CN108814681B - One-way locking surgical forceps structure - Google Patents
One-way locking surgical forceps structure Download PDFInfo
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- CN108814681B CN108814681B CN201810368649.7A CN201810368649A CN108814681B CN 108814681 B CN108814681 B CN 108814681B CN 201810368649 A CN201810368649 A CN 201810368649A CN 108814681 B CN108814681 B CN 108814681B
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- locking
- chute section
- swing arm
- rotor
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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
- A61B17/2909—Handles
-
- 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
- A61B2017/2946—Locking means
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Ophthalmology & Optometry (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a surgical forceps structure capable of being locked in one direction, which comprises a front fixed handle, a rear movable handle capable of rotating around a rotation center, a locking buckle capable of rotating around a hinge center, a driving mechanism for driving the locking buckle to rotate and a locking buckle torsion spring, wherein the rear movable handle is provided with ratchet teeth, and the locking buckle is in transmission fit with the ratchet teeth in a locking state. The surgical forceps structure with the structure can realize the one-way clamping and locking state according to the requirement, improve the surgical efficiency and reduce the working strength of doctors.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an operating forceps structure capable of being locked in a one-way mode.
Background
With the development of medical technology, endoscopic surgery is increasingly favored by doctors and patients as a novel surgical mode, and has the advantages of small surgical wound and the like. The surgical forceps have the advantages that in the surgical process, due to different surgical requirements, tissues need to be grabbed for a long time sometimes, the surgical forceps need to have a locking function at the moment, the surgical forceps need to be opened and closed continuously to operate different parts sometimes, the locking function of the surgical forceps is required to be released at the moment, the existing surgical forceps with the locking function need to continuously press a switch to release or keep the locking state, or other surgical instruments are replaced, the working strength of a doctor is greatly improved, and the surgical efficiency of the doctor is reduced.
Disclosure of Invention
In view of the above, the present invention provides a surgical forceps structure capable of locking in one direction, so as to improve the surgical efficiency and reduce the working strength of the surgeon.
The invention solves the problems through the following technical means: the surgical forceps structure comprises a front fixed handle, a rear movable handle capable of rotating around a rotation center, a locking buckle capable of rotating around a hinge center, a driving mechanism for driving the locking buckle to rotate and a locking buckle torsion spring, wherein the rear movable handle is provided with ratchet teeth, and the locking buckle is in transmission fit with the ratchet teeth in a locking state.
Furthermore, actuating mechanism includes the locking slider, set up the switching mechanism that is used for realizing locking slider antedisplacement or backstroke on one side of the locking slider and set up the locking slider reset spring on the locking slider opposite side, the locking slider passes through the connecting rod driving medium and is connected with the locking knot.
Further, switching mechanism includes fixing base, initiative rotor and driven rotor, the fixing base slides with the initiative rotor and cup joints, initiative rotor one end is provided with first button, driven rotor arranges between fixing base and locking slider, and driven rotor lateral wall circumference has arranged a plurality of bosss, and boss and fixing base contact one side are the inclined plane, and initiative rotor is kept away from first button one end and is provided with the inclined plane end meshing driven skewed tooth structure with the boss, and sawtooth groove and logical groove have been seted up in turn to fixing base and driven rotor contact one side circumference.
Furthermore, the inner wall of the fixed seat is provided with a guide groove in sliding fit with the driving rotor.
Further, actuating mechanism includes the locking push rod, sets up at the second button of locking push rod one end, sets up locking swing arm and the locking spout at the locking push rod other end, the locking is detained and is articulated with the locking push rod, the locking swing arm is articulated with the locking push rod, is provided with locking swing arm reset torsion spring between locking swing arm and the locking push rod, it detains the position to have seted up the locking in the locking spout.
Furthermore, a first key reset spring is arranged between the first key and the fixed seat.
Further, the connecting rod transmission part comprises a first connecting rod, a second connecting rod and a third connecting rod which are in hinged transmission.
Furthermore, the locking chute comprises a first chute section, a second chute section, a third chute section and a fourth chute section, wherein the first chute section and the second chute section are used for guiding the free end of the locking swing arm into the locking buckle position, and the third chute section and the fourth chute section are used for guiding the free end of the locking swing arm away from the locking buckle position.
Further, the free end of the locking swing arm moves obliquely downwards along the first chute section.
Further, the free end of the locking swing arm moves obliquely upward along the fourth chute section.
