CN111184559A - Surgical knife - Google Patents
Surgical knife Download PDFInfo
- Publication number
- CN111184559A CN111184559A CN201911426627.2A CN201911426627A CN111184559A CN 111184559 A CN111184559 A CN 111184559A CN 201911426627 A CN201911426627 A CN 201911426627A CN 111184559 A CN111184559 A CN 111184559A
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- Prior art keywords
- handle
- handle body
- linkage
- rod
- scalpel
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000005452 bending Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
- A61B17/3213—Surgical scalpels, knives; Accessories therefor with detachable blades
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
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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)
- 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)
- Orthopedic Medicine & Surgery (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention provides a surgical knife comprising: a scalpel body and a jacket; wherein, scalpel body includes: the handle body, the cutter body, the transmission mechanism and the trigger; the handle body is in a pistol shape with a hollow interior, one end of the handle body is an outlet end, and the other end of the handle body is a handle end; one end of the cutter body is arranged at the outlet end of the handle body, and the other end of the cutter body is a free end; the trigger is arranged at the bending part of the handle; the transmission mechanism is arranged between the handle and the trigger, and the transmission mechanism is integrally arranged in the handle. The jacket is sleeved at the free end of the cutter body. The invention has the characteristics of simple structure, light weight, low cost, convenient use and the like, and can be widely applied to the medical field.
Description
Technical Field
The invention relates to the technical field of surgical operations, in particular to a scalpel.
Background
With the development of the scientific and technological level and the improvement of the living standard of people, the minimally invasive medical treatment is more and more popular among doctors and patients due to the characteristics of small pain, small wound, tiny scars, less bleeding during operation, quick body recovery and the like caused by the minimally invasive medical treatment. Ultrasonic surgical instruments are widely used in minimally invasive medical procedures. However, the ultrasonic surgical instrument has too many parts and heavy weight, which easily causes hand fatigue of the doctor in the process of holding and using, and may affect the operation to a certain extent.
Therefore, in the prior art, the surgical instrument for minimally invasive surgery has the problems of complex structure, heavy weight, inconvenient use, high cost and the like.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a scalpel that has simple structure, light weight, low cost and convenient use.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a scalpel, comprising: a scalpel body and a jacket; wherein, scalpel body includes: the handle body, the cutter body, the transmission mechanism and the trigger;
the handle body is in a pistol shape with a hollow interior, one end of the handle body is an outlet end, and the other end of the handle body is a handle end; one end of the cutter body is horizontally arranged at the outlet end of the handle body, and the other end of the cutter body is a free end; the trigger is arranged at the outer side of the bent part of the handle body; the transmission mechanism is arranged between the handle and the trigger and between the handle body and the cutter body, and the transmission mechanism is integrally arranged in the handle. The jacket is sleeved at the free end of the cutter body.
In summary, the scalpel of the present invention comprises a pistol-shaped handle, a scalpel body, a trigger and a transmission mechanism, wherein the transmission mechanism connects the handle, the trigger and the scalpel body, the scalpel body is mounted at an outlet end of the handle, and the trigger is mounted at an outer side of a bending portion of the handle. When the trigger is pressed by hand, the trigger drives the transmission mechanism to move, and the transmission mechanism drives the cutter body to move inwards or outwards towards the handle body, so that the operation is completed. Therefore, the scalpel is simple in structure, light in weight, low in cost and convenient to use.
Drawings
Fig. 1 is a schematic view of the overall composition structure of a scalpel body according to the present invention.
Fig. 2 is an enlarged schematic view of a surgical knife holder according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the overall composition structure of a scalpel body according to the present invention. Fig. 2 is an enlarged schematic view of a surgical knife holder according to the present invention. As shown in fig. 1 and 2, the scalpel according to the present invention includes: a scalpel body, a jacket 20; wherein, scalpel body includes: the handle body, the cutter body, the transmission mechanism and the trigger; wherein the content of the first and second substances,
the handle body is in a pistol shape with a hollow interior, one end of the handle body is an outlet end, and the other end of the handle body is a handle end; one end of the cutter body is horizontally arranged at the outlet end of the handle body, and the other end of the cutter body is a free end; the trigger is arranged at the outer side of the bent part of the handle body; the transmission mechanism is arranged between the handle and the trigger and between the handle body and the cutter body, and the transmission mechanism is integrally arranged in the handle. The jacket 20 is sleeved on the free end of the cutter body.
