CN211381517U

CN211381517U - Working channel system suitable for spontaneous cerebral hemorrhage neuroendoscopy operation

Info

Publication number: CN211381517U
Application number: CN201921773718.9U
Authority: CN
Inventors: 李志红
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-09-01
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a working channel system suitable for a neuroendoscopy operation of spontaneous cerebral hemorrhage, which comprises a transparent outer sleeve with openings at two ends and a transparent inner sleeve which is nested in the outer sleeve and has an opening at the rear end, wherein the outer sleeve extends from two ends of the inner sleeve; the front end of the outer sleeve is provided with a contraction port of which the inner diameter of the end part is smaller than the outer diameter of the inner sleeve, and the front end of the inner sleeve is provided with a smooth blunt end extending out of the contraction port; the rear end of the outer sleeve is provided with an internal thread and is in threaded connection with the inner sleeve; the back end of the inner sleeve is provided with a cover plate, and the cover plate is provided with a mounting hole for mounting the neuroendoscope in a penetrating way. The device has high accuracy and small operation error in the process of being placed into brain tissues, and can meet the application requirement of cerebral hemorrhage emergency operation.

Description

Working channel system suitable for spontaneous cerebral hemorrhage neuroendoscopy operation

Technical Field

The utility model belongs to the technical field of the medical treatment, a working channel system suitable for spontaneous cerebral hemorrhage neuroendoscopy operation is related to.

Background

Hypertensive cerebral hemorrhage is common, is a common critical condition in neurosurgery, and has the characteristics of high morbidity, serious illness, lethality and high disability rate. The operation treatment for removing hematoma is an important means for treating hypertensive cerebral hemorrhage and saving the life of a patient. Different from the traditional craniotomy or hematoma puncture operation, in recent years, neuroendoscopy hematoma removal operation is increasingly applied to hypertensive cerebral hemorrhage.

The neuroendoscopy technology can be used for treating hypertensive cerebral hemorrhage, the neuroendoscopy is arranged in a working channel which is arranged in the hematoma in advance, the endoscope sucks and removes the hematoma from the hematoma under the amplification and direct vision, and related responsibility blood vessels are directly electrocoagulated when active hemorrhage occurs. The neuroendoscopy technology for treating hypertensive cerebral hemorrhage has the advantages of small wound, good visual field, full hematoma removal, complete hemostasis and the like. At present, the technology is widely developed in China. However, despite extensive development, there are still some technical issues in the implementation of this technique, such as how to ensure the accuracy of the implantation position and depth of the working channel and reduce the side damage of the operation.

Hypertensive cerebral hemorrhage is mostly located in the deep brain structures such as basal ganglia and thalamus, and is far away from the surface of cerebral cortex. Due to the technical requirements of endoscopes, the tip of the working channel is required to be placed in the center of the hematoma when the working channel is placed. Currently, this operation is mostly performed by the operator either by hand or based on navigational positioning. The manual operation error is large, and the accuracy of the working channel is difficult to ensure. The navigation positioning can ensure the accuracy of the working channel, but the technical implementation condition is higher, and the operation is not suitable for the cerebral hemorrhage emergency operation. Meanwhile, the process of the implantation of the working channel can not be seen directly, and important structures such as deep cerebral blood vessels are easily injured in the process of the implantation. In addition, the diameter of the working channel of the existing neuroendoscope exceeds 1.5cm, and the larger the diameter of the channel is, the larger the operation side injury is.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a working channel system suitable for spontaneous cerebral hemorrhage neuroendoscopy operation, it is high putting into brain tissue in-process accuracy, and operating error is little.

The utility model discloses a realize through following technical scheme:

a working channel system suitable for a neuroendoscopy operation of spontaneous cerebral hemorrhage comprises a transparent outer sleeve with openings at two ends and a transparent inner sleeve which is nested in the outer sleeve and has an opening at the rear end, wherein the outer sleeve extends out of two ends of the inner sleeve; the front end of the outer sleeve is provided with a contraction port of which the inner diameter of the end part is smaller than the outer diameter of the inner sleeve, and the front end of the inner sleeve is provided with a smooth blunt end extending out of the contraction port; the rear end of the outer sleeve is provided with an internal thread and is in threaded connection with the inner sleeve; the back end of the inner sleeve is provided with a cover plate, and the cover plate is provided with a mounting hole for mounting the neuroendoscope in a penetrating way.

