CN215458445U

CN215458445U - Novel scalpel is used in UBE art

Info

Publication number: CN215458445U
Application number: CN202121409109.2U
Authority: CN
Inventors: 李鹏; 侯秀伟; 胡军华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-01-11
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a novel scalpel used in UBE operation, which relates to the technical field of medical instruments and comprises a scalpel head, an inner scalpel handle and a scabbard, wherein the scalpel head is a slender blade, and the tail end of the scalpel head is provided with two plug-in sticks; the inner cutter handle is a flat and long strip, a cutter head slot is formed in the lower end of the inner cutter handle, the tail end of the cutter head is inserted into the cutter head slot and fixed, a threaded column is fixed on the side surface of the inner cutter handle, and a knob nut is arranged on the threaded column; the sheath is a hollow flat sheath, a sliding groove is formed in the side face of the sheath, the inner knife handle slides in the sheath, and the threaded column slides in the sliding groove. The scalpel head is carried by the inner scalpel handle to slide on the scalpel sheath, so that the scalpel sheath is in contact with the side wall of the operation hole, and the cutting edge of the scalpel head is prevented from being damaged.

Description

Novel scalpel is used in UBE art

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a novel scalpel used in UBE operation.

Background

The UBE technology is an abbreviation for single-sided dual channel endoscopic technology. It uses two channels, one is endoscope channel and the other is operation channel. This is the greatest difference from the single pass technique of foraminoscopy. The UBE technology is a spinal minimally invasive endoscope technology. Is mainly used for endoscopic minimally invasive treatment of cervical spondylosis, thoracic vertebra diseases and lumbar degenerative diseases. Because of the use of two channels, the instrumentation is not limited by size, and UBE is the most efficient technique among the various minimally invasive techniques of the spine. Except for the conventional various types of disc herniation cases, the device is particularly suitable for endoscopic minimally invasive treatment of complex cases such as complex disc herniation, spinal canal stenosis, lumbar spondylolisthesis, radiculocervical spondylosis, myelotype cervical spondylosis, thoracic spinal canal stenosis, spinal column revision cases and the like. The operation is more thorough and the curative effect is positive as the open operation. The only difference is that the wound is smaller and the recovery is faster. The scalpel is required to be operated in a slender hole, the existing scalpel is of a structure of a blade clamp handle, the blade edge is long, and when the scalpel enters and exits the surgical hole, the blade edge can accidentally scratch peripheral nerves and tissues to cause unplanned injury.

In summary, the technical problems to be solved by the present invention are:

when an existing scalpel is used for UBE operation, the scalpel easily scratches nerve tissues around an operation hole, and the problem of unplanned injury is caused.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a novel scalpel for UBE operation, which solves the problems in the background technology.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a novel scalpel used in UBE operation is characterized in that: the knife comprises a knife head, an inner knife handle and a knife sheath, wherein the knife head is a slender knife blade, and two inserting rods are arranged at the tail end of the knife head; the inner cutter handle is a flat and long strip, a cutter head slot is formed in the lower end of the inner cutter handle, the tail end of the cutter head is inserted into the cutter head slot and fixed, a threaded column is fixed on the side surface of the inner cutter handle, and a knob nut is arranged on the threaded column; the sheath is a hollow flat sheath, a sliding groove is formed in the side face of the sheath, the inner knife handle slides in the sheath, and the threaded column slides in the sliding groove.

Preferably, the front end of the tool bit slot is in the shape of the tail end of the tool bit, and the rear end of the tool bit slot is provided with two slots for accommodating the plunger of the tool bit.

Preferably, the sliding groove edge of the sheath is provided with a cutter head length scale, and the lower end of the sheath is provided with a depth scale.

Preferably, one small grid of the length scale of the cutter head is 1mm, the other large grid of the length scale of the cutter head is 5mm, and when the threaded column is aligned with the scale mark 0, the cutter head just retracts into the sheath completely; the scale of the length of the tool bit increases from the scale mark 0 to the lower part.

Preferably, the 0 scale mark of the depth scale coincides with the edge of the lower end of the sheath, the scale is increased upwards, one small grid of the scale is 1mm, and the other large grid of the scale is 5 mm.

Preferably, the outer edge of the sheath is rounded.

The utility model provides a novel scalpel used in UBE operation, which has the following beneficial effects:

1. the novel scalpel is used in the UBE operation, the insert rod of the scalpel head and the scalpel head slot of the inner scalpel handle are combined firmly, the scalpel head can be replaced, and only the scalpel head needs to be replaced after the scalpel head is stopped or damaged, so that the whole scalpel is prevented from being discarded and wasted;

2. this novel use scalpel in UBE art, through interior handle of a knife slip among the sheath, knob nut adjustment damping makes interior handle of a knife activity or fixed for the sheath, is carved with degree of depth scale and tool bit length scale on the sheath simultaneously, and the degree of depth in accessible operation hole adjusts the scope of sheath parcel tool bit, and tool bit length scale deepens the degree of depth that the scale equals the scalpel and gets into operation hole, avoids the scalpel to advance to cut into and damage patient's lumbar vertebrae too deeply. The knife sheath processed by the fillet can separate the side wall tissue of the operation hole from the cutting edge, thereby achieving the purpose of avoiding the occurrence of unplanned injuries.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present tool tip;

FIG. 3 is a side view of the inner handle;

FIG. 4 is a cross-sectional view of the inner handle;

FIG. 5 is a front view of the sheath;

in the figure: the tool bit comprises a tool bit 1, an inner tool shank 2, a sheath 3, a plunger 4, a tool bit slot 5, a threaded column 6, a knob nut 7, a sliding groove 8, tool bit length scales 9 and depth scales 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a novel scalpel used in UBE operation comprises a scalpel head 1, an inner scalpel handle 2 and a scabbard 3, wherein the scalpel head 1 is a slender blade, and two inserting rods 4 are arranged at the tail end; interior handle of a knife 2 is flat rectangular, and the lower extreme has tool bit slot 5, the front end of tool bit slot 5 is the shape of 1 tail ends of tool bit, and the rear end has two grooves, holds the inserted bar 4 of tool bit 1, inserted bar 4 and. The tail end of the tool bit 1 is inserted into the tool bit slot 5 and fixed, a threaded column 6 is fixed on the side surface of the inner tool shank 2, a knob nut 7 is configured on the threaded column 6, and the damping of the inner tool shank 2 and the sheath 3 is adjusted through the knob nut 7, so that the inner tool shank 2 slides or is fixed relative to the sheath 3; the sheath 3 is a hollow flat sheath, a sliding groove 8 is formed in the side face of the sheath 3, the inner knife handle 2 slides in the sheath 3, and the threaded column 6 slides in the sliding groove 8. The edge of the sliding groove 8 of the sheath 3 is provided with a tool bit length scale 9, and the lower end of the sheath 3 is provided with a depth scale 10; when the threaded column 6 is aligned with the scale mark 0, the tool bit 1 just retracts into the sheath 3 completely; the scale 9 of the length of the tool bit is increased from the scale mark 0 to the lower part; the 0 scale mark of degree of depth scale 10 and the coincidence of sheath 3 lower extreme edge, the scale upwards increases progressively, and a little check of scale is 1mm, and a big check is 5mm, and degree of depth scale 10 and tool bit length scale 9, the degree of depth of accessible operation hole adjust the scope of sheath 3 parcel tool bit 1, and tool bit length scale 9 deepens degree scale 10 and equals the degree of depth that the scalpel got into the operation hole, avoids the scalpel to cut into the too deep injury patient lumbar vertebrae. The knife sheath 3 processed by the round angle can separate the side wall tissue and the cutting edge of the operation hole when the knife head 1 processes the lumbar intervertebral disc, thereby achieving the purpose of avoiding the occurrence of unplanned injury. The outer edge of the sheath 3 is processed by a fillet, so that the cutting edge can be effectively prevented from injuring the nerve tissue on the side wall of the hole when the scalpel is operated in the hole.

To sum up, when the novel UBE operation scalpel is used, the length of the sheath 3 extending from the scalpel head 1 is firstly adjusted according to the depth of the operation hole, so that the sheath 3 can just be arranged between the cutting edge and the side wall of the operation hole when the scalpel head 1 cleans the lumbar intervertebral disc, and the scalpel 3 prevents the cutting edge from directly scratching the nerve tissue on the side wall of the operation hole in the operation; knob nut 7 adjustment damping makes interior handle of a knife 2 for sheath 3 activity or fixed, is carved with degree of depth scale 10 and tool bit length scale 9 on sheath 3 simultaneously, and the degree of depth in accessible operation hole adjusts the scope of sheath 3 parcel tool bit 1, and tool bit length scale 9 deepens degree of depth scale 10 and equals the depth that the scalpel got into the operation hole, avoids the scalpel to cut into the too deep injury patient lumbar vertebrae.

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 person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A novel scalpel used in UBE operation is characterized in that: the knife comprises a knife head, an inner knife handle and a knife sheath, wherein the knife head is a slender knife blade, and two inserting rods are arranged at the tail end of the knife head; the inner cutter handle is a flat and long strip, a cutter head slot is formed in the lower end of the inner cutter handle, the tail end of the cutter head is inserted into the cutter head slot and fixed, a threaded column is fixed on the side surface of the inner cutter handle, and a knob nut is arranged on the threaded column; the sheath is a hollow flat sheath, a sliding groove is formed in the side face of the sheath, the inner knife handle slides in the sheath, and the threaded column slides in the sliding groove.

2. The novel scalpel for use in UBE surgery as defined in claim 1, further comprising: the front end of the tool bit slot is in the shape of the tail end of the tool bit, and the rear end of the tool bit slot is provided with two slots for accommodating the plunger of the tool bit.

3. The novel scalpel for use in UBE surgery as defined in claim 1, further comprising: the edge of the sliding groove of the sheath is provided with a scale for the length of the tool bit, and the lower end of the sheath is provided with a scale for the depth.

4. A novel scalpel for use in UBE surgery as claimed in claim 3 wherein: when the threaded column is aligned with the scale mark 0, the tool bit 1 just retracts into the sheath completely; the scale of the length of the tool bit increases from the scale mark 0 to the lower part.

5. A novel scalpel for use in UBE surgery as claimed in claim 3 wherein: the scale line 0 of the depth scale coincides with the edge of the lower end of the sheath, the scale is increased in an upward mode, one small grid of the scale is 1mm, and the other large grid of the scale is 5 mm.

6. The novel scalpel for use in UBE surgery as defined in claim 1, further comprising: the outer edge of the sheath is rounded.