CN215534681U - Safety nerve retractor - Google Patents
Safety nerve retractor Download PDFInfo
- Publication number
- CN215534681U CN215534681U CN202122032138.8U CN202122032138U CN215534681U CN 215534681 U CN215534681 U CN 215534681U CN 202122032138 U CN202122032138 U CN 202122032138U CN 215534681 U CN215534681 U CN 215534681U
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- CN
- China
- Prior art keywords
- spring
- liquid suction
- traction mechanism
- pulling force
- wall
- 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
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- 210000005036 nerve Anatomy 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 238000005213 imbibition Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 3
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a safe nerve retractor which comprises a handle head, a spring barrel and a traction mechanism which are sequentially connected, wherein a connecting groove is arranged at one end of the handle head connected with the spring barrel, the shape and the size of the longitudinal section of the connecting groove are matched with those of the longitudinal section of the spring barrel, an internal thread is arranged on the inner wall of the connecting groove, an external thread matched with the internal thread is arranged on the outer wall of one end of the spring barrel connected with the handle head, the spring barrel is in threaded connection with the handle head, one end of the traction mechanism is slidably arranged in the spring barrel and is connected with a tension spring arranged in the spring barrel, a liquid suction channel is arranged at the position of the central line of the traction mechanism, a channel supporting rod is arranged in the liquid suction channel, a main liquid suction port of the liquid suction channel is positioned at the end point of the traction head of the traction mechanism, and more than two auxiliary liquid suction ports are arranged on the outer wall of the traction head of the traction mechanism. The problem of current nerve drag hook's tension spring can't be changed according to patient's individual condition is solved.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a safe nerve retractor.
Background
The nerve root drag hook is an instrument necessary in neurosurgery operation and used for dragging a pressed nerve root, the existing nerve root drag hook is generally composed of a drag hook and a handle, the tension springs of the existing nerve root drag hook are fixed, the tension of the fixed spring is fixed and limited, but the nerve root drag hook is difficult to operate and affects the treatment problem and serious or even serious medical accidents occur because the body condition of each person is different and the spring of the existing nerve root drag hook cannot be changed when a patient meets special conditions and needs to be changed by another spring, and in addition, the incision can generate dirty liquid and seepage liquid, a suction apparatus is often required to be additionally arranged for use, the operation is inconvenient, and the operation efficiency is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a safe nerve retractor, which solves the problem that a tension spring of the existing nerve retractor cannot be replaced according to the personal condition of a patient.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a nerve drag hook of security, is including what connect gradually head, spring case and drive mechanism, the one end of being connected head and spring case is equipped with the spread groove, the shape size of spread groove longitudinal section and the shape size adaptation of spring case longitudinal section, the inner wall of spread groove are equipped with the internal thread, the spring case then is equipped with the external screw thread with the internal thread adaptation with the outer wall of head one end of being connected, spring case and threaded connection between the head, the gliding setting of one end of drive mechanism is in the spring case to link to each other with the tension spring who sets up in the spring case, drive mechanism's central line position department is equipped with the imbibition passageway, is equipped with the passageway bracing piece in the imbibition passageway, and the main imbibition mouth of imbibition passageway is located the termination department of drive mechanism traction head, the outer wall of drive mechanism traction head then is equipped with the vice imbibition mouth more than two.
With spring cylinder and first threaded connection, just so can be according to patient's the condition, in time change suitable tensile strength's spring cylinder, adaptability is better, has set up the imbibition passageway in addition, can be when the operation, absorb the hydrops, and set up main imbibition mouth and vice imbibition mouth so firstly for reinforcing the imbibition effect, secondly because only set up an imbibition mouth and be blockked up easily, and the bracing piece that sets up in the imbibition passageway then can improve traction mechanism's intensity.
As a further preferred of the present invention, the spring cartridge includes a cylinder and a tension spring, the tension spring is disposed at one end of the cylinder, the other end of the tension spring is connected to a sliding plate slidably connected in the cylinder, the other side of the sliding plate is provided with a traction mechanism connecting rod, and the traction mechanism connecting rod passes through the end wall of the cylinder and is connected to the traction mechanism.