Furthermore, a flexible ring is arranged between the blunt head and the inner sleeve, and an adjusting component for adjusting the inclination angle of the blunt head is arranged in the blunt head.

Furthermore, the adjusting assembly comprises an adjusting rod penetrating through the cover plate, and the adjusting rod is far away from the center of the cover plate and is arranged in the axial direction of the inner sleeve; the front end of the adjusting rod extends to the blunt end, the front end of the adjusting rod is provided with a bending part which is contacted with the inner wall of the blunt end, and the rear end of the adjusting rod is fixedly connected with an adjusting handle which is vertical to the adjusting rod.

Further, the length of the outer sleeve is 60-70 mm, and the outer diameter of the outer sleeve is not more than 10 mm.

Furthermore, the outer wall of the outer sleeve is provided with scales from the front end to the rear end of the outer sleeve.

Further, the blunt tip has a hemispherical structure.

Furthermore, the blunt end is in smooth curved surface transition with the outer side of the contraction opening.

Further, the outer tube rear end is equipped with operating handle, and it is protruding that the outer side of the outer tube rear end is equipped with the joint in the circumference, and the last elasticity joint portion of joint in the joint is protruding that is equipped with of operating handle, the inboard joint groove that sets up with the protruding looks adaptation of joint portion, the opening internal diameter of joint portion is not more than two-thirds of outer sleeve external diameter.

Furthermore, the handle is inclined towards the rear end of the outer sleeve, and the included angle between the handle and the side surface of the outer sleeve is 15-30 degrees.

Furthermore, the rear end of the outer sleeve is provided with an expansion part, the inner side of the expansion part is provided with a ladder-shaped mounting groove, and the rear end of the inner sleeve is provided with a mounting boss in threaded connection with the mounting groove.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model provides a working channel system suitable for spontaneous cerebral hemorrhage neuroendoscopy operation, an inner sleeve is internally embedded in the outer sleeve, a neuroendoscopy is arranged in a mounting hole of a rear end cover plate of the inner sleeve, the device realizes visualization of the arranging process through the neuroendoscopy in the process of arranging the cerebral, and the arranging or the direction adjustment can be stopped in time when important structures such as important blood vessels are met; in addition, the device also avoids the deviation of the extending angle of the device in the process of bare-handed operation and blind insertion by a doctor, and avoids the situation that the device cannot be placed in a target position at one time, thereby avoiding the damage to brain tissues in the process of repeatedly drawing out the device and re-placing the device in the brain; the device can ensure the accuracy of the device in the process of being placed into the brain, has small operation error and can further meet the application requirement of cerebral hemorrhage emergency operation.

Further, the outer tube external diameter is not more than 10mm, compares with the working channel of using at present, and its working channel external diameter is little to imbedding this device in-process, can reducing the surface of a wound size to cerebral cortex, thereby can reduce the damage that the operation brought cerebral cortex, deep blood vessel of brain receives the corresponding reduction of damage probability also.

Furthermore, if the stretching angle of the device does not meet the theoretical angle in the stretching process, the adjusting handle is pulled to drive the adjusting rod to rotate to drive the bending part to rotate, the end part of the bending part slides on the inner wall of the blunt head and enables the blunt head to deviate in the axis direction of the inner sleeve in the sliding process, so that the angle of the blunt head is adjusted, and the device needs to be rotated for a certain angle according to the requirement after the angle of the blunt head is adjusted, so that the central axis of the blunt head faces to the target position; after the blunt angle is adjusted, the device is continuously stretched into the device, so that the device can stretch into the middle of a target position.

Drawings

FIG. 1 is an overall block diagram of the present working channel system;

figure 2 is a top view of the lower portion of the enlarged portion of the present working channel system.

The device comprises a base, a fixing plate, a fixing.

Detailed Description

Specific examples are given below.

