CN116687478A - Opening device for abdominal cavity minimally invasive surgery - Google Patents
Opening device for abdominal cavity minimally invasive surgery Download PDFInfo
- Publication number
- CN116687478A CN116687478A CN202310982925.XA CN202310982925A CN116687478A CN 116687478 A CN116687478 A CN 116687478A CN 202310982925 A CN202310982925 A CN 202310982925A CN 116687478 A CN116687478 A CN 116687478A
- Authority
- CN
- China
- Prior art keywords
- channel
- air
- pipe
- fixed
- expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000000683 abdominal cavity Anatomy 0.000 title claims description 9
- 238000002324 minimally invasive surgery Methods 0.000 title description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000009423 ventilation Methods 0.000 claims abstract description 16
- 210000005239 tubule Anatomy 0.000 claims abstract description 14
- 238000012084 abdominal surgery Methods 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000001356 surgical procedure Methods 0.000 claims 1
- 230000003187 abdominal effect Effects 0.000 abstract description 5
- 210000004185 liver Anatomy 0.000 description 33
- 210000000056 organ Anatomy 0.000 description 22
- 230000000903 blocking effect Effects 0.000 description 18
- 238000005452 bending Methods 0.000 description 13
- 230000007480 spreading Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000000926 separation method Methods 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 206010052428 Wound Diseases 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B2017/0212—Cushions or pads, without holding arms, as tissue retainers, e.g. for retracting viscera
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to the technical field of minimally invasive abdominal surgical instruments, in particular to an opening device for minimally invasive abdominal surgery, which is used for switching three ventilation states, namely, an air channel switching component is used for switching off a telescopic air distribution channel and simultaneously switching on an expansion air distribution pipeline, switching on the telescopic air distribution channel and simultaneously switching off the expansion air distribution pipeline, and simultaneously switching off the telescopic air distribution channel and the expansion air distribution pipeline; the main channel of the sliding block and the air inlet of the sliding block are communicated with each other; spring strips are arranged on two sides of the guide tube; the pipe body of the steel air pipe is hinged at one end of the spring strip; the tail end of the steel gas pipe is connected with the expansion air bag; the top of the sliding block is fixed with a telescopic rubber air bag; the top end of the telescopic rubber air bag is fixed on the long tubule; the telescopic rubber air bag is communicated with the second long channel. When the invention is used, the outward expansion efficiency of the spring strip is high, the expanding speed is high, and the improvement of the operation efficiency is facilitated; and under the cut-off state of the telescopic gas distribution channel and the expansion gas distribution channel, only two hands are needed to be used for alternate control, so that the use is more convenient.
Description
Technical Field
The invention relates to the technical field of minimally invasive abdominal surgical instruments, in particular to a spreader for minimally invasive abdominal surgery.
Background
The abdominal operation is to insert the laparoscopic lens into the abdominal cavity, and the image shot by the laparoscopic lens is transmitted to a screen in real time by using an imaging technology. The doctor analyzes and judges the illness state of the patient through the images of different angles of the organs of the patient displayed on the screen, and performs the operation by using the laparoscopic instrument. Because of the large number of organs inside the abdominal cavity, such as: liver, intestinal tract, spleen and stomach, etc., are soft and fragile; therefore, in the surgical process, a spreader is usually required to be used for spreading, so as to facilitate the surgical operation and protect non-focal organs and parts. The existing opening device has the technical problems of complicated operation, unsatisfactory opening effect, easy damage risk of the opened organ and the like.
The existing spreader, as shown in fig. 1-6, includes: draw hook component Y, liver guard X and spreader Z.
Wherein: the draw hook assembly Y is shown in figures 1 and 2, and two ends of a draw hook main connecting pipe Y3 are respectively connected with a draw hook nut Y2 and a movable bending part Y4; the drag hook nut Y2 is in threaded connection with a drag hook screw rod Y1; a steel wire rope penetrating through the inner cavity of the movable bending part Y4 is arranged in the draw hook main connecting pipe Y3, and one end of the steel wire rope is fixed on a draw hook screw rod Y1; the wire rope can be pulled after the drag hook screw Y1 rotates on the drag hook nut Y2; the movable bending part Y4 consists of a plurality of movable bending joints; the movable bending joints are hinged with each other, and the hinge shafts are parallel to each other; the connection position of the steel wire rope and the movable bending joint is at an eccentric position (a general connection point is on the side surface of the movable bending joint); therefore, when the tensioning steel wire rope is pulled, the joint connected with the steel wire rope turns over firstly, and then the adjacent joint is also subjected to turning-over force; each joint is turned over in turn and then is closed to form an annular closed ring. During operation, the steel wire rope stretches the movable bending part Y4 (shown in fig. 2) which is not pulled by the steel wire rope into the abdomen, then the steel wire rope is tightened by rotating the drag hook screw Y1 for a plurality of circles, and the joints are turned over in sequence and then are closed to form an annular closed circle (shown in fig. 1); by means of the annular closing ring attached to the liver surface, an operator applies thrust or pressure on the upper draw hook main connecting pipe Y3 to separate the liver from the operation position to form an operation space (the position of the draw hook assembly is misplaced with the operation position, so that the operation instrument has enough space to extend in from the poked gap). The retractor assembly Y can create a sufficient surgical space, but is "linear", has a small contact area with an organ such as the liver, and is a contact member positioned at the movable bent portion Y4, and is usually a metal member, and is liable to cause a compressive injury to a fragile organ such as the liver.
Wherein: as shown in fig. 3 and 4, one end of a liver blocking long tube X3 is connected with a liver blocking handle X2, the other end is connected with a plurality of blades X6, and elastic sheets for mutually expanding are arranged between the blades X6; one end of the blade X6 is rotationally connected through a liver-blocking sliding pin X5; the liver-blocking sliding pin X5 can slide in a pin sliding guide groove X301 arranged on the liver-blocking long tube X3, and one end of a blade X6 extends into the liver-blocking long tube X3; the liver blocking handle X2 is connected with a liver blocking adjusting knob X1; the liver blocking long tube X3 is provided with a liver blocking traction steel cable X4; one end of the liver blocking traction steel cable X4 is fixed on a liver blocking sliding pin X5 (the liver blocking sliding pin X5 is generally connected to a sliding block, and the sliding block directionally slides in the liver blocking long tube X3); the tail end of the liver blocking traction steel cable X4 is connected to a winder in the liver blocking handle X2; the liver-blocking sliding pin X5 can be driven to slide by rotating the liver-blocking adjusting knob X1; a reset spring pushing out the liver-blocking sliding pin X5 to the direction of the blade X6 is arranged in the liver-blocking long tube X3. The application method comprises the following steps: during operation, the liver blocking traction steel cable X4 is pulled firstly, so that a plurality of blades X6 are stacked and conveniently inserted into the liver blocking long tube X3, the plurality of blades X6 are further folded under the constraint of the liver blocking long tube X3 (as shown in figure 4), after the blades X6 extend into the abdominal cavity, the liver blocking traction steel cable X4 is released by rotation, and the liver blocking sliding pin X5 is pushed by a spring to slide towards the direction of the blades X6; the blade X6 gradually extends to the liver-protecting long tube X3 and is opened in a fan shape (shown in figure 3); the operator pushes away the shielding organ through the fan-shaped blade X6 to form an operation space. Compared with a drag hook assembly, the liver guard increases the contact surface with the organ to be distracted, and can also contact the liver through a plurality of blades X6, so that the contact area between the large liver guard X and the surface of the liver is enhanced, and the risk of the organ to be distracted from being wounded can be reduced.
