CN108523951B - Laparoscope liver rotating traction device - Google Patents
Laparoscope liver rotating traction device Download PDFInfo
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- CN108523951B CN108523951B CN201810583304.3A CN201810583304A CN108523951B CN 108523951 B CN108523951 B CN 108523951B CN 201810583304 A CN201810583304 A CN 201810583304A CN 108523951 B CN108523951 B CN 108523951B
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- 210000004185 liver Anatomy 0.000 title claims abstract description 31
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Classifications
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- 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
Abstract
The invention relates to a laparoscope liver rotation traction device which comprises an outer sleeve, a sealing piece, a control assembly, a traction assembly and a retraction assembly, wherein the outer sleeve is sleeved on the outer sleeve; the control assembly comprises a fixed handle, a movable handle and a driving connecting rod, the traction assembly comprises a fixed arm, a movable arm, a sterile rope and a steel wire, the retraction assembly comprises a shell, a ratchet component, a spring poking pin and a rocking handle, the ratchet component is an inner ratchet and comprises a ratchet, a pawl and a reed limiting the position of the pawl; one end of the sterile rope is fixedly connected to the end head of the fixed arm, enters the middle section of the fixed arm along the movable arm, and the other end of the sterile rope is connected with a steel wire; the other end of the steel wire enters the shell along the fixed handle and is wound on the outer edge of the ratchet wheel. The traction device completes the operation of liver rotation traction in a flexible traction mode through the sterile rope sleeve, is simple to operate and convenient to adjust, is not easy to cause organ damage, has a good surgical field exposure effect, and has positive technical significance.
Description
Technical Field
The invention relates to a laparoscope liver-rotating traction device, and belongs to the field of medical surgical instruments.
Background
In the field of medical surgery, with the continuous development of surgical techniques and modes, the transition from traditional open surgery to minimally invasive surgery is gradual; among them, laparoscopic surgery is also receiving increasing attention as laparoscopic techniques are developed. At present, laparoscopic surgery occupies a semi-wall river mountain in the surgical operation, liver is a substantial organ, portal vein and hepatic artery are provided with dual blood supply, blood circulation is rich, section bleeding and biliary leakage are easy to occur when the liver is resected, and certain difficulty is brought to laparoscopic surgery. With the progress of technology, the continuous innovation of laparoscopic instruments is that laparoscopic hepatectomy is greatly advanced, the range of liver resection is further improved, and in the past, laparoscopic liver operations are considered to be relatively contraindicated, such as larger tumors of the right liver, and currently, laparoscopic technology is gradually started to be applied. Compared with the left laparoscopic liver resection, the right laparoscopic liver resection has the advantages of long operation time, more bleeding in operation, long hospitalization time after operation, higher liver gate blocking rate, more obvious rise of the aminotransferase level after operation, and prompts that the right laparoscopic liver resection is more difficult than the left laparoscopic liver resection. The laparoscopic right hepatectomy, in particular to the resection operation of the right hepatic rear lobe, has the main problems that the dissection position of the right hepatic rear lobe is deeper, the operation space under the endoscope is narrow, and the separation and the exposure are difficult, so that how to better expose the operation part of the right hepatic rear lobe operation is important. At present, a first assistant is used for grasping the liver by using a laparoscopic blunt forceps and pulling the liver to the left side so as to expose the right rear lobe of the liver; if the holding force is small, the liver is easy to slip, and if the holding force is too large, the liver is easy to tear; and the exposure effect of the operation field is poor.