The invention has the beneficial effects that: the surgical forceps structure capable of being locked in one direction comprises a front fixed handle, a rear movable handle capable of rotating around a rotation center, a locking buckle capable of rotating around a hinge center, a driving mechanism for driving the locking buckle to rotate and a locking buckle torsion spring, wherein ratchet teeth are arranged on the rear movable handle, and the locking buckle is in transmission fit with the ratchet teeth in a locking state. The surgical forceps structure with the structure can be switched between a one-way clamping locking state and a non-one-way clamping locking state by separating or meshing the locking buckle and the ratchet wheel teeth through the driving mechanism, so that the surgical efficiency is improved, and the working strength of doctors is reduced.
Drawings
The invention is further described below with reference to the figures and examples.
Fig. 1 is an overall configuration diagram in a locked state in embodiment 1;
FIG. 2 is a schematic view showing the entire structure in an unlocked state in embodiment 1;
fig. 3 is a schematic view showing the connection relationship of the components of the switching mechanism in the locked state in embodiment 1;
fig. 4 is a schematic view showing the connection relationship of the components of the switching mechanism in the unlocked state in embodiment 1;
FIG. 5 is a schematic diagram illustrating the switching threshold states of the switching mechanism in embodiment 1;
fig. 6 is a schematic structural view of a fixing base of the switching mechanism in embodiment 1;
FIG. 7 is a schematic view showing the state of motion of each component at the time of switching between the locked state and the unlocked state in embodiment 1;
FIG. 8 is a schematic view showing the entire structure in a locked state in embodiment 2;
FIG. 9 is a schematic view showing the entire structure in an unlocked state in embodiment 2;
FIG. 10 is a schematic view showing the connection of the components of the drive mechanism in the locked state in embodiment 2;
FIG. 11 is a schematic view showing the connection of the components of the drive mechanism in the unlocked state in embodiment 2;
FIG. 12 is a schematic view showing the movement of the components when switched to the locked state;
fig. 13 is a schematic view showing the movement state of each component when switching to the unlocked state.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-7, the surgical forceps structure capable of being locked in one direction in this embodiment includes a front fixed handle 1, a rear movable handle 3 capable of rotating around a rotation center, a locking buckle 2 capable of rotating around a hinge center, a driving mechanism for driving the locking buckle to rotate, and a locking buckle torsion spring 10, wherein the rotation center of the rear movable handle and the hinge center of the locking buckle are both located on the front fixed handle, the rear movable handle is provided with ratchet teeth, the locking buckle is in transmission fit with the ratchet teeth in a locking state, the driving mechanism includes a locking slider 7, a switching mechanism 9 arranged on one side of the locking slider for realizing forward or backward movement of the locking slider, and a locking slider return spring 8 arranged on the other side of the locking slider, the locking slider is connected with the locking buckle through a link transmission member, the front fixed handle is provided with a sliding slot for sliding the locking slider, and the link transmission member includes a first link 4 in hinge transmission, A second connecting rod 5 and a third connecting rod 6, the switching mechanism 9 comprises a fixed seat 92, a driving rotor 93 and a driven rotor 91, the fixed seat is sleeved with the driving rotor in a sliding way, one end of the driving rotor is provided with a first key 11, a first key reset spring 12 is arranged between the first key and the fixed seat, the driven rotor is arranged between the fixed seat and the locking slide block, a plurality of bosses are circumferentially arranged on the side wall of the driven rotor, the side of the boss, which is in contact with the fixed seat, is an inclined plane, one end of the driving rotor, which is far away from the first key, is provided with a helical tooth structure which is in meshing transmission with the inclined plane end of the boss, one side of the fixed seat, which is in contact with the driven rotor, is circumferentially and alternately provided with a sawtooth groove, in the switching process of the locking state and the non-locking state, the bosses on the side wall of the driven rotor are alternately clamped into the through grooves and the sawtooth grooves, and the inner wall of the fixing seat is provided with a guide groove 922 in sliding fit with the driving rotor. When the surgical operation device is in a locking state, the states of all the components are shown in figure 1, the locking buckle is meshed with ratchet teeth on the rear movable handle under the action of a locking buckle torsion spring, the rear movable handle can only move towards one direction, a one-way locking function is realized, so that human tissues can be continuously and effectively clamped in the surgical process, the surgical efficiency is improved, and the working strength of doctors is reduced, the connection state of all the components of the switching mechanism is shown in figure 3, a boss on the side wall of the driven rotor is matched with a through groove of the fixing base, and the locking slide block is positioned at the leftmost side under the action of the elastic force of a locking slide block return spring; when the locking mechanism is in a non-locking state, the states of all the components are as shown in figure 2, the locking slide block moves, the locking buckle is driven to rotate through the connecting rod transmission part, the locking buckle is disengaged from ratchet teeth, the one-way locking state is relieved, the connection state of all the components of the switching mechanism is as shown in figure 4, the boss on the side wall of the driven rotor is matched with the sawtooth groove of the fixed seat, the driven rotor integrally moves to the right, and therefore the locking slide block is pushed to integrally move to the right and a reset spring of the locking slide block is.
