CN109009328B - Inferior vena cava root blood vessel dissection separating forceps for liver surgery - Google Patents
Inferior vena cava root blood vessel dissection separating forceps for liver surgery Download PDFInfo
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- CN109009328B CN109009328B CN201810971082.2A CN201810971082A CN109009328B CN 109009328 B CN109009328 B CN 109009328B CN 201810971082 A CN201810971082 A CN 201810971082A CN 109009328 B CN109009328 B CN 109009328B
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- clamp
- forceps
- pull rod
- connecting rod
- rotary connector
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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
- A61B17/2812—Surgical forceps with a single pivotal connection
-
- 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
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/282—Jaws
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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
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/2841—Handles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
-
- 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
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/2841—Handles
- A61B2017/2845—Handles with a spring pushing the handle back
-
- 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
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (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 discloses a lower vena cava root vessel dissection separating clamp for liver surgery, which comprises a clamp body, clamp handles and clamp heads, wherein the clamp body is a cylinder, a cavity structure is arranged in the cylinder, two clamp handles are arranged, and the two clamp handles are connected to the rear end of the clamp body and are symmetrically distributed about the clamp body. The invention has the beneficial effects that: the pull rod is driven to rotate and stretch through the driving structure, so that the clamp head can be opened and closed, the clamp head can be rotated, the angle of the clamp head is adjusted, when the blood vessel at the root of the inferior vena cava is dissected, a surgeon does not need to twist his wrist, the operation can be realized, the accuracy of the operation knife is improved, the danger caused by wrist twisting can be avoided, and the operation is more convenient.
Description
Technical Field
The invention relates to the field of surgical medical equipment, in particular to a lower vena cava root vessel dissection separating clamp for liver surgery.
Background
When in liver surgery, one or two hepatic veins are often required to be separated and ligated to cut off the blood flow flowing out of the liver in the region, no special separating forceps for separating the root blood vessels of the vena cava are clinically used at present, and large-size chest separating forceps or right-angle vascular forceps are often adopted to replace the special and important anatomical positions of the root parts of the inferior vena cava, so that the replacement instruments are unsatisfactory in terms of convenience and safety of operation of operators, are inconvenient for medical staff to hold and operate and reset after operation, are inconvenient for rotation operation of forceps heads under the condition that the wrists of the medical staff are not rotated, and are also inconvenient for rotation operation and adjustment.
Disclosure of Invention
The invention aims to solve the problems and provide the inferior vena cava root vessel dissection separating forceps for liver surgery, which is convenient for medical staff to hold, operate and reset after operation, is convenient for the rotation operation of the forceps head under the condition of ensuring that the wrist of the medical staff does not rotate, and is also convenient for rotation operation and adjustment.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a lower vena cava root vessel dissection separating clamp for liver surgery, which comprises a clamp body, clamp handles and clamp heads, wherein the clamp body is a cylinder, a cavity structure is arranged in the cylinder, two clamp handles are arranged, and the two clamp handles are connected to the rear end of the clamp body and are symmetrically distributed about the clamp body;
a pull rod is arranged in the cavity structure along the length direction of the cavity structure, one end of the pull rod penetrates through a through hole of the end cover at the rear end of the clamp body to be connected with the driving structure, the other end of the pull rod extends to the outer side of the clamp body and is connected with a connecting rod mechanism through a U-shaped connecting frame, and the connecting rod mechanism is connected with the clamp head; a limiting post is formed on the part of the pull rod, which is positioned in the cavity structure, a spring is nested on the pull rod between the limiting post and the end cover, and at least one end of the spring is a free end;
the front end of the clamp body is provided with a rotary connector, a rotary support is arranged at the joint of the rotary connector and the clamp body, the outer ring of the rotary support is in interference fit with the clamp body, and the inner ring of the rotary support is in interference fit with the rotary connector; the square groove is formed in the rotary connector, a square sliding block is nested on a pull rod positioned at the part of the rotary connector and is in sliding fit with the square groove, and the front end of the rotary connector is also connected with a supporting plate for supporting a connecting rod mechanism; when the pull rod rotates, the rotary connector is driven to rotate through the cooperation of the sliding block and the square groove, so that the supporting plate drives the connecting rod mechanism and the clamp head to rotate.
According to the technical scheme, when the dissection separating pliers are used for clamping the pliers heads, a knife operator inserts thumbs and ring fingers into the fingerstall rings, and then the forefingers and the middle fingers clamp the driving structure to pull the pull rod to move, at the moment, the pull rod is in sliding fit with the end cover, the square sliding block slides in the square groove, and the U-shaped connecting frame at the end part of the pull rod pulls the connecting rod mechanism to close the pliers heads;
if rotation is needed, when the clamp head and anatomical tissue have a certain included angle, the index finger and the middle finger toggle the driving structure, the clamp body and the slewing bearing outer ring are in interference fit, the outer ring can be kept motionless, the inner ring and the slewing connector are in interference fit, the inner ring rotates relative to the outer ring, at the moment, the pull rod rotates under the action of the driving structure, and the sliding block and the sliding groove are matched, so that the slewing connector can be driven to rotate, and the slewing connector enables the connecting rod mechanism and the clamp head to rotate through the supporting plate, so that the requirement of a surgical operation is met.
