CN203953752U - A kind of Special surgical of shearing blood vessel is cut - Google Patents
A kind of Special surgical of shearing blood vessel is cut Download PDFInfo
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- CN203953752U CN203953752U CN201420329607.XU CN201420329607U CN203953752U CN 203953752 U CN203953752 U CN 203953752U CN 201420329607 U CN201420329607 U CN 201420329607U CN 203953752 U CN203953752 U CN 203953752U
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- blade
- blood vessel
- cut
- slot opening
- shearing
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Abstract
The utility model discloses a kind of Special surgical of shearing blood vessel cuts, comprise that first cuts handle and the first finger ring and the first blade, second cuts handle and the second finger ring and the second blade, first cuts handle and the first finger ring and the first blade for whole, second cuts handle and the second finger ring and the second blade for whole, the two is hinged together by axle, on the first blade, be designed with a slot opening, slot opening axially with the first blade shape α that has angle, the second blade lengths is shorter than the first blade, when the first blade and the second blade close up, the point of a knife of the second blade is positioned at slot opening 1/3～1/2 place on the first blade.This operating scissors is mainly used in the operation of human heart and upper and lower extremities, avoids cutting off arteriovenous and cause and lose blood in operation process, reduces operation risk, facilitates blood transfusion and infusion operation.For there is no skillfully to grasp blood vessel and shear the student of operation skill, be particularly suitable for using in Involved in Medical Clinical Teaching.
Description
Technical field
This utility model relates to a kind of operating scissors of medical mechanical domain, and particularly a kind of Special surgical that is applied to human heart and upper and lower extremities operation is cut.
Background technology
Venesection is the conventional surgical operation in basis clinically.Due to critical patient especially loses blood, dewaters, its superficial vein of shock patient withers, and causes very large difficulty to when rescuing transfusion, blood transfusion, and this must venesect put pipe often.In the clinical common operations such as PICC tube placing operation, cardiac operation, angiostomy, all to carry out arteriovenous incision.In addition, in physiological function experiment, a basic operation is carried out common carotid artery otch intubate to rabbit exactly, understands the impact on rabbit arterial blood pressure, respiratory movement, urine generation etc. of physiology and pharmacology factor.These operations all need blood vessel to carry out " V " type otch.
At present medical treatment is upper has for shearing the apparatus of blood vessel that ophthalmologic operation is cut, meticulous cut etc.When these operating scissorss carry out " V " type otch to blood vessel, all there is a same problem: if clinician's misoperation, while stretching too such as the relative blood vessel of shears, is easy to blood vessel to cut off, cause danger.Or the relative blood vessel of shears is stretched and be can not get position, only the outer connective tissue of blood vessel is broken and blood vessel do not cut to otch, cause intubate to insert in blood vessel wall and connective tissue gap.Particularly, in clinical medical teaching, student, when not having skillfully to grasp the operation skill of blood vessel otch, more easily goes wrong.
By the retrieval to Chinese patent database, not yet find that there is technical scheme of the same type and be recorded in patent documentation.Therefore, for the problems referred to above, design a kind of Special surgical that carries out " V " type otch and cut, to reduce operation risk, facilitate blood transfusion and infusion operation.
Utility model content
The purpose of this utility model is to provide a kind of Special surgical of shearing blood vessel to cut, and is mainly used in the operation of human heart and upper and lower extremities, avoids cutting off arteriovenous and cause and lose blood in operation process, reduces operation risk, facilitates blood transfusion and infusion operation.
In order to achieve the above object, technical solution of the present utility model is: a kind of Special surgical of shearing blood vessel is cut, comprise that first cuts handle and the first finger ring and the first blade, second and cut handle and the second finger ring and the second blade, first cuts handle and the first finger ring and the first blade for whole, second cuts handle and the second finger ring and the second blade for whole, and the two is hinged together by axle.On described the first blade, be designed with a slot opening, slot opening axially with described the first blade shape α that has angle, described the second blade lengths is shorter than the first blade, when the first blade and the second blade close up, the point of a knife of described the second blade is positioned at slot opening 1/3～1/2 place on described the first blade.
