CN203506838U - Heart minimally-invasive surgery scissors - Google Patents
Heart minimally-invasive surgery scissors Download PDFInfo
- Publication number
- CN203506838U CN203506838U CN201320538770.2U CN201320538770U CN203506838U CN 203506838 U CN203506838 U CN 203506838U CN 201320538770 U CN201320538770 U CN 201320538770U CN 203506838 U CN203506838 U CN 203506838U
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- CN
- China
- Prior art keywords
- sleeve pipe
- handle
- invasive surgery
- minimally invasive
- pull bar
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Abstract
The utility model provides a pair of heart minimally-invasive surgery scissors. The surgery scissors comprise a long and thin sleeve, a cutter head, a cutter handle, a handle and a pull rod, wherein the sleeve is provided with a first end and a second end, the first end and the second end are opposite to each other, the cutter head is fixed to the first end of the sleeve, the near end of the cutter handle is connected to the second end of the sleeve, a through hole is formed in the portion, close to the sleeve, of the cutter handle, the handle is composed of two arm portions which extend to the near end of the cutter handle from the far end of the cutter handle, and the pull rod is movably matched with the inner portion of the through hole and the inner portion of the sleeve. The cutter head is connected to one end of the pull rod through a first linkage mechanism, the tail ends of the two arm portions are connected to the other end of the pull rod through a second linkage mechanism, and grabbing portions are formed on the portions, close to the sleeve, of the two arm portions respectively. According to the heart minimally-invasive surgery scissors, force is exerted on the end, close to a cutter pipe, of the handle, and therefore the cutter head of the scissors can be accurately operated even under the condition that the cutter pipe is very long, and operation can be conducted on a deep surgical site.
Description
Technical field
This utility model relates to medical instruments field, more specifically, relates to a kind of heart Minimally Invasive Surgery shears that carries out shearing manipulation in heart Minimally Invasive Surgery in the body for the treatment of target.
Background technology
In operation on heart, often need in the body for the treatment of target, carry out shearing manipulation, so surgical scissors becomes requisite apparatus in operation process.Traditional surgical scissors volume is large, and it is large that two blades open scope.When needing the position of shearing manipulation darker, operative incision must enough just can make shears open up into suitable size greatly.
The utility model CN201481507U(that authorized of China is hereinafter referred to as patent documentation 1) a kind of laparoscopic surgery scissors disclosed, one end of two shears folders of this shears respectively has blade, and the other end crosses one another and be rotatably mounted on shears holder by shears connecting pin at infall, the other end of shears folder is rotatably mounted on two connecting plates by connecting plate connecting pin, and connecting plate is fixed on one end of pitman coupling by link pin.The disclosed laparoscopic surgery scissors of this patent documentation 1 is by operating the flexible handle of scissor handle, to control the opening and closing of scissors bit, thereby carries out shearing manipulation.
The utility model CN201602812U(that authorized of China is hereinafter referred to as patent documentation 2) needle holder using under a kind of peritoneoscope disclosed, the main body base of this needle holder is provided with pull bar, pull bar is arranged on the inner chamber of fixed sleeving, one end of pull bar is hinged with movable jaw from fixed sleeving inner chamber passes, and the other end is hinged by two braces and operating grip.
The handle of patent documentation 1 and patent documentation 2 disclosed medical apparatus and instruments is scissor handle, and this handle needs doctor in the handle end application of force, to control the switching of the holding piece of scissors blades or needle holder.This medical apparatus and instruments in order accurately to control the switching of shears or holding piece in operation, and cutter pipe can not be oversize, otherwise the operation of control device exactly.
Along with the development of medical skill, in order to reduce the hemorrhage and postoperative recovery of quickening treatment target in operation on heart, Minimally Invasive Surgery becomes a kind of trend.In order to complete the shearing manipulation to darker operative site under the condition at minor operation otch, even if need a kind of surgical scissors that also can operate accurately in the situation that cutter pipe is very long.
Summary of the invention
In order to address the above problem, this utility model provides a kind of heart Minimally Invasive Surgery shears, this surgical scissors when operation be at handle near the end application of force of head to control the folding of cutter head, even if also can operate accurately shears cutter head thus in the situation that cutter pipe is very long, thereby can operate at darker operative site.