In the chinese patent document with application publication number CN107928724a, there is also disclosed a surgical instrument named "a tissue retractor suspension for laparoscope", which has the technical scheme that "comprises an operating lever (3) and a handle (4) forming a laparoscopic surgical instrument and at least one pair of clamps, and is characterized in that: each pair of clamps is flexibly connected through a connecting wire (115), at least one clamp is provided with a wire winding device for winding the connecting wire, and the tail end of each clamp is respectively provided with a clamp pull rod (113); the operating rod (3) is detachably connected with the clamp pull rod (113) at the tail end of each clamp through the operating pull rod (303), and the handle (4) controls the action of the clamp through the operating pull rod (303). The following defects exist in the technical scheme:
(1) The clamp is still used for rigidly clamping the organ, so that the problem of easy damage to the organ still exists;
(2) The traction stress point of the organ is other parts clamped by the second clamp, and the traction force of the organ is influenced by the tension of the wire winder; not only is difficult to adjust in the operation process, but also is easy to cause damage to other clamped parts;
(3) In the scheme, in use, the operations such as clamping, releasing, hooking and the like are needed to be carried out on different clamps in the abdominal cavity, so that the operation is complex, and the operation risk is easily increased.
Therefore, in order to solve the above-mentioned problems, it is a urgent need for a person skilled in the art to design a laparoscopic liver rotation traction device that can more conveniently and safely and effectively traction the liver.
Disclosure of Invention
In order to solve the problems of inconvenient operation and easy damage to organs and other parts of an organ traction device used by a laparoscope in the prior art, the invention provides the laparoscopic liver-rotating traction device which adopts a flexible traction mode to finish the operation of liver-rotating traction, has the advantages of simple operation, convenient adjustment, difficult liver tearing, difficult slipping during effective liver traction and good operation field exposure effect.
The invention adopts the following technical scheme:
the celioscope liver rotation traction device is characterized by comprising an outer sleeve, a sealing piece, a control component, a traction component and a retraction component;
the control assembly comprises a fixed handle, a movable handle and a driving connecting rod, the traction assembly comprises a fixed arm, a movable arm, a sterile rope and a steel wire, the retraction assembly comprises a shell, a ratchet component, a spring poking pin and a rocking handle, the ratchet component is an inner ratchet and comprises a ratchet, a pawl and a reed limiting the position of the pawl;
one end of the sterile rope is fixedly connected to the end head of the fixed arm, enters the middle part of the fixed arm along the movable arm, and the other end of the sterile rope is connected with one end of the steel wire; the steel wire enters the shell along the fixed arm and the fixed handle and is wound on the outer edge of the ratchet wheel; the fixed arm and the fixed handle are connected into a whole; the rear end of the movable arm is hinged with the fixed arm through a pin or a rotating shaft;
the movable handle is arranged in a groove at the rear part of the fixed handle, the middle part of the movable handle is connected with the fixed handle through a rotating shaft, and the upper end of the movable handle is hinged with the driving connecting rod; the other end of the driving connecting rod is hinged with the movable arm and drives the movable arm to rotate around the shaft;
the outer sleeve is a hollow metal pipe, and the inner diameter of the outer sleeve is larger than the overall maximum radial dimension of the fixed arm and the driving connecting rod; the sealing element is arranged at the opening part of the outer sleeve and is provided with an opening for the driving connecting rod, the steel wire and the fixing arm to pass through.
The round shell is fixedly connected to the fixed handle and is provided with an opening for the steel wire to enter and exit; the ratchet wheel is connected with the shell through a bearing, and a fixed ring fixed on one side of the shell is arranged inside the ratchet wheel; the pawl and the reed are both arranged on one outward side of the fixed ring, the pawl is connected through the rotating shaft, the reed is fixedly connected through the fixed pile, and the other end of the reed is connected to the pawl; a long hole is formed in the shell on the same side as the fixed ring, and a spring poking pin for poking the spring is arranged in the long hole; the rocking handle and the spring pulling pin are positioned at the opposite side of the shell, the rotating shaft of the rocking handle is coaxial with the ratchet wheel, and the inner end of the rocking handle is connected to the inner side of the ratchet wheel.
Preferably, the movable arm is of a hollow tubular structure with an inner diameter larger than the outer diameter of the sterile rope, the fixed arm is of a C-shaped groove structure, and the inner diameter of the groove is larger than the outer diameter of the movable arm.