Preferably, a strip-shaped tension display opening is further formed above the spring cylinder, the starting end of the tension display opening is flush with the position of a stretching end of the tension spring under the natural length, tension scales are arranged on two sides of the tension display opening, a tension indication rod is arranged at the top of the stretching end of the tension spring, a tension indication is arranged through the tension display opening, a tension indication arrow is arranged at the upper part of the tension indication rod, and the tension indication arrow is positioned outside the spring cylinder.
The tensile strength can be displayed outside the spring cylinder, and the observation of a doctor is facilitated compared with the observation of the tensile strength arranged in the spring cylinder.
As a further preferred feature of the present invention, the liquid outlet of the liquid suction passage is located at the upper part of the outer wall of the traction mechanism connecting section.
As a further preferable mode of the present invention, the outer wall of the handle head is provided with a protective line.
Can prevent slipping.
In a further preferred embodiment of the present invention, the number of the auxiliary liquid suction ports is three or more.
Even if one of the auxiliary liquid suction ports is blocked, the other auxiliary liquid suction ports can work normally, and the failure rate is reduced.
Compared with the prior art, the utility model can at least achieve one of the following beneficial effects:
1. can change the spring case, the practicality is better.
2. Can absorb liquid during operation.
3. The main liquid suction port and the auxiliary liquid suction port are arranged, so that the liquid suction effect is good, and the failure rate is reduced.
4. The tension strength of the tension spring can be observed conveniently.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Specific example 1:
fig. 1 shows a safe nerve retractor, which comprises a handle head 1, a spring cylinder 2 and a traction mechanism 3 which are connected in sequence, one end of the handle head 1 connected with the spring barrel 2 is provided with a connecting groove, the shape and the size of the longitudinal section of the connecting groove are matched with the shape and the size of the longitudinal section of the spring barrel 2, the inner wall of the connecting groove is provided with internal threads, the outer wall of the end of the spring cylinder 2 connected with the handle head 1 is provided with an external thread matched with the internal thread, the spring cylinder 2 is connected with the handle head 1 through the thread, one end of the traction mechanism 3 is arranged in the spring cylinder 2 in a sliding way, the liquid suction device is connected with a tension spring 22 arranged in the spring barrel 2, a liquid suction channel 31 is arranged at the position of the center line of the traction mechanism 3, a channel support rod is arranged in the liquid suction channel 31, a main liquid suction port of the liquid suction channel 31 is positioned at the end point of a traction head of the traction mechanism 3, and more than two auxiliary liquid suction ports are arranged on the outer wall of the traction head of the traction mechanism 3.
With spring cylinder and first threaded connection, just so can be according to patient's the condition, in time change suitable tensile strength's spring cylinder, adaptability is better, has set up the imbibition passageway in addition, can be when the operation, absorb the hydrops, and set up main imbibition mouth and vice imbibition mouth so firstly for reinforcing the imbibition effect, secondly because only set up an imbibition mouth and be blockked up easily, and the bracing piece that sets up in the imbibition passageway then can improve traction mechanism's intensity.
Specific example 2:
in this embodiment, a spring cylinder 2 is further described on the basis of the specific embodiment 1, where the spring cylinder 2 includes a cylinder 21 and a tension spring 22, the tension spring 22 is disposed at one end of the cylinder 21, the other end of the tension spring 22 is connected to a sliding plate slidably connected in the cylinder 21, and a traction mechanism connecting rod is disposed on the other side of the sliding plate, and the traction mechanism connecting rod passes through an end wall of the cylinder 21 and is connected to the traction mechanism 3.
Specific example 3:
this embodiment is that the further explanation has been carried out to spring case 2 on concrete embodiment 2's basis, the tensile force of strip shows the opening still has been seted up to the top of spring case 2, and tensile force shows that the initiating terminal of opening and tension spring 22 tensile end position under the natural length flush, and the both sides of tensile force show the opening are equipped with the pulling force scale, and the top of tension spring tensile end is equipped with tensile force indication rod 4, and tensile force indication rod 4 wears to establish at tensile force display opening play, and the upper portion of tensile force indication rod 4 is equipped with tensile force indication arrow point, and tensile force indication arrow point is located the spring case 2 outside.
