CN111096774B - Minimally invasive surgical tissue clamp - Google Patents
Minimally invasive surgical tissue clamp Download PDFInfo
- Publication number
- CN111096774B CN111096774B CN202010117769.7A CN202010117769A CN111096774B CN 111096774 B CN111096774 B CN 111096774B CN 202010117769 A CN202010117769 A CN 202010117769A CN 111096774 B CN111096774 B CN 111096774B
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- China
- Prior art keywords
- piston
- driven
- rod
- driving
- pipe
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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
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in 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
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2901—Details of shaft
- A61B2017/2902—Details of shaft characterized by features of the actuating rod
Abstract
The invention discloses a minimally invasive surgical tissue forceps, which belongs to the field of medical instruments and comprises a handle, a connecting part connected with the handle and an operating part connected with the connecting part, wherein the handle controls the operating part through the connecting part, the connecting part comprises a connecting pipe and a connecting rod positioned in the connecting pipe, the connecting pipe is respectively and fixedly connected with the handle and the operating part, and the connecting rod can be driven by the handle to move so as to drive the operating part to open and close the tissue forceps.
Description
Technical Field
The present invention relates to the field of tissue clamping.
Background
The tissue forceps are also called mouse tooth forceps (Allis). The pressing to the tissue is lighter than the vascular forceps, so generally used for clamping soft tissue, difficult slippage, if the clamping draws the pathological change position that is excised, in order to facilitate the operation to go on, the clamp gauze pad and subcutaneous tissue of incision edge, avoid the tissue in the incision to be polluted.
The existing tissue forceps do not have a buffering effect generally, and are applied to some fields, such as surgical robots, excessive damage to tissues is easily caused.
Disclosure of Invention
The invention aims to provide a minimally invasive surgical tissue forceps, which comprises a handle, a connecting part connected with the handle and an operating part connected with the connecting part, wherein the handle controls the operating part through the connecting part, the connecting part comprises a connecting pipe and a connecting rod positioned in the connecting pipe, the connecting pipe is respectively fixedly connected with the handle and the operating part, the connecting rod can be driven by the handle to move so as to drive the operating part to open and close the tissue forceps, the minimally invasive surgical tissue forceps are characterized in that the connecting rod comprises a driven rod, a driving rod and a buffer pipe, the driven rod is connected with the operating part, the driving rod is connected with the handle, the buffer pipe is connected with the driving rod and the driven rod, the driving rod comprises a driving rod body and a driving piston positioned at the tail end of the driving rod body, the driven rod body is connected with the driving piston ball, the driving rod body is connected with the driven piston, the driving piston and the driven piston are respectively clamped into the buffer tube in two directions of the buffer tube, the driving piston, the driven piston and the tube wall of the buffer tube are enclosed to form a sealed cavity, the connecting rod further comprises a piston connecting rod for connecting the driving piston and the driven piston, the piston connecting rod limits the driving piston and the driven piston to move in a back direction, and air pressure in the sealed cavity is larger than atmospheric air pressure and can be fixed.
As an improvement, the driven piston in be equipped with first movable cavity, the initiative piston in be equipped with second movable cavity, the both ends of piston connecting rod are equipped with first slider and second slider respectively, first slider and second slider block are respectively gone into in order to restrict the motion of taking the initiative piston and driven piston's back to the first movable cavity of activity and second movable cavity.
As an improvement, the sealed cavity is communicated with a pressure adjusting device.
As an improvement, the pressure adjusting device comprises:
the air supply cavity is communicated with the sealing cavity through a connecting air pipe, the air supply cavity is also connected with an air inlet pipe for air inlet and outlet, and an air pump is arranged on the air inlet pipe;
a regulation chamber in which a pressure is set;
the connecting pipe, its both ends communicate with regulation chamber and air feed chamber respectively, be equipped with the solvent in the connecting pipe in order to block regulation chamber and air feed chamber, be equipped with sensing assembly in the connecting pipe, the pressure change in the air feed chamber, it can trigger sensing assembly when the solvent liquid level risees in the connecting pipe, sensing assembly is connected with the controller, the controller is connected with the air pump that is located the intake pipe, sensing assembly is triggered and is controlled the air pump through the controller in order to deflate or the gas transmission and then adjust the pressure of air feed chamber to the air feed chamber.