Or preferably, the fixed handle and the movable handle are both provided with finger sleeves, and the two handles are also provided with saw-tooth lock catches which form lap joint.
Or preferably, the front ends of the fixed arm and the movable arm are round heads, and the end faces of the two wings of the fixed arm are subjected to arc treatment.
Or preferably, the rear end of the movable arm is a ball head; or a pit for accommodating the rear end of the movable arm when the fixed arm is opened is arranged at the bottom of the fixed arm.
The invention has the following advantages:
(1) The sterile rope is adopted as a flexible traction mode which is in direct contact with the liver, so that the device is safer than a common clamping traction mode;
(2) The movable arm and the fixed arm are used for controlling the rope loop of the sterile rope, so that the operation can be completed in one abdomen opening by one hand, the use is more convenient, and the injury to a patient is smaller;
(3) The retraction assembly of the ratchet structure is convenient to operate, can be automatically locked and is convenient to use.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic partial cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view of a part of a retractable assembly according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a retraction assembly according to an embodiment of the present invention;
FIG. 5 is an enlarged partial schematic view of FIG. 4;
wherein: 1. outer sleeve 2, fixed handle 3, movable handle 4, drive link 5, fixed arm 6, movable arm 7, sterile cord 8, housing 9, toggle pin 10, rocker handle 11, ratchet 12, pawl 13, reed 14, finger sleeve 15, serrated latch 16, fixed ring 17, steel wire 18, seal.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1, the embodiment is a laparoscopic liver rotation traction device, which comprises an outer sleeve 1, a sealing element 18, a control component, a traction component and a retraction component;
the control assembly comprises a fixed handle 2, a movable handle 3 and a driving connecting rod 4, the traction assembly comprises a fixed arm 5, a movable arm 6, a sterile rope 7 and a steel wire 17, the retraction assembly comprises a shell 8, a ratchet component, a spring pulling pin 9 and a rocking handle 10, the ratchet component comprises a ratchet 11, a pawl 12 and a reed 13 for limiting the position of the pawl, the ratchet 11 is an inner ratchet, and the ratchet is arranged on the inner ring of a wheel ring;
the driving connecting rod 4 can be in a sheet shape or a cylindrical shape, and the outer surface is smooth.
The movable arm 6 is of a hollow tubular structure with the inner diameter larger than the outer diameter of the sterile rope 7, one end of the sterile rope 7 is fixedly connected to the front end of the fixed arm 5, and the fixing mode can be gluing, riveting or perforation, knotting, tying and the like at the front end of the fixed arm 5. The sterile rope 7 extends to the middle section of the fixed arm 5 through the cavity of the movable arm 6, the other end of the sterile rope is fixedly connected with the steel wire 17, and during connection, the ends of the sterile rope 7 and the steel wire 17 are respectively provided with a loop, and the two loop loops are respectively bound tightly after being crossed and sleeved to form an iron chain-shaped retaining ring, so that the diameter of a binding part does not influence the movement of the sterile rope 7 and the steel wire 17; the steel wire 17 sequentially passes through the groove of the fixed arm 5 and the channel in the fixed handle 2, and is wound around the ratchet wheel 11 after entering the shell 8, and the end head is fixed on the outer edge of the ratchet wheel 11 (as shown in figure 3); the fixed arm 5 is connected with the fixed handle 2 into a whole;
the movable handle 3 is arranged in a groove at the rear part of the fixed handle 2, the middle part of the movable handle is connected with the fixed handle 2 through a rotating shaft, and the upper end of the movable handle is hinged with the driving connecting rod 4; the other end of the driving connecting rod 4 is hinged with the movable arm 6 and drives the movable arm 6 to rotate around the shaft;
the sterile rope 7 is a textile rope which has small elasticity and enough strength and is not easy to fall off fiber, and is used after being subjected to sterile treatment; in order to avoid snagging, the diameter of the sterile line 7 should not be too small, it is recommended that it is not less than 3mm. When the steel wire 17 is selected, the rigidity is required to be smaller on the premise of ensuring the strength so as to be convenient for winding.