As an important design of the scheme, the clamp head comprises a first clamp head and a second clamp head, and the first clamp head is hinged with the second clamp head through a pin shaft;
the connecting rod mechanisms are provided with two groups, the two groups of connecting rod mechanisms are symmetrically distributed on two sides of the U-shaped connecting frame, each group of connecting rod mechanisms comprises a first connecting rod and a second connecting rod, and the first connecting rod is hinged with the second connecting rod; the two first connecting rods are clamped between the U-shaped connecting frames and connected to the U-shaped connecting frames through rotating shafts, and the two second connecting rods are fixedly connected with the first clamp heads and the second clamp heads respectively.
Above structure, when the pull rod pulling, the action that opens and shuts is realized to two first connecting rods to drive the second connecting rod and drive first binding clip and second binding clip to open and shut, simple structure, and structural realization stability is good.
Preferably, the rotating shafts are respectively connected with rollers at two side ends of the U-shaped connecting frame, and grooves matched with the rollers in a rolling way are formed in the inner sides of the two supporting plates. Through the rolling fit of the roller and the groove, the connecting rod mechanism can be supported, and the connecting rod mechanism can be pulled to move forwards and backwards by the pull rod to be more stable.
Preferably, a round boss is formed at the rear end of the clamp body, and the end cover is connected with the round boss through a screw.
Preferably, the driving structure is a sphere or a cylinder, the driving structure and the pull rod are integrally formed, and the sphere or the cylinder is provided with an anti-skid groove.
Preferably, the clamp handle and the clamp body are integrally formed.
Preferably, the U-shaped connecting frame is integrally formed at the end of the pull rod.
The invention has the beneficial effects that: the pull rod is driven to rotate and stretch through the driving structure, so that the clamp head can be opened and closed, the clamp head can be rotated, the angle adjustment of the clamp head is realized, when the blood vessel at the root of the inferior vena cava is dissected, a surgeon can operate without twisting his wrist, the operation accuracy is improved, the danger caused by wrist twisting can be avoided, and the use is more convenient.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the internal structure of the present invention;
fig. 2 is a schematic view of the external structure of the present invention.
The reference numerals are explained as follows:
1. a clamp body; 2. a clamp handle; 3. a swivel joint; 4. a support plate; 5. a link mechanism; 501. a first link; 502. a second link; 6. a clamp head; 601. a first binding clip; 602. a second binding clip; 7. an end cap; 8. a spring; 9. a limit pylon; 10. a slewing bearing; 11. a slide block; 12. a U-shaped connecting frame; 13. a roller; 14. a driving structure; 15. and (5) a pull rod.
Detailed Description
For the purpose of the present invention; the technical scheme and advantages are more clear, and the technical scheme of the invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
Referring to fig. 1-2, the invention provides a lower vena cava root vessel dissection separating forceps for liver surgery, which comprises a forceps body 1, forceps handles 2 and forceps heads 6, wherein the forceps body 1 is a cylinder, the inside of the cylinder is of a cavity structure, the forceps handles 2 are provided with two forceps handles 2, and the two forceps handles 2 are connected at the rear end of the forceps body 1 and are symmetrically distributed about the forceps body 1.
A pull rod 15 is arranged in the cavity structure along the length direction of the cavity structure, one end of the pull rod 15 penetrates through a through hole of the end cover 7 at the rear end of the clamp body 1 to be connected with the driving structure 14, and the other end of the pull rod 15 extends to the outer side of the clamp body 1 and is connected with the connecting rod mechanism 5 through the U-shaped connecting frame 12, and the connecting rod mechanism 5 is connected with the clamp head 6. The part of the pull rod 15, which is positioned in the cavity structure, is provided with a limiting post 9, a spring 8 is nested on the pull rod 15 between the limiting post 9 and the end cover 7, and at least one end of the spring 8 is a free end. The spring 8 is used for restoring the pull rod 15 to enable the initial state of the clamp head 6 to be in an open state, and the spring 8 is installed in various modes, wherein one end of the spring 8 can be fixedly connected with the limit post 9, and the other end of the spring is a free end. The second is that one end is fixedly connected with the end cover 7, and the other end is a free end. The third is that both ends are free ends, and the spring 8 is movably nested on the pull rod 15.