As shown in fig. 1 and fig. 2, a working channel system suitable for neuroendoscopic surgery for spontaneous cerebral hemorrhage comprises a transparent outer sleeve 1 with two open ends and a transparent inner sleeve 7 nested in the outer sleeve 1 and having an open back end, wherein two ends of the inner sleeve 7 extend out of the outer sleeve 1; wherein outer tube 1 and interior sleeve pipe 7 all adopt the polymer PVC material to make, its light transmissivity is good, and outer tube 1 length is 60 ~ 70mm, satisfies the needs of operation, and its external diameter is not more than 10mm simultaneously, compares with the working channel of present use, and its working channel external diameter is little to before putting into this device, can reduce the opening size to cerebral cortex, thereby can reduce the damage that the operation brought cerebral cortex, deep blood vessel of brain receives the damage probability and also correspondingly reduces.

As shown in fig. 1, in addition, the front end of the outer sleeve 1 is provided with a contraction port 6 with the end inner diameter smaller than the outer diameter of the inner sleeve 7, the front end of the inner sleeve 7 is provided with a smooth blunt end 9 extending out of the contraction port 6, the inner wall of the contraction port 6 is matched with the shape of the blunt end 9, so that the blunt end 9 is attached to the inner wall of the contraction port 6; in addition, the rear end of the outer sleeve 1 is provided with internal threads and is in threaded connection with the inner sleeve 7, so that the inner sleeve 7 is tightly embedded in the outer sleeve 1, and the blunt end 9 is tightly attached to the inner wall of the contraction opening 6 in the screwing process of the inner sleeve 7, thereby ensuring the stability of the inner sleeve 7 in the outer sleeve 1; the rear end of the inner sleeve 7 is provided with a cover plate 11, the center of the cover plate 11 is provided with a mounting hole, and the inner side of the mounting hole is provided with an elastic material, so that the neuroendoscope 12 can conveniently pass through the mounting hole and be clamped in the mounting hole, and the neuroendoscope 12 is firmly arranged in the inner sleeve 7; the front end of the neuroendoscope 12 extends to the front end of the inner sleeve 7.

For the use of the device, it is required to make a fistula in the cortex of the brain tissue before implanting the device into the brain tissue, and then the device is extended into the brain from the fistula, as shown in fig. 1; the inner sleeve 7 and the outer sleeve 1 are both hollow transparent cylinders, the blunt end 9 at the front end of the inner sleeve 7 is of a transparent hemispherical structure, and the outer side of the contraction opening 6 is in transition with the inner sleeve 7 through a smooth arc-shaped surface, so that the brain is prevented from being damaged by sharp and acute angles in the process of extending a channel; meanwhile, the smooth blunt end 9 and the outer side of the contraction opening 6 are in smooth curved surface transition, so that the injury of acute and acute angles to the brain in the process of extending the device into the brain is avoided.

To the above needs, when the device is placed in, the device is gradually inserted into the brain under the direct vision of the neuroendoscope 12, the inner cannula 7 and the neuroendoscope 12 are withdrawn after the device reaches the target position, and the outer cannula 1 is the operation working channel of the neuroendoscope 12. Compared with the conventional process for implanting the working channel, the method realizes visualization through the neuroendoscope 12 in the implantation process, and can stop in time when important structures such as important blood vessels are encountered. In addition, the angle of the device is prevented from deviating in the process of the doctor operating the blind insertion and inserting into the brain by bare hands, the device cannot stretch into a target position at one time, and therefore the damage to the brain in the process of pulling out the device and re-inserting into the brain for multiple times is avoided; therefore, the accuracy of the device in the process of being placed into the brain can be ensured, the operation error is small, and the application requirement of the cerebral hemorrhage emergency operation is further met.