In order to make the above technical solution clearer, the following describes in detail the switching process between the locked state and the unlocked state, when switching from the locked state to the unlocked state, the first button is pressed to push the driving rotor to move right, the driving rotor pushes the driven rotor to move right, fig. 5 is a schematic diagram of the critical state of the driving rotor and the driven rotor during the switching process, the driving rotor pushes the driven rotor to separate from the through slot, during the pushing process, the helical tooth structure at the end of the driving rotor acts on the inclined surface of the boss, and the guide effect of the serrated groove and the inclined surface of the boss is combined, so that the driven rotor rotates a certain angle and the boss on the side wall of the driven rotor slides into the serrated groove, at this time, the driven rotor moves a certain distance to the right integrally, thereby pushing the locking slider to move a certain distance to the right, during the right movement of the locking slider, the, the locking button is disengaged from the ratchet teeth, thereby releasing the one-way locking state. During the switching process, the movement state of each component is shown in fig. 7. The fixing base has a guiding effect on the movement of the driving rotor, fig. 6 is a schematic structural diagram of the fixing base, a guide groove in sliding fit with the driving rotor is formed in the inner wall of the fixing base, the guide groove is located on the inner side of the sawtooth groove, and the situation that a boss on the side wall of the driven rotor is clamped into the guide groove in the position switching process of the driven rotor is avoided. And when the first key is pressed again, the motion states of all the parts are opposite, and the locking state can be switched again.
Example 2
Referring to fig. 8-13, the surgical forceps structure capable of being unidirectionally locked in this embodiment includes a front fixed handle 1, a rear movable handle 3 capable of rotating around a rotation center, a locking buckle 2 capable of rotating around a hinge center, a driving mechanism for driving the locking buckle to rotate, and a locking buckle torsion spring 10, wherein the rotation center of the rear movable handle and the hinge center of the locking buckle are both disposed on the front fixed handle, the rear movable handle is provided with ratchet teeth, the locking buckle is in transmission fit with the ratchet teeth in a locked state, the driving mechanism includes a locking push rod 15, a second button 14 disposed at one end of the locking push rod, a locking swing arm 16 disposed at the other end of the locking push rod, and a locking chute 13, the locking buckle 2 is hinged to the locking push rod 15, the locking swing arm 16 is hinged to the locking push rod 15, a locking swing arm reset torsion spring is disposed between the locking swing arm 16 and the locking push rod 15, a locking buckle position is disposed in the locking, the locking chute 13 includes a first chute section 1301, a second chute section 1302, a third chute section 1303, and a fourth chute section 1304, where the first chute section 1301 and the second chute section 1302 are used to guide the free end 1601 of the locking swing arm 16 into the locking position, and the third chute section 1303 and the fourth chute section 1304 are used to guide the free end 1601 of the locking swing arm 15 away from the locking position. When the locking mechanism is in a locking state, the states of all parts are shown in fig. 8, the locking buckle is meshed with the ratchet teeth of the rear movable handle under the action of a torsion spring of the locking buckle, the rear movable handle can only move towards one direction, the one-way locking function is realized, the connection state of all parts of the driving mechanism is shown in fig. 10, and the locking swing arm is in a free state; when the driving mechanism is in an unlocked state, the states of all the components are shown in fig. 9, the locking push rod moves rightwards, the movement interval of the locking buckle changes, the locking buckle cannot be engaged with ratchet teeth all the time in the movement interval, so that the one-way locking state is released, the connection state of all the components of the driving mechanism is shown in fig. 11, and the free end of the locking swing arm is clamped into the locking buckle position.