In a word, the scalpel comprises a pistol-shaped handle body, a scalpel body, a trigger and a transmission mechanism, wherein the transmission mechanism is connected with the handle body, the trigger and the scalpel body, the scalpel body is arranged at the outlet end of the handle body, and the trigger is arranged at the outer side of the bent part of the handle body. When the trigger is pressed by hand, the trigger drives the transmission mechanism to move, and the transmission mechanism drives the cutter body to move inwards or outwards towards the handle body, so that the operation is completed. Therefore, the scalpel is simple in structure, light in weight, low in cost and convenient to use.
In the present invention, the cutter body includes: the tissue cutting device comprises an elastic forceps head 1, a tissue gasket 2 and a cutter bar assembly 3; the cutter bar component 3 comprises an inner rod 17, an outer rod 18 and a push plate 16, wherein the outer rod 18 is of a hollow structure; the inner rod 17 penetrates through the outer rod 18, one end of the sleeved inner rod 17 and one end of the sleeved outer rod 18 are fixedly inserted into the outlet end of the handle body, and one end of the inner rod 17 inserted into the outlet end of the handle body is also fixedly connected with a push plate 16; the other end of the inner rod 17 is fixedly provided with an elastic forceps head 1 as a free end, the other end of the outer rod 18 is fixedly provided with a tissue gasket 2 as a free end, the tissue gasket 2 is inelastic, and the elastic forceps head 1 and the tissue gasket 2 correspondingly form a cutter.
In the present invention, the trigger includes: a rotating shaft 6 and a wrench 7; wherein, spanner 7 is arc L type, and spanner 7 short side limit top is rotated and is connected on pivot 6, and pivot 6 is fixed in inside the handle body bending part, spanner 7 set up in the handle body bending part outside.
In the present invention, the transmission mechanism includes: the device comprises a card 9, a first limit clamping groove 10, a first linkage rod 8, a rotor 11, a second linkage rod 12, a second limit clamping groove 13, a linkage piece 15, a push plate 16, a first spring 5, a second spring 14, a fixed sleeve 19 and a baffle plate 21; wherein, the card 9 and the first limiting clamping groove 10 are both arc-shaped.
The first limiting clamping groove 10 is arranged at the lower part in the handle end of the handle body, one end of the card 9 is fixed at the long side of the wrench 7, the other end of the card 9 is a free end, and the free end of the card 9 is inserted into the first limiting clamping groove 10.
The second limiting clamping groove 13 is vertically arranged at the upper part in the handle of the handle body along the handle end of the handle body, the rotor 11 is rotatably arranged in the second limiting clamping groove 13, and the top end of the second limiting clamping groove 13 is fixedly connected with the lower end of the linkage piece 15; one end of the first linkage rod 8 is fixed at the upper part of one end of the long side clamping sheet 9 of the wrench 7, and the other end of the first linkage rod 8 is fixed on the second linkage rod 12; one end of a second linkage rod 12 is sleeved on the shaft of the rotor 11, the other end of the second linkage rod 12 is rotatably fixed on a fixing sleeve 19, and the fixing sleeve 19 is fixed above a first limiting clamping groove 10 on the handle of the handle body; the second linkage rod 12 is mounted in an inclined manner.
The linkage piece 15 is horizontally arranged at the upper part in the handle body; in the handle body, the front end of the linkage piece 15 is provided with a push plate 16, and the push plate 16 is fixedly connected to the front side of the pull pin 4; a first spring 5 is further arranged above the front part of the linkage piece 15, the first spring 5 is horizontally arranged in the handle body, one end of the first spring 5 is positioned on one side of the pull pin 4, but one end of the first spring 5 is not fixedly connected with the pull pin 4, and the other end of the first spring 5 is fixed with the inside of the handle body; the rear end of the linkage piece 15 is fixedly connected with one end of the second spring 14, the other end of the second spring 14 is fixed on a baffle plate 21, and the baffle plate 21 is fixed at the rear end in the handle body.
In practical application, the linkage 15 and the push plate 16 can be an integral structure; the linkage piece 15 and the second limit card slot 13 can also be of an integrated structure.
In the present invention, the inclination angle θ of the second linkage rod 12 is an angle of the second linkage rod 12 deviating from the vertical direction, and the size of the inclination angle θ is 10 ° to 40 °.
In the present invention, the relationship between the inclination angle θ of the second link lever 12 and the moving distance d of the link 15 is:
where l represents the length of the second linkage rod 12.