The tensile strength can be displayed outside the spring cylinder, and the observation of a doctor is facilitated compared with the observation of the tensile strength arranged in the spring cylinder.
Specific embodiment 4:
this embodiment is further explained on the basis of the specific embodiment 1, wherein the liquid outlet of the liquid suction channel 31 is located at the upper part of the outer wall of the connecting section of the traction mechanism 3.
Specific example 5:
in this embodiment, the handle head 1 is further described on the basis of specific embodiment 1, and the outer wall of the handle head 1 is provided with a protective texture.
Can prevent slipping.
Specific example 6:
this embodiment is further described with reference to specific embodiment 1, and the number of the sub liquid suction ports is three or more.
Even if one of the auxiliary liquid suction ports is blocked, the other auxiliary liquid suction ports can work normally, and the failure rate is reduced.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a nerve drag hook of security, is including what connect gradually head (1), spring case (2) and drive mechanism (3), its characterized in that: one end of the handle head (1) connected with the spring barrel (2) is provided with a connecting groove, the shape and the size of the longitudinal section of the connecting groove are matched with those of the longitudinal section of the spring barrel (2), the inner wall of the connecting groove is provided with internal threads, the outer wall of one end of the spring cylinder (2) connected with the handle head (1) is provided with an external thread matched with the internal thread, the spring cylinder (2) is connected with the handle head (1) through the thread, one end of the traction mechanism (3) is arranged in the spring cylinder (2) in a sliding way, and is connected with a tension spring (22) arranged in the spring barrel (2), a liquid suction channel (31) is arranged at the central line position of the traction mechanism (3), a channel support rod is arranged in the liquid suction channel (31), a main liquid suction port of the liquid suction channel (31) is positioned at the end point of a traction head of the traction mechanism (3), the outer wall of the traction head of the traction mechanism (3) is provided with more than two auxiliary liquid suction ports.
2. The safety nerve retractor according to claim 1, wherein: the spring barrel (2) comprises a barrel body (21) and a tension spring (22), the tension spring (22) is arranged at one end of the barrel body (21), the other end of the tension spring (22) is connected with a sliding plate which is connected in the barrel body (21) in a sliding mode, a traction mechanism connecting rod is arranged on the other side of the sliding plate, and the traction mechanism connecting rod penetrates through the end wall of the barrel body (21) and is connected with the traction mechanism (3).
3. The safety nerve retractor according to claim 2, wherein: the top of spring section of thick bamboo (2) has still seted up the pulling force of bar and has shown the opening, and pulling force shows that open-ended initiating terminal and pulling force spring (22) natural length under the tensile end position flush, and pulling force shows that open-ended both sides are equipped with the pulling force scale, and the top of pulling force spring tensile end is equipped with pulling force indicator (4), and pulling force indicator (4) are worn to establish and are shown the opening play at the pulling force, and the upper portion of pulling force indicator (4) is equipped with pulling force and indicates the arrow point, and pulling force indicator arrow point is located spring section of thick bamboo (2) outside.
4. The safety nerve retractor according to claim 1, wherein: and a liquid outlet of the liquid suction channel (31) is positioned at the upper part of the outer wall of the connecting section of the traction mechanism (3).
5. The safety nerve retractor according to claim 1, wherein: the outer wall of the handle head (1) is provided with protective grains.
6. The safety nerve retractor according to claim 1, wherein: the number of the auxiliary liquid suction ports is more than three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122032138.8U CN215534681U (en) | 2021-08-26 | 2021-08-26 | Safety nerve retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122032138.8U CN215534681U (en) | 2021-08-26 | 2021-08-26 | Safety nerve retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215534681U true CN215534681U (en) | 2022-01-18 |
Family
ID=79842771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122032138.8U Expired - Fee Related CN215534681U (en) | 2021-08-26 | 2021-08-26 | Safety nerve retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215534681U (en) |
-
2021
- 2021-08-26 CN CN202122032138.8U patent/CN215534681U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20220118 |