In order to make the above technical solution clearer, a switching process between a locking state and a non-locking state is described in detail below, when the locking state is switched to the non-locking state, the second button pushes the locking push rod to move to the right, on one hand, a movement interval of the locking button changes, in the movement interval, the locking button cannot be engaged with ratchet teeth all the time, so that the one-way locking state is removed, on the other hand, the locking push rod pushes the locking swing arm to move, the free end of the locking swing arm reaches the first chute section, the first chute section is an inclined surface which inclines downwards, the locking push rod is continuously pushed, the locking swing arm can swing around a hinge point, and meanwhile, the free end of the locking swing arm slides downwards along the first chute section in an inclined way and then slides into a locking button position through the; when the locking state is switched from the non-locking state to the locking state, the second button is pressed again, the locking swing arm is pushed to move through the locking push rod, the free end of the locking swing arm is separated from the locking buckle position, enters the third chute section, then moves upwards in an inclined mode along the fourth chute section and finally separates from the locking chute, and under the action of the locking buckle torsion spring, the locking buckle restores to be meshed with the ratchet teeth, so that the locking state is switched to be the one-way locking state.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. The utility model provides a but one-way locking's operation pincers structure which characterized in that: including preceding fixed handle, can move the handle after rotating center pivoted, can detain around articulated center pivoted locking, drive locking and detain pivoted actuating mechanism and locking and detain the torsional spring, move after and be provided with the ratchet tooth on the handle, locking under the locking state detain with ratchet tooth transmission cooperation, actuating mechanism includes the locking push rod, sets up at the second button of locking push rod one end, sets up locking swing arm and the locking spout at the locking push rod other end, the locking is detained and is articulated with the locking push rod, the locking swing arm is articulated with the locking push rod, is provided with locking swing arm reset torsion spring between locking swing arm and the locking push rod, it detains the position to have seted up the locking in the locking spout.
2. The surgical clamp structure capable of being locked unidirectionally according to claim 1, wherein: the locking chute comprises a first chute section, a second chute section, a third chute section and a fourth chute section, the first chute section and the second chute section are used for guiding the free end of the locking swing arm into the locking buckle position, and the third chute section and the fourth chute section are used for guiding the free end of the locking swing arm away from the locking buckle position.
3. The surgical clamp structure capable of being locked unidirectionally according to claim 2, wherein: the free end of the locking swing arm moves downwards along the first chute section in an inclined mode.
4. A surgical clamp structure capable of being locked unidirectionally according to claim 3, wherein: the free end of the locking swing arm moves upwards along the fourth chute section in an inclined mode.
5. The utility model provides a but one-way locking's operation pincers structure which characterized in that: including preceding fixed handle, can move the handle around the pivoted back of gyration center, can detain around articulated center pivoted locking, drive locking and detain pivoted actuating mechanism and locking and detain the torsional spring, the back is provided with the ratchet tooth on moving the handle, locking under the locking state detain with the transmission cooperation of ratchet tooth, actuating mechanism includes the locking slider, sets up the switching mechanism that is used for realizing locking slider antedisplacement or backstroke and sets up the locking slider reset spring at the locking slider opposite side in locking slider one side, the locking slider passes through the connecting rod driving medium and is connected with locking knot, the connecting rod driving medium includes articulated driven first connecting rod, second connecting rod and third connecting rod.
6. A surgical clamp structure capable of being locked unidirectionally according to claim 5, wherein: switching mechanism includes fixing base, initiative rotor and driven rotor, the fixing base slides with the initiative rotor and cup joints, initiative rotor one end is provided with first button, driven rotor arranges between fixing base and locking slider, and driven rotor lateral wall circumference has arranged a plurality of bosss, and the boss is the inclined plane with fixing base contact one side, and initiative rotor is kept away from first button one end and is provided with the inclined plane end meshing driven skewed tooth structure with the boss, and sawtooth groove and logical groove have been seted up in turn to fixing base and driven rotor contact one side circumference.
7. The surgical clamp structure capable of being locked unidirectionally according to claim 6, wherein: the inner wall of the fixed seat is provided with a guide groove in sliding fit with the driving rotor.