However, no matter the drag hook component Y or the liver guard X, active thrust is required to be applied to the organ all the time in the operation process, and the stability of the thrust is quite difficult to keep due to longer operation time, so that the labor intensity of operators is higher; after the liver is propped up, adjacent organs also easily flow into the propped up space, and the operation sight and operation are greatly influenced.
And another spreader Z, as shown in fig. 5 and 6, the spreader Z comprises a housing Z3, a spreading sliding shaft Z2 slidingly connected to the housing Z3, and a first handle Z1 capable of pushing the spreading sliding shaft Z2 to slide; the opening sliding shaft Z2 can rotate on the shell Z3; the inner cavity of the shell Z3 is rotatably connected with a supporting rotating shaft Z5; one end of the expanding sliding shaft Z2, which is close to the expanding rotating shaft Z5, is connected with a gear Z4; one end of the opening rotating shaft Z5 is provided with a gear hole Z6; two sections of opposite-direction stretching rotating shaft threads Z7 are arranged on the stretching rotating shaft Z5; the two sections of the stretching rotating shaft threads Z7 are connected with stretching connecting rod nuts Z10 in a threaded manner; the two sides of the shell Z3 are provided with a spreading sheet Z8; two strutting connecting rods Z9 are hinged on the strutting piece Z8; two expansion connecting rods Z9 on the expansion sheet Z8 are respectively hinged on two expansion connecting rod nuts Z10; the shell Z3 is provided with a groove capable of passing through the expansion connecting rod Z9, so that the expansion connecting rod nut Z10 does not rotate along with the expansion rotating shaft Z5 after being limited. During operation, before the spreader Z stretches into the abdominal cavity, the spreading piece Z8 is attached to the shell Z3, so that the whole section of the spreading piece Z8 is reduced and then stretches into the abdominal cavity; the head of the shell Z3 is firstly inserted between organs near the operation position, then the first handle Z1 is pressed to push the gear Z4 into the gear hole Z6, so that the gear Z4 is meshed with the gear hole Z6, the expanding rotating shaft Z5 is rotated by rotating the expanding sliding shaft Z2, meanwhile, two expanding connecting rod nuts Z10 are driven to be close to each other, and the expanding piece Z8 is pushed out by the expanding connecting rod Z9; an increase in the diameter of the body is achieved. The two side supporting sheets Z8 of the supporting device Z push away the organs at the two sides, so that the backfilling of the adjacent organs is avoided, and a stable operation space is formed. The distractor Z still has the following disadvantages: 1. single stage opening (pushing open the spreader plate by means of the tie rod) is limited in the extent of opening. 2. The opening piece is a rigid component, and is easy to cause extrusion damage to the internal organs. 3. The mode that the screw rod is rotated manually to drive the nut to adjust is low in transmission efficiency, and the speed of operation is influenced due to slow stretching speed. 4. During adjustment, the first handle Z1 needs to be pressed and the sliding shaft Z2 is rotated to be propped up for cooperative action, two hands are required to be operated simultaneously, and labor intensity is high.
Therefore, it is necessary to design a spreader for minimally invasive abdominal surgery which has high spreading efficiency, is simple to operate, and can reduce the risk of wound caused by the spreader.
Disclosure of Invention
The invention aims to provide a spreader for abdominal minimally invasive surgery, which aims at overcoming the defects and shortcomings of the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a strutting device for abdominal minimally invasive surgery, which comprises a piston cylinder, a piston connected in the piston cylinder in a sliding way, a sliding sleeve fixed at one end of the piston cylinder and a gas distribution pipe fixed at the other end of the piston cylinder; a long tubule is fixed on the gas-distributing pipe;
the sliding sleeve is connected with a compression bar in a sliding way, and the compression bar is fixed on the piston; one end of the compression bar extending out of the sliding sleeve is fixedly provided with a compression bar handle; a fixed handle is fixed on the sliding sleeve;
a telescopic gas distribution channel and an expansion gas distribution pipeline are arranged in the gas distribution pipe; the long tubule is provided with a first long channel and a second long channel; the telescopic gas dividing channel is communicated with the second long channel; the first long channel is communicated with the expansion gas distribution pipeline; the first long channel and the second long channel are communicated with the inner cavity of the piston cylinder; the inside of the gas distribution pipe is provided with a gas circuit switching assembly; the gas circuit switching component is used for switching three ventilation states of switching the expansion gas distribution pipeline while switching the telescopic gas distribution channel, switching the expansion gas distribution pipeline while switching the telescopic gas distribution channel on and switching the expansion gas distribution channel and the expansion gas distribution pipeline off;
the bottom end of the long tubule is sleeved with a guide pipe; the tail end of the guide tube is fixed with a semispherical head; a sliding block is connected inside the guide tube in a sliding way; a main sliding block channel and a sliding block air inlet are arranged in the sliding block; the main channel of the sliding block is communicated with the air inlet of the sliding block; the tail end of the first long channel is communicated with the air inlet of the sliding block through a connecting hose; two ends of the sliding block are fixedly provided with steel air pipes communicated with the main channel of the sliding block;
two sides of the guide tube are provided with gas passing channels; the length direction of the air passing pipe channel is consistent with the length direction of the guide pipe; spring strips are arranged on two sides of the guide tube; the pipe body of the steel air pipe is hinged to one end of the spring strip; the other end of the spring strip is hinged with the semispherical head; an expansion air bag is fixed on the outer side surface of the spring strip; the tail end of the steel gas pipe is communicated with the expansion air bag; the top of the sliding block is fixed with a telescopic rubber air bag;
the top end of the telescopic rubber air bag is fixed on the long tubule; the telescopic rubber air bag is communicated with the second long channel.