As shown in fig. 2, the movable arm 6 and the fixed arm 5 are attached, and the connecting portion is schematically shown in cross section; the fixed arm 5 is of a C-shaped groove structure, and the inner diameter of the groove is larger than the outer diameter of the movable arm 6. In such a dimensional relationship, the movable arm 6 and the fixed arm 5 are integrally bonded to each other, so that the movable arm can easily pass through the outer sleeve 1 and can be prevented from touching the viscera as much as possible. The rear end of the movable arm 6 is hinged in the groove of the fixed arm 5 through pins at two sides, and the connection mode can avoid the obstruction to the conveying of the sterile rope 7; the pins on both sides are located on a line passing through the central axis of the movable arm 6. One end (called the rear end) of the movable arm 6 connected with the fixed arm 5 is a ball head, and the extended lines of pins at two sides penetrate through the ball center position, or a pit for accommodating the rear end of the movable arm 6 is arranged on the fixed arm 5; both of these arrangements allow the movable arm 6 to be opened without the tip interfering with the fixed arm 5. The cooperation of the pin with the fixed arm 5 and the movable arm 6 is neither tight enough to affect the movement nor loose enough to come out of the pin. Because the number of times of opening the movable arm 6 is small in each operation, the pin can not move due to the fact that the pin is opened and closed for many times, and the application is not affected.
The outer sleeve 1 is a hollow metal pipe, the inner wall and the outer wall are smooth, and the inner diameter is larger than the whole maximum radial dimension of the fixed arm 5 and the driving connecting rod 4; the mouth part of the outer sleeve 1 is provided with a convex lip part; the seal 18 is provided with a flange which accommodates the lip of the outer sleeve 1 to ensure that the seal 18 does not move when the drive link and wire are active. The laparoscopic surgery requires the abdominal cavity to be inflated with gas at a pressure of 12-15mmHg, and the seal 18 is mainly used to ensure that gas does not leak from the site of the device during the surgery. The air pressure can be monitored in real time in the operation process and can be automatically supplemented after the air pressure is reduced, so that a small amount of air leakage can not affect the operation. The sealing member 18 is made of rubber material with good air tightness, such as IIR butyl rubber and the like; correspondingly, vegetable or animal grease can be smeared on the surfaces of the driving connecting rod 4 and the steel wire 17 to serve as a lubricant and an air-tight agent. The sealing element 18 is round and matched with the outer sleeve 1, and is provided with an opening for the driving connecting rod 4, the steel wire 17 and the fixed arm 5 to pass through; wherein the opening height of the driving connecting rod 4 is slightly larger than the height of the connecting rod, because the driving connecting rod 4 has small displacement in the height direction; in the present embodiment, for the sake of assembly, the seal 18 is divided into left and right 2 semicircles, and the diameters of the divided 2 semicircles divide the opening through which the drive link 4, the wire 17, and the fixed arm 5 pass into left and right 2 portions, respectively.
