | 2021-06-15 | 南通市中医院 | Auxiliary device of normal saline bottle in no heparin dialysis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115252072A (en) * | 2022-06-15 | 2022-11-01 | 中国人民解放军总医院第七医学中心 | Liver supplying quick fixation perfusion device in liver transplantation |
| CN115252072B (en) * | 2022-06-15 | 2024-04-19 | 中国人民解放军总医院第七医学中心 | Quick fixing and pouring device for liver in liver transplantation |
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| CN113678819B (en) | 2022-06-24 |
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