CN102125454A - Shape memory alloy-based forceps for use in minimally invasive surgery - Google Patents
Shape memory alloy-based forceps for use in minimally invasive surgery Download PDFInfo
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- CN102125454A CN102125454A CN 201110062740 CN201110062740A CN102125454A CN 102125454 A CN102125454 A CN 102125454A CN 201110062740 CN201110062740 CN 201110062740 CN 201110062740 A CN201110062740 A CN 201110062740A CN 102125454 A CN102125454 A CN 102125454A
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- handle
- marmem
- minimally invasive
- invasive surgery
- shape memory
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Abstract
The invention discloses a shape memory alloy-based forceps for use in minimally invasive surgery, which belongs to the technical field of instruments for minimally invasive surgery, and comprises a first handle, a second handle, a drawing thread, a regulator, an external shaft, a shape memory alloy, a spindle, a jaw and strip teeth, wherein the regulator is fixed on the first handle; the external shaft is connected with the regulator; the external shaft is sleeved with the spindle; the spindle is connected with the jaw; one end of the shape memory alloy is connected with the spindle, and the other end of the shape memory alloy is connected with the drawing thread; the external shaft and the regulator are sleeved with the drawing thread in turn; the drawing thread is connected with the second handle; and the first handle and the second handle are connected. Under the condition of acquiring effective clamping force, the clamped tissues can be well protected without being hurt, and thus, a minimally invasive effect is achieved.
Description
Technical field
What the present invention relates to is the device in a kind of Minimally Invasive Surgery technique with the apparatus field, in particular a kind of Minimally Invasive Surgery pincers based on marmem.
Background technology
Operating forceps is a kind of clinically common operating theater instruments, the tissue that need handle in order to clamping.Yet, problems have appearred in the process of clinical application: chucking power hour, the tissue of clamping slides easily; If chucking power is excessive, then cause tissue injury easily.Under the prerequisite that does not cause tissue injury, obtain effective chucking power, be the key issue in the operating forceps safe handling.
But intellectual material is meant the perception environmental stimulus, and it is had the material of certain intelligent characteristic response.Divide by function, intellectual material can be divided into optical fibers, marmem, piezoelectricity, electro rheological fluids and electricity (magnetic) and cause telescopic material etc.Wherein, marmem is a kind of intellectual material that can remember original shape, and possesses superelastic nature, and promptly its mechanics elastic range is far above general material.Marmem also has excellent biological compatibility, has a wide range of applications at biomedical sector, as: thrombus filter, backbone correcting rod, wire for correcting shape of tooth etc.Utilize the superelastic nature of marmem; exploitation has the Minimally Invasive Surgery apparatus of intelligent characteristic; not only can obtain effective chucking power, but also can protect tissue to avoid damage, this has important scientific meaning and using value for clinical operation.
Find by prior art documents, China's utility application number: 200720023268.2, title: operating forceps, this technology discloses a kind of operating forceps, comprise: handle, pincers handle, jointed shaft, binding clip, its structure is: the inner surface of described binding clip has the anti-skidding striped parallel with the binding clip long axis direction.This operating forceps has strengthened non-skid property, but still can't overcome because the excessive tissue injury that causes of chucking power.
And for example: Chinese utility application number: CN200820021166.1, title: operating forceps, this technology discloses a kind of operating forceps, utilize rotating shaft that the two halves of caliper is connected into a relatively turnable integral body, the rear end of caliper two halves is provided with handle respectively, the front end of caliper forms jaw, between two handles of caliper rear end the elasticity card is set, and described jaw be identical mutually arcwall face at the two halves occlusal surface of closure state on it.Though this technology has the incisxal edge accurate positioning, sews up convenient, involutory neat advantage,, still do not solve the tissue injury's problem that is held that causes because of chucking power is excessive.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of Minimally Invasive Surgery pincers based on marmem are provided, to avoid the causing damage that is held tissue because of chucking power is excessive.
The present invention is achieved by the following technical solutions, the present invention includes: first handle, second handle, draught line, actuator, outer shaft, marmem, main shaft and jaw, wherein: actuator is fixed on the first handle, outer shaft links to each other with actuator, outer shaft socket main shaft, main shaft links to each other with jaw, one end of marmem links to each other with main shaft, the other end links to each other with draught line, outer shaft and actuator be the socket draught line successively, draught line links to each other with second handle, and first handle and second handle are movably connected.
Described second handle is provided with the bar shaped tooth.
Shown draught line is that tinsel is made.
Described marmem is a kind of in Ti-Ni base, cuprio or the iron-base marmem, and its mechanical characteristic is super-elasticity near room temperature and body temperature.Promptly when marmem is subjected to stretcher strain, when stress value surpasses certain marginal value, material internal generation stress-induced phase transformation causes its stress value not increase with strain.The present invention utilizes this characteristic, can realize the level pressure clamping to biological tissue.Promptly according to the mechanical characteristic and the safe compressive region that are held biological tissue; by design to physical dimensions such as the diameter of memory alloy wire, length; realize itself and the mechanics coupling that is held tissue, thereby protection is held and organizes injury-freely effectively, and keeps enough chucking powers.
When the present invention used, finger was pulled second handle, and the draught line that is connected on the second handle drives marmem and main shaft, closes jaw, makes its grasping tissue, and the big I of chucking power is by the material behavior and the physical dimension control of marmem.