The structure of the retraction assembly is shown in fig. 1, 3 and 4; the shell 8 is round and fixedly connected to the fixed handle 2, and is provided with an opening for the steel wire 17 to enter and exit; as shown in fig. 4, the ratchet 11 is coaxially connected to the inner side of the housing 8 through bearings on two sides, wherein the housing 8 is respectively connected to the outer rings of the bearings, and two side surfaces of the ratchet 11 are respectively connected to the inner rings of the bearings, and the connection mode can be welding or clamping; this structure allows the ratchet 11 to freely rotate around the central axis of the housing 8, while the space inside the bearing inner race is not interfered by the rotation of the ratchet 11. The pawl 12 and the reed 13 are both arranged on a fixed ring 16, and the fixed ring 16 is coaxial with the shell 8 and is fixed on one side inner surface of the shell 8 and positioned in the ratchet 11. The connecting end of the pawl 12 is a rotating shaft; the reed 13 is a soft reed, the strength is only enough to support the weight of the pawl 12 so as not to drop, the connecting end of the reed and the fixed ring 16 is welded, riveted or screwed by a fixed pile, and the connecting end of the reed and the pawl 12 is welded or hinged; when the ratchet 11 rotates, the spring 13 restricts the position of the pawl 12 by its own elasticity. As shown in fig. 5, the spring-pulling pin 9 is disposed in a long hole on the surface of the housing 8, the diameter of the body is smaller than the width of the long hole, and annular protrusions with diameters larger than the width of the long hole are respectively disposed at the inner side and the outer side of the housing 8 so as to limit the axial position; the length outside the shell needs to meet the pinching or stirring requirement; the length of the toggle pin 9 in the housing is required to meet the requirement of toggling the reed 13. When the toggle pin 9 is pushed or toggled, the gesture cannot be greatly changed due to the limitation of the annular bulge, and the toggle pin mainly moves along the long hole of the shell 8; as shown by the broken line in fig. 3, the spring 13 is shifted by the spring shifting pin 9 to drive the pawl 12 to rotate to a position separated from the ratchet 11, so that the ratchet 11 can conveniently rotate under the action of the rocking handle 10, and the tightening steel wire 17 is wound. Before the toggle pin 9 is actuated, the rocking handle 10 needs to be rocked to slightly reverse the rotation, and the pawl 12 is released from the lock position. In this embodiment, the long hole is an arc hole with the housing 8 as a center.
The rocking handle 10 and the spring pulling pin 9 are arranged on different sides to avoid interference, a rocking handle shaft penetrates through the center of the shell 8, a bearing is arranged at the penetrating position so that the rocking handle 10 can rotate, the rocking handle shaft is coaxial with the ratchet wheel 11, and the inner side of the rocking handle shaft is fixedly connected with the inner side of the ratchet wheel 11. The outer edge of the ratchet wheel 11 is provided with a convex edge so as to standardize the position of the steel wire 17 when being wound.
The fixed handle 2 and the movable handle 3 are respectively provided with a fingerstall 14, and the two handles are also provided with saw-tooth lock catches 15 which form lap joint. The saw tooth lock catch 15 comprises 2 pieces of saw tooth-shaped components with cross sections, the 2 pieces of components are respectively fixed on the 1 finger stall 14, the saw tooth surfaces are opposite, and a lap joint can be formed by utilizing a saw tooth structure to be hooked and locked with each other. The fixed handle 2 and the movable handle 3 are made of metal, and when the lock is unlocked, the elasticity of the fixed handle 2 and the movable handle 3 is utilized to enable the 2 saw tooth-shaped members to be separated from a hooking state, and then the movable handle 3 is separated from an original vertical plane, so that the saw tooth structures cannot be contacted with each other, and the lock is released.
As shown in fig. 1, the front ends of the fixed arm 5 and the movable arm 6 are round heads; as shown in fig. 2, the end surfaces of the two wings of the fixed arm 5 are all processed with circular arcs; such an arrangement may avoid injuring the viscera as much as possible.
In the device, the part which is in contact with the human body comprises an outer sleeve 1, a driving connecting rod 4, a fixed arm 5 and a movable arm 6, and all adopt stainless steel materials.