According to this utility model, above-mentioned heart Minimally Invasive Surgery shears comprises slender casing, and described sleeve pipe has relative first end and the second end; Cutter head, described cutter head is fixed to the first end of described sleeve pipe; Handle of a knife, the near-end of described handle of a knife is connected to the second end of described sleeve pipe, and a part for the close sleeve pipe of handle of a knife is formed with through hole; Handle, by the far-end from handle of a knife, two arms to proximal extension form described handle; And pull bar, described pull bar is engaged in through hole and sleeve pipe movably, wherein cutter head is connected to one end of pull bar by the first link gear, the end of two arms is connected to the other end of pull bar by the second link gear, and two arms are formed with grip part in the part near sleeve pipe respectively.
Alternatively, cutter head has two blades, and one end of blade has respectively blade, and two blades mutually intersect and at infall, are pivotally secured in the first end of sleeve pipe.
The first link gear comprises two first connecting rods, and described first connecting rod has respectively first end and the second end.The first end of first connecting rod is pivotally connected to respectively in blade the other end of corresponding.The second end of first connecting rod is pivotally connected to one end of described pull bar.
Alternatively, blade is pivotally secured in the first end of sleeve pipe by pivot.
The second end of sleeve pipe has expansion section, and the diameter of described expansion section is greater than the diameter of the main body of sleeve pipe.Expansion section is formed with groove.Described near-end has the shape corresponding with groove, and near-end is connected in groove.
The second link gear comprises two second connecting rods, and described second connecting rod has respectively first end and the second end.The first end of second connecting rod is pivotally connected to respectively in two arms the end of corresponding, and the second end of second connecting rod is pivotally connected to the other end of described pull bar.
Alternatively, the first end of second connecting rod and the second end are pivotally connected to respectively the other end of arm and pull bar by pivot.
Preferably, the second end of sleeve pipe is provided with from the outside outstanding protuberance of sleeve pipe, and protuberance has air inlet, and the internal communication of air inlet and sleeve pipe is to send into clean air in sleeve pipe.
Alternatively, the first end of sleeve pipe is formed with recess.
Preferably, grip part is formed with a plurality of cannelures.
Accompanying drawing explanation
Above-mentioned and other side of the present utility model and feature are by from presenting the explanation of embodiment is clear below in conjunction with accompanying drawing, in the accompanying drawings:
Fig. 1 is according to the schematic perspective view of the heart Minimally Invasive Surgery shears of this utility model embodiment;
Fig. 2 is the schematic diagram that shows the blade closure state of heart Minimally Invasive Surgery shears;
Fig. 3 is the schematic diagram that shows the blade open configuration of heart Minimally Invasive Surgery shears;
Fig. 4 shows according to the phantom of the structure of heart Minimally Invasive Surgery shears of the present utility model;
Fig. 5 is the schematic diagram that shows user operation heart Minimally Invasive Surgery shears; And
Fig. 6 a-6e is the schematic diagram of the cutter head of heart Minimally Invasive Surgery shears, and wherein Fig. 6 a is the view that shows the blade shapes of cutter head, and Fig. 6 b-6e is the schematic diagram that cutter head rotates.
The specific embodiment
Describe with reference to the accompanying drawings illustrative of the present utility model, non-limiting example in detail, to being further described according to heart Minimally Invasive Surgery shears of the present utility model.
Hereinafter with reference to Fig. 1-4, illustrate according to the heart Minimally Invasive Surgery shears of this utility model embodiment.According to heart Minimally Invasive Surgery shears 1 of the present utility model, comprise cutter head 2, slender casing 3, handle of a knife 4, handle 5 and pull bar 6.
Particularly, with reference to Fig. 1 and Fig. 4, slender casing 3 has relative first end 31 and the second end 32, and described sleeve pipe forms the cutter pipe of surgical scissors 1.Cutter head 2 is fixed to the first end 31 of sleeve pipe 3.The near-end 41 of handle of a knife 4 is connected to the second end 32 of sleeve pipe 3, and a part for the close sleeve pipe 3 of handle of a knife 4 is formed with through hole 42.Pull bar 6 is engaged in through hole 42 and sleeve pipe 3 movably.
In an embodiment of the present utility model, the first link gear comprises two first connecting rods 8, and first connecting rod has respectively first end and the second end.The first end of first connecting rod 8 is pivotably connected to respectively in blade 7 other end of corresponding, and the second end of first connecting rod 8 is pivotably connected to described one end 61 of pull bar 6.In the present embodiment, the first end of first connecting rod 8 and the second end are connected respectively to cutter head 2 and sleeve pipe 3 by pivot.Yet the connected mode of first connecting rod and cutter head and sleeve pipe is not limited to this, also can be pivotably connected to hinged or in other known methods cutter head and sleeve pipe.