In the operating procedure of vein incision surgery, require diagonal to cut off wall of vein 1/3～1/2.By controlling the length of the second blade, guarantee that the position of tool tip of the second blade is no more than 1/3～1/2 of the first blade upper groove opening.In the time of in blood vessel is positioned over this slot opening, also just guaranteed that " V " type otch of operating scissors shearing blood vessel can not surpass 1/3～1/2 of its diameter.The first blade upper groove opening axially with the first blade shape α that has angle, also just guaranteed that diagonal cuts off the requirement of wall of vein.Thereby avoided cutting off the potential danger of blood vessel, guaranteed the accuracy of size incision, angle position simultaneously.
As a kind of improvement project, the knife edge part of described the first blade is designed to the plane without the wide cut of sword, in this wide cut plane, be provided with a slot opening, from this slot opening 1/3～1/2, start, in the described wide cut plane of the first handle of a knife direction, offer a darker rectangular groove.The second blade can be along this rectangular groove to down cut.
As another kind of improvement project, the point of a knife end partial design of described the first blade becomes the wide cut plane without sword, in this wide cut plane, be provided with a slot opening, from this slot opening 1/3～1/2, start, in the described wide cut plane of the first handle of a knife direction, offer a deep trouth.The point of a knife part of the second blade can be along this deep trouth to down cut.
In groove on described the first blade, sky is controlled at 4～6mm.The about 5mm of human vein left and right, it is comparatively appropriate that sky in groove is controlled to 4～6mm.
Contiguous as far as possible its point of a knife position of groove on described the first blade, a fusiform round and smooth rolls of sheets barrel shape is formed on this groove front end and bottom.Design can reduce the physical dimension at point of a knife and groove position as far as possible like this, thus the least possible destruction and damage surrounding tissue while guarantee shearing blood vessel.
Contiguous as far as possible its point of a knife position of groove on described the first blade, a fusiform round and smooth hook shape is formed on this groove front end and bottom.Design can further reduce the physical dimension at point of a knife and groove position like this, while being conducive to shear vascular surgery, and protection blood vessel surrounding tissue.
Slot opening the inside on described the first blade is provided with a medical grade silicon rubber packing ring, offer breach, and this gap position is corresponding with the rectangular groove in the first blade wide cut plane on this packing ring.Medical grade silicon rubber quality is more soft, and blood vessel is put into wherein, can play the effect of protection blood vessel, and anti-hemostatic tube is damaged or hurts by the corner angle at slot opening place.
The axial angle α forming with the first blade of described the first blade upper groove opening is 25～90 degree.Because shearing the object of blood vessel is for intubate, thus General Requirements diagonal otch, simultaneously according to the degree of crook of operation curved scissors, for ease of multi-angle operation, therefore be set with such angle.
Slot opening on described the first blade is shaped as similar circular-arc opening.
In operation process, using method and operation requirements that the Special surgical of shearing blood vessel is cut: take vein incision surgery as example, according to routine operation to peeling off, after ligation vein, tractive venal distal ligature, mention vein tension a little, the Special surgical that the blood vessel at the about 1cm of this ligature nearside place is placed in to shearing blood vessel is cut groove, carries out otch.Operation continues operation routinely again.
Below in conjunction with drawings and Examples, this utility model is further described.
Accompanying drawing explanation
Fig. 1 is that master of the present utility model looks schematic diagram.
Fig. 2 is the local enlarged diagram of one of form of adopting of this utility model the first blade shapes.
Fig. 3 is two local enlarged diagram of the form that adopts of this utility model the first blade shapes.
Fig. 4 is three local enlarged diagram of the form that adopts of this utility model the first blade shapes.
Fig. 5 is four local enlarged diagram of the form that adopts of this utility model the first blade shapes.
The specific embodiment
Embodiment 1
As shown in Figure 1, this utility model is sheared the Special surgical of blood vessel and is cut, and comprises that first cuts handle 2 and the first finger ring 1 being connected as a single entity with it and the first shear blade 6, second and cut handle 7 and the second finger ring 8 being connected as a single entity with it and the second shear blade 4, and the two is hinged by axle 3.At the first shear blade 6, near the position of razor sharpened, offer the slot opening 5 of similar circular arc, slot opening 5 axis of similar circular arc and the first blade 6 form 25～90 angles, specifically can select 30 °, 45 °, 60 ° angles, the interior empty size of the slot opening 5 of similar circular arc is controlled at 4～6mm, to note especially each corner angle Edge Blend angle ground smooth the slot opening 5 of similar circular arc, to prevent each corner angle limit incised wound or blood vessel of damaging.The length of the second shear blade 4 is less than the first shear blade 6, and when the first shear blade 6 and the second shear blade 4 close up, the point of a knife summit of the second shear blade 4 is just in time positioned at 1/3～1/2 place of the slot opening 5 of similar circular arc.