The application method of the embodiment is as follows:
1. the movable arm 6 is integrated with the fixed arm 5 after being attached, the sealing element 18 is assembled on a rod-type assembly formed by the fixed arm 5 and the driving connecting rod 4 in a combined mode according to preset positions from left and right directions, the rod-type assembly penetrates through the outer sleeve 1, after the movable arm 6 and the fixed arm 5 extend to preset positions, the sealing element 18 is sleeved and fixed with the mouth part and the lip part of the outer sleeve 1, and under the extrusion action, the tightness of both the middle cutting opening and the penetrating opening of the 3 members is kept; because the fixed arm 5, the driving connecting rod 4, the steel wire 17 and the outer sleeve 1 are smooth components, the components can slide relatively along the sealing piece 18 without affecting the sealing effect;
2. passing the outer cannula 1 through a pre-completed surgical channel into the abdominal cavity; in the process, the laparoscopic image is combined to avoid contacting with organs as much as possible; the airtight seal in the process depends on the opening sealing piece of the operation channel, the outer surface of the outer sleeve 1 is smooth, and the airtight seal in the penetrating process is beneficial to keeping the airtight seal and the smooth entry;
3. when the device reaches a use position, an operator holds two handles by one hand and squeezes the movable handle 3, the movable arm 6 opens under the action of the driving connecting rod 4; at this time, the sterile rope 7 is pulled to pull the steel wire 17, and the ratchet 11 rotates anticlockwise to passively discharge the steel wire as shown in fig. 3; the presence of the pawl 12 prevents the ratchet 11 from reversing; when the movable arm 6 is unfolded in place, the sawtooth lock 15 is used for fixing the position of the movable handle 3;
4. the liver is sleeved by a rope sleeve formed by a sterile rope 7 between the movable arm 6 and the fixed arm 5, and the liver is pulled and rotated by operating the fixed handle 3 or the outer sleeve 1 to assist in completing the operation; the external sleeve 1 can be rotated at any time according to the needs in the operation process to adjust the pulling and rotating angles so as to meet the operation needs; during which the tightness is maintained due to the action of the seal 18 and the surgical port seal.
5. After the operation is completed, the rope sleeve formed by the sterile rope 7 is released from the liver; unlocking the sawtooth lock catch 15, opening the movable handle 3, and attaching the movable arm 6 to the fixed arm 5; the rocking handle 10 is rocked to slightly reverse so that the pawl 12 is disengaged from the locking position; pushing the toggle pin 9 along the long hole to toggle the reed 13 so that the pawl 12 leaves the ratchet 11; the ratchet 11 releases the unidirectional lock; subsequently, the rocking handle 10 is rotated, the ratchet 11 is rotated clockwise as shown in fig. 3, and the steel wire 17 is wound around the outer edge of the ratchet 11, so that the viscera is prevented from being pulled accidentally during the taking-out process;
6. after tightening the sterile string 7, the device is removed from the surgical tunnel.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention, and the parts not described in detail and shown in partial detail may be applied to the prior art and are not described in detail herein. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Claims (3)
1. A laparoscopic liver rotation traction device, comprising: the outer sleeve (1), the sealing piece (18), the control component, the traction component and the retraction component;
the control assembly comprises a fixed handle (2), a movable handle (3) and a driving connecting rod (4), the traction assembly comprises a fixed arm (5), a movable arm (6), a sterile rope (7) and a steel wire (17), the retraction assembly comprises a shell (8), a ratchet component, a spring poking pin (9) and a rocking handle (10), the ratchet component is an inner ratchet and comprises a ratchet (11), a pawl (12) and a reed (13) for limiting the position of the pawl (12);
one end of the sterile rope (7) is fixedly connected to the end head of the fixed arm (5), extends to the middle section of the fixed arm (5) along the movable arm (6), and the other end of the sterile rope is connected with a steel wire (17); the other end of the steel wire (17) enters the shell (8) along the fixed arm (5) and the fixed handle (2) and is wound on the outer edge of the ratchet wheel (11); the fixed arm (5) is connected with the fixed handle (2) into a whole; the rear end of the movable arm (6) is hinged with the fixed arm (5) through a pin or a rotating shaft;
