CN210301084U - Multi-degree-of-freedom flexible transnasal cranial base surgical instrument - Google Patents
Multi-degree-of-freedom flexible transnasal cranial base surgical instrument Download PDFInfo
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- CN210301084U CN210301084U CN201920451226.1U CN201920451226U CN210301084U CN 210301084 U CN210301084 U CN 210301084U CN 201920451226 U CN201920451226 U CN 201920451226U CN 210301084 U CN210301084 U CN 210301084U
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- 210000001154 skull base Anatomy 0.000 title claims abstract description 20
- 238000005452 bending Methods 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 238000007688 edging Methods 0.000 claims abstract description 5
- 210000003128 head Anatomy 0.000 claims description 7
- 239000012781 shape memory material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000009966 trimming Methods 0.000 description 6
- 208000007913 Pituitary Neoplasms Diseases 0.000 description 5
- 206010028980 Neoplasm Diseases 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000010916 pituitary tumor Diseases 0.000 description 3
- 238000002271 resection Methods 0.000 description 3
- 210000003718 sphenoid sinus Anatomy 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000002674 endoscopic surgery Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 210000003928 nasal cavity Anatomy 0.000 description 2
- 230000001817 pituitary effect Effects 0.000 description 2
- 208000009798 Craniopharyngioma Diseases 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000001715 carotid artery Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001214 frontal sinus Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 206010027191 meningioma Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 210000001328 optic nerve Anatomy 0.000 description 1
- 210000003695 paranasal sinus Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 229920000431 shape-memory polymer Polymers 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model relates to a flexible intranasal basis cranii surgical instruments of multi freedom, executor including the distal end, the handle casing of near-end, executor control mechanism, bending control mechanism and rotary control mechanism, executor control handle through operation executor control mechanism rotates, it promotes the opening and shutting of distal end executor to drive push rod and flexible axle tractive, bending control trigger through operation bending control mechanism rotates, drive sliding sleeve and pull the wire holder back-and-forth movement, the tractive effect that produces through the tractive steel wire, it produces 0 ~ 90 crooked to the fluting side to drive the turn-control pipe, it is rotatory to take turns to rotary control through operation rotary control mechanism, it is rotatory to drive the swivelling joint pullover through the edging round pin, thereby drive the sleeve pipe, turn-control pipe and executor carry out 360 rotations. The utility model discloses can realize opening and shutting, rotatory and crooked simple and convenient operation control to the distal end executor, be favorable to realizing narrow and small space operation and use.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, especially relate to a flexible intranasal basis cranii surgical instruments of multi freedom.
Background
The nasal endoscope operation is one of minimally invasive surgical operations, does not need to make an incision on the surface of a human body, belongs to a Natural Orifice Endoscopic Surgery (NOTES), is initially applied to a nasal sinus operation, and gradually expands the indications to tumor operations of a plurality of areas of the skull base along with the improvement of the technology and the development of surgical instruments. Because of the characteristics of minimal invasion, safety, good curative effect and the like, the nasal endoscopic skull base operation is widely accepted, for example, the nasal pituitary tumor resection accounts for 70-90% of the total pituitary tumor resection, most types of pituitary tumors can be quickly and safely resected by the method, and a good treatment effect is achieved.
However, nasal endoscopic surgery does not necessarily allow complete resection for massive or invasive pituitary tumors, mainly for the following reasons: firstly, the nasal endoscope operation needs to enter from the nostrils, the narrow space in the nasal cavity greatly limits the movement of the instrument, and the instrument is easy to interfere with each other and block the visual field; secondly, because the pituitary is positioned behind the sphenoid sinus at the deepest part of the nasal cavity, the frontal sinus bone wall and partial sphenoid saddles of the sphenoid sinus can be opened to approach the operation target, and the newly opened operation road severely limits the movement of the instrument; thirdly, there are many important structures around the pituitary, such as the optic nerve crossing and carotid artery, which must be avoided during the operation, and when the pituitary tumor is covered by these structures, it is very challenging to use a straight instrument to excise the tumor around these critical structures; finally, the common rigid apparatus can only move back and forth along the operation road and is difficult to reach the corner position behind the sphenoid sinus, and the tumor tissue is difficult to be completely resected, which can cause the postoperative tumor to recur. For other intranasal endoscopic procedures, such as olfactory sulcus meningioma, craniopharyngioma, etc., the above problems, or even more so, are present despite slightly different target sites for the procedure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a flexible intranasal basis cranii surgical instruments of multi freedom is provided, realizes opening and shutting, rotatory and crooked simple and convenient operation control to the distal end executor, is favorable to realizing narrow and small space operation and use.
