CN217772528U - Mammary gland positioning needle with sliding mechanism - Google Patents
Mammary gland positioning needle with sliding mechanism Download PDFInfo
- Publication number
- CN217772528U CN217772528U CN202221403079.9U CN202221403079U CN217772528U CN 217772528 U CN217772528 U CN 217772528U CN 202221403079 U CN202221403079 U CN 202221403079U CN 217772528 U CN217772528 U CN 217772528U
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- Prior art keywords
- guide wire
- sliding block
- sliding mechanism
- sliding
- handle assembly
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- 210000005075 mammary gland Anatomy 0.000 title abstract description 8
- 210000000481 breast Anatomy 0.000 claims description 20
- 206010006187 Breast cancer Diseases 0.000 description 2
- 208000026310 Breast neoplasm Diseases 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Abstract
The utility model relates to a mammary gland pilot pin with slide mechanism, include: a handle assembly; the guide wire locking structure comprises a sliding mechanism, an upper sliding block, a lower sliding block and a guide wire, wherein the upper sliding block is used for sliding the sliding mechanism, the lower sliding block is matched with the upper sliding block, and the guide wire is positioned between the upper sliding block and the lower sliding block; when the sliding mechanism is positioned on one side of the upper sliding block, the sliding mechanism and the upper sliding block are in a pressing state, so that the locking function between the guide wire and the handle component is realized; when the sliding mechanism is positioned on the other side of the upper sliding block, the sliding mechanism and the upper sliding block are in a relaxed state, so that the unlocking function between the guide wire and the handle assembly is realized; the guide wire moving structure is used for realizing the advancing or retreating of the guide wire; the guide wire locking structure and the guide wire moving structure are disposed in the handle assembly. When the guide wire and the sliding block are locked or unlocked through the sliding mechanism, the upper sliding block and the lower sliding block, the operation is labor-saving, the shaking is not easy to occur, and the positioning accuracy can be improved.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a mammary gland pilot pin with slide mechanism.
Background
The information disclosed in this background section is only for enhancement of some understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
The breast tumor is one of common diseases of women, and the breast tumor with the diameter of less than 1 cm, especially less than 0.5 cm can not be accurately operated due to the fact that a surgeon can not touch or can not touch clearly, and can be cut off only after being positioned by a breast positioning needle.
The breast locating needle typically penetrates an external needle into the tumor area under ultrasound guidance, releasing the guidewire at the operating handle so that the tip of the guidewire is anchored in the tumor area. The existing mammary gland positioning needle usually adopts a handle to release a guide wire, the locking and unlocking relation between the guide wire and the handle is determined by the pressing force, and the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
As described in the background art, the locking and unlocking relationship between the guide wire and the handle is determined by the magnitude of the pressing force of the existing breast positioning needle, the guide wire and the handle can be locked only by pressing down with force during operation, and the hand is easy to shake due to the overlarge pressing force during operation, so that the positioning position of the guide wire is influenced.
In view of this, the utility model provides a mammary gland pilot pin with slide mechanism, mammary gland pilot pin seal wire locking structure wherein operates comparatively laborsavingly, is difficult to take place the shake, can improve the degree of accuracy of location.
Specifically, the utility model adopts the following technical scheme:
a breast locating needle with a sliding mechanism comprising: a handle assembly; the guide wire locking structure comprises a sliding mechanism, an upper sliding block, a lower sliding block and a guide wire, wherein the upper sliding block is used for sliding the sliding mechanism, the lower sliding block is matched with the upper sliding block, and the guide wire is positioned between the upper sliding block and the lower sliding block; when the sliding mechanism is positioned on one side of the upper sliding block, the sliding mechanism and the upper sliding block are in a pressing state, so that the locking function between the guide wire and the handle assembly is realized; when the sliding mechanism is positioned on the other side of the upper sliding block, the sliding mechanism and the upper sliding block are in a relaxed state, so that the unlocking function between the guide wire and the handle assembly is realized; the guide wire moving structure is used for realizing the advancing or retreating of the guide wire; the guide wire locking structure and the guide wire moving structure are disposed in the handle assembly.
Optionally, the guide wire locking structure is located at one end of the handle assembly and the guide wire moving structure is located at the other end of the handle assembly.
Optionally, the guide wire locking structure is located at a front end of the handle assembly and the guide wire moving structure is located at a rear end of the handle assembly.
Optionally, in the guide wire locking structure, the sliding mechanism, the upper slider, the guide wire, and the lower slider are sequentially arranged from top to bottom in the handle assembly.
