CN218128493U

CN218128493U - Limiting device for spinal endoscope

Info

Publication number: CN218128493U
Application number: CN202222586114.1U
Authority: CN
Inventors: 商澜镨; 李水清
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2022-12-27
Anticipated expiration: 2032-09-27

Abstract

The utility model relates to a stop device for backbone endoscope belongs to medical instrument technical field, when having solved among the prior art and carrying out the backbone endoscope operation, can't adjust the length that the outer tube stretched into in the patient body and can't carry out the problem of finely tuning to the outer sleeve pipe angle. The utility model discloses a limiting device for a spinal endoscope, which comprises an adjusting component; the adjusting part comprises an inner ball and an outer ball, a channel is arranged along the center of the inner ball, the outer sleeve penetrates through the channel and can move along the channel to adjust the length of the outer sleeve extending into the patient, the outer ball is provided with a spherical cavity, the inner ball is arranged in the spherical cavity, and the inner ball can rotate relative to the outer ball to adjust the angle of the outer sleeve extending into the patient. The utility model provides a stop device for backbone endoscope can realize supporting the device, is convenient for adjust outer tube and stretches into internal length of patient and angle.

Description

Limiting device for spinal endoscope

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a stop device for backbone endoscope.

Background

The spinal endoscope operation is a main treatment means for treating lumbar intervertebral disc protrusion and lumbar spinal stenosis, the spinal endoscope is punctured through a minimally invasive operation wound to reach a diseased part, a lens is positioned at the tail part of the spinal endoscope, so that a doctor can clearly observe the diseased part to perform the operation, in the process, a puncture needle is inserted into a bone at the position where the diseased part is shielded through C-shaped arm intermittent perspective, then a guide pin is inserted into the bone at the position where the diseased part is shielded through a hollow inner channel of the puncture needle to be positioned, a bone drill is sleeved on the guide pin to punch the bone at the position where the diseased part is blocked and then is drawn out, an outer sleeve for the spinal endoscope is inserted along the guide pin and is positioned at the diseased part, the guide pin is drawn out, the spinal endoscope is inserted into the outer sleeve and is enabled to reach the diseased part directly, and an operator can accurately cut off the diseased part through the spinal endoscope without damaging other normal tissues.

The outer sleeve for the spinal endoscope in the prior art is a smooth hollow tube with a fixed handle arranged on the surface, and the angle of the spinal endoscope in the outer sleeve cannot be finely adjusted through the outer sleeve, so that the range which can be observed by an operator through the spinal endoscope is narrow; moreover, the outer cannula for the spinal endoscope in the prior art lacks a support structure, and the length and the angle of the outer cannula extending into the body of a patient are usually kept unchanged by holding the outer cannula by an operator in an operation, so that the physical consumption of the operator is large due to long-time operation, and the stable state of the outer cannula in the body of the patient is difficult to maintain.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the utility model aims at providing a stop device for backbone endoscope has solved among the prior art when carrying out the backbone endoscope operation, can't adjust the length that the outer tube stretched into in the patient body and can't carry out the problem of finely tuning to outer tube angle.

The purpose of the utility model is realized mainly through the following technical scheme:

the utility model provides a limiting device for a spinal endoscope, which comprises an adjusting component; the adjusting part comprises an inner ball and an outer ball, a channel is arranged along the center of the inner ball, the outer sleeve penetrates through the channel and can move along the channel to adjust the length of the outer sleeve extending into the patient, the outer ball is provided with a spherical cavity, the inner ball is arranged in the spherical cavity, and the inner ball can rotate relative to the outer ball to adjust the angle of the outer sleeve extending into the patient.

Furthermore, the center of the inner ball coincides with the center of the outer ball, and the inner ball is attached to the spherical cavity of the outer ball.

Further, the inner diameter of the channel is equal to the outer diameter of the outer sleeve.

Furthermore, the adjusting component also comprises a fixing sleeve; the end face of one end of the channel is set as a first end face, the end face of the other end is set as a second end face, and the first end face is provided with a fixed sleeve.