The technical scheme adopted by the utility model for solving the technical problems is to provide a multi-degree-of-freedom flexible transnasal skull base surgical instrument, which comprises a far-end actuator, a near-end handle shell, an actuator control mechanism, a bending control mechanism and a rotation control mechanism;
the actuator comprises a base and split fit type gripping tongs, and the split fit type gripping tongs are installed on the base through a pin shaft and controlled to rotate along the pin shaft through an actuator control mechanism to realize opening and closing;
the actuator control mechanism comprises a flexible shaft, a movable pin, a push rod and an actuator control handle, wherein guide grooves which are staggered with each other are respectively formed in two branches of the split fitting type gripping tongs;
the bending control mechanism comprises a bending control pipe, a drawing steel wire, a bending control trigger, a sliding sleeve, a connecting rod and a drawing steel wire seat, wherein the bending control pipe is made of a super-elastic shape memory material, a gap is formed in one side of the bending control pipe along the length direction, the far end of the bending control pipe is connected with a base, the sliding sleeve is arranged on a handle shell in a front-back sliding mode, the bending control trigger is rotatably connected to the handle shell, the bending control trigger is connected with the sliding sleeve through the connecting rod in a shaft coupling mode, the sliding sleeve is driven to slide back and forth through the rotation of the bending control trigger, the drawing steel wire seat can rotate relative to the sliding sleeve and is nested in the sliding sleeve in a front-back follow-up mode, the far end of the drawing steel wire is connected with;
the rotary control mechanism comprises a sleeve, a rotary connecting sleeve head, a trimming pin and a rotary control wheel, the rotary connecting sleeve head and the rotary control wheel are correspondingly and rotatably mounted on the handle shell in front and at back, the rotary control wheel is connected with the rotary connecting sleeve head through the trimming pin and can rotate in a follow-up manner, the far end of the sleeve is connected with the control elbow, and the near end of the sleeve is connected with the rotary connecting sleeve head.
The near end of the push rod is arranged to be a ball head, a cylindrical notch is formed in the actuator control handle, and the push rod is nested in the notch of the actuator control handle through the near end ball head and can slide up and down along the notch.
The rear part of the actuator control handle extends out of the near end of the handle shell, and the actuator control handle is connected with the handle shell through a rotating shaft structure and locks the rotation of the actuator control handle through a locking push handle.
The flexible shaft near end penetrates out of the inside of the control elbow, a through hole is formed in the edge cutting pin, and the push rod sequentially penetrates through the edge cutting pin, the rotary connecting sleeve head and the sleeve.
The traction steel wire sequentially penetrates through the sliding sleeve, the rotary connecting sleeve head, the sleeve and the control elbow.
The handle is characterized in that two sides of the sliding sleeve are respectively provided with a convex sliding block, the inside of the handle shell is correspondingly provided with a sliding groove, and the sliding sleeve can be assembled in the sliding groove of the handle shell in a front-back sliding mode through the sliding blocks.
The bending control trigger is in shaft connection with the front part of the handle shell through a rotating shaft structure, two sides of the bending control trigger are in shaft connection with one end of a connecting rod respectively, and the other end of the connecting rod is in shaft connection with the sliding sleeve.
The rotary connecting sleeve head, the rotary control wheel and the traction steel wire seat are respectively provided with an edge cutting hole, and the edge cutting pin is sequentially assembled in the rotary control wheel, the traction steel wire seat and the rotary connecting sleeve head to form a rotary linkage structure.
Be equipped with the bulge loop on the tractive steel wire seat, sliding sleeve's inside is equipped with the annular, the tractive steel wire seat passes through the bulge loop nestification in sliding sleeve's annular.