The second end 32 of sleeve pipe 3 can have expansion section alternatively, and the diameter of this expansion section is greater than the diameter of the main body of sleeve pipe 3.This expansion section is formed with groove 33.The near-end 41 of handle of a knife 4 has the shape corresponding with groove 33, and near-end 41 is connected in groove 33, thereby handle of a knife is connected to sleeve pipe.Because the second end of sleeve pipe has for connecting the expansion section of handle of a knife, therefore can obtain elongated sleeve pipe be connected in the situation that guaranteeing that handle of a knife and sleeve pipe are stablized.In addition, the first end 31 of sleeve pipe 3 for example can be formed with recess 34, and the end being connected with the first link gear of cutter head is arranged in recess 34.
According to this utility model, the handle 5 of surgical scissors 1 consists of two arms, and described two arms extend to near-end 41 from the far-end 43 of handle of a knife 4.The end of two arms is connected to the other end 62 of pull bar 6 by the second link gear, and two arms are formed with grip part 51 at the part place near sleeve pipe 3 respectively.Referring to Fig. 4, grip part 51 is preferably formed with a plurality of cannelures 52, prevents that hands from sliding during with grasped handle at user.
According to an embodiment of the present utility model, described the second link gear comprises two second connecting rods 9, and described second connecting rod has respectively first end and the second end.The first end of second connecting rod 9 is pivotably connected to respectively in two arms of handle 5 end of corresponding, and the second end of second connecting rod 9 is pivotably connected to the described other end 62 of pull bar 6.Alternatively, the first end of second connecting rod 9 and the second end are pivotably connected to handle arm and pull bar by pivot respectively.Yet the connected mode of the second link gear and handle and pull bar is not limited to this, also can be pivotably connected to hinged or in other known methods handle and pull bar.In addition, above-mentioned link gear is only to illustrate as example, and the structure of link gear is not limited to this.
According in heart Minimally Invasive Surgery shears of the present utility model, the second end 32 of slender casing 3 is preferably provided with protuberance 35, and described protuberance is outwards outstanding from slender casing 3.As shown in Figure 4, protuberance 35 has air inlet 36, the internal communication of described air inlet and sleeve pipe 3, and so that clean air is sent in sleeve pipe, thus the stain that the dust in clean sleeve pipe and operation process enter.Clean air preferably adopts Compressed Gas, for example compression arbon dioxide, compressed inert, compressed nitrogen and similar Compressed Gas.Owing to thering is the protuberance 35 of air inlet 36 and be arranged on one end of the close handle of slender casing, therefore by air inlet, input the operation that can not have influence on surgical scissors in operation process that operates in of clean air, and then can in operation, realize the cleaning completely to sleeve pipe.
Next with reference to Fig. 4-6, illustrate according to the operation of heart Minimally Invasive Surgery shears of the present utility model.While carrying out shearing manipulation in need to the body at treatment target in operation on heart, user is similar to that pen holding posture is held the handle 5 of surgical scissors and grip part 51 places at handle 5 by forefinger and thumb press, handle of a knife 4 is near the intersection between forefinger and thumb, as shown in Figure 5.Like this, user is easy to control surgical scissors.
The operation of heart Minimally Invasive Surgery shears is described referring to Fig. 4 particularly.When handle 5 opens, the second link gear pushing drawing rod 6 moves right in through hole 42 and sleeve pipe 3, drives the outside pivotable of two first connecting rods 8 of the first link gear simultaneously, thereby two blades 7 are rotated and opens.On the contrary, when handle 5 is closed, by the second link gear pushing drawing rod 6, in through hole 42 and sleeve pipe 3, be moved to the left, drive the inside pivotable of two first connecting rods 8 of the first link gear simultaneously, thus two blades 7 are rotated and closure to complete shearing manipulation.In addition, because the second end 62 of pull bar 6 is accommodated in the through hole 42 of handle of a knife 4, therefore only need in-situ transesterification moving knife handle just can make the blade sensing different directions of blade, as shown in Fig. 6 b-6e.
According to heart Minimally Invasive Surgery shears of the present utility model, be the end application of force near cutter pipe at handle, even if also can operate accurately shears cutter head thus in the situation that cutter pipe is very long, thereby can operate at darker operative site.Therefore, heart Minimally Invasive Surgery shears of the present utility model can have very long length.For example, cutter length of tube can be in the scope of 30-400mm.In addition, traditional surgical scissors volume is larger, and it is larger that two blades open scope.And surgical scissors of the present utility model is realized opening of blade by transmission campaign, make blade to open very littlely.For example, the scope of opening of blade is in the scope of 5-50mm.In addition,, although be only to describe (as shown in Figure 6 a) to thering is the surgical scissors of Curved cutter head above, one skilled in the art will appreciate that the shape of cutter head is not limited to this, and can be flat shape, hook-like shape or other suitable shape.