As an improvement, the sensing assembly comprises a floating piece, a magnet, a positioning piece and a spring, the floating piece floats on the liquid level of the solvent, the floating piece is connected with the magnet, the connecting air pipe is provided with the positioning piece for ventilation, and the spring is positioned between the positioning piece and the magnet to fix the magnet.
As an improvement, the pressure adjusting device comprises a pressure sensor located in the air supply cavity, the pressure sensor is connected with a controller, the controller is connected with the air pump, and the controller controls the air pump according to the pressure detected by the pressure sensor, so that the pressure in the air supply cavity is maintained stable.
As an improvement, the end of the buffer pipe is provided with a baffle plate for fixing the driving piston and the driven piston to prevent the driving piston and the driven piston from being separated from the buffer pipe.
As an improvement, the buffer tube is provided with an air filling port so as to fill air into the sealed cavity.
Drawings
FIG. 1 is a schematic structural view of the present invention
FIG. 2 is a schematic view of a connecting rod;
FIG. 3 is a schematic view of a connecting rod;
FIG. 4 is a schematic view of a movable chamber;
FIG. 5 is a schematic view of an operating portion;
FIG. 6 is a schematic view of an operating portion;
FIG. 7 is a schematic view of a pressure adjustment device;
FIG. 8 is a schematic view of a sensing assembly;
FIG. 9 is a schematic view of another embodiment of another pressure regulator;
FIG. 10 is a cross-sectional view of a buffer tube;
the labels in the figure are: 100-handle, 110-button, 120-handle body, 200-connecting part, 210-connecting pipe, 211-gas filling channel, 220-connecting rod, 221-driven rod, 2211-driven piston, 2212-first movable cavity, 222-driving rod, 2221-driving piston, 2222-second movable cavity, 223-buffer pipe, 2231-baffle, 224-piston connecting rod, 2241-first slide block, 2242-second slide block, 2243-connecting rod, 300-operating part, 310 a-first clamp block, 310 b-second clamp block, 320-hinge joint, 330 a-first rotating wheel, 330 b-second rotating wheel, 340 a-first driving rod, 340 b-second driving rod, 350-movable plate, 400-pressure adjusting device, 410-air supply chamber, 411-connecting air pipe, 412-air inlet pipe, 420-adjusting chamber, 430-connecting pipe, 440-solvent, 450-sensing component, 451-floating component, 452-magnet, 453-positioning component, 454-spring, 455-sensing component, 460-controller, 470-air pump, 480-pressure sensor, 490-controller.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in FIG. 1, the invention provides a minimally invasive surgical tissue forceps, which comprises a handle 100, a connecting part 200 connected with the handle, and an operating part 300 connected with the connecting part, wherein the handle controls the operating part 300 through the connecting part, the connecting part comprises a connecting pipe 210 and a connecting rod 220 positioned in the connecting pipe, the connecting pipe is respectively fixedly connected with the handle and the operating part, the connecting rod can be driven by the handle to move so as to drive the operating part to open and close the tissue forceps, the operating part extends into a human body to operate, and the operating part can be surgical instruments such as applying forceps, electrocoagulation forceps, operating forceps and the like.