The present invention has following advantage compared to existing technology: the present invention can be under the situation that obtains effective chucking power, and protection is held tissue well, it is not sustained damage, thereby reach the effect of Wicresoft.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: first handle 1, second handle 2, draught line 3, actuator 4, outer shaft 5, marmem 6, main shaft 7, jaw 8 and bar shaped tooth 9, wherein: actuator 4 is fixed on the first handle 1, outer shaft 5 links to each other with actuator 4, outer shaft 5 socket main shafts 7, main shaft 7 links to each other with jaw 8, one end of marmem 6 links to each other with main shaft 7, the other end links to each other with draught line 3, outer shaft 5 and actuator 4 be socket draught line 3 successively, draught line 3 links to each other with second handle 2, and first handle 1 and second handle 2 are movably connected.
Described second handle 2 is provided with bar shaped tooth 9.Can be meshing with first handle 1 formation, be used for fixing the relative position of first handle 1 and second handle 2.
Described marmem 6 is a kind of in TiNi base, cuprio or the iron-base marmem.
During use, finger is pulled second handle 2, and the draught line 3 that is connected on the second handle 2 drives marmem 6 and main shaft 7, closes jaw 8, makes its grasping tissue, and the size of chucking power is by the material behavior and the physical dimension control of marmem 6.
Claims (4)
1. the Minimally Invasive Surgery based on marmem clamps, it is characterized in that, comprise: first handle, second handle, draught line, actuator, outer shaft, marmem, main shaft and jaw, wherein: actuator is fixed on the first handle, outer shaft links to each other with actuator, outer shaft socket main shaft, main shaft links to each other with jaw, one end of marmem links to each other with main shaft, the other end links to each other with draught line, outer shaft and actuator be the socket draught line successively, and draught line links to each other with second handle, and first handle and second handle are movably connected.
2. the Minimally Invasive Surgery pincers based on marmem according to claim 1 is characterized in that described second handle is provided with the bar shaped tooth.
3. the Minimally Invasive Surgery pincers based on marmem according to claim 1 is characterized in that shown draught line is that tinsel is made.
4. according to the described Minimally Invasive Surgery pincers based on marmem of above-mentioned arbitrary claim, it is characterized in that described marmem is a kind of in Ti-Ni base, cuprio or the iron-base marmem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110062740 CN102125454A (en) | 2011-03-16 | 2011-03-16 | Shape memory alloy-based forceps for use in minimally invasive surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110062740 CN102125454A (en) | 2011-03-16 | 2011-03-16 | Shape memory alloy-based forceps for use in minimally invasive surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102125454A true CN102125454A (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110062740 Pending CN102125454A (en) | 2011-03-16 | 2011-03-16 | Shape memory alloy-based forceps for use in minimally invasive surgery |
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| CN (1) | CN102125454A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103610488A (en) * | 2013-10-24 | 2014-03-05 | 上海交通大学 | Minimally-invasive endoscope operating forcep head |
| CN107174299A (en) * | 2017-07-02 | 2017-09-19 | 成都智慧鑫艺工业产品设计有限公司 | A kind of micro-wound surgical operation needle holder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07265326A (en) * | 1994-03-31 | 1995-10-17 | Olympus Optical Co Ltd | Medical treatment device |
| US5496310A (en) * | 1994-09-30 | 1996-03-05 | Exconde; Primo D. | Endoscopic cholangiogram guide instrument and method of use |
| EP0799602A1 (en) * | 1996-04-01 | 1997-10-08 | Shizuka Kaseda | Forceps |
| JPH1176252A (en) * | 1997-09-11 | 1999-03-23 | Tokin Corp | Shape memory alloy drive element and active forceps using same |
| CN1655726A (en) * | 2002-05-30 | 2005-08-17 | 尼蒂医学技术有限公司 | Surgical clip applicator device |
| CN200991287Y (en) * | 2006-11-29 | 2007-12-19 | 彭波 | Medical convenient operation pliers |
-
2011
- 2011-03-16 CN CN 201110062740 patent/CN102125454A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07265326A (en) * | 1994-03-31 | 1995-10-17 | Olympus Optical Co Ltd | Medical treatment device |
| US5496310A (en) * | 1994-09-30 | 1996-03-05 | Exconde; Primo D. | Endoscopic cholangiogram guide instrument and method of use |
| EP0799602A1 (en) * | 1996-04-01 | 1997-10-08 | Shizuka Kaseda | Forceps |
| JPH1176252A (en) * | 1997-09-11 | 1999-03-23 | Tokin Corp | Shape memory alloy drive element and active forceps using same |
| CN1655726A (en) * | 2002-05-30 | 2005-08-17 | 尼蒂医学技术有限公司 | Surgical clip applicator device |
| CN200991287Y (en) * | 2006-11-29 | 2007-12-19 | 彭波 | Medical convenient operation pliers |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103610488A (en) * | 2013-10-24 | 2014-03-05 | 上海交通大学 | Minimally-invasive endoscope operating forcep head |
| CN103610488B (en) * | 2013-10-24 | 2015-10-28 | 上海交通大学 | Laparoscope pincers binding clip |
| CN107174299A (en) * | 2017-07-02 | 2017-09-19 | 成都智慧鑫艺工业产品设计有限公司 | A kind of micro-wound surgical operation needle holder |
| CN107174299B (en) * | 2017-07-02 | 2018-10-30 | 邵杰 | A kind of micro-wound surgical operation needle holder |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110720 |