CN210447087U

CN210447087U - Tectorial membrane open aigrette mouth type neuroendoscopy sheath

Info

Publication number: CN210447087U
Application number: CN201920253820.XU
Authority: CN
Inventors: 吴立红; 陆华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2020-05-05
Anticipated expiration: 2029-02-27

Abstract

The utility model relates to an open aigrette mouth formula neuroendoscope sheath of tectorial membrane belongs to medical instrument technical field. Comprises a sheath tube and an adjusting part, wherein the sheath tube consists of a left sheath tube and a right sheath tube; the left sheath tube comprises a left sheath wall, one side of the left sheath wall is provided with a left sheath connecting shaft, and a left connecting wheel is arranged on the left sheath connecting shaft; the right sheath tube comprises a right sheath wall, one side of the right sheath wall is provided with a right sheath connecting shaft, and a right connecting wheel is arranged on the right sheath connecting shaft; the adjusting part comprises a fixed block, the left side of the fixed block is a fixed connecting end, one end of the fixed connecting end is a transverse adjusting end, and a guide groove is formed in the transverse adjusting end. The utility model discloses simple structure, design benefit can make sheath pipe level expansion through adjusting the regulation worm wheel, also can adjust through left regulating wheel, right regulating wheel and increase sheath pipe distal end rotation angle, has both enlarged the operation field of vision of scope, has reduced cortical brain tissue damage again, has kept the wicresoft advantage of neuroendoscopy. The outside of the sheath tube is covered with a film, so that the embedded injury of brain tissues and blood vessels during sheath tube expansion in the operation is reduced.

Description

Tectorial membrane open aigrette mouth type neuroendoscopy sheath

Technical Field

The utility model relates to a tectorial membrane open aigrette mouth type neuroendoscopy sheath used in neuroendoscopy operation, which belongs to the technical field of medical apparatus and instruments.

Background

Neuroendoscopy is an important direction for the development of minimally invasive neurosurgery, has small trauma, can go deep into an operation area and observe and operate an operation area at a short distance, but because the brain parenchyma lacks air or water environment necessary for the neuroendoscopy operation, the neuroendoscopy sheath is necessary to finish the operation of the neuroendoscopy in the brain parenchyma. At present, the working sheath of the neuroendoscopy is mostly of a fixed diameter, and has the defects of limited operation space, narrow operation visual field, difficult hemostasis and the like, and in addition, the mirror surface is easy to pollute in the operation, and the operation instruments are easy to conflict, so that the neuroendoscopy operation is greatly limited in the brain parenchyma; there are also expandable working sheaths for endoscopes, but the design is such that, like surgical retractors, the head and tip are proportionally enlarged, so that the minimally invasive advantages of the endoscope are lost.

Disclosure of Invention

The utility model aims at solving the problem that the surgical field is less and not beneficial to the brain minimally invasive surgery to go on because of the fixed sheath pipe diameter causes of the neuroendoscopy work sheath in the operation in the prior art, and providing a design benefit, can adjust the open aigrette mouth type neuroendoscopy sheath of tectorial membrane of sheath pipe internal diameter and distal end rotation angle.

The utility model adopts the following technical scheme: a tectorial membrane open aigrette type neuroendoscopical sheath is characterized in that the endoscopical sheath realizes horizontal expansion of a sheath tube through a worm gear structure, and the turning angle of the far end of the sheath tube is adjusted through a rotating structure.

Further, the endoscope sheath comprises a sheath tube and an adjusting part, wherein the sheath tube consists of a left sheath tube and a right sheath tube; the utility model discloses a sheath pipe, including left sheath wall, right sheath wall, regulation portion, fixed block, horizontal regulation end, movable block, adjusting worm wheel inboard sets up adjusting screw, the movable block is connected to adjusting screw one end, left side sheath wall with be provided with the sheath core in the middle of the right sheath wall, regulation portion includes the fixed block, the fixed block left side is fixed connection end, fixed connection end one end is horizontal regulation end, it has the guide way to open in the horizontal regulation end, slidable mounting movable block in the guide way, horizontal regulation end side is rotated the installation and is adjusted the worm wheel, adjust the worm wheel inboard.