Further, as shown in fig. 1 and fig. 2, the device is operated by bare hands during the process of placing into the brain, which is difficult to avoid the inconsistency with the theoretical placing angle of the device, so that the device may be placed into the target position from the side of the bleeding target position during the placing process, thereby being not beneficial to the later removal of hematoma; thus, a flexible ring 10 is provided between the blunt tip 9 and the inner cannula 7, and an adjustment assembly for adjusting the angle of the blunt tip 9 is provided in the blunt tip 9. Specifically, the adjusting assembly comprises an adjusting rod 13 penetrating through the cover plate 11, and the adjusting rod 13 is far away from the center of the cover plate 11 and is arranged in the axial direction of the inner sleeve 7; the rear end of the adjusting rod 13 is fixedly connected with an adjusting handle 15 which is vertical to the adjusting rod 13.

To the above, the front end of the adjusting rod 13 extends to the blunt end 9, and the end thereof is provided with a curved portion 14 contacting with the inner wall of the blunt end 9, the end of the curved portion 14 is of an arc-shaped smooth structure, meanwhile, the projection length of the bent part 14 in the direction vertical to the axis of the inner sleeve 7 is larger than the minimum distance from the connection point of the bent part and the adjusting rod 13 to the blunt end 9, if the device is placed in the process, if the angle of the device does not meet the theoretical angle, the adjusting handle 15 is pulled, the adjusting rod 13 rotates to drive the bending part 14 to rotate, the end part of the bending part 14 slides on the inner wall of the blunt head 9, the blunt head 9 deviates in the axial direction of the inner sleeve 7 in the sliding process, and therefore the angle of the blunt head 9 is adjusted, after the angle of the blunt head 9 is adjusted, the device needs to be rotated by a certain angle according to requirements, so that the central axis of the blunt head 9 faces to a target position; after the angle of the blunt head 9 is adjusted, the device is continuously put in, so that the device can extend into the middle of a target position.

Furthermore, the outer wall of the outer sleeve 1 is provided with scales from the front end to the rear end of the outer sleeve 1. The doctor can calculate the depth of the device in the brain through preoperative images, and directly stops the implantation after the implantation reaches the set position.

Further, as shown in fig. 1 and 2, an operating handle 3 is arranged at the rear end of the outer sleeve 1, a clamping protrusion 4 is circumferentially arranged at the rear end of the outer side of the outer sleeve 1, an elastic clamping portion 5 which is clamped on the clamping protrusion 4 is arranged on the operating handle 3, a clamping groove which is matched with the clamping protrusion 4 is arranged on the inner side of the clamping portion 5, and the inner diameter of an opening of the clamping portion 5 is not more than two thirds of the outer diameter of the outer sleeve 1.

To the above needs, the doctor can gradually insert the device into the brain by operating the operating handle 3; however, in the process of operating the operating handle 3 by a doctor, the hand of the doctor needs to keep a distance with the cerebral cortex of a patient, so that the operating handle 3 is inclined towards the rear end of the outer sleeve 1, the specific included angle between the operating handle 3 and the side surface of the outer sleeve 1 is 15-30 degrees, and in addition, the operating handle 3 is also provided with anti-skidding threads, so that the injury to the brain of the patient caused by the sliding of the device in the hands of the doctor or the slipping of the device from the hands of the doctor in the operating process of the doctor is avoided; outer tube 1 is impressed in operating handle 3's elasticity joint portion 5 through the manpower in, simultaneously the protruding 4 of joint in the 1 outside circumference of outer tube stretches into 5 inboard joint inslots of joint portion to make the joint of 3 fastenings of operating handle on outer tube 1, joint protruding 4 and joint groove mutually support simultaneously, avoided the slip of handle along 1 axis direction of outer tube, guaranteed doctor operation process's stability.

Furthermore, as shown in fig. 1 and fig. 2, since the outer diameters of the outer sleeve 1 and the inner sleeve 7 are small, and the wall thicknesses of the main body parts of the outer sleeve 1 and the inner sleeve 7 are thin, which is not beneficial to the connection of the outer sleeve 1 and the inner sleeve 7, the rear end of the outer sleeve 1 is provided with a step-shaped expansion part 2, the outer diameter of the expansion part 2 is 15-20mm, the inner side of the expansion part 2 is provided with a step-shaped installation groove, the side wall of the installation groove is provided with an internal thread, the rear end of the inner sleeve 7 is provided with an installation boss 8 in threaded connection with the installation groove, the inner sleeve 7 is tightly connected in the outer sleeve 1 through the installation boss 8, and the.