Further, a sliding shaft is fixed on the back of the spring strip; the sliding shaft is connected with two connecting sliding sleeves in a sliding manner; a sliding rod is fixed on both the connecting sliding sleeves; the outer sides of the sliding rods are respectively fixed with a bolt; the outer part of the bolt is provided with a positioning ring matched with the bolt; the positioning ring is fixed on the hemispherical head; the slide bars are fixedly provided with slide bar connecting blocks; the sliding rod connecting block is fixed on the surface of the expansion air bag;
the tail end of the steel air pipe is connected with an air pipe quick connector; the expansion air bag is connected with a quick connecting pipe matched with the quick tracheal joint for use; the top of spring strip is provided with the opening that is used for quick takeover to pass through, quick takeover with opening inside wall rotates to be connected.
Further, the gas circuit switching assembly comprises a gas circuit adjusting pin and an adjusting nut fixed on the outer side wall of the gas distribution pipe; the air path adjusting pin is provided with pin external threads matched with the adjusting nut; the pin external thread is in threaded connection with the adjusting nut; a first channel and a second channel are arranged on the pin body of the air path adjusting pin; the axis of the first channel and the axis of the second channel are not on the same plane; the axis of the first channel and the axis of the telescopic gas distribution channel are arranged on the same plane; the axis of the second channel and the axis of the expansion gas distribution pipeline are arranged on the same plane.
Further, the axis of the first channel is a first axis; the axis of the second channel is a second axis, and the included angle between the first axis and the second axis is a second included angle; the second included angle is set between 25 ° and 50 °.
Further, the second included angle is 35 °.
Further, the fixed handle and the air path adjusting pin are arranged along the circumferential direction of the piston cylinder; the side surface of the fixed handle is a handle side surface; the axis of the air path adjusting pin is a pin axis; the included angle between the pin shaft center and the side surface of the handle is a first included angle; the first included angle is 30-90 degrees; the length direction of the air passage is parallel to the side surface of the handle.
Further, the first included angle is 60 °.
After the structure is adopted, the invention has the beneficial effects that: the invention relates to a strutting device for abdominal cavity minimally invasive surgery, when in use, a pressure lever handle and a fixed handle are held by hand,
first ventilation state: when the gas circuit switching component is switched to a state of switching off the telescopic gas distribution channel and switching on the expansion gas distribution channel, gas in the piston cylinder enters the expansion gas bag from the expansion gas distribution channel, the first long channel, the connecting hose, the sliding block air inlet, the sliding block main channel and the steel gas pipe through the movement of the piston, and the expansion gas bag is inflated.
Second ventilation state: when the gas circuit switching component is switched to the telescopic gas distribution channel and simultaneously cuts off the expansion gas distribution pipeline, gas in the piston cylinder is fed into the telescopic rubber air bag from the telescopic gas distribution channel and the second long channel through the movement of the piston, so that the telescopic rubber air bag stretches, the telescopic rubber air bag pushes the sliding block to slide in the guide pipe, the steel gas pipe drives the top end of the spring strip to move downwards, and the bottom of the spring strip is hinged, so that the spring strip is outwards bent to be arc-shaped after the steel gas pipe moves downwards, and the expanding action is realized; after the telescopic rubber air bag is exhausted and contracted, the sliding block and the steel air pipe move upwards, and the spring strip realizes the action of accelerating and contracting; after the two ventilation states are used in sequence, a secondary expansion is formed.
In the third ventilation state, in the working state or in the standby state, the air passage switching component is switched to a state of cutting off the telescopic air distribution channel and the expansion air distribution channel, and air in the piston cylinder cannot pass through the telescopic air distribution channel and the expansion air distribution channel, so that the expansion air bag and the telescopic rubber air bag keep the current use state.
In the structure, the expansion and contraction of the expansion air bag and the expanding and retracting actions of the spring strips are controlled through the air inlet and outlet of the piston cylinder, so that the secondary stage expanding is realized, the expanding amplitude is larger, the expansion air bag on the surface of the spring strips is of a flexible structure and is in flexible contact with an expanded organ, and the risk of wound on the expanded organ in operation is reduced; the piston cylinder of the large piston is used as the power for the linear motion of the sliding block, so that the expansion air bag and the spring strip can be controlled by the small-stroke piston motion, the spring strip is greatly bent, and the expanding transmission efficiency is high; the spring strips are high in outward expansion efficiency and quick in expanding speed, so that the operation efficiency is improved; in addition, under the cut-off state of the telescopic gas distribution channel and the expansion gas distribution channel, the stability of the posture of the spring strip and the expansion air bag is strong, so that the operation is more stable; the gas circuit switching assembly is only operated before and after adjustment, and long-time control of the gas circuit switching assembly is not needed, so that single-hand operation can be realized in the opening process, and when adjustment is performed, only two hands are needed to be used for alternating control in the whole adjustment process, so that the use is more convenient.