Furthermore, the rotating structure comprises a left sheath connecting shaft, one side of the wall of the left sheath is provided with the left sheath connecting shaft, and a left connecting wheel is arranged on the left sheath connecting shaft; one side of the right sheath wall is provided with a right sheath connecting shaft, and a right connecting wheel is arranged on the right sheath connecting shaft; a left adjusting wheel is rotatably mounted on the fixed connecting end, a left fixing bulge is arranged below the left adjusting wheel, a right adjusting wheel is rotatably mounted on the moving block, and a right fixing bulge is arranged below the right adjusting wheel; the left sheath connecting shaft is rotatably arranged at the fixed connecting end, the left connecting wheel is positioned between the adjusting wheel and the left fixed bulge, the right sheath connecting shaft is rotatably arranged at the moving block, and the right connecting wheel is positioned between the adjusting wheel and the right fixed bulge.

Furthermore, the left sheath tube and the right sheath tube are made of medical transparent hard plastics.

Furthermore, the left sheath wall and the right sheath wall are arc-shaped thin-walled parts.

Further, the upper ends of the left sheath wall and the right sheath wall are dark-colored.

Furthermore, the end part of the fixing block is provided with a fixing hole.

Furthermore, the left connecting wheel, the right connecting wheel, the left adjusting wheel and the right adjusting wheel are provided with continuous gear-shaped bulges.

Further, the outer side of the sheath tube is covered with a film, and the film can be made of latex, polyurethane or polyurethane material.

Further, the cross section of the sheath core is elliptical.

The utility model discloses simple structure, design benefit can make sheath pipe level expansion through adjusting the regulation worm wheel, also can adjust through left regulating wheel, right regulating wheel and increase sheath pipe distal end rotation angle, has both enlarged the operation field of vision of scope, has reduced cortical brain tissue damage again, has kept the wicresoft advantage of neuroendoscopy. The outside of the sheath tube is covered with a film, so that the embedded injury of brain tissues and blood vessels during sheath tube expansion in the operation is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the sheath core of the present invention.

Fig. 3 is a schematic front view of the structure of the present invention.

Fig. 4 is a right-side view of the structure of fig. 5.

Fig. 5 is a schematic top view of fig. 4.

Fig. 6 is a schematic structural view of the left connecting wheel and the right connecting wheel of the present invention.

Fig. 7 is a schematic structural view of the left sheath of the present invention.

Fig. 8 is a schematic structural view of the right sheath of the present invention.

Reference numerals: the sheath comprises a sheath core 1, a left sheath tube 2, a left sheath wall 2-1, a left sheath connecting shaft 2-2, a left connecting wheel 2-3, a right sheath tube 3, a right sheath wall 3-1, a right sheath connecting shaft 3-2, a right connecting wheel 3-3, a fixed block 4, a fixed connecting end 4-1, a transverse adjusting end 4-2, an adjusting worm wheel 4-3, an adjusting screw rod 4-4, a left adjusting wheel 4-5, a right adjusting wheel 4-6, a moving block 5, a fixed hole 6, a protective film 7 and the like.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1-8, a tectorial open aigrette type neuroendoscopical sheath comprises a sheath tube and an adjusting part. The sheath is made of medical transparent hard plastic and consists of a left sheath 2 and a right sheath 3. As shown in fig. 7, the left sheath tube 2 comprises a left sheath wall 2-1, the left sheath wall 2-1 is an arc-shaped thin-walled member, one side of the left sheath wall 2-1 is a left sheath connecting shaft 2-2, the left sheath connecting shaft 2-2 is cylindrical, and a left connecting wheel 2-3 is arranged on the left sheath connecting shaft 2-2. As shown in fig. 8, the right sheath tube 3 comprises a right sheath wall 3-1, a circular arc-shaped thin-wall part is arranged on the right sheath wall 3-1, a right sheath connecting shaft 3-2 is arranged on one side of the right sheath wall 3-1, the right sheath connecting shaft 3-2 is cylindrical, and a right connecting wheel 3-3 is arranged on the right sheath connecting shaft 3-2. As shown in FIG. 6, the left connecting wheel 2-3 and the right connecting wheel 3-3 are provided with continuous protrusions or grooves, and in this embodiment, the left connecting wheel 2-3 and the right connecting wheel 3-3 are provided with gear-shaped protrusions.