In the invention, the jacket 20 is sleeved at the free end of the cutter body, and specifically comprises the following components: the jacket 20 is sleeved at one end of the binding clip 1 of the cutter body; the jacket 20 has a square hollow structure as a whole, and the hollow structure has a funnel shape.
In the present invention, the first spring 5 acts to limit the backward movement of the inner lever 17. In practice, the second linkage rod 12 is installed at an angle.
In conclusion, when the scalpel is held by a hand, the wrench is pressed, moves towards the direction close to the handle along the rotating shaft, pushes the clamping piece to move towards the inside of the first limiting clamping groove, meanwhile, the wrench transmits backward thrust applied to the first linkage rod to the second limiting clamping groove through the second linkage rod, the second limiting clamping groove drives the linkage piece to move backward, and the linkage piece compresses the second spring to move backward; the linkage piece moving backwards drives the pull pin and the push plate to move backwards and compress the first spring; the push plate further drives the elastic forceps head to move backwards, and at the moment, the elastic forceps head and the tissue gasket which form the cutter are correspondingly closed. In fact, when the second linkage rod transmits a backward thrust to the second limiting clamping groove, the second linkage rod rotates backward at a slight angle around the fixed sleeve, so that the rotor has a slight upward movement process in the second limiting clamping groove. The wrench is loosened, moves in the direction away from the handle along the rotating shaft, pulls the card to move towards the outside of the first limiting clamping groove, meanwhile, the wrench transmits forward pulling force applied to the first linkage rod to the second limiting clamping groove through the second linkage rod, the second limiting clamping groove drives the linkage piece to move forward, and the compressed second spring also provides forward elastic force for the linkage piece; the pull pin and the push plate further drive the elastic binding clip to move forwards under the pushing action of the linkage piece and the elastic action of the compressed first spring, at the moment, the elastic binding clip forming the cutter is correspondingly opened with the tissue gasket, and the cutter is reset. In fact, when the second linkage rod transmits a forward pulling force to the second limiting clamping groove, the second linkage rod rotates forwards at a slight angle around the fixed sleeve, so that the rotor has a slight downward movement process in the second limiting clamping groove. Therefore, the components of the pistol-shaped handle body, the scalpel body, the trigger and the transmission mechanism in the scalpel are simple, and except that the scalpel meets the medical requirement, all the other components are made of common materials, so the scalpel has lower cost and lighter weight; furthermore, the scalpel is convenient to use. In addition, when the scalpel is in a non-working state, the scalpel part is sleeved by the jacket, so that the sanitation and the safety of the scalpel are guaranteed.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A surgical knife, comprising: a scalpel body and a jacket; wherein, scalpel body includes: the handle body, the cutter body, the transmission mechanism and the trigger;
the handle body is in a pistol shape with a hollow interior, one end of the handle body is an outlet end, and the other end of the handle body is a handle end; one end of the cutter body is horizontally arranged at the outlet end of the handle body, and the other end of the cutter body is a free end; the trigger is arranged at the outer side of the bent part of the handle body; the transmission mechanism is arranged between the handle and the trigger and between the handle body and the cutter body, and the transmission mechanism is integrally arranged in the handle;
the jacket is sleeved at the free end of the cutter body.
2. The surgical knife of claim 1, wherein the knife body comprises: the elastic forceps head, the tissue gasket and the cutter bar assembly; the cutter bar assembly comprises an inner rod, an outer rod and a pull pin, wherein the outer rod is of a hollow structure;
the inner rod is sleeved in the outer rod in a penetrating manner, one end of the sleeved inner rod and one end of the sleeved outer rod are fixedly inserted in the outlet end of the handle body, and one end of the inner rod inserted in the outlet end of the handle body is also fixedly connected with a pull pin; the other end of the inner rod is fixedly provided with an elastic forceps head as a free end, the other end of the outer rod is fixedly provided with a tissue gasket as a free end, the tissue gasket is non-elastic, and the elastic forceps head and the tissue gasket correspondingly form a cutter.
3. A scalpel according to claim 2, wherein the trigger comprises: a rotating shaft and a wrench; wherein the content of the first and second substances,
the spanner is arc L type, and spanner minor flank side top is rotated and is connected in the pivot, and the pivot is fixed in inside the handle body bending part, the spanner set up in the handle body bending part outside.