Drawings
FIG. 1 is a block diagram of a prior art retractor assembly in an operative configuration;
FIG. 2 is a block diagram of a prior art retractor assembly with an internal wire rope not being tensioned;
FIG. 3 is a block diagram of a conventional liver guard in an expanded state;
FIG. 4 is a block diagram of a conventional liver guard in a collapsed state;
FIG. 5 is a block diagram of a prior art distractor in a non-open state of the distractor pieces;
FIG. 6 is a block diagram of a prior art distractor in an open state of the distractor pieces;
FIG. 7 is a first perspective view of the present invention;
FIG. 8 is a second perspective view of the present invention;
FIG. 9 is a front cross-sectional view of the present invention;
fig. 10 is an enlarged view of a portion a in fig. 9;
FIG. 11 is a cross-sectional view of the present invention after inflation of the inflatable bladder;
fig. 12 is an enlarged view of a portion B in fig. 11;
FIG. 13 is a block diagram of the present invention after inflation of the inflatable bladder and bending of the spring strips;
fig. 14 is an enlarged view of a portion C in fig. 13;
FIG. 15 is a perspective view of the present invention after the inflatable bladder has been removed;
fig. 16 is an enlarged view of a portion D in fig. 15;
FIG. 17 is a connection diagram of the spring strips, pins and connecting sliding sleeve to the inflated airbag;
FIG. 18 is a connection diagram of the spring strips, pins and connecting sliding sleeve to the post-venting inflatable bladder;
FIG. 19 is a block diagram of the slider and the telescoping rubber bladder after gas injection;
FIG. 20 is a bottom view of the present invention;
FIG. 21 is a block diagram of the distribution of the first and second passages of the gas circuit adjust pin;
reference numerals illustrate:
1. a compression bar; 101. a compression bar handle; 2. a sliding sleeve; 201. a fixed handle;
201a, a handle side surface; 3. a piston cylinder; 4. a gas distribution pipe; 401. a telescopic gas separation channel;
402. an expansion gas separation pipeline; 5. the air path adjusting pin; 501. pin external threads; 502. a first channel;
503. a second channel; 6. inflating the balloon; 601. quick connection pipe; 7. a guide tube; 701. a semi-ball head;
702. a positioning ring; 703. a gas passing tube passage;
8. a long tubule; 801. a first long channel; 802. a second long channel; 9. an adjusting nut;
10. a piston; 11. a slide block; 1101. a slider main channel; 1102. a slider air inlet;
12. a spring bar; 1201. a sliding shaft; 13. the sliding sleeve is connected; 14. a slide bar;
1401. a slide bar connecting block; 15. a plug pin; 16. a telescopic rubber air bag; 17. a steel gas pipe;
1701. a quick joint of the air pipe; 18. a connecting hose; alpha, a first included angle; beta, a second included angle;
x, liver guard; x1, liver-blocking adjusting knob; x2, liver-blocking handle; x3, a liver blocking long tube; x301, pin sliding guide groove; x4, liver-blocking traction steel cable; x5, liver-blocking sliding pins; x6, leaves;
y, drag hook assembly; y1, a drag hook screw rod; y2, drag hook nut; y3, drag hook main connecting pipe; y4, a movable bending part;
z, a spreader; z1, a first handle; z2, stretching the sliding shaft; z3, a shell; z4, gears; z5, stretching the rotating shaft;
z6, gear hole; z7, expanding the screw thread of the rotating shaft; z8, a spreading sheet; z9, a connecting rod is spread; z10, opening the connecting rod nut.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 7 to 21, the expanding device for the minimally invasive abdominal surgery comprises a piston cylinder 3, a piston 10 slidingly connected inside the piston cylinder 3, a sliding sleeve 2 fixed at one end of the piston cylinder 3 and a gas distribution pipe 4 fixed at the other end of the piston cylinder 3; a long tubule 8 is fixed on the gas-distributing pipe 4;
the sliding sleeve 2 is connected with a compression bar 1 fixed on a piston 10 in a sliding way; one end of the compression bar 1 extending out of the sliding sleeve 2 is fixed with a compression bar handle 101; a fixed handle 201 is fixed on the sliding sleeve 2;
a telescopic gas distribution channel 401 and an expansion gas distribution pipeline 402 are arranged in the gas distribution pipe 4; the long tubule 8 is provided with a first long channel 801 and a second long channel 802; the telescopic gas dividing channel 401 is communicated with the second long channel 802; the first long channel 801 is communicated with the expansion gas distribution pipeline 402; the first long channel 801 and the second long channel 802 are communicated with the inner cavity of the piston cylinder 3; the inside of the gas distribution pipe 4 is provided with a gas circuit switching component; the gas circuit switching component is used for switching three ventilation states of switching on the expansion gas distribution pipeline 402 while switching off the telescopic gas distribution channel 401, switching on the expansion gas distribution pipeline 402 while switching on the telescopic gas distribution channel 401 and switching off the expansion gas distribution pipeline 401 and the expansion gas distribution pipeline 402;
the bottom end of the long tubule 8 is sleeved with a guide tube 7; a half ball head 701 is fixed at the tail end of the guide tube 7; a sliding block 11 is connected inside the guide pipe 7 in a sliding way; the inside of the slide block 11 is provided with a slide block main channel 1101 and a slide block air inlet 1102; the slider main channel 1101 and the slider air intake 1102 are in communication with each other; the end of the first long channel 801 is connected to the air inlet 1102 of the slider through a connecting hose 18, and the connecting hose 18 is a foldable hose which is not substantially different from the prior art, so that a silicone tube is not specifically selected; two ends of the slide block 11 are fixed with a steel air pipe 17 communicated with the slide block main channel 1101;
the two sides of the guide tube 7 are provided with a gas passing tube channel 703; the length direction of the gas passing pipe channel 703 is consistent with the length direction of the guide pipe 7; the width of the gas passing pipe channel 703 is larger than the outer diameter of the steel gas pipe 17, so that the steel gas pipe 17 can slide in the gas passing pipe channel 703; spring strips 12 are arranged on both sides of the guide tube 7; the pipe body of the steel air pipe 17 is hinged at one end of the spring strip 12; the other end of the spring strip 12 is hinged with a half ball head 701; the outer side surface of the spring strip 12 of the steel air pipe 17 is fixed with an expansion air bag 6; the tail end of the steel air pipe 17 is connected with the expansion air bag 6; a telescopic rubber air bag 16 is fixed at the top of the sliding block 11; the telescopic rubber bag 16 is not essentially different from the prior art, so that it is not described in detail that the telescopic rubber bag 16 is elongated in the length direction after the gas is injected into the telescopic rubber bag 16; conversely, the air is discharged from the telescopic rubber air bag 16, and the telescopic rubber air bag 16 is contracted along the length direction;
the top end of the telescopic rubber air bag 16 is fixed on the long tubule 8; the telescopic rubber bladder 16 is connected with the second long channel 802.
In the first ventilation state, when the air passage switching assembly is switched to the state of cutting off the telescopic air distribution channel 401 and simultaneously connecting the expansion air distribution channel 402, air in the piston cylinder 3 is introduced into the expansion air bag 6 from the expansion air distribution channel 402, the first long channel 801, the connecting hose 18, the sliding block air inlet 1102, the sliding block main channel 1101 and the steel air pipe 17 through the movement of the piston 10, and the expansion air bag 6 is inflated, and the piston 10 is required to be pulled back before the body is inserted, so that the air in the expansion air bag 6 is discharged, and the volume of the expansion air bag 6 is reduced to the minimum.
In the second ventilation state, when the air path switching component is switched to a state of switching on the telescopic air distribution channel 401 and simultaneously switching off the expansion air distribution pipeline 402, the air in the piston cylinder 3 is moved by the piston 10 to enter the telescopic rubber air bag 16 from the telescopic air distribution channel 401 and the second long channel 802, so that the telescopic rubber air bag 16 stretches, and the telescopic rubber air bag 16 pushes the sliding block 11 to slide in the guide pipe 7;
the steel air pipe 17 drives the top end of the spring strip 12 to move downwards, and as the bottom of the spring strip 12 is hinged, the steel air pipe 17 bends outwards to form an arc shape after moving downwards, so that the expanding action is realized; after the telescopic rubber air bag 16 is exhausted and contracted, the sliding block 11 and the steel air pipe 17 move upwards, and the spring strip 12 realizes the action of accelerating and contracting.