Further, the adjusting assembly further comprises an adjusting screw; a through hole is arranged in the fixed sleeve, and the outer sleeve passes through the through hole on the fixed sleeve; the side wall of the fixed sleeve is provided with a threaded hole which is communicated with a through hole in the fixed sleeve; the adjusting screw can pass through the threaded hole and abut against and press the outer wall of the outer sleeve.

Furthermore, a first through hole and a second through hole are formed in the outer ball; the first through hole and the second through hole are communicated with the spherical cavity in the outer ball.

Further, the adjusting assembly also comprises a supporting disc; the supporting disk is sleeved on the outer ball through the connecting hole.

Furthermore, the aperture of the first through hole and the aperture of the second through hole are both larger than the diameter of the channel.

Further, the outer sleeve can simultaneously pass through the first through hole, the channel and the second through hole.

Furthermore, the center line of the supporting disc, the center of the second through hole and the center of the second end face are located on the same straight line.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

(1) The utility model discloses a stop device for backbone endoscope, interior ball locate the spherical cavity of ectosphere and laminate with spherical cavity, insert the outer tube in the passageway of interior ball, realize the angle fine setting of outer tube through the relative rotation of interior ball and ectosphere, the flexibility is high;

(2) The utility model discloses a stop device for backbone endoscope connects fixed cover on the first terminal surface of interior ball, is equipped with the screw hole on the lateral wall of fixed cover, and adjusting screw can pass the screw hole and support the outer tube that presses fixed cover to the realization is fixed adjusting part different positions on the outer tube, is convenient for adjust the internal outer tube length of stretching into the patient in the art.

(3) The utility model discloses a stop device for backbone endoscope, it is internal that outer sleeve pipe is for the vertical patient that inserts in patient skin surface at the operation in-process, through set up circular shape supporting disk and patient skin laminating at the ectosphere, be favorable to through the supporting disk with the vertical support of stop device of backbone endoscope on patient's health to be favorable to keeping the stability of intraoperative device and alleviate operating personnel long-time hand-held device's in the art pressure.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

Fig. 1 is a schematic structural view of a limiting device for a spinal endoscope according to the present invention;

FIG. 2 is a schematic structural view of an inner ball of the limiting device for a spinal endoscope of the present invention;

FIG. 3 is a side view of the inner ball of the stop device for a spinal endoscope of the present invention;

FIG. 4 is a schematic view of a portion of an adjustment assembly of the stop device for a spinal endoscope of the present invention;

fig. 5 is a schematic structural view of an outer ball of the limiting device for the spinal endoscope of the present invention.

Reference numerals are as follows:

1-an outer sleeve; 2-a regulating component; 21-fixing sleeves; 22-adjusting screws; 23-inner ball; 231-a channel; 232-a first end face; 233-a second end face; 24-outer ball; 241-a first via; 242-a second via; 25-support the disc.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, is made to illustrate, and not to limit the scope of the invention, the embodiments of the invention, and the accompanying drawings are included as part of the present invention.

The embodiment of the utility model is specifically described as follows with reference to the attached figures 1 to 5:

the limiting device for the spinal endoscope provided by the embodiment comprises an adjusting assembly 2, as shown in fig. 1, wherein the adjusting assembly 2 can move along an outer sleeve 1 and is fixed on the outer sleeve 1.

Spinal endoscope includes the body of rod and locates the camera lens of body of rod one end, and the cavity in outer tube 1 can carry out the angle fine setting with spinal endoscope's the body of rod, utilizes adjusting part 2 to outer tube 1 for the spinal endoscope body of rod in the outer tube 1 promotes pipe realizes the angle fine setting.

The adjusting component 2 comprises an inner ball 23 and an outer ball 24, the inner ball 23 is arranged in a spherical cavity in the outer ball 24, and the outer diameter of the inner ball 23 is equal to the inner diameter of the spherical cavity, so that the inner ball 23 can be attached to the spherical cavity; the spherical cavity has a center coincident with the center of the outer ball 24, such that the inner ball 23 is coincident with the center of the outer ball 24, such that the inner ball 23 can rotate within the outer ball 24 and maintain the relative positions of the inner ball 23 and the outer ball 24 when rotating.