As shown in fig. 2-4, the connecting rod includes a driven rod 221, a driving rod 222, and a buffer tube 223, the driven rod is connected to the operation portion 300, the driving rod is connected to the handle 100, the buffer tube connects the driving rod and the driven rod, the driving rod includes a driving rod body and a driving piston 2221 located at the end of the driving rod body, the driven rod includes a driven rod body and a driven piston 2211 located at the end of the driven rod body, the driving rod body is connected to the driving piston ball, the driven rod body is connected to the driven piston ball, the driving piston and the driven piston are respectively clamped into the buffer tube in two directions of the buffer tube, the driving piston, the driven piston and the tube wall of the buffer tube enclose a sealed cavity, the driving piston and the driven piston are tightly attached to the buffer tube to form a sealed cavity, the driving piston and the driven piston are preferably made of rubber or the like, and can also be made of metal or plastic, and the contact surface between the piston and the buffer tube is sealed by rubber or the like. The initiative body of rod and initiative piston ball joint, the driven body of rod and driven piston ball joint, it can make the mutual free rotation of the body of rod and piston, and the position of piston and buffer tube can be fixed, and the swing of the position of the body of rod can not influence the piston, and then makes the piston can make the buffer tube motion relatively of piston when making piston and buffer tube have good leakproofness. If the rod and the piston are rigidly connected, this will cause the rod to shift in position so that the piston follows the offset, the piston and the buffer tube will not be able to properly engage, and the piston will not be able to move relative to the buffer tube. The connecting rod further includes a piston connecting rod 224 connecting the driving piston and the driven piston, the piston connecting rod limiting the back-to-back movement of the driving piston and the driven piston, the pressure in the sealed cavity is greater than atmospheric pressure and can be fixed. Be equipped with first activity cavity 2212 in the slave piston, initiative piston 2221 in be equipped with second activity cavity 2222, the both ends of piston connecting rod are equipped with first slider 2241 and second slider 2242 respectively, be connecting rod 2243 between two sliders, first slider and second slider are blocked respectively in first activity cavity and the second activity cavity in order to restrict the motion of moving back of initiative piston and slave piston.
As shown in fig. 10, in the present invention, the seal chamber is pressurized to a pressure greater than atmospheric pressure, and the two pistons do not move back due to the pulling action of the connecting rod, so the driving rod and the driven rod of the present invention can be used as the connecting rod 220 and can provide a certain rigidity action by being pressed by the seal chamber. Further, when the connecting rod 220 is subjected to a large pressing force, as shown in fig. 4, the driven piston moves relative to the driving piston, so as to provide a buffering force and prevent the operating portion of the clip from excessively damaging human tissues.
In one embodiment, both pistons may be movable relative to the buffer tube so that both pistons may be simultaneously squeezed. In another embodiment, the driving rod is rigidly connected (or integrally formed) with respect to the buffer tube, and the driven rod moves with respect to the driving rod when the connecting rod is subjected to a large squeezing force, thereby providing a certain buffering effect.
In the present invention, the buffer tube is provided with a gas filling port to enable gas to be filled into the sealed chamber, so that the sealed chamber can be filled with gas when necessary, and the gas filling device is conventional. However, when the sealed cavity of the present invention is squeezed by two pistons, the air pressure in the sealed cavity will increase rapidly, which results in that the squeezing force of the sealed cavity to the two pistons is increased, and the buffering effect of the sealed cavity to the clamp will be affected. Therefore, in a more preferable scheme, the pressure of the seal cavity is constant when the piston is pressed. Specifically, the sealed cavity is communicated with a pressure adjusting device 400. The end of the buffer pipe is provided with a baffle (2231) to fix the driving piston and the driven piston and prevent the driving piston and the driven piston from being separated from the buffer pipe.
In one embodiment, as shown in fig. 7, the pressure adjusting apparatus includes: the air supply cavity 410 is communicated with the sealed cavity through a connecting air pipe 411, the air supply cavity 410 is also connected with an air inlet pipe 412 for air inlet and outlet, and an air pump is arranged on the air inlet pipe; the pressure in the adjustment chamber 420 is set, which is sealed, and specifically, a gas filling device and a pressure display device may be provided. The two ends of the connecting pipe 430 are respectively communicated with the adjusting cavity and the air supply cavity, a solvent 440 is arranged in the connecting pipe to block the adjusting cavity and the air supply cavity, a sensing assembly 450 is arranged in the connecting pipe, the pressure in the air supply cavity changes, the sensing assembly 450 can be triggered when the liquid level of the solvent in the connecting pipe rises, the sensing assembly is connected with a controller 460, the controller is connected with an air pump 470 located on the air inlet pipe 412, the sensing assembly is triggered to control the air pump through the controller to deflate or convey the air to the air supply cavity so as to adjust the pressure of the air supply cavity, and therefore the pressure in the sealed cavity.