After the two ventilation states are used in sequence, a secondary expansion is formed.
In the third ventilation state, in the operating state or in the standby state, the gas path switching assembly is switched to a state in which the telescopic gas distribution channel 401 and the expansion gas distribution pipe 402 are cut off, and the gas inside the piston cylinder 3 cannot pass through the telescopic gas distribution channel 401 and the expansion gas distribution pipe 402, so that the expansion airbag 6 and the telescopic rubber airbag 16 maintain the current use state.
In the structure, the expansion and contraction of the expansion air bag 6 and the expanding and retracting actions of the spring strips 12 are controlled by the air inlet and outlet of the piston cylinder 3, so that the two-stage expanding is realized, the expanding can be carried out more greatly, the expansion air bag 6 on the surface of the spring strips 12 is of a flexible structure and is in flexible contact with an expanded organ, and the risk of organ trauma caused by expanding in the operation process is reduced; the piston cylinder 3 with a large piston is used as the power for the linear motion of the sliding block 11, the piston 10 with a small stroke motion can control the large-amplitude bending of the spring strip 12, and the spreading transmission efficiency is high; the spring strips 12 are high in outward expansion efficiency, high in expanding speed and capable of improving operation efficiency; in addition, in the cut-off state of the telescopic air distribution channel 401 and the expansion air distribution pipeline 402, the stability of the posture of the spring strip 12 and the expansion air bag 6 is strong, so that the operation is more stable; the air passage switching assembly is only required to be operated before and after adjustment, and long-time control of the air passage switching assembly is not required; therefore, in the process of opening, single-hand operation can be realized, and in the whole adjusting process, only two hands are needed to be used for alternate control during adjusting, so that the use is more convenient.
As a preferred mode of the present invention, a sliding shaft 1201 is fixed to the back of the spring bar 12; two connecting sliding sleeves 13 are connected to the sliding shaft 1201 in a sliding manner; a slide bar 14 is fixed on both connecting slide sleeves 13; the outer sides of the sliding rods 14 are respectively fixed with a bolt 15; the outer part of the bolt 15 is provided with a positioning ring 702 matched with the bolt; the positioning ring 702 is fixed on the half ball head 701; a slide bar connecting block 1401 is fixed on the slide bar 14; the slide bar connecting block 1401 is fixed on the surface of the inflatable balloon 6;
the end of the steel air pipe 17 is connected with an air pipe quick connector 1701; the inflatable air bag 6 is connected with a quick connecting pipe 601 which is matched with the quick tracheal joint 1701 for use; the top of the spring strip 12 is provided with an opening for the quick connecting pipe 601 to pass through, and the quick connecting pipe 601 is rotationally connected with the inner side wall of the opening; enabling the quick connect tube 601 to have a larger swing amplitude capability relative to the spring bar 12.
Both tracheal quick connector 1701 and quick connector 601 are not substantially different from the prior art, so that, not specifically stated, quick connector 601 is capable of forming a detachable connection on tracheal quick connector 1701; the connecting sliding sleeve 13 can slide on the sliding shaft 1201, so that the sliding rod 14 and the bolt 15 can slide along the length direction of the sliding shaft 1201; the plug 15 can be inserted into or pulled out from the positioning ring 702;
since the slide bar connection block 1401 is fixed on the surface of the expansion bladder 6 and the spring bar 12 and the expansion bladder 6 are freely compressed before the expansion bladder 6 is mounted on the guide tube 7, the slide bar 14 is easily pushed when the expansion bladder 6 is not fully inflated, and the latch 15 is easily detached from the positioning ring 702. In the working state, the inflatable bag 6 is filled with air, the inflatable bag 6 is in a fully opened state, and the slide bar connecting block 1401 is fixed on the surface of the inflatable bag 6, so that a large force is required to pull the plug 15 out of the positioning ring 702.
For this reason, the expansion airbag 6 can make the latch 15 have a self-locking function on the positioning ring 702 in the inflated state; conversely, in the inflated airbag 6 exhaust state, the latch 15 is easily detached from the retainer ring 702, corresponding to the unlocking function.
The quick connector 1701 of the air pipe is connected with the quick connecting pipe 601, and the plug 15 is inserted into the positioning ring 702 after the expansion air bag 6 is inflated, so that the expansion air bag 6, the spring strip 12 and the guide pipe 7 are connected; the quick connector 1701 of the air pipe is separated from the quick connecting pipe 601, and the bolt 15 is pulled out from the positioning ring 702 after the air of the expansion air bag 6 is exhausted, so that the expansion air bag 6, the spring strip 12 and the guide pipe 7 are separated and disassembled; in the mechanism, the expansion air bag 6 and the spring strip 12 which are in direct contact with the organ can be separated on the guide tube 7, so that the whole expanding device is convenient to clean and disinfect, the expansion air bag 6 and the spring strip 12 can be independently replaced, and the expansion air bag 6 and the spring strip 12 can also be replaced as disposable.
As a preferred mode of the invention, the air passage switching assembly comprises an air passage adjusting pin 5 and an adjusting nut 9 fixed on the outer side wall of the air distribution pipe 4; the air path adjusting pin 5 is provided with pin external threads 501 matched with the adjusting nut 9; the pin external thread 501 is in threaded connection with the adjusting nut 9; a first channel 502 and a second channel 503 are arranged on the pin body of the air path adjusting pin 5; the axis of the first channel 502 and the axis of the second channel 503 are not on the same plane; the axle center of the first channel 502 and the axle center of the telescopic gas dividing channel 401 are arranged on the same plane; the axis of the second passage 503 and the axis of the expansion gas separation pipe 402 are arranged on the same plane;
when the second channel 503 is connected to the expansion gas distribution pipe 402, the first channel 502 is not connected to the expansion gas distribution pipe 401; while the first passage 502 is in communication with the telescopic gas separation passage 401, the second passage 503 is not in communication with the expansion gas separation pipe 402; when the air passage adjusting pin 5 rotates to a certain angle range, the expansion air distribution pipeline 402 and the telescopic air distribution channel 401 are in a cut-off state; the air channel adjusting pin 5 rotates in the adjusting nut 9 to switch the on-off states of the expansion air distribution pipeline 402 and the telescopic air distribution channel 401, and the switching is convenient and simple.