Embodiment 2
As shown in Figure 2, and with reference to embodiment 1, change the first blade 6 into wide cut plane without sword, at the position near this point of a knife, be provided with the slot opening 5 of similar circular arc, from 1/3～1/2 of the slot opening 5 of this similar circular arc start to first cut handle 2 directions this without in tread width plane, offer a deep trouth downwards.The second blade can be along this deep trouth to down cut.
Embodiment 3
As shown in Figure 3, and with reference to embodiment 1, change the cutter tip portion of the first blade 6 into wide cut plane without sword, in this wide cut plane, offer the slot opening 5 of similar circular arc, from the slot opening 1/3～1/2 of this similar circular arc, start, in the described wide cut plane of the first handle of a knife 2 directions, offer a deep trouth.The point of a knife part of the second blade 4 can be along this groove to down cut.
Embodiment 4
As shown in Figure 1, with reference to embodiment 1, on the slot opening 5 of similar circular arc, be provided with the silicone rubber gasket of a softness.As shown in Figure 2 and Figure 3, with reference to embodiment 2, embodiment 3, the specification of packing ring can make serial packing ring, the interior sky of packing ring is controlled at 4～6mm, correspondingly the slot opening 5 of similar circular arc can be opened largerly, to meet, put into after packing ring, within the interior sky of packing ring is still controlled at the scope of 4～6mm, assurance blood vessel can be put into packing ring smoothly.On packing ring, offer the breach corresponding with deep trouth in the first shear blade 6 wide cut planes, be convenient to the second blade 4 along this breach to down cut.
Embodiment 5
As shown in Figure 4, with reference to embodiment 1, by contiguous as far as possible its point of a knife position of the slot opening of the similar circular arc on the first blade 5, one fusiform round and smooth rolls of sheets barrel shape is formed on this groove front end and bottom, reduce the physical dimension at point of a knife and groove position, the least possible destruction and damage surrounding tissue in the time of can guaranteeing to shear blood vessel as far as possible.
Embodiment 6
As shown in Figure 5, with reference to embodiment 1, by contiguous as far as possible its point of a knife position of the groove of the similar circular arc on the first blade 5, a fusiform round and smooth hook shape is formed on this groove front end and bottom.Further reduce the physical dimension at point of a knife and groove position, while being conducive to shear vascular surgery, protection blood vessel surrounding tissue.
This utility model is sheared the Special surgical of blood vessel and is cut, and has the following advantages:
1, the Special surgical of applying this shearing blood vessel is cut safe and reliable.The interior ankle great saphenous vein of take is example: great saphenous vein outside before internal malleolus goes upward to shank, and in internal malleolus plan-position, table is shallow and constant, is the position of desirable venotomy.Great saphenous vein is apart from the about 1cm in internal malleolus leading edge most salient point, more constant apart from the about 1.5cm of tibialis anterior tendon and relation.Dorsal artery of foot the dark face of extensor retinaculum and apart from great saphenous vein more than 2.5cm, venotomy can not injure tremulous pulse.Saphenous nerve position is compared with the dark about 2mm of great saphenous vein, and otch after great saphenous vein is dissociated, can not injure saphenous nerve.Calf is shallow, and deep peroneal nerve is all in dorsal artery of foot outside.Therefore also all can not injure very safely this two nerve during incision of great saphenous vein.
Other important anatomy structure distance measurement results (mm) of table 1 great saphenous vein and interior ankle
So as long as vascular scissors tip thickness, width is enough little, and most advanced and sophisticated circle is blunt, places blood vessel shears groove antetheca, and lower wall thickness is enough little, just can not damage surrounding tissue.
2, the Special surgical of applying this shearings blood vessel in operation cut can accomplish fast, smart, accurate.In first aid, arteriovenous otch will be sought quickness, essence, standard.General operating scissors is difficult at short notice accurately otch, and designed vascular scissors can carry out otch to blood vessel with the fastest speed, simultaneously, because size incision has been set in 1/3～1/2 scope, can guarantee that size incision is accurate, there will not be the fortuitous event that cuts off blood vessel.