In the present invention, the pressure adjusting device may be disposed in the handle, which is communicated with the sealed cavity through the connecting air tube, and the handle may rotate freely when moving, resulting in the solvent flowing, so in a more preferred embodiment, as shown in fig. 8, the sensing assembly 450 includes a floating member 451, a magnet 452, a positioning member 453 and a spring 454, the floating member floats on the surface of the solvent, the floating member is connected with the magnet 452, the connecting air tube is provided with the positioning member 453, and the spring 454 is disposed between the positioning member and the magnet to fix the magnet, wherein the floating member not only enables the magnet to float, but also seals the solvent, the floating member is made of foam plastic, and the solvent may be selected from water, alcohol lamp, or solution with high viscosity.
In another embodiment, the pressure regulator includes a pressure sensor 480 located in the air supply chamber, the pressure sensor is connected to a controller 490, the controller is connected to the air pump 470, and the controller controls the air pump according to the pressure detected by the pressure sensor, so as to maintain the pressure in the air supply chamber stable.
Claims (7)
1. A minimally invasive surgery tissue forceps comprises a handle (100), a connecting part (200) connected with the handle and an operating part (300) connected with the connecting part, wherein the handle controls the operating part (300) through the connecting part, the connecting part comprises a connecting pipe (210) and a connecting rod (220) positioned in the connecting pipe, the connecting pipe is respectively fixedly connected with the handle and the operating part, the connecting rod can be driven by the handle to move and further drive the operating part to open and close the tissue forceps, the minimally invasive surgery tissue forceps is characterized in that the connecting rod comprises a driven rod (221), a driving rod (222) and a buffer pipe (223), the driven rod is connected with the operating part, the driving rod is connected with the handle, the buffer pipe is connected with the driving rod and the driven rod, the driving rod comprises a driving rod body and a driving piston (2221) positioned at the tail end of the driving rod body, the driven rod comprises a, the driving rod body is connected with the driving piston ball, the driven rod body is connected with the driven piston ball, the driving piston and the driven piston are respectively clamped into the buffer tube in two directions of the buffer tube, a sealed cavity is formed by the driving piston, the driven piston and the tube wall of the buffer tube in a surrounding mode, the connecting rod further comprises a piston connecting rod (224) for connecting the driving piston with the driven piston, the piston connecting rod limits the driving piston and the driven piston to move in a back-to-back mode, and the air pressure in the sealed cavity is larger than the atmospheric pressure and can be fixed;
driven piston in be equipped with first activity cavity (2212), initiative piston (2221) in be equipped with second activity cavity (2222), the both ends of piston connecting rod are equipped with first slider (2241) and second slider (2242) respectively, first slider and second slider are blocked respectively in first activity cavity and the second activity cavity with the motion dorsad of restriction initiative piston and driven piston.
2. The minimally invasive surgical tissue forceps according to claim 1, wherein the sealed cavity is in communication with a pressure regulating device (400).
3. The minimally invasive surgical tissue forceps according to claim 2, wherein the pressure regulating device comprises:
the air supply cavity (410) is communicated with the sealed cavity through a connecting air pipe (411), the air supply cavity is also connected with an air inlet pipe (412) for air inlet and outlet, and an air pump is arranged on the air inlet pipe;
a regulation chamber (420) in which a pressure is set;
connecting pipe (430), its both ends respectively with adjust the chamber and feed air chamber intercommunication, be equipped with solvent (440) in the connecting pipe in order to block and adjust chamber and feed air chamber, be equipped with sensing component (450) in the connecting pipe, the pressure change in the feed air chamber, it can trigger sensing component (450) when the solvent liquid level risees in the connecting pipe, sensing component is connected with controller (460), the controller is connected with air pump (470) that is located intake pipe (412), sensing component is triggered and is passed through controller control air pump and in order to deflate or the gas transmission and then adjust the pressure in feed air chamber to the feed air chamber.