As a preferred mode of the present invention, the axis of the first channel 502 is a first axis; the axis of the second channel 503 is a second axis, and the included angle between the first axis and the second axis is a second included angle β; the second included angle beta is between 25 and 50 degrees; the second included angle beta is an acute angle between 25 degrees and 50 degrees, so that the switching speed between the two gas paths of the expansion gas distribution pipeline 402 and the telescopic gas distribution channel 401 is higher, the switching efficiency is higher, and the expansion gas distribution pipeline 402 and the telescopic gas distribution channel 401 are switched to be in a disconnected state, have a larger angle range, are easier to switch to the state that the expansion gas distribution pipeline 402 and the telescopic gas distribution channel 401 are both in the disconnected state, are high-efficiency to be adjusted, and can be easier and faster to enter the operation state;
furthermore, even if the air path adjusting pin 5 rotates by a small extent in the working state, the expansion air distribution pipeline 402 and the telescopic air distribution channel 401 can be kept in the open state, and the stability of the opening state is ensured.
As a preferred mode of the present invention, the second included angle β is 35 °.
As a preferable mode of the present invention, the fixed handle 201 and the air passage adjusting pin 5 are arranged in the circumferential direction of the piston cylinder 3; the side surface of the fixed handle 201 is a handle side surface 201a; the axis of the air path adjusting pin 5 is the pin axis; the included angle between the pin shaft center and the handle side surface 201a is a first included angle alpha; the first included angle alpha is 30-90 degrees; the length direction of the gas passing pipe passage 703 and the handle side surface 201a are arranged in parallel with each other;
the length direction of the gas passing pipe 703 and the handle side surface 201a are parallel to each other, so that the length direction of the handle side surface 201a is consistent with the spreading direction of the spreading device, and the direction of fixing the handle 201 is generally horizontal in actual use;
the included angle between the fixed handle 201 and the air passage adjusting pin 5 is set to be an acute angle, so that the fixed handle 201 and the air passage adjusting pin 5 are dislocated, and the adjustment is more convenient; moreover, the air passage adjusting pin 5 and the fixed handle 201 are all operable components of the device, and the air passage adjusting pin 5 and the pressure lever handle 101 are positioned on the same side, so that the operation and the observation are more convenient.
As a preferred mode of the present invention, the first included angle α is 60 °.
In the first ventilation state, the pressure lever handle 101 and the fixed handle 201 are held by hand, when the air passage switching component is switched to a state of cutting off the telescopic air distribution channel 401 and simultaneously switching on the expansion air distribution channel 402, the air in the piston cylinder 3 enters the expansion air bag 6 from the expansion air distribution channel 402, the first long channel 801, the connecting hose 18, the sliding block air inlet 1102, the sliding block main channel 1101 and the steel air pipe 17 through the movement of the piston 10, and the expansion air bag 6 is inflated, and naturally, the piston 10 is required to be pulled back before the air bag is inserted into a body, so that the air in the expansion air bag 6 is discharged, and the volume of the expansion air bag 6 is reduced to the minimum; in the second ventilation state, when the air passage switching component is switched to a state of switching on the telescopic air distribution channel 401 and simultaneously switching off the expansion air distribution pipeline 402, the air in the piston cylinder 3 is fed into the telescopic rubber air bag 16 from the telescopic air distribution channel 401 and the second long channel 802 through the movement of the piston 10, so that the telescopic rubber air bag 16 stretches, the telescopic rubber air bag 16 pushes the sliding block 11 to slide in the guide pipe 7, the steel air pipe 17 drives the top end of the spring strip 12 to move downwards, and as the bottom of the spring strip 12 is hinged, the steel air pipe 17 bends outwards to form an arc shape after moving downwards, so that the expanding action is realized; after the telescopic rubber air bag 16 is exhausted and contracted, the sliding block 11 and the steel air pipe 17 move upwards, and the spring strip 12 realizes the action of accelerating and contracting (resetting); after the two ventilation states are used in sequence, a secondary expansion (comprising expansion of an air bag and bending expansion of a spring) is formed, and in a third ventilation state, the air passage switching assembly is switched to a state of cutting off the telescopic air distribution channel 401 and the expansion air distribution pipeline 402 in a working state or in a standby state, and air in the piston cylinder 3 cannot pass through the telescopic air distribution channel 401 and the expansion air distribution pipeline 402, so that the expansion air bag 6 and the telescopic rubber air bag 16 keep the current use state.
In the structure, the air inlet and outlet of the piston cylinder 3 are used for controlling the expansion and contraction of the expansion air bag 6 and the expansion and retraction actions of the spring strips 12, so that the two-stage expansion is realized, the expansion of the spring strips 12 can be greatly realized, the expansion air bag 6 on the surface of the spring strips 12 is of a flexible structure and is in flexible contact with the expanded organ, and the risk of wound on the expanded organ in the operation process is reduced.
In the structure, the piston cylinder 3 with a large piston is used as the power for the linear motion of the sliding block 11, the motion of the piston 10 with a small stroke can control the large-amplitude bending of the spring strip 12, and the spreading transmission efficiency is high; the spring strips 12 are high in outward expansion efficiency, high in expanding speed and capable of improving operation efficiency; in addition, in the cut-off state of the telescopic air distribution channel 401 and the expansion air distribution pipeline 402, the stability of the posture of the spring strip 12 and the expansion air bag 6 is strong, so that the operation is more stable; the gas circuit switching assembly is only operated before and after adjustment, and long-time control of the gas circuit switching assembly is not needed, so that single-hand operation can be realized in the opening process, and when adjustment is performed, only two hands are needed for alternate control, so that the use is more convenient.
The principle of locking the latch 15 in the positioning ring 702 when the inflatable bladder 6 is full of gas in this configuration is further described below; and the principle of easy removal of the pins 15 from the retaining ring 702 in the state where the inflated balloon 6 is not full of gas.
In this structure, as shown in fig. 16 to 18, a slide shaft 1201 is fixed to the back of the spring bar 12; the sliding shaft 1201 is slidably connected with two connecting sliding sleeves 13; a slide bar 14 is fixed on both connecting slide sleeves 13; the outer sides of the slide bars 14 are respectively fixed with a bolt 15; a slide bar connecting block 1401 is fixed on the slide bar 14; the slide bar connecting block 1401 is fixed on the surface of the inflatable balloon 6;
the outer part of the bolt 15 is provided with a positioning ring 702 matched with the bolt; the retaining ring 702 is fixed to the half ball head 701. When the inflatable air bag 6 is inflated, the surface of the inflatable air bag is expanded, the slide rod connecting block 1401 drives the slide rod 14 and the plug pin 15 to slide back along the sliding shaft 1201, and then the plug pin 15 is driven to be gradually inserted into the positioning ring 702 matched with the slide rod connecting block, so that self-locking is realized, and the plug pin 15 can be pulled out of the positioning ring 702 only by a large force until the inflatable air bag is locked. Conversely, when the inflatable bag 6 is deflated and contracted, the surface of the inflatable bag 6 is contracted, the force applied to the slide rod 14 and the latch 15 is reduced, and the latch 15 is easily pulled out from the positioning ring 702.