3, the material that the Special surgical of this shearing blood vessel is cut is identical with general operating scissors, can guarantee operation surrounding tissue not to be caused to chemistry injury.
4,, when shearing blood vessel, non-" V " shape otch that medical grade silicon rubber pad can guarantee to be cut blood vessel part is in addition without prejudice.
Claims (9)
1. a Special surgical of shearing blood vessel is cut, comprise that first cuts handle [2] and the first finger ring [1] and the first blade [6], second cuts handle [7] and the second finger ring [8] and the second blade [4], first cuts handle [2] and the first finger ring [1] and the first blade [6] for whole, second cuts handle [7] and the second finger ring [8] and the second blade [4] for whole, the two is hinged together by axle [3], it is characterized in that: on described the first blade [6], be designed with a slot opening [5], slot opening [5] axially with described the first blade [6] shape α that has angle, described the second blade [4] Length Ratio the first blade [6] is short, when the first blade [6] and the second blade [4] close up, the point of a knife of described the second blade [4] is positioned at slot opening 1/3～1/2 place on described the first blade [6].
2. the Special surgical of shearing according to claim 1 blood vessel is cut, it is characterized in that: the knife edge part of described the first blade [6] is designed to the plane without the wide cut of sword, in this wide cut plane, be provided with a slot opening [5], from this slot opening [5] 1/3～1/2, start, in the described wide cut plane of the first handle of a knife [2] direction, offer a deep trouth.
3. according to the Special surgical of shearing blood vessel described in claim 1 or 2, cut, it is characterized in that: in the groove on described the first blade, sky is controlled at 4～6mm.
4. according to the Special surgical of shearing blood vessel described in claim 1 or 2, cut, it is characterized in that: contiguous as far as possible its point of a knife position of the groove on described the first blade, a fusiform round and smooth rolls of sheets barrel shape is formed on this groove front end and bottom.
5. according to the Special surgical of shearing blood vessel described in claim 1 or 2, cut, it is characterized in that: contiguous as far as possible its point of a knife position of the groove on described the first blade, a fusiform round and smooth hook shape is formed on this groove front end and bottom.
6. the Special surgical of shearing according to claim 1 blood vessel is cut, it is characterized in that: the point of a knife end partial design of described the first blade [6] becomes the wide cut plane without sword, in this wide cut plane, be provided with a slot opening [5], from this slot opening [5] 1/3～1/2, start, in the described wide cut plane of the first handle of a knife [2] direction, offer a deep trouth.
7. the Special surgical of shearing blood vessel described in any one according to claim 1-6 is cut, it is characterized in that: slot opening [5] the inside on described the first blade [6] is provided with a medical grade silicon rubber packing ring, on this packing ring, offer breach, and this gap position is corresponding with the deep trouth in the first blade [6] wide cut plane.
8. the Special surgical of shearing according to claim 7 blood vessel is cut, and it is characterized in that: the axial angle α forming with the first blade [6] of described the first blade [6] upper groove opening [5] is 25～90 degree.
9. the Special surgical of shearing according to claim 8 blood vessel is cut, and it is characterized in that: the slot opening [5] on described the first blade [6] is shaped as similar circular-arc opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329607.XU CN203953752U (en) | 2014-06-19 | 2014-06-19 | A kind of Special surgical of shearing blood vessel is cut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329607.XU CN203953752U (en) | 2014-06-19 | 2014-06-19 | A kind of Special surgical of shearing blood vessel is cut |
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| Publication Number | Publication Date |
|---|---|
| CN203953752U true CN203953752U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420329607.XU Expired - Fee Related CN203953752U (en) | 2014-06-19 | 2014-06-19 | A kind of Special surgical of shearing blood vessel is cut |
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| CN (1) | CN203953752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000638A (en) * | 2014-06-19 | 2014-08-27 | 湖南中医药大学 | Surgical scissors special for cutting blood vessels |
-
2014
- 2014-06-19 CN CN201420329607.XU patent/CN203953752U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000638A (en) * | 2014-06-19 | 2014-08-27 | 湖南中医药大学 | Surgical scissors special for cutting blood vessels |
| CN104000638B (en) * | 2014-06-19 | 2017-03-22 | 湖南中医药大学 | Surgical scissors special for cutting blood vessels |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20150619 |
|
| EXPY | Termination of patent right or utility model |