4. The minimally invasive surgical tissue forceps according to claim 3, wherein the sensing assembly (450) comprises a floating member (451), a magnet (452), a positioning member (453) and a spring (454), the floating member floats on the solvent level, the magnet (452) is connected to the floating member, the positioning member (453) is arranged on the connecting air pipe, and the spring (454) is arranged between the positioning member and the magnet to fix the magnet.
5. The minimally invasive surgical tissue forceps according to claim 2, wherein the pressure regulating device includes a pressure sensor (480) located in the air supply chamber, the pressure sensor is connected to a controller (490), the controller is connected to the air pump (470), and the controller controls the air pump according to the pressure detected by the pressure sensor, so as to maintain the pressure in the air supply chamber stable.
6. The minimally invasive surgical tissue forceps according to claim 1, wherein the buffer tube end is provided with a baffle (2231) to secure the driving piston and the driven piston against disengagement from the buffer tube.
7. The minimally invasive surgical tissue forceps according to claim 1, wherein the buffer tube is provided with a gas filling port to allow gas to be filled into the sealed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117769.7A CN111096774B (en) | 2020-02-25 | 2020-02-25 | Minimally invasive surgical tissue clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117769.7A CN111096774B (en) | 2020-02-25 | 2020-02-25 | Minimally invasive surgical tissue clamp |
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| Publication Number | Publication Date |
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| CN111096774A CN111096774A (en) | 2020-05-05 |
| CN111096774B true CN111096774B (en) | 2020-08-14 |
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| CN202010117769.7A Active CN111096774B (en) | 2020-02-25 | 2020-02-25 | Minimally invasive surgical tissue clamp |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112617926B (en) * | 2020-12-01 | 2022-01-28 | 苏州法兰克曼医疗器械有限公司 | Anastomat with adjustable turning mechanism bending angle |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1549200A4 (en) * | 2002-09-30 | 2008-05-07 | Sightline Techn Ltd | Piston-actuated endoscopic tool |
| US20100069953A1 (en) * | 2008-09-16 | 2010-03-18 | Tyco Healthcare Group Lp | Method of Transferring Force Using Flexible Fluid-Filled Tubing in an Articulating Surgical Instrument |
| CN102631245B (en) * | 2011-02-14 | 2014-03-26 | 中国科学院理化技术研究所 | Operation robot system for performing laser resection and freezing on tumor tissues |
| WO2014155743A1 (en) * | 2013-03-29 | 2014-10-02 | 国立大学法人 東京工業大学 | Forceps |
| WO2015025745A1 (en) * | 2013-08-21 | 2015-02-26 | オリンパスメディカルシステムズ株式会社 | Treatment tool and treatment system |
| US9936943B1 (en) * | 2014-08-07 | 2018-04-10 | Nicholas MANCINI | Suture passing surgical device with atraumatic grasper preventing accidental perforations |
| JP6577936B2 (en) * | 2016-12-27 | 2019-09-18 | 川崎重工業株式会社 | Hydraulic forceps system |
| JP6550368B2 (en) * | 2016-12-27 | 2019-07-24 | 川崎重工業株式会社 | Hydraulic insulator system |
| CN109925023A (en) * | 2017-12-15 | 2019-06-25 | 陕西海嵘工程项目管理有限公司 | A kind of laparoscope grasping forceps |
| CN208591100U (en) * | 2018-03-26 | 2019-03-12 | 王玉琴 | A kind of obstetrics and gynecology department surgical clamp |
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| CN111096774A (en) | 2020-05-05 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Jing Inventor after: Zhao Kai Inventor after: Dong Dahai Inventor after: Other inventor requests not to publish the name Inventor before: Request for anonymity |
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Effective date of registration: 20200721 Address after: 266000 Shandong city of Qingdao province Jiangsu City Road No. 16 Applicant after: THE AFFILIATED HOSPITAL OF QINGDAO University Address before: 610000 unit 1, building 7, Tianfu New Valley, No. 399, west section of Fucheng Avenue, hi tech Zone, Chengdu, Sichuan Province Applicant before: Yang Rui |
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