CN209951335U

CN209951335U - A visual power trepan outside mirror for intervertebral foramen mirror operation

Info

Publication number: CN209951335U
Application number: CN201920125719.6U
Authority: CN
Inventors: 李克乾
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-01-17
Anticipated expiration: 2029-01-24

Abstract

The utility model discloses a visual power trepan outside mirror for intervertebral foramen mirror operation, including first sleeve pipe and suit at the trepan sleeve pipe in first sleeve pipe, trepan sleeve pipe lower extreme sawtooth stretches out first sleeve pipe, its characterized in that: the trepan sleeve pipe passes through the bearing and connects in first sleeve pipe inner wall, and first sleeve pipe top is provided with driving system, and driving system includes casing, the fixed low-speed motor that is located the casing and controls the switch of operation is opened and close to the low-speed motor, casing and first sleeve pipe fixed connection to be provided with the through-hole coaxial with the trepan sleeve pipe at the casing, the trepan sleeve pipe stretches into in the casing, and stretch into the fixed round of connecting gear of part external diameter, connecting gear links together with the transmission gear tooth meshing of low-speed motor output shaft. Accessible motor drives the trepan and rotates and polish to the bone, effectually polishes to the bone under laborsaving condition, and effectual doctor's working strength that has alleviateed has also guaranteed patient's safety simultaneously.

Description

A visual power trepan outside mirror for intervertebral foramen mirror operation

Technical Field

The utility model relates to the field of medical equipment, in particular to an off-scope visual power trepan for intervertebral foramen mirror operation.

Background

Compared with the traditional operation mode, the intervertebral foramen mirror operation has small wound and fast recovery, and is more and more widely applied. The intervertebral foramen operation is to expand intervertebral foramen through stepwise expansion, place the working channel in the protuberant part of nucleus pulposus, and then remove the protuberant part with various types of nucleus pulposus pincers under the monitoring of endoscope to directly relieve the compression. When the hole mirror is in place, a surgical tool needs to be matched and used. Trephines are necessary tools for intervertebral aperture surgery, and existing visual trephines are non-powered hand-operated tools. Rely on doctor's hand accuse direction and rotatory cutting dynamics, doctor uses the dynamics undersize, cuts inefficiency, and the dynamics of using is too big, damages nervous when the cutting finishes. And in the operation, because the doctor needs to use the trepan for rotary cutting for a long time, both hands are easy to be tired, the rotary cutting strength is difficult to control under the condition of the fatigue of both hands, and the injury is brought to the patient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide an automatic visual power trepan outside the endoscope for the intervertebral foramen mirror operation.

In order to achieve the above purpose, the utility model discloses a technical scheme is: including first sleeve pipe and suit at the intraductal trepan sleeve pipe of first sleeve, trepan sleeve pipe lower extreme sawtooth stretches out first sleeve pipe, its characterized in that: the trepan sleeve pipe pass through the bearing connect in first sleeve pipe inner wall, first sleeve pipe top is provided with driving system, driving system includes casing, the fixed low-speed motor that is located the casing and control the switch of low-speed motor start-stop operation, the casing with first sleeve pipe fixed connection is provided with and says that the coaxial through-hole of trepan sleeve pipe, the trepan sleeve pipe stretches into in the casing, and stretch into the fixed round of connection gear of part external diameter, connection gear with the transmission gear tooth meshing of low-speed motor output shaft links together.

The utility model has the advantages that the trepan sleeve is driven to rotate by the motor through the transmission gear and the connecting gear; the trepan sleeve pipe passes through bearing and first sleeve pipe inner wall connection, and first sleeve pipe and driving system casing fixed connection make the trepan sleeve pipe can stabilize and rotate in first sleeve pipe, make this device can effectually polish solid head under the circumstances of laborsaving, efficient, the degree of safety is good.