The split-fit type gripping tongs can also be split-fit type scissors or curettes.
Advantageous effects
First, the utility model discloses in, the executor control handle through operation executor control mechanism rotates, can open and shut and carry out effective control to opening of surgical instruments distal end executor, thereby just pushes away the handle through the locking and locks the purpose that reaches the locking executor state of opening and shutting to the rotation of executor control handle, and is easy and simple to handle.
Second, the utility model discloses in, the crooked control trigger through operation crooked control mechanism rotates, can produce the tractive effect to the tractive steel wire for the accuse return bend of surgical instruments distal end can produce 0 ~ 90 bendings, easy and simple to handle to the fluting side.
Third, the utility model discloses in, rotatory through the rotation control wheel of operation rotation control mechanism, the accuse return bend that can drive the surgical instruments distal end and executor produce 0 ~ 360 rotations, and is easy and simple to handle, can accomplish the operation of arbitrary direction, uses in a flexible way.
Fourth, the utility model discloses in, the accuse return bend adopts super bullet shape memory material to make, and concrete automatic reversion performance, accuse return bend have the interval notch along length direction unilateral opening, and this kind of continuum bending structure compares with the snake bone joint type bending structure who uses in the traditional apparatus, and simple structure cost is lower, and can make the bending structure more miniaturized, is favorable to realizing the utility model discloses use of operating in narrow and small space satisfies the needs of intranasal skull base operation.
Fifth, the utility model discloses in, through structural design and the rational arrangement of each control mechanism in the surgical instruments near-end operating handle, can follow the limited hand operation demand of doctor from the angle of human factors engineering, the medical personnel of being convenient for are to this surgical instruments's holding and operation.
Sixth, the utility model discloses in, to mutual independence between opening and shutting control, the bending control and the rotation control of apparatus distal end of executor, complementary interference can prevent effectively that it influences the operation to take place to twine between traction wire and the push rod.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is a schematic view of the structure of the proximal end of the bending control mechanism and the rotation control mechanism of the present invention.
Fig. 4 is a schematic view of an actuator according to an embodiment of the present invention.
Fig. 5 is a schematic view of a distal end structure of the actuator control mechanism of the present invention.
Fig. 6 is a schematic structural view of the pipe bending control pipe of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The flexible transnasal cranial base surgical instrument with multiple degrees of freedom shown in fig. 1 and 2 comprises a distal end actuator 1, a proximal end handle shell 2, an actuator control mechanism, a bending control mechanism and a rotation control mechanism.
As shown in fig. 4, the actuator 1 includes a base 1-1 and a split-fit type grasper 1-2. The split fitting type gripping tongs 1-2 are arranged on the base 1-1 through a pin shaft 1-3, the pin shaft 1-3 is positioned in the middle of the split fitting type gripping tongs 1-2, and the rear part of the split fitting type gripping tongs 1-2 is controlled by an actuator control mechanism to rotate along the pin shaft 1-3 to realize opening and closing. The split-fit type grasping forceps 1-2 can also be split-fit type scissors or curettes to realize other operation operations.
As shown in fig. 2 and 5, the actuator control mechanism includes a flexible shaft 3, a movable pin 4, a rigid push rod 5 and an actuator control handle 6. The two branches of the split mating type gripping tongs 1-2 are respectively provided with guide grooves 1-2-1 which are staggered with each other, and the movable pin 4 is arranged in the guide grooves 1-2-1 of the two branches of the split mating type gripping tongs 1-2. The far end of the flexible shaft 3 is vertically connected with the movable pin 4, the far end of the push rod 5 is connected with the near end of the flexible shaft 3, and the near end of the push rod 5 is connected with the actuator control handle 6. The near end of the push rod 5 is arranged to be a ball head, a cylindrical notch 6-1 is vertically formed in the actuator control handle 6, and the push rod 5 is nested in the notch 6-1 of the actuator control handle 6 through the near end ball head and can slide up and down along the notch 6-1. The rear part of the actuator control handle 6 extends out of the near end of the handle shell 2, the middle part of the actuator control handle 6 is provided with a shaft hole, the shaft hole is connected with the handle shell 2 through a pin shaft structure to form a revolute pair, the revolute pair and the ball head push rod 5 form a sliding block and swing rod mechanism together, and the actuator control handle 6 is controlled to rotate to pull the movable pin 4 to move so as to control the split-fit type graspers 1-2 to open and close. The upper part of the handle shell 2 is provided with a locking push handle 16, the locking push handle 16 can be matched with the actuator control handle 6 to lock the rotation of the actuator control handle 6, thereby achieving the purpose of locking the opening and closing state of the actuator 1.