4. A scalpel according to claim 3, in which the drive mechanism comprises: the clamping piece, the first limiting clamping groove, the first linkage rod, the rotor, the second linkage rod, the second limiting clamping groove, the linkage piece, the push plate, the first spring, the second spring, the fixed sleeve and the baffle plate; the card and the first limiting clamping groove are both arc-shaped;
the first limiting clamping groove is arranged at the lower part in the handle end of the handle body, one end of the card is fixed at the long side of the wrench, the other end of the card is a free end, and the free end of the card is inserted into the first limiting clamping groove;
the second limiting clamping groove is vertically arranged at the upper part in the handle body along the handle body handle end, the rotor is rotatably arranged in the second limiting clamping groove, and the top end of the second limiting clamping groove is fixedly connected with the lower end of the linkage piece; one end of the first linkage rod is fixed at the upper part of one end of the long side clamping piece of the wrench, and the other end of the first linkage rod is fixed on the second linkage rod; one end of the second linkage rod is sleeved on the shaft of the rotor, the other end of the second linkage rod is rotatably fixed on the fixing sleeve, and the fixing sleeve is fixed above the first limiting clamping groove on the handle body handle; the second linkage rod is installed in an inclined mode;
the linkage piece is horizontally arranged at the upper part in the handle body; a push plate is arranged at the front end of the linkage part in the handle body and fixedly connected to the front side of the pull pin; a first spring is further arranged above the front part of the linkage part and horizontally arranged in the handle body, one end of the first spring is positioned on one side of the pull pin, but one end of the first spring is not fixedly connected with the pull pin, and the other end of the first spring is fixed with the inside of the handle body; the rear end of the linkage piece is fixedly connected with one end of a second spring, the other end of the second spring is fixed on a baffle, and the baffle is fixed at the rear end in the handle body.
5. The scalpel of claim 4, wherein the angle θ of the second linkage rod is an angle of the second linkage rod from vertical, and the angle θ is in a range of 10 ° to 40 °.
6. A scalpel according to claim 5, wherein the angle of inclination θ of the second linkage rod to the distance d of movement of the linkage is such that:
wherein l represents the length of the second link lever.
7. The scalpel as in claim 2, 3 or 4, wherein the collet is sleeved at the free end of the scalpel body, and specifically comprises: the jacket is sleeved at one end of the binding clip of the cutter body;
the whole jacket is of a square hollow structure, and the hollow structure is of a funnel shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911426627.2A CN111184559A (en) | 2019-12-24 | 2019-12-24 | Surgical knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911426627.2A CN111184559A (en) | 2019-12-24 | 2019-12-24 | Surgical knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111184559A true CN111184559A (en) | 2020-05-22 |
Family
ID=70684506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911426627.2A Pending CN111184559A (en) | 2019-12-24 | 2019-12-24 | Surgical knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111184559A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140005701A1 (en) * | 2012-06-29 | 2014-01-02 | Ethicon Endo-Surgery, Inc. | Surgical instruments with articulating shafts |
| CN104224279A (en) * | 2013-06-18 | 2014-12-24 | 瑞奇外科器械(中国)有限公司 | Ultrasonic shears tip and clamping drive mechanism thereof |
| CN208339569U (en) * | 2017-08-08 | 2019-01-08 | 湖南瀚德微创医疗科技有限公司 | A kind of ultrasonic surgical blade handle |
| CN111053597A (en) * | 2019-12-24 | 2020-04-24 | 河南省驼人医疗科技有限公司 | Surgical knife |
| CN212140538U (en) * | 2019-12-24 | 2020-12-15 | 河南理工大学 | Surgical knife |
-
2019
- 2019-12-24 CN CN201911426627.2A patent/CN111184559A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140005701A1 (en) * | 2012-06-29 | 2014-01-02 | Ethicon Endo-Surgery, Inc. | Surgical instruments with articulating shafts |
| CN104224279A (en) * | 2013-06-18 | 2014-12-24 | 瑞奇外科器械(中国)有限公司 | Ultrasonic shears tip and clamping drive mechanism thereof |
| CN208339569U (en) * | 2017-08-08 | 2019-01-08 | 湖南瀚德微创医疗科技有限公司 | A kind of ultrasonic surgical blade handle |
| CN111053597A (en) * | 2019-12-24 | 2020-04-24 | 河南省驼人医疗科技有限公司 | Surgical knife |
| CN212140538U (en) * | 2019-12-24 | 2020-12-15 | 河南理工大学 | Surgical knife |
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