As shown in fig. 1, 4 and 5, the adjusting part comprises a fixed block 4, a fixed connecting end 4-1 is arranged on the left side of the fixed block 4, a transverse adjusting end 4-2 is arranged at one end of the fixed connecting end 4-1, a guide groove is formed in the transverse adjusting end 4-2, a moving block 5 is slidably mounted in the guide groove, an adjusting worm wheel 4-3 is rotatably mounted on the side surface of the transverse adjusting end 4-2, an adjusting screw rod 4-4 matched with the adjusting worm wheel 4-3 is arranged on the inner side of the adjusting worm wheel 4-3, and one end of the adjusting screw rod 4-4. A left adjusting wheel 4-5 is rotatably arranged on the fixed connecting end 4-1, a left fixing bulge is arranged below the left adjusting wheel 4-5, and a certain space is reserved between the left adjusting wheel 4-5 and the left fixing bulge. The moving block 5 is rotatably provided with a right adjusting wheel 4-6, a right fixing bulge is arranged below the right adjusting wheel 4-6, and a certain space is formed between the right adjusting wheel 4-6 and the right fixing bulge. The left regulating wheel 4-5 and the right regulating wheel 4-6 are provided with continuous bulges or grooves, and in the embodiment, the left regulating wheel 4-5 and the right regulating wheel 4-6 are provided with gear-shaped bulges.

As shown in figure 1, the left sheath wall 2-1 and the right sheath wall 3-1 are mutually included and have a tubular shape, the sheath core 1 is arranged between the left sheath wall 2-1 and the right sheath wall 3-1, as shown in figure 2, the cross section of the sheath core 1 is elliptical, the long axis of the sheath core 1 is 10-15mm, and the short axis of the sheath core 1 is 6-10 mm. The left sheath connecting shaft 2-2 is rotatably arranged at the fixed connecting end 4-1, and the left connecting wheel 2-3 is positioned between the adjusting wheel 4-5 and the left fixed bulge. The right sheath connecting shaft 3-2 is rotatably arranged on the moving block 5, and the right connecting wheel 3-3 is positioned between the adjusting wheel 4-5 and the right fixing bulge. The end part of the fixing block 4 is provided with a fixing hole 6 for connecting and fixing the neuroendoscope.

As shown in fig. 4 to 5, the outer side of the sheath is covered with a protective film 7 to prevent the side brain tissue and blood vessel from being damaged by insertion during the operation of dilating the sheath. The cover film is made of a transparent flexible material. Materials such as latex, polyurethane and polyurethane may be used.

The upper ends of the left sheath wall 2-1 and the right sheath wall 3-1 are dark colors, so that an endoscope and surgical instruments can conveniently enter and exit the endoscope sheath under the dark light background, and brain tissues cannot be injured by mistake.

During the use, insert sheath core 1 and left sheath pipe 2, right sheath pipe 3 together into the cerebral tissue cortex stoma to deepen gradually to the focus position, then take out sheath core 1, when the horizontal opening range of left sheath pipe 2 and right sheath pipe 3 needs to be adjusted, rotate regulation worm wheel 4-3, adjust worm wheel 4-3 and drive movable block 5 through adjusting screw 4-4, realize finally that right sheath pipe 3 produces horizontal displacement for left sheath pipe 2. When the turning angle of the left sheath wall 2-1 needs to be adjusted, only the left adjusting wheel 4-5 needs to be rotated, and the left adjusting wheel 4-5 drives the left sheath wall 2-1 to rotate through the left connecting wheel 2-3 and then is fixed by the left fixing bulge. When the turning angle of the right sheath wall 3-1 needs to be adjusted, only the right adjusting wheel 5-5 needs to be rotated, and the right adjusting wheel 5-5 drives the left sheath wall 2-1 to rotate through the right connecting wheel 3-3 and then is fixed by the left fixing bulge.

The utility model discloses a use implementation method: a straight incision of 3-4cm is selected according to the hypertensive cerebral hemorrhage part, a hole is drilled and expanded to form a bone window with the diameter of 2.0-3.0cm, the dura mater is cut and suspended, a brain needle is slowly placed in the bone window, the brain needle is pulled out after detecting hematoma and releasing partial blood liquid, the brain needle is separated and expanded along a proper natural fissure or cortex of a sulcus, a covering film open aigrette type neuroendoscopy sheath is slowly placed in the bone window, a sheath core 1 is pulled out, a neuroendoscopy is placed in the bone window and is fixed through a fixing hole 6, and the intracerebral hematoma is removed under the direct vision endoscopy of nerves. The double-suction technology is applied to hematoma removal and hemostasis, the hematoma is separated and sucked through an endoscope working channel and an endoscope sheath inner gap by using 2 suction devices with the diameter of 2 mm respectively, a strong suction tube mainly sucks the hematoma, a weak suction tube mainly separates and draws, a weak suction tube mainly sucks a bleeding point for active bleeding, and single-pole electrocoagulation is used for electrocoagulation hemostasis by contacting a far-end suction tube with low current, so that most of the hemostasis can be effectively realized. If more extrasheath hematomas exist or extrasheath hemorrhage with unknown sources appears, the left sheath tube 2 and the right sheath tube 3 are turned over as required to increase the angle of the distal end of the sheath tube, the operation visual field of the endoscope is enlarged, or the worm wheel is adjusted to enable the left sheath tube 2 and the right sheath tube 3 to be horizontally expanded to further enlarge the opening of the sheath tube, more operation spaces are obtained, and the intracerebral hematoma and hemostasis are continuously removed by applying the double-suction technology under the direct vision. And resetting the sheath tube after the operation is finished, and withdrawing the neuroendoscopy sheath.

