CN217186340U - Surgical incision knife for dura mater - Google Patents
Surgical incision knife for dura mater Download PDFInfo
- Publication number
- CN217186340U CN217186340U CN202221087325.4U CN202221087325U CN217186340U CN 217186340 U CN217186340 U CN 217186340U CN 202221087325 U CN202221087325 U CN 202221087325U CN 217186340 U CN217186340 U CN 217186340U
- Authority
- CN
- China
- Prior art keywords
- handle
- scalpel
- knife
- dura mater
- upper protrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000001951 dura mater Anatomy 0.000 title claims abstract description 44
- 208000002847 Surgical Wound Diseases 0.000 title claims abstract description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 4
- 239000010935 stainless steel Substances 0.000 claims abstract description 4
- 210000003710 cerebral cortex Anatomy 0.000 abstract description 22
- 210000004204 blood vessel Anatomy 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 4
- 241000282376 Panthera tigris Species 0.000 description 9
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 210000003625 skull Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000009510 cerebral cortex damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 230000003966 vascular damage Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Surgical Instruments (AREA)
Abstract
The utility model provides a surgical incision sword for dura mater, include: the cutter handle, the upper protrusion and the cutter head; the knife handle is arranged at the rear part of the scalpel body; the upper protrusion is arranged at the lower part of the front side surface of the knife handle, and the front end of the upper protrusion is slightly tilted upwards; the scalpel head is arranged at the bottom of the scalpel body, and the rear end of the scalpel head is connected with the front side of the lower end of the scalpel body. The knife handle is of a regular hexagonal structure made of stainless steel, one third of the knife handle is a particle rough surface, the rest of the knife handle is a sliding surface, and an angle is formed between the handle and the axis of the knife edge; a cutting edge is arranged between the lower end surface of the upper protrusion and the front side surface of the scalpel body. The utility model discloses the structure sets up rationally, conveniently is used for the dura mater operation to open the dura mater behind the parallel to cerebral cortex, because knife tip and blade both sides all set to smooth blunt face, can avoid haring cerebral cortex or blood vessel, easy to use, safe and easy going.
Description
Technical Field
The utility model relates to a medical instrument technical field of neurology department, concretely relates to operation incision sword for dura mater.
Background
Opening the dura mater is an essential step in neurosurgery, dura mater incision is one of the routine operations of neurosurgery, and the routine dura mater opening process is as follows: after the skull bone flap is removed, the dura mater tightly stops bleeding, a little dura mater is firstly cut to the lower layer of the dura mater by a sharp knife along the cutting range of the needed dura mater, and then the dura mater is cut at the cutting position of the dura mater by using a dura mater cutter, so that the cerebral cortex or lesion is exposed. In the process of cutting the dura mater, the scissors are required to be parallel to the cerebral cortex, and if the scissors face and the cerebral cortex form an angle for operation, the injury of the cerebral cortex is inevitably caused; in addition, in the process of cutting the dura mater, the scissors are tightly pasted on the cerebral cortex, and if the blood vessels on the surface of the cerebral cortex are adhered to the dura mater, the blood vessels on the surface of the cerebral cortex are often damaged.
In clinical work, along with the requirement of minimally invasive surgery, the requirement of the range of the bone window is accurate, the range of the bone window is smaller, especially in under-curtain surgery, the surgical field is deeper, the scissors in the prior art are extremely inconvenient to use, the scissors can not be parallel to the cerebral cortex to cut the dura mater, and the injury of the cerebral cortex or blood vessels is easily caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, a surgical incision knife for dura mater is provided so as to solve the problem that the use of scissors in the prior art is very inconvenient, and the scissors can not be parallel to the cerebral cortex to incise the dura mater and easily cause the injury of the cerebral cortex or blood vessels.
To achieve the above object, there is provided a surgical incision knife for dura mater, comprising: the cutter handle, the upper protrusion and the cutter head;
the scalpel handle is arranged at the rear part of the scalpel body;
the upper protrusion is arranged at the lower part of the front side surface of the cutter handle, and the front end of the upper protrusion is slightly tilted upwards;
the scalpel comprises a scalpel body, a scalpel head and a scalpel handle, wherein the scalpel head is arranged at the bottom of the scalpel body, and the rear end of the scalpel head is connected with the front side of the lower end of the scalpel body.
Further, the handle of a knife chooses stainless steel's regular hexagon body structure for use, and the height of handle of a knife sets up to 15cm to the cross section width of handle of a knife sets up to 0.3 cm.
Furthermore, an upper notch is formed between the upper end face of the upper protrusion and the front side face of the cutter handle, the length of the upper protrusion is set to be 0.2cm, and the thickness of the upper protrusion is set to be 0.1 cm.
Furthermore, a cutting edge is arranged between the upper convex lower end face and the front side face of the scalpel body, and the cutting edge is of a circular arc-shaped inner concave cutting edge structure.
Furthermore, the length of the cutter head is set to be 0.5cm, a cutter point is arranged at the front end of the cutter head, and the front end of the cutter point is tilted up by 15 degrees.
Furthermore, one third of the knife handle is a particle rough surface, the rest part of the knife handle is a smooth surface, and an angle is formed between the handle and the axis of the knife edge.
The beneficial effects of the utility model reside in that:
1. the utility model discloses the middle part of well handle of a knife is the granule matte, is difficult for sliding when handheld, uses more safe and reliable.
2. The utility model discloses the upper surface middle section of well tool bit swells gradually and forms tiger's mouth shape, and the uplift part inwards receives and forms tiger's mouth deep sharp cutting edge, and the cutting edge continues to move for tiger's mouth head, for slightly widening the sharp protection zone of non-, and the thin slice and the handle of a knife fixed connection at tiger's mouth district and rear help along cutting dura mater scope direction, impels the tool bit forward, opens the dura mater with inboard sharp cutting edge again, uses more easily and easily.
3. The utility model discloses the whole size of well tool bit is about 1cm 0.5cm 0.1 cm's slice, and the knife tip that the tool bit front end set up is 15 degrees blunt mouthful of arc that sticks up, makes it slide easily in the front, can not cause the incised wound to cerebral cortex or blood vessel, uses safe and reliable.
Drawings
Fig. 1 is a schematic front view of an embodiment of the present invention;
fig. 2 is a left side view of the embodiment of the present invention;
fig. 3 is a schematic top view of an embodiment of the present invention;
fig. 4 is a schematic cross-sectional structure diagram of an embodiment of the present invention.
In the figure: 1. a scalpel body; 10. a knife handle; 11. an upper recess; 12. the upper part is convex; 13. a blade; 14. A cutter head; 15. a knife tip.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Fig. 1 is the utility model discloses front view schematic diagram, fig. 2 are the utility model discloses a left side view schematic diagram, fig. 3 do the utility model discloses a overlook the schematic diagram and fig. 4 do the utility model discloses a section structure schematic diagram.
Referring to fig. 1 to 4, the present invention provides a scalpel for dura mater, including: a shank 10, an upper projection 12 and a cutting head 14; the knife handle 10 is arranged at the rear part of the scalpel body 1; the upper protrusion 12 is arranged on the lower portion of the front side face of the knife handle 10, the front end of the upper protrusion 12 is arranged to slightly tilt upwards, the knife head 14 is arranged at the bottom of the scalpel body 1, and the rear end of the knife head 14 is connected with the front side of the lower end of the scalpel body 1.
In this embodiment, the tool holder 10 is made of a stainless steel hexagonal structure, the height of the tool holder 10 is set to be 15cm, and the width of the cross section of the tool holder 10 is set to be 0.3 cm; one third of the handle 10 presents a particle rough surface and the rest presents a smooth surface, and an angle of 90 degrees is presented between the handle and the axis of the blade.
As a preferred implementation mode, the middle part of the middle knife handle 10 of the utility model is a rough surface with particles, which is not easy to slide when being held by hand and is safer and more reliable in use.
In the embodiment, an upper notch 11 is arranged between the upper end face of the upper protrusion 12 and the front side face of the tool holder 10, the length of the upper protrusion 12 is set to be 0.2cm, and the thickness of the upper protrusion 12 is set to be 0.1 cm; a cutting edge 13 is arranged between the lower end surface of the upper protrusion 12 and the front side surface of the scalpel body 1, and the cutting edge 13 adopts a circular arc inner concave cutting edge structure.
As a preferred implementation mode, the utility model discloses well tool bit 14's upper surface middle section is uplifted gradually and is formed tiger's mouth shape, and the uplift part inwards receives and forms tiger's mouth deep sharp cutting edge, and the cutting edge continues to move for tiger's mouth head, for slightly widening non-sharp protection zone, the thin slice and the handle of a knife fixed connection at tiger's mouth district and rear help along cutting dura mater scope direction, impels the tool bit forward, cuts the dura mater with inboard sharp cutting edge again, uses more easily and easily.
In the present embodiment, the length of the tool bit 14 is set to 0.5cm, and the front end of the tool bit 14 is provided with the cutting edge 15, and the front end of the cutting edge 15 is tilted up by 15 degrees.
As a preferred embodiment, the utility model discloses well tool bit 14's whole size is about 1cm 0.5cm 0.1cm slice, and tool tip 15 that tool bit 14 front end set up is 15 degrees blunt mouthful of arc of upwarping, makes it can slide easily in the forward, can not cause the incised wound to cerebral cortex or blood vessel, uses safe and reliable.
The utility model discloses can effectively solve the use of prior art's scissors and be very inconvenient, it often can't be on a parallel with cerebral cortex and open the dura mater, causes the problem of cerebral cortex or vascular damage easily, the utility model discloses the structure sets up rationally, conveniently is used for dura mater operation to use to open the dura mater behind the cerebral cortex in a parallel with, because knife tip and blade both sides all set to smooth blunt face, can avoid damaging cerebral cortex or blood vessel, easy to use, safe and easy going.
In the use process, the handle is held by hand, the blunt cutter head is inserted into the dural incision point, so that the dura mater is clamped by the 'tiger mouth area', and meanwhile, the dura mater is slightly lifted, so that the dura mater and the cerebral cortex are dissociated; then, the knife head is pushed forward along the range of the dura mater to cut the dura mater with a sharp edge. In the process, due to the existence of the inactive region of the cutter head, the dura mater can be separated from the cerebral cortex, and the cerebral cortex and the vascular structure can be prevented from being accidentally injured; in the deep operation visual field area, the knife handle and the knife head are 90 degrees, so that the knife handle is not blocked by the skin and the skull structure, and the dura mater can be cut more conveniently and safely.
Claims (6)
1. A surgical incision knife for the dura mater, comprising: the tool comprises a tool handle (10), an upper protrusion (12) and a tool bit (14);
the scalpel comprises a scalpel handle (10) arranged at the rear part of a scalpel body (1);
the upper protrusion (12) is arranged at the lower part of the front side surface of the knife handle (10), and the front end of the upper protrusion (12) is slightly tilted upwards;
the scalpel comprises a scalpel head (14) arranged at the bottom of a scalpel body (1), wherein the rear end of the scalpel head (14) is connected with the front side of the lower end of the scalpel body (1).
2. The scalpel for dura mater according to claim 1, wherein the handle (10) is made of stainless steel and has a regular hexagon structure, the height of the handle (10) is set to be 15cm, and the width of the cross section of the handle (10) is set to be 0.3 cm.
3. A surgical incision knife for dura mater according to claim 1, characterized in that an upper recess (11) is provided between the upper end surface of the upper protrusion (12) and the front side surface of the handle (10), and the length of the upper protrusion (12) is set to 0.2cm, and the thickness of the upper protrusion (12) is set to 0.1 cm.
4. The scalpel for dura mater according to claim 1, wherein a blade (13) is disposed between the lower end surface of the upper protrusion (12) and the front side surface of the scalpel body (1), and the blade (13) has an arc-shaped inner concave blade structure.
5. The surgical incision knife for dura mater according to claim 1, wherein the length of the knife head (14) is set to 0.5cm, the front end of the knife head (14) is provided with a knife tip (15), and the front end of the knife tip (15) is tilted up by 15 degrees.
6. A surgical incision knife for dura mater according to claim 1, characterized in that one third of the handle (10) presents a grain-roughened surface and the rest presents a smooth surface, and that the handle presents a 90 ° angle to the blade axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221087325.4U CN217186340U (en) | 2022-05-07 | 2022-05-07 | Surgical incision knife for dura mater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221087325.4U CN217186340U (en) | 2022-05-07 | 2022-05-07 | Surgical incision knife for dura mater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217186340U true CN217186340U (en) | 2022-08-16 |
Family
ID=82778928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221087325.4U Expired - Fee Related CN217186340U (en) | 2022-05-07 | 2022-05-07 | Surgical incision knife for dura mater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217186340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024072839A1 (en) * | 2022-09-29 | 2024-04-04 | The Government Of The United States, As Represented By The Secretary Of The Army | Surgical device for cutting tissue |
-
2022
- 2022-05-07 CN CN202221087325.4U patent/CN217186340U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024072839A1 (en) * | 2022-09-29 | 2024-04-04 | The Government Of The United States, As Represented By The Secretary Of The Army | Surgical device for cutting tissue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220816 |