CN210871912U - Skin incision device for spinal minimally invasive surgery - Google Patents
Skin incision device for spinal minimally invasive surgery Download PDFInfo
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- CN210871912U CN210871912U CN201921484319.0U CN201921484319U CN210871912U CN 210871912 U CN210871912 U CN 210871912U CN 201921484319 U CN201921484319 U CN 201921484319U CN 210871912 U CN210871912 U CN 210871912U
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- blade
- sleeve
- head
- minimally invasive
- skin incision
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Abstract
The utility model discloses a skin incision device for spinal minimally invasive surgery, which comprises a sleeve for sleeving a guide pin externally and a blade detachably connected to the outer side of the sleeve, wherein the blade is obliquely arranged and is close to the head of the sleeve along the axial direction of the sleeve, and the blade is arranged on the outer side of the head of the sleeve after the blade is installed on the sleeve and extends to the outer side of the head of the sleeve and is propped against the outer circle of the guide pin; the utility model discloses the sleeve pipe overlaps on the ke shi needle along ke shi needle gliding sleeve pipe downwards, wherein the blade head supports at guide pin excircle and circumference lapse, the blade slides to puncture target point department and cuts skin, cut the incision and cross the puncture point, reach the effect that respectively cuts a sword in puncture point both sides promptly, cutting the in-process, blade stability is good, do not have handheld shake phenomenon, incision quality is good, incision depth easily controls, the blade is for dismantling connection structure, the maintenance of the blade of being convenient for is changed, can improve the application scope of cutting the ware.
Description
Technical Field
The utility model belongs to the technical field of the medical treatment, a backbone is skin incision ware for minimal access surgery is related to.
Background
The existing spine percutaneous endoscopic surgery depends on percutaneous puncture operation, after the puncture reaches a target point, the skin needs to be incised, a corresponding minimally invasive catheter and a corresponding channel are placed, and the incised skin is often incised along two sides of a guide pin once.
Therefore, in view of the above problems, there is a need for a minimally invasive spinal surgical skin incision device that can be used in combination with a guide pin such as a k-wire, and can make incisions on both sides of a puncture site guided by the k-wire, and that can provide a good incision quality and an easily controlled incision depth.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a spinal column is skin incision ware for minimal access surgery, this incision ware cooperation ke shi needle isotructure uses, through ke shi needle direction in puncture point both sides incision, this incision is of high quality, and the incision degree of depth is easily controlled.
The utility model discloses a spinal column is skin for minimal access surgery to open ware, including being used for the sleeve pipe of overcoat on the guide pin and can dismantling the blade of connecting in the sleeve pipe outside, the blade slope sets up and is close to the slope to the sleeve pipe head along the sleeve pipe axial, the blade is installed and is extended to the sleeve pipe head outside and support on the guide pin excircle in sleeve pipe back blade head.
Further, the sleeve is externally connected with a mounting table, the mounting table is provided with a mounting inclined plane for mounting the blade, the mounting inclined plane is close to the sleeve head along the axial direction of the sleeve, a clamping table is arranged on the mounting inclined plane, and a clamping groove used for being matched with the clamping table is formed in the blade.
Further, the clamping table is of a trapezoidal structure which gradually narrows from the tail portion of the sleeve to the head portion along the axial direction, the clamping groove is of a trapezoidal hole which gradually narrows from the tail portion of the blade to the head portion, the width of the narrow side of the clamping table is larger than that of the narrow side of the clamping groove, and the width of the wide side of the clamping table is smaller than that of the wide side of the clamping groove.
Furthermore, lateral clamping grooves which are parallel to the installation inclined plane and used for accommodating left and right blade walls in the clamping grooves are formed in the left and right side faces of the clamping table.
Further, the head of the sleeve is provided with a chamfer, and the inclined plane of the chamfer and the installation inclined plane are positioned in the same plane.
Furthermore, the tail part of the sleeve is connected with a pressing handle.
Furthermore, the inner diameter of the sleeve is 1.2-2.0mm, and the outer diameter of the sleeve is 2.5-3.5 mm.
Further, the width of the blade is 7-9 mm.
The utility model has the advantages that:
the utility model discloses the sleeve pipe overlaps on the ke shi needle along the downward slip sleeve pipe of ke shi needle, wherein the blade head supports at the guide pin excircle and circumference slides downwards, the blade slides to puncture target point department and opens and cuts skin, open the incision and cross the puncture point, reach the effect of cutting a sword respectively in puncture point both sides promptly, in the process of opening and cutting, the blade stability is good, does not have the shake phenomenon of handheld, the incision is of high quality, the incision depth is easily controlled, the blade is removable connection structure, the maintenance of the blade of being convenient for is changed, can improve the application scope of cutter;
the utility model discloses ka tai and draw-in groove play the effect of connecting the blade, and the installation inclined plane plays the effect to the blade direction, makes the blade slope along preset direction, guarantees the installation of blade fixed back through the inclination of controlling this installation inclined plane, and the head of blade supports at ke shi needle excircle, and the installation accuracy of blade can be guaranteed to this structure, makes the blade head slide along ke shi needle and carries out skin incision at the point of puncture, guarantees that the position of incision lies in the point of puncture both sides;
drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic view of the engagement structure of the cutter and the Kirschner wire;
FIG. 2 is a schematic view of a sleeve construction;
FIG. 3 is a schematic diagram of the right side view of FIG. 2;
FIG. 4 is a schematic view of a blade configuration;
Detailed Description
FIG. 1 is a schematic view of the engagement structure of the cutter and the Kirschner wire; FIG. 2 is a schematic view of a sleeve construction; FIG. 3 is a schematic diagram of the right side view of FIG. 2; FIG. 4 is a schematic view of a blade configuration;
as shown in the figure: the embodiment provides a skin incision device for spinal minimally invasive surgery, which comprises a sleeve 1 externally sleeved on a guide pin and a blade 2 detachably connected to the outer side of the sleeve, wherein the blade is obliquely arranged and is close to and inclined towards the head of the sleeve along the axial direction of the sleeve, and the blade is arranged on the outer side of the head of the sleeve after the blade extends to the outer side of the head of the sleeve and abuts against the excircle of the guide pin; the guide pin can utilize the existing kirschner wire, and can also be a special guide pin structure matched with the sleeve, the guide pin is preferably matched with the kirschner wire for use in the embodiment, when the guide pin is used, the blade is arranged outside the sleeve, the kirschner wire is abutted to the puncture target point, the sleeve is sleeved on the kirschner wire, the cutting direction of the blade is adjusted by rotating the sleeve, the sleeve slides downwards along the kirschner wire, the head of the blade is abutted to the excircle of the guide pin and slides downwards in the axial direction, the blade slides to the puncture target point to cut the skin, and the cut passes through the puncture point, so that the effect of cutting a knife on two sides of the puncture point is achieved.
In the embodiment, an installation table 3 is connected outside the sleeve, the installation table is provided with an installation inclined plane 3a for installing a blade, the installation inclined plane is inclined towards the head of the sleeve along the axial direction of the sleeve, a clamping table 4 is arranged on the installation inclined plane, and a clamping groove 5 matched with the clamping table is formed in the blade; it is shown in combination with fig. 2 to 4, draw-in groove card on the blade is on the ka tai, and the blade laminating is on installation inclined plane, ka tai and draw-in groove play the effect of connecting the blade, installation inclined plane plays the effect to the blade direction, make the blade along predetermineeing the direction slope, guarantee the blade at the fixed back of installation through the inclination on this installation inclined plane of control, the head of blade supports at the ke shi needle excircle, the installation accuracy of blade can be guaranteed to this structure, make the blade head slide along the ke needle and carry out skin incision at the puncture point, the position of guaranteeing to cut is located the puncture point both sides.
In this embodiment, the clamping table is in a trapezoidal structure gradually narrowing from the tail portion of the sleeve to the head portion along the axial direction, the clamping groove is in a trapezoidal hole gradually narrowing from the tail portion of the blade to the head portion, the width of the narrow side of the clamping table is greater than that of the narrow side of the clamping groove, and the width of the wide side of the clamping table is smaller than that of the wide side of the clamping groove; it is shown in the attached drawing that combines, the upper end of ka tai and draw-in groove is the narrow limit, the lower tip of ka tai and draw-in groove is the broadside, when the installation, the draw-in groove is on ka tai from broad position cover, then the axial stimulates the blade to the sleeve pipe afterbody, make the lateral wall of narrower position extrusion ka tai of draw-in groove reach the joint purpose, wherein the card platform is parallel with the inside wall of controlling of draw-in groove, make the left and right inside wall of ka tai and draw-in groove laminate each other and reach good joint effect, when the blade cutting, the blade receives the axial atress to sleeve pipe afterbody direction, this atress further guarantees that the blade chucking is on ka tai, improve the stability of blade, the middle and upper, lower, left and right.
In the embodiment, the left side surface and the right side surface of the clamping table are provided with lateral clamping grooves 4a which are parallel to the installation inclined surface and used for accommodating left and right blade walls in the clamping grooves; in the process of extruding the clamping groove and the clamping table, the blade is positioned on the left side wall and the right side wall of the clamping groove, the blade is clamped into the lateral clamping groove, the blade is effectively prevented from overturning, the stability of the blade is improved, the lateral clamping groove is attached to the installation inclined plane, namely the installation inclined plane is used as one side wall of the lateral clamping groove, and the structure can ensure that the blade is attached to the installation inclined plane.
In the embodiment, the head of the sleeve is provided with a chamfer 6, and the inclined plane of the chamfer and the installation inclined plane are positioned in the same plane; the blade is attached to the installation inclined plane and the chamfer inclined plane to form a good guide structure, and the chamfer can also form a scale standard line to be matched with the scale of the Kirschner wire so as to control the depth of the cut.
In the embodiment, the tail part of the sleeve is connected with a pressing handle 7; in this embodiment, the pressing handle is of an annular structure, which is convenient for holding down the pressing sleeve by hand, and of course, the pressing handle may also be of a butterfly structure, which is not specifically described;
in the embodiment, the inner diameter of the sleeve is 1.2-2.0mm, and the outer diameter of the sleeve is 2.5-3.5 mm; preferably, the outer diameter of the sleeve is 3mm, the inner diameter of the sleeve is preferably 1.2mm, 1.5mm or 2.0mm, and the inner diameter of the sleeve is matched with the outer diameter of the Kirschner wire;
the size of the sleeve is controlled to be convenient for being applied to minimally invasive surgery, the size of the sleeve is suitable for being applied to spinal minimally invasive surgery, and the interference of the sleeve on the sight can be effectively improved.
In the embodiment, the width of the blade is 7-9 mm; when the blade is installed on the sleeve, the width of the blade is the size perpendicular to the axial direction of the sleeve, the size is adapted to the incision size required by minimally invasive surgery, of course, the blade can be set to different sizes, different incision size requirements can be adapted by replacing blades of different sizes, and details are not specifically repeated.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. The utility model provides a spinal column is skin incision ware for minimal access surgery which characterized in that: including being used for the sleeve pipe of overcoat on the guide pin and can dismantling the blade of connecting in the sleeve pipe outside, the blade slope sets up and is close to the slope to the sleeve pipe head along the sleeve pipe axial, the blade is installed behind the sleeve pipe blade head extend to the sleeve pipe head outside and support on the guide pin excircle.
2. The skin incision device for minimally invasive spine surgery according to claim 1, characterized in that: the bushing is connected with the mounting table outside, the mounting table has the installation inclined plane that is used for installing the blade, the installation inclined plane is close to the slope to the bushing head along the bushing axial, be provided with the ka tai on the installation inclined plane, offer on the blade be used for with ka tai complex draw-in groove.
3. The skin incision device for minimally invasive spine surgery according to claim 2, characterized in that: the clamping table is of a trapezoidal structure which gradually narrows from the tail part of the sleeve to the head part along the axial direction, the clamping groove is of a trapezoidal hole which gradually narrows from the tail part of the blade to the head part, the width of the narrow side of the clamping table is larger than that of the narrow side of the clamping groove, and the width of the wide side of the clamping table is smaller than that of the wide side of the clamping groove.
4. The skin incision device for minimally invasive spine surgery according to claim 3, characterized in that: lateral clamping grooves which are parallel to the installation inclined plane and used for accommodating left and right blade walls in the clamping grooves are formed in the left and right side surfaces of the clamping table.
5. The skin incision device for minimally invasive spine surgery according to claim 2, characterized in that: the head of the sleeve is provided with a chamfer, and the inclined plane of the chamfer and the installation inclined plane are positioned in the same plane.
6. The skin incision device for minimally invasive spine surgery according to claim 1, characterized in that: the tail part of the sleeve is connected with a pressing handle.
7. The skin incision device for minimally invasive spine surgery according to claim 1, characterized in that: the inner diameter of the sleeve is 1.2-2.0mm, and the outer diameter of the sleeve is 2.5-3.5 mm.
8. The skin incision device for minimally invasive spine surgery according to claim 1, characterized in that: the width of the blade is 7-9 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921484319.0U CN210871912U (en) | 2019-09-05 | 2019-09-05 | Skin incision device for spinal minimally invasive surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921484319.0U CN210871912U (en) | 2019-09-05 | 2019-09-05 | Skin incision device for spinal minimally invasive surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210871912U true CN210871912U (en) | 2020-06-30 |
Family
ID=71331997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921484319.0U Active CN210871912U (en) | 2019-09-05 | 2019-09-05 | Skin incision device for spinal minimally invasive surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210871912U (en) |
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2019
- 2019-09-05 CN CN201921484319.0U patent/CN210871912U/en active Active
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