Preferably, the first sleeve pipe outside sliding arrangement has the second sleeve pipe, second sleeve pipe bilateral symmetry is provided with the miniature screw that is used for fixed second sleeve pipe and first sleeve pipe. The depth can be adjusted by sliding the second sleeve up and down, and the depth can be fixed by a minisize screw.

Preferably, the surface of the first sleeve is provided with scale identification lines which can display the cutting depth of the trepan.

Preferably, the bearing is a double-row ball bearing, and at least two bearings are arranged between the first sleeve and the trepan sleeve, so that the structure is more stable, and the rotation is more continuous.

Preferably, the first sleeve and the shell can be fixed by welding, so that the structure is more stable.

Preferably, the length of the trepan sleeve is greater than the total length that the first and second sleeves can be stretched, ensuring that the serrated end of the trepan sleeve protrudes.

Preferably, a rotary sealing ring is arranged between the inner wall of the bottom of the first sleeve and the outer wall of the trepan sleeve, so that the first sleeve is in sealing fit with the trepan sleeve.

Preferably, the trephine further comprises a protective sleeve matched with the trephine sleeve, wherein the protective sleeve is a hollow pipeline which can be inserted into the trephine sleeve; one end of the protective sleeve is a duckbill-shaped opening, and the other end of the protective sleeve is provided with a stop plate which can be abutted against the second sleeve.

Drawings

FIG. 1 is a cross-sectional view of an extra-scope visual power ring saw for use in an intra-foraminal endoscopic procedure according to this embodiment.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the attached drawing 1, the visual power trepan outside the endoscope for the intervertebral foramen endoscopic surgery comprises a first sleeve 1 and a trepan sleeve 2 sleeved in the first sleeve 1, wherein the sawtooth end of the trepan sleeve 2 extends out of the first sleeve 1, the trepan sleeve 2 is connected to the inner wall of the first sleeve 1 through a bearing 3, and the bearing 3 is a double-layer ball bearing. The top of the first casing 1 is provided with a power system, the power system comprises a housing 41, a low-speed motor 42 fixedly positioned in the housing 41, and a switch 43 for controlling the low-speed motor 42 to start and stop, and the low-speed motor 42 is connected with a power line connected with an external power supply. The shell 41 is fixedly connected with the first sleeve 1 and is welded and fixed, and stability is improved. The housing 41 is provided with a through hole 44 coaxial with the trepan cannula 2, and is communicated with the trepan cannula 2 to form an intervertebral aperture channel. The top end of the trepan casing 2 extends into the shell 41, a circle of connecting gear 5 is fixed on the outer diameter of the extending part, and the connecting gear 5 and the trepan casing 2 can be integrally formed. The output shaft of the low-speed motor 42 is connected with a transmission gear 6, the connecting gear 5 and the transmission gear are both bevel gears, and the two gears are meshed and connected together at an angle of ninety degrees to drive the trepan casing 2 to rotate. A rotary sealing ring 11 is arranged between the inner wall of the bottom of the first sleeve 1 and the outer wall of the trepan sleeve 2, so that the first sleeve 1 is in sealing fit with the trepan sleeve 2.

The second sleeve 8 is arranged on the outer side of the first sleeve 1 in a sliding mode, the scale mark lines 7 for mastering the length are arranged on the surface of the first sleeve 1, and the second sleeve 8 slides to different positions outside the first sleeve 1 and corresponds to different scale marks. Miniature screws 9 are symmetrically arranged on two sides of the second sleeve 8, the miniature screws 9 are loosened to enable the second sleeve 8 to slide, and the miniature screws 9 are locked to clamp the second sleeve 8. The cooperation of the first sleeve 1 and the second sleeve 8 with the scale indication line 7 ensures that the operation is more accurate.

The length of the trepan sleeve 2 is greater than the total length of the first sleeve 1 and the second sleeve 8 which can be stretched.