the movable handle (3) is arranged in a groove at the rear part of the fixed handle (2), the middle part of the movable handle is connected with the fixed handle (2) through a rotating shaft, and the upper end of the movable handle is hinged with the driving connecting rod (4); the other end of the driving connecting rod (4) is hinged with the movable arm (6) and drives the movable arm (6) to rotate around the shaft;
the outer sleeve (1) is a hollow metal pipe, and the inner diameter of the outer sleeve is larger than the maximum radial dimension of the whole of the fixed arm (5) and the driving connecting rod (4); the sealing piece (18) is arranged at the opening part of the outer sleeve (1) and is provided with an opening for the driving connecting rod (4), the steel wire (17) and the fixing arm (5) to pass through;
the round shell (8) is fixedly connected to the fixed handle (2) and is provided with an opening for a steel wire (17) to enter and exit; the ratchet wheel (11) is connected with the shell (8) through a bearing, and a fixed ring (16) fixed on one side of the shell (8) is arranged in the ratchet wheel (11); the pawl (12) and the reed (13) are both arranged on one side of the fixed ring (16) facing outwards, the pawl (12) is connected through a rotating shaft, the reed (13) is fixedly connected through a fixed pile, and the other end of the reed (13) is connected to the pawl (12); a long hole is formed in the shell (8) on the same side as the fixed ring (16), and a spring poking pin (9) for poking the spring (13) is arranged in the long hole; the rocking handle (10) and the spring pulling pin (9) are positioned at the opposite side of the shell (8); the rotating shaft of the rocking handle (10) is coaxial with the ratchet wheel (11), and the inner end of the rocking handle is connected with the inner side of the ratchet wheel (11);
the movable arm (6) is of a hollow tubular structure with the inner diameter being larger than the outer diameter of the sterile rope (7), the fixed arm (5) is of a C-shaped groove structure, and the inner diameter of the groove is larger than the outer diameter of the movable arm (6);
the fixed handle (2) and the movable handle (3) are both provided with finger sleeves (14), and the two handles are also provided with saw-tooth lock catches (15) which form lap joint.
2. The laparoscope liver-rotating traction device according to claim 1, wherein the front ends of the fixed arm (5) and the movable arm (6) are round heads, and the two wing end surfaces of the fixed arm (5) are processed with circular arcs.
3. The laparoscopic liver rotation traction device according to claim 1, characterized in that the rear end of the movable arm (6) is a ball head; or a pit for accommodating the rear end of the movable arm (6) when the fixed arm (5) is opened is arranged on the bottom surface of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810583304.3A CN108523951B (en) | 2018-06-08 | 2018-06-08 | Laparoscope liver rotating traction device |
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|---|---|---|---|---|
| CN101888805A (en) * | 2007-10-07 | 2010-11-17 | Ez外科有限公司 | Laparoscopic tissue retractor |
| CN102579091A (en) * | 2012-02-16 | 2012-07-18 | 南方医科大学珠江医院 | Liver and stomach retraction device for spleen operation under laparoendoscopic single-site surgery |
| CN207202901U (en) * | 2017-03-07 | 2018-04-10 | 罗伊 | A kind of laparoscope drag hook component |
| CN107997792A (en) * | 2016-10-28 | 2018-05-08 | 南方医科大学珠江医院 | Single-hole laparoscopic takes off liver device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110112366A1 (en) * | 2009-11-07 | 2011-05-12 | Nauman Basit | Laparoscopic instrument |
| JP6297692B2 (en) * | 2013-08-08 | 2018-03-20 | グローバル・バイオ・セラピューティクス・インコーポレイテッドＧｌｏｂａｌ Ｂｉｏ Ｔｈｅｒａｐｅｕｔｉｃｓ，Ｉｎｃ． | Clamp device for minimally invasive treatment and use thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888805A (en) * | 2007-10-07 | 2010-11-17 | Ez外科有限公司 | Laparoscopic tissue retractor |
| CN102579091A (en) * | 2012-02-16 | 2012-07-18 | 南方医科大学珠江医院 | Liver and stomach retraction device for spleen operation under laparoendoscopic single-site surgery |
| CN107997792A (en) * | 2016-10-28 | 2018-05-08 | 南方医科大学珠江医院 | Single-hole laparoscopic takes off liver device |
| CN207202901U (en) * | 2017-03-07 | 2018-04-10 | 罗伊 | A kind of laparoscope drag hook component |
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