In the structure, the quick connector 1701 of the air pipe is connected with the quick connecting pipe 601, and the plug 15 is inserted into the positioning ring 702 after the inflatable air bag 6 is inflated, so that the inflatable air bag 6 and the spring strip 12 are connected with the guide pipe 7; the quick connector 1701 of the air pipe is separated from the quick connecting pipe 601, and the bolt 15 is pulled out from the positioning ring 702 after the air of the expansion air bag 6 is exhausted, so that the expansion air bag 6, the spring strip 12 and the guide pipe 7 are separated and disassembled; the inflatable air bag 6 and the spring strip 12 which are in direct contact with the organ can be separated on the guide tube 7, so that the whole opening device is convenient to clean and disinfect, the inflatable air bag 6 and the spring strip 12 can be independently replaced, and the inflatable air bag 6 and the spring strip 12 can also be replaced as disposable.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the invention are therefore intended to be embraced therein.
Claims (7)
1. The utility model provides a little for invasive surgery struts device of abdominal cavity which characterized in that: the device comprises a piston cylinder (3), a piston (10) connected in the piston cylinder (3) in a sliding way, a sliding sleeve (2) fixed at one end of the piston cylinder (3) and a gas distribution pipe (4) fixed at the other end of the piston cylinder (3); a long tubule (8) is fixed on the gas-distributing pipe (4);
a pressing rod (1) is connected in a sliding manner in the sliding sleeve (2), and the pressing rod (1) is fixed on the piston (10); one end of the compression bar (1) extending out of the sliding sleeve (2) is fixedly provided with a compression bar handle (101); a fixed handle (201) is fixed on the sliding sleeve (2);
a telescopic gas distribution channel (401) and an expansion gas distribution pipeline (402) are arranged in the gas distribution pipe (4); a first long channel (801) and a second long channel (802) are arranged on the long tubule (8); the telescopic gas distribution channel (401) is communicated with the second long channel (802); the first long channel (801) is communicated with the expansion gas distribution pipeline (402); the first long channel (801) and the second long channel (802) are communicated with the inner cavity of the piston cylinder (3); an air passage switching assembly is arranged in the air distribution pipe (4); the gas circuit switching component is used for switching three ventilation states, namely switching on the expansion gas distribution pipeline (402) while switching off the telescopic gas distribution channel (401), switching on the expansion gas distribution pipeline (402) while switching on the telescopic gas distribution channel (401), and switching off the expansion gas distribution pipeline (402) and the telescopic gas distribution channel (401);
the bottom end of the long tubule (8) is sleeved with a guide pipe (7); a half ball head (701) is fixed at the tail end of the guide pipe (7); a sliding block (11) is connected inside the guide pipe (7) in a sliding way; a main slider channel (1101) and a slider air inlet (1102) are arranged in the slider (11); the main slider channel (1101) is connected to the slider air inlet (1102); the tail end of the first long channel (801) is communicated with the sliding block air inlet (1102) through a connecting hose (18); two ends of the sliding block (11) are fixed with steel air pipes (17) communicated with the main sliding block channel (1101);
two sides of the guide pipe (7) are provided with a gas passing pipe channel (703); the length direction of the air passage channel (703) is consistent with the length direction of the guide pipe (7); spring strips (12) are arranged on two sides of the guide tube (7); the pipe body of the steel air pipe (17) is hinged to one end of the spring strip (12); the other end of the spring strip (12) is hinged with the half ball head (701); the outer side surface of the spring strip (12) is fixed with an expansion air bag (6); the tail end of the steel air pipe (17) is connected with the expansion air bag (6); a telescopic rubber air bag (16) is fixed at the top of the sliding block (11);
the top end of the telescopic rubber air bag (16) is fixed on the long tubule (8); the telescopic rubber air bag (16) is communicated with the second long channel (802).
2. The spreader device for minimally invasive abdominal surgery according to claim 1, wherein: a sliding shaft (1201) is fixed on the back of the spring strip (12); two connecting sliding sleeves (13) are connected to the sliding shaft (1201) in a sliding manner; a slide bar (14) is fixed on both the connecting sliding sleeves (13); the outer sides of the sliding rods (14) are respectively fixed with a bolt (15); a positioning ring (702) matched with the bolt (15) is arranged outside the bolt; the positioning ring (702) is fixed on the semi-ball head (701); a slide bar connecting block (1401) is fixed on each slide bar (14); the slide bar connecting block (1401) is fixed on the surface of the expansion air bag (6);
the tail end of the steel air pipe (17) is connected with an air pipe quick connector (1701); the inflatable air bag (6) is connected with a quick connecting pipe (601) which is matched with the quick tracheal joint (1701); the top of the spring strip (12) is provided with an opening for the quick connecting pipe (601) to pass through, and the quick connecting pipe (601) is rotationally connected with the inner side wall of the opening.
3. The spreader device for minimally invasive abdominal surgery according to claim 1, wherein: the gas circuit switching assembly comprises a gas circuit adjusting pin (5) and an adjusting nut (9) fixed on the outer side wall of the gas distribution pipe (4); the air passage adjusting pin (5) is provided with pin external threads (501) matched with the adjusting nut (9); the pin external thread (501) is in threaded connection with the adjusting nut (9); a first channel (502) and a second channel (503) are arranged on the pin body of the air passage adjusting pin (5); the axis of the first channel (502) and the axis of the second channel (503) are not on the same plane; the axis of the first channel (502) and the axis of the telescopic gas distribution channel (401) are arranged on the same plane; the axis of the second channel (503) and the axis of the expansion gas distribution pipeline (402) are arranged on the same plane.
4. A distraction device for minimally invasive abdominal surgery according to claim 3, wherein: the axis of the first channel (502) is a first axis; the axis of the second channel (503) is a second axis, and the included angle between the first axis and the second axis is a second included angle beta; the second angle β is set between 25 ° and 50 °.
5. The spreader device for minimally invasive abdominal surgery of claim 4, wherein: the second included angle beta is 35 degrees.