The front end of the clamp body 1 is provided with a rotary connector 3, the joint of the rotary connector 3 and the clamp body 1 is provided with a rotary support 10, the outer ring of the rotary support 10 is in interference fit with the clamp body 1, the inner ring is in interference fit with the rotary connector 3, the structure can enable the rotary connector 3 and the clamp body 1 to be in a relative rotation state, a boss matched with the inner ring of the rotary support 10 is formed on the rotary connector 3, and a boss matched with the outer ring of the rotary support 10 is formed on the clamp body 1. Square grooves are formed in the rotary connector 3, square sliding blocks 11 are nested on pull rods 15 located on the rotary connector 3, and the sliding blocks 11 are in sliding fit with the square grooves. Wherein the length of the square groove is longer than the travel of the slide block 11 in the square groove, and the opening and closing of the clamp head 6 can be realized. The front end of the rotary connector 3 is also connected with a supporting plate 4 for supporting a link mechanism 5. When the pull rod 15 rotates, the rotary connector 3 is driven to rotate through the cooperation of the sliding block 11 and the square groove, so that the supporting plate 4 drives the link mechanism 5 and the clamp head 6 to rotate.
According to the technical scheme, when the dissection separating pliers are used for clamping the pliers head 6, a knife operator inserts the thumb and the ring finger into the fingerstall ring, then the index finger and the middle finger clamp the driving structure 14 to pull the pull rod 15 to move, at the moment, the pull rod 15 is in sliding fit with the end cover 7, the square sliding block 11 slides in the square groove, and the U-shaped connecting frame 12 at the end part of the pull rod 15 pulls the connecting rod mechanism 5 to close the pliers head 6.
If rotation is needed, when the clamp head 6 and anatomical tissues have a certain included angle, the index finger and the middle finger toggle the driving structure 14, because the clamp body 1 and the outer ring of the slewing bearing 10 are in interference fit, the outer ring can be kept motionless, the inner ring and the slewing connector 3 are in interference fit, the inner ring rotates relative to the outer ring, at the moment, the pull rod 15 rotates under the action of the driving structure 14, and the slewing connector 3 can be driven to rotate due to the cooperation of the sliding block 11 and the sliding groove, and the slewing connector 3 enables the link mechanism 5 and the clamp head 6 to rotate through the supporting plate 4, so that the requirement of a surgical operation is met.
As a preferred embodiment, the clamp head 6 includes a first clamp head 601 and a second clamp head 602, and the first clamp head 601 and the second clamp head 602 are hinged by a pin shaft.
The link mechanism 5 is provided with two groups, the two groups of link mechanisms 5 are symmetrically distributed on two sides of the U-shaped connecting frame 12, each group of link mechanism 5 comprises a first link 501 and a second link 502, and the first link 501 is hinged with the second link 502. The two first connecting rods 501 are clamped between the U-shaped connecting frames 12, the two first connecting rods 501 are connected to the U-shaped connecting frames 12 through rotating shafts, and the two second connecting rods 502 are fixedly connected with the first clamp head 601 and the second clamp head 602 respectively.
Above structure, when pull rod 15 pulls, the action that opens and shuts is realized to two first connecting rods 501 to drive second connecting rod 502 drives first binding clip 601 and second binding clip 602 and opens and closes, simple structure, and structural realization stability is good.
The rotating shaft is respectively connected with rollers 13 at the two side ends of the U-shaped connecting frame 12, grooves matched with the rollers 13 in a rolling way are formed in the inner sides of the two supporting plates 4, and the stroke of the rollers 13 in the grooves is the same as the pulling stroke of the pull rod 15. Through the rolling fit of the roller 13 and the groove, the connecting rod mechanism 5 can be supported, and the pull rod 15 can pull the connecting rod mechanism 5 to move forwards and backwards more stably.
The rear end of the clamp body 1 is provided with a round boss, and the end cover 7 is connected with the round boss through a screw.