The embodiments given above are preferred examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical features of the technical solution of the present invention by those skilled in the art all belong to the protection scope of the present invention.

Claims

1. A working channel system suitable for a neuroendoscopy operation of spontaneous cerebral hemorrhage is characterized by comprising a transparent outer sleeve (1) with openings at two ends and a transparent inner sleeve (7) which is nested in the outer sleeve (1) and has an opening at the rear end, wherein the two ends of the inner sleeve (7) extend out of the outer sleeve (1); the front end of the outer sleeve (1) is provided with a contraction port (6) with the end part inner diameter smaller than the outer diameter of the inner sleeve (7), and the front end of the inner sleeve (7) is provided with a smooth blunt end (9) extending out of the contraction port (6); the rear end of the outer sleeve (1) is provided with an internal thread and is in threaded connection with the inner sleeve (7); the rear end of the inner sleeve (7) is provided with a cover plate (11), and the cover plate (11) is provided with a mounting hole for mounting a neuroendoscope in a penetrating way.

2. The working channel system suitable for the neuroendoscopic surgery for spontaneous cerebral hemorrhage according to claim 1, wherein a flexible ring (10) is arranged between the blunt tip (9) and the inner cannula (7), and an adjusting component for adjusting the inclination angle of the blunt tip (9) is arranged in the blunt tip (9).

3. The working channel system suitable for the neuroendoscopic surgery for spontaneous cerebral hemorrhage according to claim 2, wherein the adjusting assembly comprises an adjusting rod (13) penetrating through the cover plate (11), the adjusting rod (13) is far away from the center of the cover plate (11) and is arranged in the axial direction of the inner sleeve (7); the front end of the adjusting rod (13) extends to the blunt head (9), the front end of the adjusting rod is provided with a bending part (14) which is contacted with the inner wall of the blunt head (9), and the rear end of the adjusting rod (13) is fixedly connected with an adjusting handle (15) which is vertical to the adjusting rod (13).

4. The working channel system suitable for the neuroendoscopic surgery for spontaneous cerebral hemorrhage according to claim 1, wherein the length of the outer cannula (1) is 60-70 mm, and the outer diameter is not more than 10 mm.

5. The working channel system suitable for the neuroendoscopic surgery for spontaneous cerebral hemorrhage according to claim 4, wherein the outer wall of the outer sleeve (1) is provided with a scale from the front end to the back end of the outer sleeve (1).

6. A working channel system suitable for neuroendoscopic surgery for spontaneous cerebral hemorrhage according to claim 1, wherein the blunt tip (9) has a hemispherical structure.

7. A working channel system suitable for neuroendoscopic surgery for spontaneous cerebral hemorrhage according to claim 6, wherein the blunt tip (9) is in smooth curved transition with the outside of the constriction (6).

8. The working channel system suitable for the neuroendoscopy operation for spontaneous cerebral hemorrhage according to claim 1, wherein an operating handle (3) is arranged at the rear end of the outer sleeve (1), a clamping protrusion (4) is circumferentially arranged at the rear end of the outer side of the outer sleeve (1), an elastic clamping portion (5) clamped on the clamping protrusion (4) is arranged on the operating handle (3), a clamping groove matched with the clamping protrusion (4) is arranged at the inner side of the clamping portion (5), and the inner diameter of an opening of the clamping portion (5) is not more than two thirds of the outer diameter of the outer sleeve (1).

9. The working channel system suitable for the neuroendoscopic surgery for spontaneous cerebral hemorrhage according to claim 8, wherein the operating handle (3) is inclined towards the rear end of the outer sleeve (1) and forms an angle of 15-30 degrees with the side surface of the outer sleeve (1).

10. The working channel system suitable for the neuroendoscopy surgery for spontaneous cerebral hemorrhage according to claim 1, wherein a swelling part (2) is arranged at the rear end of the outer sleeve (1), a step-shaped installation groove is arranged at the inner side of the swelling part (2), and an installation boss (8) in threaded connection with the installation groove is arranged at the rear end of the inner sleeve (7).