As shown in FIG. 3, the bend control mechanism includes a control bend 7, a pull wire (not shown), a bend control trigger 8, a slide sleeve 9, a link 10, and a pull wire seat 11. As shown in fig. 6, the bend control pipe 7 is made of superelastic shape memory alloy or shape memory polymer, preferably a nickel-titanium alloy pipe with a wall thickness of 0.1mm, and is provided with a separation notch along one side of the length direction, so that when the bend control pipe is subjected to a pulling force, the bend control pipe can bend 0-90 degrees towards one side of the notch, and can restore to the original shape under the action of self elasticity after external force is removed due to asymmetry of two sides of the bend control pipe. The distal end of the control elbow 7 is connected to the base 1-1 and the proximal end is connected to the cannula 12. The near end of the flexible shaft 3 penetrates out of the inside of the control bend pipe 7 and is connected with the push rod 5 inside the sleeve 12, and the flexible shaft 3 arranged inside the control bend pipe 7 can bend along with the control bend pipe 7, so that the influence on bending control is avoided. Two sides of the sliding sleeve 9 are respectively provided with two convex sliding blocks 9-1, the interior of the handle shell 2 is correspondingly provided with four sliding grooves 2-1, and the sliding sleeve 9 can be assembled in the sliding grooves 2-1 of the handle shell 2 in a front-back sliding manner through the sliding blocks 9-1. The bending control trigger 8 is coupled to the front portion of the handle housing 2 through a rotating shaft structure, both sides of the bending control trigger 8 are coupled to one end of a connecting rod 10, respectively, and the other end of the connecting rod 10 is coupled to the sliding sleeve 9, so that the rotational motion of the bending control trigger 8 is converted into the linear motion of the sliding sleeve 9. The drawing steel wire seat 11 is provided with a convex ring, the inner wall of the rear part of the sliding sleeve 9 is provided with a ring groove, and the drawing steel wire seat 11 is nested in the ring groove of the sliding sleeve 9 through the convex ring, can rotate relative to the sliding sleeve 9 and can follow the sliding sleeve 9 in the front-rear direction. The far end of the traction steel wire is connected with the base 1-1, the near end of the traction steel wire is connected with the traction steel wire seat 11, the traction steel wire sequentially penetrates through the sliding sleeve 9, the rotary connecting sleeve head 13, the sleeve 12 and the controlled bent pipe 7, the traction steel wire seat 11 is driven to move back and forth by controlling the rotation of the bending control trigger 8, and therefore the actuator 1 at the far end of the traction steel wire is used for pressing the controlled bent pipe 7 to bend.
As shown in fig. 3, the rotation control mechanism includes a sleeve 12, a rotary connection socket 13, a chamfered pin 14, and a rotation control wheel 15. The rotary connecting sleeve head 13 is provided with a ring groove and is sleeved at the far end of the handle shell 2 through the ring groove, the rotary control wheel 15 is rotatably arranged on the handle shell 2, and the rotary control wheel 15, the sliding sleeve 9 and the rotary connecting sleeve head 13 are sequentially arranged and correspond to each other in the front-back direction. The rotary connecting sleeve head 13, the rotary control wheel 15 and the drawing steel wire seat 11 are respectively provided with a trimming hole, the trimming pin 14 is sequentially assembled in the rotary control wheel 15, the drawing steel wire seat 11 and the rotary connecting sleeve head 13 to form a rotary linkage structure, and the trimming pin 14 penetrates through the sliding sleeve 9 and can rotate relative to the sliding sleeve 9. The distal end of the sleeve 12 is connected to the control elbow 7 and the proximal end is connected to the swivel connection hub 13. The inside of the edging pin 14 is provided with a through hole, and the push rod 5 sequentially passes through the edging pin 14, the rotary connecting sleeve head 13 and the sleeve 12 to be connected with the flexible shaft 3. By rotating the rotary control wheel 15, the rotary connecting sleeve head 13 is driven to rotate through the chamfered edge pin 14, so that the sleeve 12, the control bend pipe 7 and the actuator 1 are driven to rotate for 360 degrees. Meanwhile, the trimming pin 14 can drive the traction steel wire seat 11 to rotate, the position of the traction steel wire can be adjusted, the traction steel wire is prevented from being wound with the push rod 5 or the flexible shaft 3, the sliding sleeve 9 is not affected, and the interference on bending control is avoided.
This flexible intranasal basis of cranii surgical instruments distal end bending structure of multi freedom can accomplish more miniaturization, and accuse return bend 7 can reach minimum diameter 1.5 mm's design, can operate in narrow and small space and use, satisfies the needs of intranasal basis of cranium operation. In addition, through the structural design and the reasonable layout of each control mechanism in the operation handle at the near end of the surgical instrument, the limited hand operation requirements of doctors can be met from the perspective of human factors engineering, and the medical care personnel can hold and operate the surgical instrument conveniently.
Claims (10)
1. The utility model provides a flexible intranasal basis cranii surgical instruments of multi freedom, includes executor (1) of distal end, handle casing (2) of near-end, executor control mechanism, crooked control mechanism and rotation control mechanism, its characterized in that:
the actuator (1) comprises a base (1-1) and split matched type gripping tongs (1-2), wherein the split matched type gripping tongs (1-2) are installed on the base (1-1) through a pin shaft (1-3) and controlled to rotate along the pin shaft (1-3) through an actuator control mechanism to realize opening and closing;
the actuator control mechanism comprises a flexible shaft (3), a movable pin (4), a push rod (5) and an actuator control handle (6), guide grooves (1-2-1) which are staggered with each other are formed in two branches of the split fit type grasper (1-2) respectively, the movable pin (4) is arranged in the guide grooves (1-2-1) of the two branches of the split fit type grasper (1-2), the far end of the flexible shaft (3) is vertically connected with the movable pin (4), the far end of the push rod (5) is connected with the flexible shaft (3), the near end of the push rod is connected with the actuator control handle (6), the actuator control handle (6) is rotatably connected to the handle shell (2) and rotationally pulls the movable pin (4) to move and control the split fit type grasper (1-2) to be opened and closed through the actuator control handle (6);
the bending control mechanism comprises a bending control pipe (7), a traction steel wire, a bending control trigger (8), a sliding sleeve (9), a connecting rod (10) and a traction steel wire seat (11), the bending control pipe (7) is made of a superelastic shape memory material and is provided with a separation notch along one side of the length direction, the far end of the bending control pipe (7) is connected with a base (1-1), the sliding sleeve (9) is arranged on a handle shell (2) in a front-back sliding manner, the bending control trigger (8) is rotatably connected on the handle shell (2), the bending control trigger (8) and the sliding sleeve (9) are coupled through the connecting rod (10) and drive the sliding sleeve (9) to slide back and forth through the rotation of the bending control trigger (8), the traction steel wire seat (11) can rotate relative to the sliding sleeve (9) and is nested in the sliding sleeve (9) in a front-back follow-up manner, the far end of the traction steel wire is connected with the base (1-1), and the near end of the traction steel wire is connected with the traction steel wire seat (11);
rotatory control mechanism includes sleeve pipe (12), swivelling joint pullover (13), edging round pin (14) and swivelling control wheel (15), swivelling joint pullover (13) and swivelling control wheel (15) front and back correspond rotatably to install on handle casing (2), connect through edging round pin (14) and can follow-up rotation between swivelling control wheel (15) and swivelling joint pullover (13), the distal end and the accuse return bend (7) of sleeve pipe (12) are connected, the near-end is connected with swivelling joint pullover (13).
2. The flexible transnasal cranial base surgical instrument of claim 1, wherein: the near end of the push rod (5) is arranged to be a ball head, a cylindrical notch (6-1) is formed in the actuator control handle (6), and the push rod (5) is nested in the notch (6-1) of the actuator control handle (6) through the near end ball head and can slide up and down along the notch (6-1).
3. The flexible transnasal cranial base surgical instrument of claim 1, wherein: the rear part of the actuator control handle (6) extends out of the near end of the handle shell (2), and the actuator control handle (6) is connected with the handle shell (2) through a rotating shaft structure and locks the rotation of the actuator control handle (6) through a locking push handle (16).
4. The flexible transnasal cranial base surgical instrument of claim 1, wherein: the near end of the flexible shaft (3) penetrates out of the inside of the control elbow pipe (7), a through hole is formed in the edge cutting pin (14), and the push rod (5) penetrates through the edge cutting pin (14), the rotary connecting sleeve head (13) and the sleeve (12) in sequence.
5. The flexible transnasal cranial base surgical instrument of claim 1, wherein: the traction steel wire sequentially penetrates through the sliding sleeve (9), the rotary connecting sleeve head (13), the sleeve (12) and the control elbow (7).
6. The flexible transnasal cranial base surgical instrument of claim 1, wherein: the handle is characterized in that two sides of the sliding sleeve (9) are respectively provided with a convex sliding block (9-1), the inside of the handle shell (2) is correspondingly provided with a sliding groove (2-1), and the sliding sleeve (9) can be assembled in the sliding groove (2-1) of the handle shell (2) in a front-back sliding mode through the sliding block (9-1).
7. The flexible transnasal cranial base surgical instrument of claim 1, wherein: the bending control trigger (8) is in shaft connection with the front part of the handle shell (2) through a rotating shaft structure, two sides of the bending control trigger (8) are in shaft connection with one end of a connecting rod (10) respectively, and the other end of the connecting rod (10) is in shaft connection with a sliding sleeve (9).
8. The flexible transnasal cranial base surgical instrument of claim 1, wherein: the rotary connecting sleeve head (13), the rotary control wheel (15) and the drawing steel wire seat (11) are respectively provided with an edge cutting hole, and the edge cutting pin (14) is sequentially assembled in the rotary control wheel (15), the drawing steel wire seat (11) and the rotary connecting sleeve head (13) to form a rotary linkage structure.
9. The flexible transnasal cranial base surgical instrument of claim 1, wherein: be equipped with the bulge loop on tractive wire seat (11), the inside of sliding sleeve (9) is equipped with the annular, tractive wire seat (11) are through the bulge loop nestification in the annular of sliding sleeve (9).
10. The flexible transnasal cranial base surgical instrument of claim 1, wherein: the split-fit type grasping forceps (1-2) can also be split-fit type scissors or curettes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920451226.1U CN210301084U (en) | 2019-04-04 | 2019-04-04 | Multi-degree-of-freedom flexible transnasal cranial base surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920451226.1U CN210301084U (en) | 2019-04-04 | 2019-04-04 | Multi-degree-of-freedom flexible transnasal cranial base surgical instrument |
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| Publication Number | Publication Date |
|---|---|
| CN210301084U true CN210301084U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920451226.1U Withdrawn - After Issue CN210301084U (en) | 2019-04-04 | 2019-04-04 | Multi-degree-of-freedom flexible transnasal cranial base surgical instrument |
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| Country | Link |
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| CN (1) | CN210301084U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037755A (en) * | 2019-04-04 | 2019-07-23 | 上海世恒医学科技有限公司 | Multiple degrees of freedom flexible intranasal skull base surgery instrument |
| CN110037755B (en) * | 2019-04-04 | 2024-07-09 | 上海世恒医学科技有限公司 | Multi-freedom-degree flexible nasal skull base surgical instrument |
-
2019
- 2019-04-04 CN CN201920451226.1U patent/CN210301084U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037755A (en) * | 2019-04-04 | 2019-07-23 | 上海世恒医学科技有限公司 | Multiple degrees of freedom flexible intranasal skull base surgery instrument |
| CN110037755B (en) * | 2019-04-04 | 2024-07-09 | 上海世恒医学科技有限公司 | Multi-freedom-degree flexible nasal skull base surgical instrument |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200414 Effective date of abandoning: 20240709 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200414 Effective date of abandoning: 20240709 |