A powered trepan for use in an intervertebral aperture procedure is used in conjunction with a protective sleeve 10, the protective sleeve 10 being a hollow conduit into which a trepan cannula 2 may be inserted. One end of the protective sleeve 10 is provided with a duckbill-shaped opening 101, so that the sawtooth end of the circular saw sleeve 2 can be separated from the tail nerve tissue of the intervertebral foramen, and the nerve tissue around the intervertebral foramen is protected from being stimulated and damaged by sawteeth; the other end is provided with a stop plate 102 against which the second sleeve 8 can be placed to alert the operator that the cut has been made to the specified depth.

When the puncture needle is used in the embodiment, after a puncture point of a patient is positioned, the protective sleeve 10 is rotated to enter the vertebral canal, the duckbilled opening 101 isolates the tail nerve tissue of the intervertebral foramen, the foramen intervertebrale lens is guided into the position, and an operator fixes the protective sleeve 10 extending out of the human body. The second sleeve 8 slides to a required scale position, is locked through the miniature screw 9, is vertically inserted into the protected sleeve 10, the sawtooth end of the trepan sleeve 2 props against a bone, the switch of the power system 4 is turned on, the trepan sleeve 2 rotates to polish the bone, and is pressed down under the action of an operator until the second sleeve 8 props against the protected sleeve 10, so that the preset depth is ensured to be cut.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a visual power trepan outside mirror for intervertebral foramen mirror operation, includes first sleeve pipe (1) and suit trepan sleeve pipe (2) in first sleeve pipe (1), trepan sleeve pipe (2) sawtooth end stretches out first sleeve pipe (1), its characterized in that: trepan sleeve pipe (2) pass through bearing (3) connect in first sleeve pipe (1) inner wall, first sleeve pipe (1) top is provided with driving system, driving system includes casing (41), fixed low-speed motor (42) that are located casing (41) and control low-speed motor (42) open and close switch (43) of operation, casing (41) with first sleeve pipe (1) fixed connection, casing (41) are provided with and say circular saw sleeve pipe (2) coaxial through-hole (44), circular saw sleeve pipe (2) stretch into in casing (41), and stretch into the fixed round of connecting gear (5) of part external diameter, connecting gear (5) with drive gear (6) tooth engagement of low-speed motor (42) output shaft is connected together.

2. An extrascope visual power trephine for use in transforaminal surgery as recited in claim 1, wherein: the outer side of the first sleeve (1) is provided with a second sleeve (8) in a sliding mode, and miniature screws (9) used for fixing the first sleeve (1) and the second sleeve (8) are symmetrically arranged on two sides of the second sleeve (8).

3. An extrascope visual power trephine for use in transforaminal surgery as recited in claim 2, wherein: the surface of the first sleeve (1) is provided with scale mark lines (7).

4. An extrascope visual power trephine for use in transforaminal surgery as recited in claim 1, wherein: the bearing (3) is a double-row ball bearing, and at least two bearings are arranged between the first sleeve (1) and the trepan sleeve (2).

5. An extrascope visual power trephine for use in transforaminal surgery as recited in claim 1, wherein: the first sleeve (1) and the shell (41) are fixed in a welding mode.

6. An extrascope visual power trephine for use in transforaminal surgery as recited in claim 1, wherein: the length of the trepan sleeve (2) is larger than the total length of the first sleeve (1) and the second sleeve (8) which can be stretched.

7. An extrascope visual power trephine for use in transforaminal surgery as recited in claim 1, wherein: a rotary sealing ring (11) is arranged between the inner wall of the bottom of the first sleeve (1) and the outer wall of the trepan sleeve (2).

8. An extrascope visual power trephine for use in transforaminal surgery as recited in claim 1, wherein: the trepan sheath is characterized by further comprising a protective sleeve matched with the trepan sheath, wherein the protective sleeve (10) is provided with a hollow pipeline for inserting the trepan sheath (2); one end of the protective sleeve (10) is provided with a duckbill-shaped opening (101), and the other end of the protective sleeve is provided with a stop plate (102) which can be abutted against the second sleeve (8).