The driving structure 14 is a sphere or a cylinder, the driving structure 14 and the pull rod 15 are integrally formed, and the sphere or the cylinder is provided with an anti-skid groove, so that the structure is convenient for the operation of the index finger and the middle finger, and the operation difficulty is reduced. The clamp handle 2 and the clamp body 1 are integrally formed. The U-shaped connecting frame 12 is integrally formed at the end of the pull rod 15.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a lower vena cava root vascular dissection separating forceps for liver surgery which characterized in that: the pair of forceps comprises a forceps body, forceps handles and forceps heads, wherein the forceps body is a cylinder, a cavity structure is formed in the cylinder, two forceps handles are arranged, and the two forceps handles are connected to the rear end of the forceps body and are symmetrically distributed about the forceps body;
a pull rod is arranged in the cavity structure along the length direction of the cavity structure, one end of the pull rod penetrates through a through hole of the end cover at the rear end of the clamp body to be connected with the driving structure, the other end of the pull rod extends to the outer side of the clamp body and is connected with a connecting rod mechanism through a U-shaped connecting frame, and the connecting rod mechanism is connected with the clamp head; a limiting post is formed on the part of the pull rod, which is positioned in the cavity structure, a spring is nested on the pull rod between the limiting post and the end cover, and at least one end of the spring is a free end;
the front end of the clamp body is provided with a rotary connector, a rotary support is arranged at the joint of the rotary connector and the clamp body, the outer ring of the rotary support is in interference fit with the clamp body, and the inner ring of the rotary support is in interference fit with the rotary connector; the square groove is formed in the rotary connector, a square sliding block is nested on a pull rod positioned at the part of the rotary connector and is in sliding fit with the square groove, and the front end of the rotary connector is also connected with a supporting plate for supporting a connecting rod mechanism; when the pull rod rotates, the rotary connector is driven to rotate through the cooperation of the sliding block and the square groove, so that the supporting plate drives the connecting rod mechanism and the clamp head to rotate;
the clamp head comprises a first clamp head and a second clamp head, and the first clamp head is hinged with the second clamp head through a pin shaft;
the connecting rod mechanisms are provided with two groups, the two groups of connecting rod mechanisms are symmetrically distributed on two sides of the U-shaped connecting frame, each group of connecting rod mechanisms comprises a first connecting rod and a second connecting rod, and the first connecting rod is hinged with the second connecting rod; the two first connecting rods are clamped between the U-shaped connecting frames and connected to the U-shaped connecting frames through rotating shafts, and the two second connecting rods are fixedly connected with the first clamp heads and the second clamp heads respectively;
when the pull rod is pulled, the two first connecting rods realize opening and closing actions, so that the second connecting rods are driven to drive the first clamp heads and the second clamp heads to open and close;
the rotating shafts are respectively connected with rollers at two side ends of the U-shaped connecting frame, and grooves matched with the rollers in a rolling way are formed in the inner sides of the two supporting plates;
the driving structure is a sphere or a cylinder, the driving structure and the pull rod are integrally formed, and an anti-skid groove is formed in the sphere or the cylinder;
the clamp handle and the clamp body are integrally formed.
2. The inferior vena cava root vascular dissection forceps for liver surgery according to claim 1, wherein: the rear end of the pliers body is provided with a round boss in a forming mode, and the end cover is connected with the round boss through a screw.
3. The inferior vena cava root vascular dissection forceps for liver surgery according to claim 1, wherein: the U-shaped connecting frame is integrally formed at the end part of the pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810971082.2A CN109009328B (en) | 2018-08-24 | 2018-08-24 | Inferior vena cava root blood vessel dissection separating forceps for liver surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810971082.2A CN109009328B (en) | 2018-08-24 | 2018-08-24 | Inferior vena cava root blood vessel dissection separating forceps for liver surgery |
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| Publication Number | Publication Date |
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| CN109009328A CN109009328A (en) | 2018-12-18 |
| CN109009328B true CN109009328B (en) | 2023-08-04 |
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| CN201810971082.2A Active CN109009328B (en) | 2018-08-24 | 2018-08-24 | Inferior vena cava root blood vessel dissection separating forceps for liver surgery |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112842534B (en) | 2018-12-28 | 2024-03-29 | 北京术锐机器人股份有限公司 | Surgical tool system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202270036U (en) * | 2011-09-21 | 2012-06-13 | 深圳市中科康医疗科技有限公司 | Detachable biopsy forceps |
| CN106236195A (en) * | 2016-08-31 | 2016-12-21 | 施爱德（厦门）医疗器材有限公司 | A kind of grasping tissue pincers |
| CN106308883A (en) * | 2015-06-30 | 2017-01-11 | 李楠 | Inferior vena cava root blood vessel anatomic separating forceps applied to laparotomy |
| CN108210068A (en) * | 2018-02-05 | 2018-06-29 | 常州贺利氏微创医疗器械有限公司 | Electric coagulation hemostasis clamps |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110112366A1 (en) * | 2009-11-07 | 2011-05-12 | Nauman Basit | Laparoscopic instrument |
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- 2018-08-24 CN CN201810971082.2A patent/CN109009328B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202270036U (en) * | 2011-09-21 | 2012-06-13 | 深圳市中科康医疗科技有限公司 | Detachable biopsy forceps |
| CN106308883A (en) * | 2015-06-30 | 2017-01-11 | 李楠 | Inferior vena cava root blood vessel anatomic separating forceps applied to laparotomy |
| CN106236195A (en) * | 2016-08-31 | 2016-12-21 | 施爱德（厦门）医疗器材有限公司 | A kind of grasping tissue pincers |
| CN108210068A (en) * | 2018-02-05 | 2018-06-29 | 常州贺利氏微创医疗器械有限公司 | Electric coagulation hemostasis clamps |
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| Publication number | Publication date |
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| CN109009328A (en) | 2018-12-18 |
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