Claims

1. The utility model provides an open aigrette mouth formula neuroendoscope sheath of tectorial membrane which characterized in that: the endoscope sheath realizes horizontal expansion of the sheath tube through a worm gear structure, and the turning angle of the far end of the sheath tube is adjusted through a rotating structure.

2. The coated open aigrette-style neuroendoscopic sheath of claim 1, wherein: the endoscope sheath comprises a sheath tube and an adjusting part, wherein the sheath tube consists of a left sheath tube (2) and a right sheath tube (3); the left sheath (2) comprises a left sheath wall (2-1), the right sheath (3) comprises a right sheath wall (3-1), the adjusting part comprises a fixed block (4), the left side of the fixed block (4) is provided with a fixed connecting end (4-1), one end of the fixed connecting end (4-1) is a transverse adjusting end (4-2), a guide groove is arranged in the transverse adjusting end (4-2), a moving block (5) is slidably arranged in the guide groove, an adjusting worm wheel (4-3) is rotatably arranged on the side surface of the transverse adjusting end (4-2), an adjusting screw rod (4-4) is arranged at the inner side of the adjusting worm wheel (4-3), one end of the adjusting screw rod (4-4) is connected with a moving block (5), a sheath core (1) is arranged between the left sheath wall (2-1) and the right sheath wall (3-1).

3. The coated open aigrette-style neuroendoscopic sheath of claim 2, wherein: the rotating structure comprises a left sheath connecting shaft (2-2), one side of the left sheath wall (2-1) is provided with the left sheath connecting shaft (2-2), and a left connecting wheel (2-3) is arranged on the left sheath connecting shaft (2-2); one side of the right sheath wall (3-1) is provided with a right sheath connecting shaft (3-2), and the right sheath connecting shaft (3-2) is provided with a right connecting wheel (3-3); a left adjusting wheel (4-5) is rotatably mounted on the fixed connecting end (4-1), a left fixing protrusion is arranged below the left adjusting wheel (4-5), a right adjusting wheel (4-6) is rotatably mounted on the moving block (5), and a right fixing protrusion is arranged below the right adjusting wheel (4-6); the left sheath connecting shaft (2-2) is rotatably installed at the fixed connecting end (4-1), the left connecting wheel (2-3) is located between the adjusting wheel (4-5) and the left fixing bulge, the right sheath connecting shaft (3-2) is rotatably installed at the moving block (5), and the right connecting wheel (3-3) is located between the adjusting wheel (4-5) and the right fixing bulge.

4. The coated open aigrette-style neuroendoscopic sheath of claim 2, wherein: the left sheath tube (2) and the right sheath tube (3) are made of medical transparent hard plastics.

5. The coated open aigrette-style neuroendoscopic sheath of claim 2, wherein: the left sheath wall (2-1) and the right sheath wall (3-1) are arc-shaped thin-wall parts.

6. The coated open aigrette-style neuroendoscopic sheath of claim 2, wherein: the upper ends of the left sheath wall (2-1) and the right sheath wall (3-1) are dark-colored.

7. The coated open aigrette-style neuroendoscopic sheath of claim 2, wherein: and a fixing hole (6) is formed in the end part of the fixing block (4).

8. The coated open aigrette-style neuroendoscopic sheath of claim 3, wherein: the left connecting wheel (2-3), the right connecting wheel (3-3), the left adjusting wheel (4-5) and the right adjusting wheel (4-6) are provided with continuous gear-shaped bulges.

9. The coated open aigrette-style neuroendoscopic sheath of claim 2, wherein: the sheath pipe outside is tectorial membrane (7), the tectorial membrane can adopt latex, polyimine fat or polyurethane material to make.

10. The coated open aigrette-style neuroendoscopic sheath of claim 2, wherein: the cross section of the sheath core (1) is oval.