Optionally, in the guide wire locking structure, the sliding mechanism includes a locking button having at least one through hole and a pin rod provided on the locking button through the through hole.
Optionally, in the guide wire locking structure, a groove for the guide wire to pass through is formed in the upper sliding block, and the depth of the groove is smaller than the diameter of the guide wire; when the locking button presses the upper sliding block tightly, the guide wire is locked with the upper sliding block and the lower sliding block.
Optionally, in the guide wire locking structure, the guide wire is a single-hook guide wire or a double-hook guide wire.
Optionally, the handle assembly comprises a housing, a sliding hole for installing the locking button is formed in the upper portion of the front end of the housing, and inclined grooves are formed in two sides of the upper portion of the front end of the housing respectively; the locking button is clamped on the front end of the shell through the sliding hole and can move in the sliding hole; correspondingly, the upper sliding block is provided with an inclined plane matched with the inclined groove, the pin rod is clamped in the inclined grooves on two sides of the shell, and under the guidance of the inclined grooves, the pin rod can do inclined plane movement on the upper sliding block, so that the locking button is pressed or separated from the surface of the upper sliding block, the guide wire, the upper sliding block and the lower sliding block are in a pressing or loosening state, and the locking or unlocking function is realized.
Alternatively, the housing includes an upper housing and a lower housing, which may be closed as a single body, i.e., a handle body.
One skilled in the art will be familiar with the interfitting or connecting relationship of one or more guide wire movement structures with the guide wire locking structure and handle assembly to effect advancement or retraction of the guide wire. The detailed structure and connection relationship of the guide wire moving structure are not further described herein, for example, the guide wire moving structure is a pressing type pushing structure or a roller type pushing structure.
Optionally, the utility model provides a roller type pushing structure, which comprises a roller and a rack, wherein one side of the roller is provided with a concentric gear meshed with the rack, and the upper part of the front end of the rack is clamped with the lower slider; the concentric gear is meshed with the rack and can drive the rack to move forward or backward.
Optionally, a straight groove is formed in the bottom in the shell, and the lower portion of the front end of the rack is matched with the straight groove through a rack protrusion, so that the rack slides in the straight groove.
Optionally, the handle assembly further comprises a coaxial needle, the coaxial needle comprises a coaxial needle handle and a coaxial needle tube, the coaxial needle is located at the top end of the housing, and the guide wire penetrates through the coaxial needle to keep a linear state of the guide wire.
According to the technical scheme of the utility model, through slide mechanism, top shoe, during the lower slider locks seal wire and slider or unblock, operate comparatively laborsavingly, be difficult to take place to shake, can improve the degree of accuracy of location.
Drawings
For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of a structure of a breast positioning needle having a sliding mechanism according to the present invention;
fig. 2 is an exploded view of a structure of the breast positioning needle with a sliding mechanism of the present invention;
fig. 3 is a schematic view of a structure of a breast positioning needle with a sliding mechanism according to the present invention;
fig. 4 is a schematic view of a structure of the breast positioning needle with a sliding mechanism of the present invention;
the guide wire locking device comprises a handle assembly 1, a handle assembly 11, an upper shell 111, a sliding hole 112, a chute 113, a roller sliding hole 12, a lower shell 121, a straight groove 13, a coaxial needle 131, a coaxial needle handle 132, a coaxial needle tube 2, a guide wire locking structure 21, a sliding mechanism 211, a locking button 212, a pin rod 213, a through hole 22, an upper sliding block 221, an inclined plane 23, a lower sliding block 24, a guide wire 3, a guide wire moving structure 31, a roller 311, a concentric gear, 32, a rack 321 and a rack bulge.
Detailed Description
In an exemplary embodiment of the present invention, a breast positioning needle with a sliding mechanism is provided, as shown in fig. 1, the breast positioning needle includes a handle assembly 1, a guide wire locking structure 2 and a guide wire moving structure 3, the guide wire locking structure 2 and the guide wire moving structure 3 are both disposed in the handle assembly 1, the guide wire locking structure 2 is located at the front end of the handle assembly 1 according to the needle insertion direction, and the guide wire moving structure 3 is located at the rear end of the handle assembly 1.