6. A distraction device for minimally invasive abdominal surgery according to claim 3, wherein: the fixed handle (201) and the air passage adjusting pin (5) are arranged along the circumferential direction of the piston cylinder (3); the side surface of the fixed handle (201) is a handle side surface (201 a); the axis of the air path adjusting pin (5) is the pin axis; the included angle between the pin shaft center and the handle side surface (201 a) is a first included angle alpha; the first included angle alpha is 30-90 degrees; the length direction of the gas passing pipe passage (703) is arranged in parallel with the handle side surface (201 a).
7. The spreader device for minimally invasive abdominal surgery of claim 6, wherein: the first included angle α is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310982925.XA CN116687478B (en) | 2023-08-07 | 2023-08-07 | Opening device for abdominal cavity minimally invasive surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310982925.XA CN116687478B (en) | 2023-08-07 | 2023-08-07 | Opening device for abdominal cavity minimally invasive surgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116687478A true CN116687478A (en) | 2023-09-05 |
| CN116687478B CN116687478B (en) | 2023-09-29 |
Family
ID=87831570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310982925.XA Active CN116687478B (en) | 2023-08-07 | 2023-08-07 | Opening device for abdominal cavity minimally invasive surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116687478B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117224211A (en) * | 2023-11-10 | 2023-12-15 | 河源市深河人民医院(暨南大学附属第五医院) | Minimally invasive interventional spine microsurgery device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08336538A (en) * | 1995-06-12 | 1996-12-24 | Olympus Optical Co Ltd | Vital operating appliance |
| US20030225432A1 (en) * | 2002-05-31 | 2003-12-04 | Baptiste Reginald C. | Soft tissue retraction device for an endoscopic instrument |
| CN105726075A (en) * | 2016-02-01 | 2016-07-06 | 山东瑞华同辉光电科技有限公司 | Visual extraperitoneal space balloon dilator for laparoscope |
| CN112244910A (en) * | 2020-11-05 | 2021-01-22 | 中南大学湘雅医院 | Distraction instrument for laparoscopic surgery |
| CN112515714A (en) * | 2020-11-06 | 2021-03-19 | 南昌大学第二附属医院 | Operation fixing device for fixing viscera in minimally invasive operation |
| CN113288254A (en) * | 2021-07-09 | 2021-08-24 | 上海市金山区亭林医院(中国福利会国际和平妇幼保健院金山分院) | Tissue exposure device for outward-turning laparoscope |
| CN113768556A (en) * | 2020-06-09 | 2021-12-10 | 上海交通大学医学院附属新华医院 | Built-in micro balloon joint distraction device |
| CN113855122A (en) * | 2021-11-03 | 2021-12-31 | 上海市金山区亭林医院(中国福利会国际和平妇幼保健院金山分院) | Abdominal wall retractor for minimally invasive laparoscopic surgery |
| JP2022143033A (en) * | 2021-03-17 | 2022-10-03 | テルモ株式会社 | Medical device and application method thereof |
-
2023
- 2023-08-07 CN CN202310982925.XA patent/CN116687478B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08336538A (en) * | 1995-06-12 | 1996-12-24 | Olympus Optical Co Ltd | Vital operating appliance |
| US20030225432A1 (en) * | 2002-05-31 | 2003-12-04 | Baptiste Reginald C. | Soft tissue retraction device for an endoscopic instrument |
| CN105726075A (en) * | 2016-02-01 | 2016-07-06 | 山东瑞华同辉光电科技有限公司 | Visual extraperitoneal space balloon dilator for laparoscope |
| CN113768556A (en) * | 2020-06-09 | 2021-12-10 | 上海交通大学医学院附属新华医院 | Built-in micro balloon joint distraction device |
| CN112244910A (en) * | 2020-11-05 | 2021-01-22 | 中南大学湘雅医院 | Distraction instrument for laparoscopic surgery |
| CN112515714A (en) * | 2020-11-06 | 2021-03-19 | 南昌大学第二附属医院 | Operation fixing device for fixing viscera in minimally invasive operation |
| JP2022143033A (en) * | 2021-03-17 | 2022-10-03 | テルモ株式会社 | Medical device and application method thereof |
| CN113288254A (en) * | 2021-07-09 | 2021-08-24 | 上海市金山区亭林医院(中国福利会国际和平妇幼保健院金山分院) | Tissue exposure device for outward-turning laparoscope |
| CN113855122A (en) * | 2021-11-03 | 2021-12-31 | 上海市金山区亭林医院(中国福利会国际和平妇幼保健院金山分院) | Abdominal wall retractor for minimally invasive laparoscopic surgery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117224211A (en) * | 2023-11-10 | 2023-12-15 | 河源市深河人民医院(暨南大学附属第五医院) | Minimally invasive interventional spine microsurgery device |
| CN117224211B (en) * | 2023-11-10 | 2024-01-09 | 河源市深河人民医院(暨南大学附属第五医院) | Minimally invasive interventional spine microsurgery device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116687478B (en) | 2023-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116687478B (en) | Opening device for abdominal cavity minimally invasive surgery | |
| US20180092635A1 (en) | Surgical device and accessories | |
| US11992194B2 (en) | Substantially rigid and stable endoluminal surgical suite for treating a gastrointestinal lesion | |
| US20170215904A1 (en) | Specimen retrieval device, method and kit | |
| CA2039414C (en) | Abdominal cavity organ retractor | |
| US5271385A (en) | Abdominal cavity organ retractor | |
| US5656012A (en) | Surgical retractor | |
| US5860987A (en) | Surgical retractor | |
| JP3369219B2 (en) | Surgical retractor | |
| US7112172B2 (en) | Endoscopic organ retraction system and method of using the same | |
| JP4138663B2 (en) | Surgical wound retractor | |
| JP3307392B2 (en) | Endoscope retraction device for surgery | |
| JP5816287B2 (en) | Micro-laparoscopic device and arrangement thereof | |
| US5511564A (en) | Laparoscopic stretching instrument and associated method | |
| US5667479A (en) | Method for resection of an anatomic structure | |
| US5236437A (en) | Surgical instrument assembly and associated technique | |
| US7850600B1 (en) | Laparoscopic instrument and trocar system and related surgical method | |
| US5993461A (en) | Laparoscopic instrument for manipulating the uterus during laparoscopic surgery | |
| EP2374403A1 (en) | Sealed surgical access device | |
| US20090326518A1 (en) | Devices and methods for manipulating tissue | |
| JPH04226620A (en) | Surgical trocar | |
| WO2012010910A1 (en) | Surgical retraction device and procedure | |
| CN114748117A (en) | Strutting assembly based on medical laparoscope | |
| CN203789974U (en) | Anvil of surgical instrument and surgical instrument | |
| CN112617716A (en) | Controllable bending endoscope and using method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |