CN211484808U - Protective medical scalpel - Google Patents
Protective medical scalpel Download PDFInfo
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- CN211484808U CN211484808U CN201921709245.6U CN201921709245U CN211484808U CN 211484808 U CN211484808 U CN 211484808U CN 201921709245 U CN201921709245 U CN 201921709245U CN 211484808 U CN211484808 U CN 211484808U
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- protective
- cutter
- stop position
- scalpel
- handle
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Abstract
The utility model discloses a protective medical scalpel, which comprises a scalpel body and a protective component, wherein the scalpel body comprises a scalpel head which is arranged at the front end part of the scalpel body; the protection assembly is movably arranged on the cutter body, at least comprises a front stop position and a rear stop position in the moving process of the protection assembly on the cutter body, the protection assembly comprises a protection sleeve movably sleeved on the cutter body, and when the protection assembly is located at the front stop position on the cutter body, the cutter head is accommodated in the protection sleeve; when the protection component is located at the rear stop position on the cutter body, the cutter head is exposed out of the protection sleeve. The utility model discloses can avoid the scalpel to insert or dial out when the operation chamber says and the scalpel takes place the phenomenon of accidents such as accidental injury tissue easily when non-cutting state removes.
Description
Technical Field
The utility model relates to a medical scalpel of protection type belongs to medical instrument technical field.
Background
The surgery of twenty-first century has entered the minimally invasive era, the minimally invasive surgery is more and more at present, and the medical scalpel under the endoscope basically has no protection device, like this, under the endoscopic surgery, when the scalpel is inserted into or pulled out of the operation cavity way and when the scalpel moves in the non-cutting state, accidents such as accidental injury of tissues easily occur, especially the knife needs to be propelled to the saddle bottom through the nasal cavity when cutting the saddle bottom dura mater of the minimally invasive transhypophysial tumor surgery through the dish endoscope, but because the nasal cavity is very narrow, the lateral surface has the nose nail to be protruded, the nasal cavity tissue is often accidentally injured by the existing saddle bottom dura mater knife, and a novel cutter which can not accidentally injure the nasal cavity tissue under the condition needs to be designed.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a medical scalpel of protection type, it can avoid the scalpel to insert or dial out when the operation chamber says and the phenomenon of accidents such as accidental injury tissue takes place easily when the scalpel removes at non-cutting state.
In order to solve the technical problem, the technical scheme of the utility model is that: a protective medical scalpel, comprising:
the cutter body comprises a cutter head, and the cutter head is arranged at the front end part of the cutter body;
the protective assembly is movably arranged on the cutter body, at least comprises a front stop position and a rear stop position in the moving process of the protective assembly on the cutter body, the protective assembly comprises a protective sleeve movably sleeved on the cutter body, and when the protective assembly is positioned at the front stop position on the cutter body, the cutter head is completely accommodated in the protective sleeve; when the protection component is located at the rear stop position on the cutter body, the cutter head is exposed out of the protection sleeve.
Further, the cutter body still includes:
the cutter head is connected to the front end part of the cutter bar, and the protective sleeve is movably sleeved on the outer wall of the cutter bar;
and the cutter handle is connected with the rear end part of the cutter rod.
Further, in order to conveniently operate and move the protection assembly on the cutter body, the protection assembly further comprises an operating handle, the operating handle is connected with the protection sleeve, and the operating handle is connected to the cutter handle in a sliding mode at least along the front-back direction.
Furthermore, the outer wall of the operating handle is provided with a bulge.
Further, in order to prevent the scalpel from rolling when being placed on an operating table, at least one anti-rotation surface is arranged on the bulge.
Further, in order to enable the protection assembly to rotate in the front stop position and the rear stop position, the operating handle is suitable for rotating on the tool shank along the circumferential direction of the tool shank at least when the protection assembly is in the front stop position and/or the rear stop position.
Further, a front stop ring groove and a rear stop ring groove are formed in the cutter handle along the circumferential direction of the cutter handle;
the operating handle is provided with a limiting piece which is matched with the front stop ring groove and the rear stop ring groove in an embedding way;
when the protection component is located at the front stop position, the limiting piece is embedded in the front stop ring groove;
when the protection component is located at the rear stop position, the limiting part is embedded in the rear stop ring groove.
Further, in order to enable the protection assembly to conveniently move back and forth on the cutter body, the operating handle is connected to the cutter handle in a sliding mode along the back and forth direction through at least one sliding guide mechanism; wherein, the slide guide mechanism includes:
a guide groove which is arranged on any one of the operating handle and the knife handle along the front-back direction and is provided with a front stop end and a rear stop end; and
a guide member disposed in the guide groove and provided on the remaining one of the operating handle and the holder;
when the protection component is positioned at the front stop position, the guide piece is abutted against the front stop end of the guide groove;
when the protection component is located at the rear stop position, the guide piece is abutted against the rear stop end of the guide groove.
Furthermore, a stop point is arranged on the operating handle, a front stop concave point and a rear stop concave point which are matched with the stop point are also arranged on the cutter handle, and when the protection assembly is positioned at the front stop position, the stop point is matched in the front stop concave point; when the protection component is located at the rear stop position, the stop point is matched in the rear stop concave point.
Further, the cutter bar is a straight cutter bar or a bent cutter bar.
Further, the protective sleeve is a rigid or flexible structure or a combined rigid and flexible structure.
After the technical scheme is adopted, the protection component is pushed to the front stop position, the knife head is completely arranged in the protection sleeve at the moment, the scalpel of the utility model can be inserted into or pulled out of an operation cavity (such as a nasal cavity during minimally invasive endoscopic pituitary adenoma operation) and can move under a non-cutting state, and the knife head is completely arranged in the protection sleeve, so that the accident phenomena of tissue accidental injury and the like when the scalpel is applied can be avoided; when the operation cuts, will protect the subassembly and push away the back dead center position, the tool bit exposes the protective sheath, when getting into work cutting position, can carry out operation cutting tissue.
Drawings
Fig. 1 is a state diagram of a protective medical scalpel in an embodiment of the present invention, with a scalpel head in a protective sleeve;
fig. 2 is a state diagram of the protective medical scalpel according to the first embodiment of the present invention with the protective cover exposed on the scalpel head;
fig. 3 is a state diagram of the protective medical scalpel according to the second embodiment of the present invention with the scalpel head in the protective sleeve;
fig. 4 is a state diagram of the protective medical scalpel according to the second embodiment of the present invention with the protective cover exposed on the scalpel head;
fig. 5 is a first schematic view of the connection between the operating handle and the handle part of the protective medical scalpel according to the first and second embodiments of the present invention;
fig. 6 is a second schematic view of the connection between the operating handle and the handle part of the protective medical scalpel according to the first and second embodiments of the present invention;
fig. 7(a) to 7(m) are schematic structural views of various types of tool bits used in the first embodiment and the second embodiment of the present invention;
fig. 8 is a schematic view of the structure of the protrusion of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example one
As shown in fig. 1, 2, 5 to 7, a protective medical scalpel comprises:
the cutter body comprises a cutter head 2, and the cutter head 2 is arranged at the front end part of the cutter body;
the protection assembly is movably arranged on the cutter body, at least comprises a front stop position and a rear stop position in the moving process of the protection assembly on the cutter body, the protection assembly comprises a protection sleeve 1 movably sleeved on the cutter body, and when the protection assembly is located at the front stop position on the cutter body, the cutter head 2 is completely accommodated in the protection sleeve 1; when the protection component is located at the rear stop position on the cutter body, the cutter head 2 is exposed out of the protection sleeve 1.
In particular, fig. 7(a) to 7(m) show various structures of the cutting head 2 that can be used to meet various surgical requirements, but are not limited thereto. The part A shown in fig. 7(a) to 7(m) is a cutting edge of the cutter head.
Specifically, as shown in fig. 1, 2, 5, and 6, the cutter body may further include:
the cutter bar 3 is connected with the front end part of the cutter bar 3, and the protective sleeve 1 is movably sleeved on the outer wall of the cutter bar 3;
and the tool handle 5 is connected with the rear end part of the tool bar 3.
Specifically, in order to operate the movable protection assembly on the cutter body, as shown in fig. 1, 2, 5 and 6, the protection assembly further includes an operating handle 4, the operating handle 4 is connected to the protection sleeve 1, and in order to operate the operating handle 4, as shown in fig. 1 and 2, a protrusion 43 is disposed on an outer wall of the operating handle 4.
Further, in order to prevent the scalpel from rolling when being placed on the operating table, as shown in fig. 8, at least one anti-rotation surface 43a is arranged on the protrusion 43; specifically, two rotation preventing surfaces 43a are provided and symmetrically provided on the protrusion 43.
In the present embodiment, the connection mode of the operating handle 4 and the handle 5 has two types:
the first case is that the operating handle 4 together with the protective sheath 1 only allows to move back and forth, and the specific structure is as follows: as shown in fig. 5, the operating handle 4 is slidably connected to the handle 5 in the front-rear direction, and the operating handle 4 is slidably connected to the handle 5 in the front-rear direction by at least one slide guide mechanism; wherein, the slide guide mechanism includes:
a guide groove 53 provided on the shank 5 in the front-rear direction and having a front end and a rear end; and
a guide member 42 disposed in the guide groove 53 and provided on the operating handle 4;
when the protection component is located at the front stop position, the guide piece 42 abuts against the front stop end of the guide groove 53;
when the protection assembly is in the rear stop position, the guide member 42 abuts against the rear stop end of the guide groove 53.
Specifically, the operating handle 4 is further provided with a stop point 44, the handle 5 is further provided with a front stop concave point and a rear stop concave point which are matched with the stop point 44, and when the protection assembly is located at the front stop position, the stop point 44 is matched in the front stop concave point;
the stop 44 fits within the back stop recess when the guard assembly is in the back stop position.
It should be noted that, in a variant of the scalpel, the stop 44 and the guide 42 are integral, the front stop recess being located at the front stop end and the rear stop recess being located at the rear stop end;
of course, the stop 44 and the guide 42 may also be provided separately.
In addition, the guide groove 53 in this embodiment may be provided on the operating handle 4, and the guide 42 may be provided on the tool shank 5, which also achieves the purpose of guiding the sliding movement.
The second case is divided into three schemes: the operating handle 4 and the protective sleeve 1 can move back and forth in the three schemes, and the difference in the three schemes is that:
in the first scheme: the operating handle 4 and the knife handle 5 can rotate relatively when in the front stop position and the rear stop position;
in the second scheme: the operating handle 4 and the knife handle 5 can rotate relatively at the front stop position and can not rotate relatively at the back stop position;
in a third scenario: the operating handle 4 and the knife handle 5 can not rotate relatively at the front stop position and can rotate relatively at the back stop position;
when the device is actually used, the second scheme is a better scheme under the second condition so as to be beneficial to single-hand operation, wherein the specific structure of the first scheme is as follows:
as shown in fig. 6, when the protection assembly is located at the front stop position and the rear stop position, the operating handle 4 can rotate on the handle 5 along the circumferential direction of the handle 5, and the handle 5 is provided with a front stop ring groove 51 and a rear stop ring groove 52 which are arranged along the circumferential direction of the handle 5; the operating handle 4 is provided with a limiting piece 41 which is matched with the front stop ring groove 51 and the rear stop ring groove 52 in an embedding manner; when the protection component is located at the front stop position, the limiting member 41 is embedded in the front stop ring groove 51; when the protection assembly is located at the rear stop position, the limiting member 41 is embedded in the rear stop ring groove 52. In the present structure, the operating handle 4 is moved back and forth to the front stop position and the rear stop position, and since there is no guide groove, it is possible to provide a guide groove connecting the front stop ring groove 51 and the rear stop ring groove 52 by means of elastic deformation of the operating handle 4.
It should be noted that the operating handle 4 in the first case and the second case may have the same structure, and the guide 42 and the stopper 41 may be the same recess provided in the operating handle 4 and recessed radially inward.
In the present embodiment, the tool bar 3 is a straight tool bar.
The protective sleeve 1 is a rigid or flexible structure or a combined rigid and flexible structure.
When the scalpel is applied to minimally invasive percutaneous endoscopic pituitary adenoma surgery for cutting the dura mater under the saddle, the operating handle 4 is pushed to the front stop position, the scalpel head 2 is completely arranged in the protective sleeve 1 at the moment, the scalpel can be inserted into or pulled out of the nasal cavity and the scalpel can move in a non-cutting state, and the scalpel head 2 is completely arranged in the protective sleeve, so that the accident phenomena that the scalpel accidentally injures nasal cavity tissues and the like can be avoided; when the operation is performed to cut, the operation handle 4 is pushed to the position of the rear dead center, the cutter head 2 is exposed out of the protective sleeve 1, and when the operation is performed to the working cutting position, the operation can be performed to cut tissues.
Example two
As shown in fig. 3 and 4, the structure of the protective medical scalpel of the present embodiment is substantially the same as that of the first embodiment, except that the scalpel bar is a bent scalpel bar, and the protective sheath 1 is a flexible structure or a structure combining rigidity and flexibility.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (11)
1. A protective medical scalpel, comprising:
the cutter body comprises a cutter head (2), and the cutter head (2) is arranged at the front end part of the cutter body;
the protective assembly is movably arranged on the cutter body, at least comprises a front stop position and a rear stop position in the moving process of the protective assembly on the cutter body, the protective assembly comprises a protective sleeve (1) movably sleeved on the cutter body, and when the protective assembly is located at the front stop position on the cutter body, the cutter head (2) is completely accommodated in the protective sleeve (1); when the protection component is located at a rear stop position on the cutter body, the cutter head (2) is exposed out of the protection sleeve (1).
2. The protective medical scalpel of claim 1,
the cutter body still includes:
the cutter bar (3), the cutter head (2) is connected to the front end part of the cutter bar (3), and the protective sleeve (1) is movably sleeved on the outer wall of the cutter bar (3);
and the knife handle (5) is connected with the rear end part of the knife bar (3).
3. The protective medical scalpel of claim 2,
the protection assembly further comprises an operating handle (4), the operating handle (4) is connected with the protection sleeve (1), and the operating handle (4) is connected to the knife handle (5) in a sliding mode at least along the front-back direction.
4. The protective medical scalpel of claim 3,
and a bulge (43) is arranged on the outer wall of the operating handle (4).
5. The protective medical scalpel of claim 4,
the bulge (43) is provided with at least one anti-rotation surface (43 a).
6. The protective medical scalpel of claim 3,
the operating handle (4) is suitable for rotating on the cutter handle (5) along the circumferential direction of the cutter handle (5) at least when the protection assembly is located at the front stop position and/or the rear stop position.
7. The protective medical scalpel of claim 6,
the tool handle (5) is provided with a front stop ring groove (51) and a rear stop ring groove (52) which are arranged along the circumferential direction of the tool handle (5);
the operating handle (4) is provided with a limiting piece (41) which is matched with the front stop ring groove (51) and the rear stop ring groove (52) in an embedding way;
when the protection component is located at a front stop position, the limiting piece (41) is embedded in the front stop ring groove (51);
when the protection component is located at a rear stop position, the limiting piece (41) is embedded in the rear stop ring groove (52).
8. The protective medical scalpel of claim 3,
the operating handle (4) is connected to the knife handle (5) in a sliding manner along the front-back direction through at least one sliding guide mechanism; wherein, the slide guide mechanism includes:
a guide groove (53) which is arranged on any one of the operating handle (4) and the knife handle (5) along the front-back direction and is provided with a front stop end and a rear stop end; and
a guide member (42) disposed in the guide groove (53) and provided on the remaining one of the operating handle (4) and the shank (5);
when the protection component is located at the front stop position, the guide piece (42) is abutted against the front stop end of the guide groove (53);
when the protection assembly is in the rear stop position, the guide member 42 abuts against the rear stop end of the guide groove 53.
9. The protective medical scalpel of claim 3,
the operating handle (4) is also provided with a dead point (44), the tool shank (5) is also provided with a front dead point and a rear dead point which are matched with the dead point (44), and when the protection assembly is positioned at the front dead position, the dead point (44) is matched in the front dead point;
the dead point (44) fits within the back stop recess point when the protective assembly is in the back stop position.
10. The protective medical scalpel of claim 2,
the cutter bar (3) is a straight cutter bar or a bent cutter bar.
11. The protective medical scalpel of claim 1,
the protective sleeve (1) is a rigid or flexible structure or a structure combining rigidity and flexibility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921709245.6U CN211484808U (en) | 2019-10-12 | 2019-10-12 | Protective medical scalpel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921709245.6U CN211484808U (en) | 2019-10-12 | 2019-10-12 | Protective medical scalpel |
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| Publication Number | Publication Date |
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| CN211484808U true CN211484808U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921709245.6U Active CN211484808U (en) | 2019-10-12 | 2019-10-12 | Protective medical scalpel |
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| CN (1) | CN211484808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110537959A (en) * | 2019-10-12 | 2019-12-06 | 常州市延陵电子设备有限公司 | Protective medical scalpel |
-
2019
- 2019-10-12 CN CN201921709245.6U patent/CN211484808U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110537959A (en) * | 2019-10-12 | 2019-12-06 | 常州市延陵电子设备有限公司 | Protective medical scalpel |
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