Further, referring to fig. 2, a channel 231 is provided on the inner ball 23, and the inner diameter of the channel 231 is equal to the outer diameter of the outer sleeve 1, so that the outer sleeve 1 can pass through the channel 231 and be attached to the channel 231, which is convenient for controlling the outer sleeve 1 to rotate synchronously when the inner ball 23 rotates.

Further, referring to fig. 3, the end surfaces of the two ends of the channel 231 are a first end surface 232 and a second end surface 233, respectively, the first end surface 232 is provided with the fixing sleeve 21, the fixing sleeve 21 is configured as a cylindrical body with a through hole, and the central axis of the fixing sleeve 21 and the spherical center of the inner ball 23 are located on the same straight line, so that the fixing sleeve 21 is perpendicular to the first end surface 232, and the outer sleeve 1 passing through the fixing sleeve 21 is prevented from deflecting.

Furthermore, the diameter of the through hole of the fixing sleeve 21 is equal to the outer diameter of the outer sleeve 1, so that the outer sleeve 1 can pass through the fixing sleeve 21 and be attached to the through hole of the fixing sleeve 21, and the stability of the outer sleeve 1 in the adjusting component 2 is improved.

Furthermore, a threaded hole is formed in the side wall of the fixing sleeve 21, and the adjusting screw 22 is connected with the threaded hole; the threaded hole is communicated with the through hole in the fixing sleeve 21, so that the adjusting screw 22 can penetrate through the threaded hole to press against the outer sleeve 1 in the fixing sleeve 21, and the adjusting assembly 2 is fixed on the outer sleeve 1.

Referring to fig. 4 and 5, the outer ball 24 is provided with a first through hole 241 and a second through hole 242, and the first through hole 241 and the second through hole 242 are communicated with the spherical cavity inside the outer ball 24; the first through hole 241 is located on the same side as the first end surface 232, and the second through hole 242 is located on the same side as the second end surface 233, so that the outer sleeve 1 can pass through the first through hole 241, the channel 231, and the second through hole 242 at the same time.

The aperture of the first through hole 241 and the second through hole 242 is larger than the diameter of the channel 231, and the centers of the first through hole 241 and the second through hole 242 are aligned with the spherical center of the inner ball 23, so that the outer sleeve 1 positioned in the channel 231 is positioned at the center of the outer ball 24, thereby facilitating the angle adjustment.

Further, the first end surface 232 is circular, the inner ring diameter is the inner diameter of the channel 231, and the outer ring diameter is smaller than the aperture of the first through hole 241, so that the first end surface 232 protrudes out of the outer ball 24, the inner ball 23 can rotate relative to the outer ball 24 by swinging the outer sleeve 1 in the channel 231, and the angle adjustment of the outer sleeve 1 is realized.

Further, be equipped with supporting disk 25 on the ectosphere 24, supporting disk 25 is used for laminating the skin, outer sleeve pipe 1 inserts the patient internal for patient's skin surface is vertical in the operation in-process, through set up circular shape supporting disk 25 and patient's skin laminating on ectosphere 24, be favorable to through the supporting disk with spinal endoscope's stop device vertical support on patient's health to be favorable to keeping stability of spinal endoscope's stop device on patient's health in the art and alleviate operating personnel and hold spinal endoscope's stop device's pressure for a long time in the art.

Specifically, the supporting plate 25 is arranged at the end of the outer ball 24 where the second through hole 242 is located, preferably a circular plate, a connecting hole is formed in the middle of the supporting plate, the supporting plate 25 is sleeved on the outer ball 24 through the connecting hole and is connected in an adhering mode, so that the outer sleeve 1 can simultaneously penetrate through the second through hole 242 and the connecting hole, the connected supporting plate 25 can be attached to the skin surface of a patient, and the limiting device is vertically supported on the skin surface of the patient, so that the pressure of an operator holding the device for a long time in an operation can be relieved, and the stability of the device in the operation can be kept.