Although some embodiment of total inventive concept of the present utility model are shown and explanation, but those of ordinary skills will be understood that, in the situation that not deviating from spirit of the present utility model and principle, can make a change these embodiment, scope of the present utility model claims with and equivalent in limit.
Claims (10)
1. a heart Minimally Invasive Surgery shears, comprising:
Slender casing, described sleeve pipe has relative first end and the second end;
Cutter head, described cutter head is fixed to the first end of described sleeve pipe;
Handle of a knife, the near-end of described handle of a knife is connected to the second end of described sleeve pipe, and a part for the close described sleeve pipe of described handle of a knife is formed with through hole;
Handle, by the far-end from described handle of a knife, two arms to described proximal extension form described handle; With
Pull bar, described pull bar can be engaged in described through hole and described sleeve pipe movably,
It is characterized in that:
Described cutter head is connected to one end of described pull bar by the first link gear;
The end of described two arms is connected to the other end of described pull bar by the second link gear; And
Described two arms are formed with grip part in the part near described sleeve pipe respectively.
2. heart Minimally Invasive Surgery shears according to claim 1, it is characterized in that, described cutter head has two blades, and one end of described blade has respectively blade, and described two blades mutually intersect and at infall, can be fixed on pivotally the first end of described sleeve pipe.
3. heart Minimally Invasive Surgery shears according to claim 2, is characterized in that:
Described the first link gear comprises two first connecting rods, and described first connecting rod has respectively first end and the second end;
The first end of described first connecting rod is pivotally connected to respectively in described blade the other end of corresponding; And
The second end of described first connecting rod is pivotally connected to described one end of described pull bar.
4. heart Minimally Invasive Surgery shears according to claim 2, is characterized in that, described blade can be fixed on the first end of described sleeve pipe pivotally by pivot.
5. heart Minimally Invasive Surgery shears according to claim 1, is characterized in that:
The second end of described sleeve pipe has expansion section, and the diameter of described expansion section is greater than the diameter of the main body of described sleeve pipe;
Described expansion section is formed with groove; And
Described near-end has the shape corresponding with described groove, and described near-end is connected in described groove.
6. heart Minimally Invasive Surgery shears according to claim 1, is characterized in that:
Described the second link gear comprises two second connecting rods, and described second connecting rod has respectively first end and the second end;
The first end of described second connecting rod is pivotally connected to respectively in described two arms the end of corresponding; And
The second end of described second connecting rod is pivotally connected to the described other end of described pull bar.
7. heart Minimally Invasive Surgery shears according to claim 6, is characterized in that, the first end of described second connecting rod and the second end are pivotally connected to respectively the described other end of described arm and described pull bar by pivot.
8. heart Minimally Invasive Surgery shears according to claim 1, it is characterized in that, the second end of described sleeve pipe is provided with from the outside outstanding protuberance of described sleeve pipe, and described protuberance has air inlet, and the internal communication of described air inlet and described sleeve pipe is to send into clean air in described sleeve pipe.
9. heart Minimally Invasive Surgery shears according to claim 1, is characterized in that, the first end of described sleeve pipe is formed with recess.
10. heart Minimally Invasive Surgery shears according to claim 1, is characterized in that, described grip part is formed with a plurality of cannelures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538770.2U CN203506838U (en) | 2013-08-30 | 2013-08-30 | Heart minimally-invasive surgery scissors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538770.2U CN203506838U (en) | 2013-08-30 | 2013-08-30 | Heart minimally-invasive surgery scissors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203506838U true CN203506838U (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320538770.2U Expired - Lifetime CN203506838U (en) | 2013-08-30 | 2013-08-30 | Heart minimally-invasive surgery scissors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203506838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445823A (en) * | 2013-08-30 | 2013-12-18 | 沈雅 | Cardiac minimally-invasive surgery scissors |
-
2013
- 2013-08-30 CN CN201320538770.2U patent/CN203506838U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445823A (en) * | 2013-08-30 | 2013-12-18 | 沈雅 | Cardiac minimally-invasive surgery scissors |
| CN103445823B (en) * | 2013-08-30 | 2017-08-04 | 谢斌 | Cardiac minimally-invasive surgery scissors |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |