CN111956278B - Tissue traction device for assisting endoscope treatment - Google Patents
Tissue traction device for assisting endoscope treatment Download PDFInfo
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- CN111956278B CN111956278B CN202010830112.5A CN202010830112A CN111956278B CN 111956278 B CN111956278 B CN 111956278B CN 202010830112 A CN202010830112 A CN 202010830112A CN 111956278 B CN111956278 B CN 111956278B
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- traction device
- adjusting
- tube
- pipe
- pusher
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
Abstract
The invention discloses a tissue traction device for assisting endoscope treatment; comprises a traction device and a pusher; the traction device is arranged on the lower side of the pusher; the pusher comprises a handle, a circular tube, an adjusting tube, a connecting tube, a middle tube and a front end needle; the handle, the round pipe, the adjusting pipe, the connecting pipe, the middle pipe and the front end needle are sequentially connected end to end; the circumferential surface of the adjusting pipe is provided with an adjuster; through holes are formed in the circular pipe, the adjusting pipe, the connecting pipe and the middle pipe, and metal wires are arranged in the middle of the through holes; the lower end of the metal wire is provided with a connecting wire; the connecting wire is connected with the traction device. The plurality of traction devices are arranged on the pusher, so that the traction devices can be conveyed at one time, the operation frequency in the operation is reduced, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a tissue traction device for assisting endoscope treatment.
Background
In recent years, with the rapid development of endoscopic treatment technologies, many new endoscopic treatment technologies have come into use, such as endoscopic mucosal dissection, endoscopic tumor resection, endoscopic full-thickness resection, oral endoscopic myotomy, and natural transluminal endoscopic surgery. Due to the structural limitation of the instruments of the endoscope, the tissue traction can not be carried out under the endoscope, thereby bringing a plurality of difficulties and obstacles to the treatment under the endoscope. At present, technologies such as dental floss traction and the like are mainly applied clinically for auxiliary treatment, but the traction technology has many limitations and is relatively complex to implement, and the clinical requirements cannot be met.
In the prior art, chinese patent application No. 201910157399.7 discloses a tissue traction device for assisting endoscopic therapy, which is a dumbbell-shaped structure body with O-rings at two ends and an intermediate connecting line; the pusher comprises a thin tube, wherein the front end of the thin tube is connected with a front end needle, the rear end of the thin tube is connected with a holding rod, two tube cavities are axially formed from the rear end surface of the front end needle to the inner direction, the front end of each tube cavity is communicated with the circumferential surface of the front end needle to form a through hole, a handle and the holding rod are movably connected in a relative displacement mode, two metal wires are threaded in the tube cavities of the front end needle, the front end of each tube cavity is exposed out of the circumferential surface of the front end needle, O-shaped ring holes at the two ends of the tissue traction device are respectively clamped on the front end of each metal wire, and the rear end.
However, in the use process of the technology, only one tissue traction device can be conveyed at one time, and a plurality of tissue traction devices are needed in the operation process, so that the operation needs to be frequently performed for many times, the operation efficiency is low, and the operation process is complicated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a tissue traction device for assisting endoscope treatment, which can convey a plurality of traction devices at one time by arranging a plurality of traction devices on a pusher, thereby reducing the operation frequency in an operation and improving the working efficiency.
The invention provides the following technical scheme:
a tissue traction device for assisting endoscopic treatment; comprises a traction device and a pusher; the traction device is arranged on the lower side of the pusher; the pusher comprises a handle, a circular tube, an adjusting tube, a connecting tube, a middle tube and a front end needle; the handle, the round pipe, the adjusting pipe, the connecting pipe, the middle pipe and the front end needle are sequentially connected end to end; the circumferential surface of the adjusting pipe is provided with an adjuster; through holes are formed in the circular pipe, the adjusting pipe, the connecting pipe and the middle pipe, and metal wires are arranged in the middle of the through holes; the lower end of the metal wire is provided with a connecting wire; the connecting wire is connected with the traction device.
Preferably, an elastic layer is arranged in the middle of the adjusting pipe, and a through hole is formed in the middle of the elastic layer; the metal wire penetrates through the through hole in the elastic layer.
Preferably, the adjusting pipe is provided with a plurality of adjusting buckles; the adjusting pipe is provided with a round hole; the adjusting buckle is positioned at the round hole.
Preferably, the cross section of the adjusting buckle is approximately elliptical, and one end of the adjusting buckle is located on the outer side of the adjusting pipe.
Preferably, two cavities, namely a first cavity and a second cavity, are arranged on the inner side of the front end needle; the cavity is connected with the through hole, and the metal wires are arranged in the cavity.
Preferably, the handle is of a cylindrical structure, and a groove is formed in the lower side of the handle.
Preferably, the upper side of the middle pipe is provided with an external thread, and the lower side of the middle pipe is provided with an internal thread.
Preferably, the regulator is provided with a chute; the sliding groove is arranged corresponding to the adjusting buckle; the cross section of the sliding chute is of a circular structure.
Preferably, the metal wire is an inverted Y-shaped structure, the connecting wire is arranged on the side of the metal wire, and the length of the connecting wire on the metal wire is sequentially increased from bottom to top.
Preferably, a fixing ring is arranged at the inlet of the through hole on the circular tube.
Preferably, the tail part of the connecting wire is provided with a hook.
Preferably, the traction device is one of medical silicon rubber, a polytetrafluoroethylene film, a polyurethane film or a polyamide film, and the front-end needle is made of polyethylene material.
Preferably, in order to enable the traction device to smoothly reach the lesion site, the following relationship is satisfied among the length difference d between the adjacent connecting wires, the included angle θ and the arc length radius R corresponding to the arc line of the adjusting buckle positioned on the inner side of the adjusting pipe, the distance L1 from the top point of the arc line of the adjusting buckle positioned on the outer side of the adjusting pipe to the adjusting buckle, and the groove depth L2 between the sliding grooves:
d=MθR (L1-L2)；
wherein the units of d, R, L1 and L2 are mm; the unit of theta is rad, M is a constant, and the value range is 0.5-0.8.
An-An-1=α·1/2n；
In the formula: An-An-1The distance between the nth regulating button and the n-1 regulating buttons is in mm; α is a correlation coefficient: the value range is 11.1-13.0.
Preferably, in order to improve the working efficiency and reduce the times of conveying the traction device in the operation, the invention discloses a method for conveying a tissue traction device for assisting endoscopic treatment, which comprises the following steps:
s1, inserting the two metal wires into the cavities at the two sides of the front end needle respectively, bonding the two metal wires together at the upper end of the cavity, and removing one metal wire to form an inverted Y-shaped structure;
s2, inserting a metal wire into the through holes of the intermediate pipe, the connecting pipe, the adjusting pipe and the round pipe in sequence, and fixing one end of the metal wire with the round pipe;
s3, winding the traction device on the surface of the front end needle, and fixing the traction device by using the connecting wire to act on round holes at the two ends of the traction device;
and S4, the traction device is sent to the position near the focus of the endoscopic surgery by using the pusher, the adjuster is moved, and the traction device is released in sequence to finish the transportation of the traction device.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the tissue traction device for assisting endoscope treatment, the purpose of conveying a plurality of traction devices at one time can be achieved by arranging the plurality of adjusting buckles, the operation process is simplified, and the working efficiency is improved.
(2) According to the tissue traction device for assisting endoscope treatment, the purpose of adjusting the length of the pusher according to actual needs can be realized by arranging the middle tube, and diversified requirements in the operation process are met.
(3) The tissue traction device for assisting endoscope treatment is convenient to operate and simple to use due to the arrangement of the regulator.
(4) The tissue traction device for assisting endoscope treatment can enable the adjusting buckle to be smoothly conveyed to a focus area by limiting the length difference d between adjacent connecting wires, the included angle theta and the arc length radius R corresponding to the arc line of the adjusting buckle positioned on the inner side of the adjusting pipe, the distance L1 between the top point of the arc line of the adjusting buckle positioned on the outer side of the adjusting pipe and the adjusting buckle and the groove depth L2 between the sliding grooves.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
Fig. 3 is an enlarged view of a portion of fig. 2 of the present invention.
Fig. 4 is an enlarged view of a portion of fig. 2 of the present invention.
Fig. 5 is a schematic view of the regulator tube of the present invention.
Fig. 6 is a schematic view of the traction device of the present invention.
Fig. 7 is a schematic view of a wire of the present invention.
In the figure: 1. a handle; 2. a circular tube; 3. an adjusting tube; 4. a regulator; 5. an intermediate pipe; 6. a front end needle; 7. a traction device; 8. adjusting buckles; 9. a through hole; 10. a metal wire; 11. a first cavity; 12. connecting wires; 13. a chute; 14. a connecting pipe; 15. an elastic layer; 16. a circular hole; 17. a second cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
1-7, a tissue traction device for assisting endoscopic treatment; comprises a traction device 7 and a pusher; the traction device 7 is arranged on the lower side of the pusher; the pusher comprises a handle 1, a circular tube 2, an adjusting tube 3, a connecting tube 14, a middle tube 5 and a front end needle 6; the handle 1, the round tube 2, the adjusting tube 3, the connecting tube 14, the middle tube 5 and the front end needle 6 are sequentially connected end to end; the circumferential surface of the adjusting pipe 3 is provided with an adjuster 4; through holes 9 are formed in the middle of the circular tube 2, the adjusting tube 3, the connecting tube 14 and the middle tube 5, and metal wires 10 are arranged in the middle of the through holes 9; the lower end of the metal wire 10 is provided with a connecting wire 12; the connecting wire 12 is connected with the traction device 7.
An elastic layer 15 is arranged in the middle of the adjusting pipe 3, the elastic layer 15 is a sponge layer, the elastic layer 15 plays a role in protecting the metal wire 10, and a through hole 9 is arranged in the middle of the elastic layer 15; the metal wire 10 penetrates through the through hole 9 in the elastic layer 15, the metal wire 10 is a medical stainless metal wire, and the metal wire has certain elasticity.
The adjusting pipe 3 is provided with a plurality of adjusting buckles 8; the adjusting pipe 3 is provided with a round hole 16; the adjusting buckle 8 is positioned at the round hole 16. The cross section of the adjusting buckle 8 is approximately elliptical, and one end of the adjusting buckle 8 is positioned on the outer side of the adjusting pipe 3.
Two cavities, namely a first cavity 11 and a second cavity 17, are arranged on the inner side of the front end needle 6; the cavities 17 are all connected with the through holes 9, and metal wires 10 are arranged in the cavities.
The handle 1 is of a cylindrical structure, a groove is formed in the lower side of the handle 1, and the groove is convenient for operation of the device.
The upper side of the middle tube 5 is provided with an external thread, the lower side of the middle tube 5 is provided with an internal thread, the middle tube 5 is connected with the connecting tube 14 and the front end needle 6 in a threaded connection mode, whether the middle tube 5 is used or not is determined according to actual needs, the middle tube 5 is used for adjusting the length of the device, and diversified needs in the operation process are met.
The regulator 4 is provided with a chute 13; the sliding groove 13 is arranged corresponding to the adjusting buckle 8; the cross section of the sliding groove 13 is of a circular structure, when the regulator 4 is moved, the sliding groove 13 plays a limiting role, and meanwhile, the regulator 4 can be guaranteed to act on the regulating buckle 8 better.
The metal wire 10 is an inverted Y-shaped structure, the connecting wire is arranged on the side of the metal wire, and the length of the connecting wire 12 on the metal wire 10 is increased from bottom to top in sequence. The inlet of the through hole 9 on the circular tube 2 is provided with a fixing ring which is used for fixing the metal wire 10. The tail part of the connecting wire 12 is provided with a hook. The traction device 7 is one of medical silicon rubber, a polytetrafluoroethylene film, a polyurethane film or a polyamide film, and the front-end needle 6 is made of polyethylene material.
The working principle is as follows: in the working process of the device, a traction device 7 is wound on the surface of a front-end needle 6, the traction device is fixed by utilizing round holes at two ends of the traction device acted by a connecting wire, the traction device is conveyed to a focus area, a regulator 4 is moved, the regulator 4 acts on a regulating buckle 8, the regulating buckle 8 acts on a metal wire 10, the metal wire 10 is bent, the connecting wire 12 contracts, the traction device 7 is released, the conveying purpose of the traction device 7 is completed, in the releasing process, the length of the connecting wire 12 is unequal, the length of the connecting wire 12 is sequentially increased from bottom to top, therefore, when the regulator 4 acts on a first regulating buckle 8, the lowest traction device 7 is released, when the regulator 4 acts on a second regulating buckle 8, the second traction device 7 is released, and the operation is sequentially carried out.
Example two:
a tissue traction device for assisting endoscopic treatment; comprises a traction device 7 and a pusher; the traction device 7 is arranged on the lower side of the pusher; the pusher comprises a handle 1, a circular tube 2, an adjusting tube 3, a connecting tube 14, a middle tube 5 and a front end needle 6; the handle 1, the round tube 2, the adjusting tube 3, the connecting tube 14, the middle tube 5 and the front end needle 6 are sequentially connected end to end; the circumferential surface of the adjusting pipe 3 is provided with an adjuster 4; through holes 9 are formed in the middle of the circular tube 2, the adjusting tube 3, the connecting tube 14 and the middle tube 5, and metal wires 10 are arranged in the middle of the through holes 9; the lower end of the metal wire 10 is provided with a connecting wire 12; the connecting wire 12 is connected with the traction device 7.
An elastic layer 15 is arranged in the middle of the adjusting pipe 3, the elastic layer 15 is a sponge layer, the elastic layer 15 plays a role in protecting the metal wire 10, and a through hole 9 is arranged in the middle of the elastic layer 15; the metal wire 10 penetrates through the through hole 9 in the elastic layer 15, the metal wire 10 is a medical stainless metal wire, and the metal wire has certain elasticity.
The adjusting pipe 3 is provided with a plurality of adjusting buckles 8; the adjusting pipe 3 is provided with a round hole 16; the adjusting buckle 8 is positioned at the round hole 16. The cross section of the adjusting buckle 8 is approximately elliptical, and one end of the adjusting buckle 8 is positioned on the outer side of the adjusting pipe 3.
Two cavities, namely a first cavity 11 and a second cavity 17, are arranged on the inner side of the front end needle 6; the cavities 17 are all connected with the through holes 9, and metal wires 10 are arranged in the cavities.
The handle 1 is of a cylindrical structure, a groove is formed in the lower side of the handle 1, and the groove is convenient for operation of the device.
The upper side of the middle tube 5 is provided with an external thread, the lower side of the middle tube 5 is provided with an internal thread, the middle tube 5 is connected with the connecting tube 14 and the front end needle 6 in a threaded connection mode, whether the middle tube 5 is used or not is determined according to actual needs, the middle tube 5 is used for adjusting the length of the device, and diversified needs in the operation process are met.
The regulator 4 is provided with a chute 13; the sliding groove 13 is arranged corresponding to the adjusting buckle 8; the cross section of the sliding groove 13 is of a circular structure, when the regulator 4 is moved, the sliding groove 13 plays a limiting role, and meanwhile, the regulator 4 can be guaranteed to act on the regulating buckle 8 better.
The metal wire 10 is an inverted Y-shaped structure, the connecting wire is arranged on the side of the metal wire, and the length of the connecting wire 12 on the metal wire 10 is increased from bottom to top in sequence. The inlet of the through hole 9 on the circular tube 2 is provided with a fixing ring which is used for fixing the metal wire 10. The tail part of the connecting wire 12 is provided with a hook. The traction device 7 is one of medical silicon rubber, a polytetrafluoroethylene film, a polyurethane film or a polyamide film, and the front-end needle 6 is made of polyethylene material.
In order to enable the traction device to smoothly reach the focus position, the length difference d between the adjacent connecting wires, the included angle theta and the arc length radius R corresponding to the arc line of the adjusting buckle positioned on the inner side of the adjusting pipe, the distance L1 between the top point of the arc line of the adjusting buckle positioned on the outer side of the adjusting pipe and the adjusting buckle and the groove depth L2 between the sliding grooves satisfy the following relations:
d=MθR (L1-L2)；
wherein the units of d, R, L1 and L2 are mm; the unit of theta is rad, M is a constant, and the value range is 0.5-0.8.
An-An-1=α·1/2n；
In the formula: An-An-1The distance between the nth regulating button and the n-1 regulating buttonsDistance, in mm; α is a correlation coefficient: the value range is 11.1-13.0.
When the relation is satisfied, the traction device can smoothly reach the focus position.
Example three:
in order to improve the working efficiency and reduce the times of conveying the traction device in the operation, the invention discloses a conveying method of a tissue traction device for assisting endoscope treatment, which comprises the following steps:
s1, inserting the two metal wires into the cavities at the two sides of the front end needle respectively, bonding the two metal wires together at the upper end of the cavity, and removing one metal wire to form an inverted Y-shaped structure;
s2, inserting a metal wire into the through holes of the intermediate pipe, the connecting pipe, the adjusting pipe and the round pipe in sequence, and fixing one end of the metal wire with the round pipe;
s3, winding the traction device on the surface of the front end needle, and fixing the traction device by using the connecting wire to act on round holes at the two ends of the traction device;
and S4, the traction device is sent to the position near the focus of the endoscopic surgery by using the pusher, the adjuster is moved, and the traction device is released in sequence to finish the transportation of the traction device.
Example four:
with reference to example two, An-A when M is 0.5, θ is 0.7 π, R is 5mm, L1 is 5mm, L2 is 2mm, d is 3.297mm, and α is 11.1n-1The distance between the 2 nd adjustment button and the 1 st adjustment button, An-An-1The value is 5.55, and the release of the traction device is completed when the regulating button moves 1/2L 1.
Example five:
with reference to example two, An-A when M is 0.7, θ is 0.7 π, R is 5mm, L1 is 5mm, L2 is 2mm, d is 4.616mm, α is 11.1n-1The distance between the 2 nd adjustment button and the 1 st adjustment button, An-An-1The value is 5.55, and the release of the traction device is completed when the regulating button moves 2/3L 1.
Example six:
with reference to example two, when M is 0.8, θ is 0.7 π, R is 5mm, and L1 is 5mmWhen L2 is 2mm, d is 5.275mm, and alpha is 11.1, An-An-1The distance between the 2 nd adjustment button and the 1 st adjustment button, An-An-1The value is 5.55, and the release of the traction device is completed when the adjusting buckle moves L1.
The device obtained by the technical scheme is a tissue traction device for assisting endoscope treatment, and the plurality of traction devices 7 can be conveyed at one time by arranging the plurality of traction devices 7 on the pusher, so that the operation frequency in an operation is reduced, and the work efficiency is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in 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 (4)
1. A tissue traction device for assisting endoscopic treatment; comprises a traction device (7) and a pusher; the device is characterized in that the traction device (7) is arranged at the lower side of the pusher; the pusher comprises a handle (1), a round tube (2), an adjusting tube (3), a connecting tube (14), a middle tube (5) and a front end needle (6); the handle (1), the round tube (2), the adjusting tube (3), the connecting tube (14), the middle tube (5) and the front end needle (6) are sequentially connected end to end; the circumferential surface of the adjusting pipe (3) is provided with an adjuster (4); through holes (9) are formed in the middle of the round pipe (2), the adjusting pipe (3), the connecting pipe (14) and the middle pipe (5), and a metal wire (10) is arranged in the middle of each through hole (9); the lower end of the metal wire (10) is provided with a connecting wire (12); the connecting wire (12) is connected with the traction device (7); an elastic layer (15) is arranged in the middle of the adjusting pipe (3), and a through hole (9) is formed in the middle of the elastic layer (15); the metal wire (10) penetrates through the through hole (9) in the elastic layer (15); the adjusting pipe (3) is provided with a plurality of adjusting buttons (8); the adjusting pipe (3) is provided with a round hole (16); the adjusting buckle (8) is positioned at the round hole (16); the cross section of the adjusting buckle (8) is approximately elliptical, and one end of the adjusting buckle (8) is located on the outer side of the adjusting pipe (3).
2. A tissue traction device for endoscopic assisted therapy according to claim 1, characterized in that said front needle (6) is provided inside with two cavities, a first cavity (11) and a second cavity (17); the cavities are all connected with the through holes (9), and metal wires (10) are arranged in the cavities.
3. A tissue traction device for an endoscopic assisted surgery according to claim 1, characterized in that the handle (1) has a cylindrical structure, and the lower side of the handle (1) is provided with a groove.
4. Tissue traction device for endoscopic assisted treatment according to claim 1, characterized in that the upper side of the intermediate tube (5) is provided with external threads and the lower side of the intermediate tube (5) is provided with internal threads.
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| CN202010830112.5A CN111956278B (en) | 2020-08-18 | 2020-08-18 | Tissue traction device for assisting endoscope treatment |
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| CN111956278B true CN111956278B (en) | 2021-06-22 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207928346U (en) * | 2017-03-31 | 2018-10-02 | 张明亮 | A kind of split type combination operation retractor device |
| CN208287033U (en) * | 2017-07-25 | 2018-12-28 | 武汉市中西医结合医院（武汉市第一医院） | A kind of device for endoscopic thyroid surgery special drag hook |
| CN109662743A (en) * | 2019-03-02 | 2019-04-23 | 江苏瑞上医疗器械有限公司 | A kind of tissue retraction device of endoscope treatment |
| CN209137521U (en) * | 2018-11-07 | 2019-07-23 | 新乡市中心医院(新乡中原医院管理中心) | A kind of Medical suction unit preventing clogging up device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074626U (en) * | 1990-08-31 | 1991-04-10 | 中国人民解放军第一四八医院 | Automatic hook for prostate gland |
| US6068630A (en) * | 1997-01-02 | 2000-05-30 | St. Francis Medical Technologies, Inc. | Spine distraction implant |
| US6808491B2 (en) * | 2001-05-21 | 2004-10-26 | Syntheon, Llc | Methods and apparatus for on-endoscope instruments having end effectors and combinations of on-endoscope and through-endoscope instruments |
| CN2745517Y (en) * | 2004-07-24 | 2005-12-14 | 张金成 | Cavity mirror thyroid operation retractor |
| CN201108457Y (en) * | 2007-12-02 | 2008-09-03 | 刘建民 | Disposal mouth cavity mouth gag |
| US9241699B1 (en) * | 2014-09-04 | 2016-01-26 | Silk Road Medical, Inc. | Methods and devices for transcarotid access |
-
2020
- 2020-08-18 CN CN202010830112.5A patent/CN111956278B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207928346U (en) * | 2017-03-31 | 2018-10-02 | 张明亮 | A kind of split type combination operation retractor device |
| CN208287033U (en) * | 2017-07-25 | 2018-12-28 | 武汉市中西医结合医院（武汉市第一医院） | A kind of device for endoscopic thyroid surgery special drag hook |
| CN209137521U (en) * | 2018-11-07 | 2019-07-23 | 新乡市中心医院(新乡中原医院管理中心) | A kind of Medical suction unit preventing clogging up device |
| CN109662743A (en) * | 2019-03-02 | 2019-04-23 | 江苏瑞上医疗器械有限公司 | A kind of tissue retraction device of endoscope treatment |
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