8. The surgical clamp structure capable of being locked unidirectionally according to claim 6, wherein: a first key reset spring is arranged between the first key and the fixed seat.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368649.7A CN108814681B (en) | 2018-04-23 | 2018-04-23 | One-way locking surgical forceps structure |
| AU2019258296A AU2019258296B2 (en) | 2018-04-23 | 2019-04-19 | Surgical forceps structure capable of being locked in one direction |
| PCT/CN2019/083375 WO2019206028A1 (en) | 2018-04-23 | 2019-04-19 | Surgical forceps structure capable of being locked in one direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368649.7A CN108814681B (en) | 2018-04-23 | 2018-04-23 | One-way locking surgical forceps structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108814681A CN108814681A (en) | 2018-11-16 |
| CN108814681B true CN108814681B (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810368649.7A Active CN108814681B (en) | 2018-04-23 | 2018-04-23 | One-way locking surgical forceps structure |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN108814681B (en) |
| AU (1) | AU2019258296B2 (en) |
| WO (1) | WO2019206028A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108814681B (en) * | 2018-04-23 | 2020-08-04 | 湖南瀚德微创医疗科技有限公司 | One-way locking surgical forceps structure |
| CN110226954B (en) * | 2019-07-17 | 2024-01-30 | 山东威瑞外科医用制品有限公司 | Surgical forceps |
| CN113189775B (en) * | 2021-04-20 | 2022-06-17 | 歌尔股份有限公司 | Headband adjusting device and head-mounted equipment |
| CN113790938B (en) * | 2021-08-25 | 2024-04-19 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Core splitting machine with variable caliber |
| CN113855172B (en) * | 2021-11-15 | 2023-03-28 | 英特姆(武汉)医疗科技股份有限公司 | Handle locking assembly of split type minimally invasive instrument |
| CN115998989A (en) * | 2022-12-02 | 2023-04-25 | 北京快舒尔医疗技术有限公司 | Injection device and injection system comprising such an injection device |
| CN117137581B (en) * | 2023-10-26 | 2024-02-02 | 桐庐优视医疗器械有限公司 | Anti-breaking uterine cavity forceps |
| CN117297718B (en) * | 2023-11-27 | 2024-02-06 | 精勤智造(苏州)医疗科技有限公司 | Modularized minimally invasive surgical forceps |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2075333C (en) * | 1991-10-18 | 2003-07-22 | Ernie Aranyi | Handle for endoscopic surgical instruments and jaw structure |
| CA2103773C (en) * | 1992-08-19 | 1998-11-03 | David T. Green | Handle for endoscopic surgical instruments and jaw structure |
| US5609601A (en) * | 1994-09-23 | 1997-03-11 | United States Surgical Corporation | Endoscopic surgical apparatus with rotation lock |
| US5582615A (en) * | 1995-10-30 | 1996-12-10 | Pilling Weck, Incorporated | Handle for surgical clip applicator systems |
| US5626608A (en) * | 1996-03-29 | 1997-05-06 | United States Surgical Corporation | Surgical instrument having locking handle |
| DE29610479U1 (en) * | 1996-06-14 | 1996-08-29 | Richard Wolf Gmbh, 75438 Knittlingen | Medical instrument |
| DE102005011787A1 (en) * | 2005-03-11 | 2006-09-14 | Olympus Winter & Ibe Gmbh | Medical instrument with operating handle |
| US8409244B2 (en) * | 2007-04-16 | 2013-04-02 | Intuitive Surgical Operations, Inc. | Tool with end effector force limiter |
| CN202497242U (en) * | 2012-02-24 | 2012-10-24 | 杭州光典医疗器械有限公司 | Medical handle with lock card |
| CN203328751U (en) * | 2013-06-20 | 2013-12-11 | 瑞奇外科器械(中国)有限公司 | Surgical operating instrument and driving device thereof |
| CN104523321B (en) * | 2014-12-30 | 2017-06-13 | 杭州光典医疗器械有限公司 | The card locking device and operating theater instruments of carrier state handoff functionality |
| CN105615947B (en) * | 2016-03-18 | 2018-03-16 | 杭州光典医疗器械有限公司 | A kind of medical calm button lock card device and its unlocking manner |
| CN106274574A (en) * | 2016-08-26 | 2017-01-04 | 麦格纳汽车技术（上海）有限公司徐汇分公司 | A kind of adjusting mechanism for leg support of seat |
| CN106551716B (en) * | 2016-10-24 | 2019-05-07 | 中国科学院深圳先进技术研究院 | Endoscope-assistant surgery instrument |
| CN108814681B (en) * | 2018-04-23 | 2020-08-04 | 湖南瀚德微创医疗科技有限公司 | One-way locking surgical forceps structure |
-
2018
- 2018-04-23 CN CN201810368649.7A patent/CN108814681B/en active Active
-
2019
- 2019-04-19 WO PCT/CN2019/083375 patent/WO2019206028A1/en active Application Filing
- 2019-04-19 AU AU2019258296A patent/AU2019258296B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019206028A1 (en) | 2019-10-31 |
| AU2019258296B2 (en) | 2022-03-17 |
| AU2019258296A1 (en) | 2020-12-10 |
| CN108814681A (en) | 2018-11-16 |
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