Optionally, the supporting plate 25 is disposed at the edge of the second through hole 242, the edge of the second through hole 242 is flush with the port of the channel 231, so that the operator can adjust the length of the outer sleeve 1 inserted into the body of the patient conveniently, and the center line of the supporting plate 25 is aligned with the centers of the second through hole 242 and the second end surface 233, so that the supporting plate 25 is perpendicular to the outer sleeve 1, further improving the stability of the device.

Optionally, the end surface of the support disc 25 that contacts the skin of the patient is provided with an anti-slip layer, preferably a soft rubber layer, to avoid the support disc 25 from shifting on the skin of the patient.

It should be noted that, during an operation, an operator inserts the outer cannula 1 into a patient body along a positioned guide pin to reach a diseased region, moves the adjusting assembly 2 along the outer cannula 1 to make the support plate 25 fit to the surface of the skin of the patient, screws the adjusting screw 22 to fix the adjusting assembly 2 on the outer cannula 1, and ensures that the depth of the outer cannula 1 inserted into the patient body remains unchanged, inserts the spinal endoscope into the outer cannula 1 after the guide pin is withdrawn, so that the lens end of the spinal endoscope is flush with the end of the outer cannula 1 located in the patient body, holds the outer ball 24 with one hand, swings the spinal endoscope or the outer cannula 1 with the other hand, so that the outer cannula 1 drives the inner ball 23 to rotate in the outer ball 24, and thereby the observation angle of the spinal endoscope in the outer cannula 1 is finely adjusted.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. A stop device for a spinal endoscope, characterized by comprising an adjustment assembly (2); adjusting part (2) include interior ball (23) and outer ball (24), follow the centre of sphere of interior ball (23) is equipped with passageway (231), and outer tube (1) passes passageway (231), and can follow passageway (231) remove in order to adjust outer tube (1) stretches into the internal length of patient, outer ball (24) are equipped with spherical cavity, interior ball (23) are located in the spherical cavity, and can for outer ball (24) rotate in order to adjust the angle that outer tube (1) stretches into the patient.

2. Stop device for a spinal endoscope according to claim 1, characterized in that the spherical centre of the inner ball (23) coincides with the spherical centre of the outer ball (24), the inner ball (23) fitting into the spherical cavity of the outer ball (24).

3. A stop device for a spinal endoscope according to claim 2, characterized in that the inner diameter of said channel (231) is equal to the outer diameter of said external cannula (1).

4. A stop device for a spinal endoscope according to claim 3, characterized in that said adjustment assembly (2) further comprises a fixing sleeve (21); the one end terminal surface of passageway (231) is established to first terminal surface (232), and the other end terminal surface is established to second terminal surface (233), be equipped with on first terminal surface (232) fixed cover (21).

5. A stop device for a spinal endoscope according to claim 4, characterized in that said adjustment assembly (2) further comprises an adjustment screw (22); a through hole is formed in the fixing sleeve (21), and the outer sleeve (1) penetrates through the through hole in the fixing sleeve (21); the side wall of the fixed sleeve (21) is provided with a threaded hole, and the threaded hole is communicated with a through hole in the fixed sleeve (21); the adjusting screw (22) can penetrate through the threaded hole and is pressed against the outer wall of the outer sleeve (1).

6. A stop device for a spinal endoscope according to claim 5, characterized in that said outer ball (24) is provided with a first through hole (241) and a second through hole (242); the first through hole (241) and the second through hole (242) are communicated with a spherical cavity in the outer ball (24).

7. A stop device for a spinal endoscope according to claim 6, characterized in that said adjustment assembly (2) further comprises a support plate (25); the supporting disc (25) is sleeved on the outer ball (24) through a connecting hole.

8. A stop device for a spinal endoscope according to claim 7, characterized in that the aperture of both the first through hole (241) and the second through hole (242) is larger than the diameter of the channel (231).

9. A stop device for a spinal endoscope according to claim 8, characterized in that the overtube (1) can pass through the first through hole (241), the channel (231) and the second through hole (242) simultaneously.

10. A stop device for a spinal endoscope according to claim 9, characterized in that the centre line of the support plate (25) is located on the same line as the centres of the second through hole (242) and the second end face (233).