As shown in fig. 2, 3 and 4, the guide wire locking structure 2 includes a slide mechanism 21, an upper slider 22 on which the slide mechanism slides, a lower slider 23 which is engaged with the upper slider, and a guide wire 24 which is positioned between the upper slider and the lower slider. Specifically, the slide mechanism 21 includes a lock button 211 having at least one through-hole 213, and a pin rod 212, the pin rod 212 being located in the through-hole 213 and penetrating the lock button 211, and being exposed at one end on both sides of the lock button 211. The upper sliding block 22 is provided with a groove for the guide wire 24 to pass through, and the depth of the groove is smaller than the diameter of the guide wire 24; when the locking button 211 presses the upper slider 22, the guide wire 24 is locked with the upper slider 22 and the lower slider 23. The guidewire 24 may be a flexible, single hook guidewire.
The handle assembly 1 comprises an upper shell 11, a lower shell 12 and a coaxial needle 13; the upper housing 11 and the lower housing 12 can be closed by means of an insertion connection to form a handle body, which is provided with a detachable coaxial pin 13 at one end of the guide wire locking structure 2. The coaxial needle 13 includes a coaxial needle handle 131 and a coaxial needle tube 132, and the coaxial needle tube 132 is inserted into the coaxial needle handle 131 to form the coaxial needle 13. The upper surface of the front end (the end close to the guide wire locking structure 2) of the upper shell 11 is provided with a sliding hole 111 for installing a locking button 211, and two side surfaces are respectively provided with a chute 112; the locking button 211 is clamped on the upper shell 11 through the sliding hole 111 and can move in the sliding hole 111, correspondingly, the upper sliding block 22 is provided with an inclined surface 221 matched with the inclined groove 112, the pin rod 212 is clamped in the inclined grooves 112 on two side surfaces of the upper shell, under the guidance of the inclined grooves 112, the pin rod 212 can perform inclined surface movement on the upper sliding block 22, so that the locking button 211 is pressed or separated from the surface of the upper sliding block 22, the guide wire 24, the upper sliding block 22 and the lower sliding block 23 are in a pressing or loosening state, and the locking or unlocking function of the guide wire 24 and the handle assembly 1 is realized. The upper surface of the rear end of the upper housing 11 is provided with a roller sliding hole 113, and the bottom of the lower housing 12 is provided with a straight groove 121.
The guide wire moving structure 3 is a roller type pushing structure and comprises a roller 31 and a rack 32, the roller 31 is exposed out of the upper shell 11 through a roller sliding hole 113, one side of the roller 31 is provided with a concentric gear 311 meshed with the rack 32, and the upper surface of the front end of the rack 32 is clamped with the lower slider 23; the concentric gear 311 engages with the rack 32 to drive the rack 32 forward or backward. The rack 32 is matched with the straight groove 121 through the lower rack projection 321 at the front end of the rack 32, so that the rack 32 slides in the straight groove 121.
The guide wire moving mechanism may be a roller type pushing mechanism, or may be another mechanism, such as a slider that is in contact with or separated from the guide wire, and moves forward or backward in the case of contact, thereby moving the guide wire by friction.
When the mammary gland positioning needle is used, the guide wire 24 and the sliding block are locked or unlocked through the locking button 211, and the sliding block is driven to move forwards and backwards through the roller 31, so that the guide wire 24 can move forwards and backwards. The guide wire 24 is kept in a linear state in the coaxial needle 13 before positioning, and after being pushed forward by the roller 31, the end of the guide wire 24 extends out of the coaxial needle 13 and is bent and spirally inserted into the tissue to realize positioning. If the positioning position is found to be wrong, the guide wire 24 can be pulled backwards through the roller 31, the guide wire 24 is straightened at the coaxial needle point position, and the guide wire can be withdrawn back into the coaxial needle 13.
The above detailed description does not limit the scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A breast locating needle with a sliding mechanism, comprising:
a handle assembly;
the guide wire locking structure comprises a sliding mechanism, an upper sliding block, a lower sliding block and a guide wire, wherein the upper sliding block is used for sliding the sliding mechanism, the lower sliding block is matched with the upper sliding block, and the guide wire is positioned between the upper sliding block and the lower sliding block; when the sliding mechanism is positioned on one side of the upper sliding block, the sliding mechanism and the upper sliding block are in a pressing state, so that the locking function between the guide wire and the handle assembly is realized; when the sliding mechanism is positioned on the other side of the upper sliding block, the sliding mechanism and the upper sliding block are in a relaxed state, so that the unlocking function between the guide wire and the handle assembly is realized;
the guide wire moving structure is used for realizing the advancing or retreating of the guide wire;
the guide wire locking structure and the guide wire moving structure are disposed in the handle assembly.
2. The breast positioning needle with the sliding mechanism of claim 1 wherein the guide wire locking structure is located at one end of the handle assembly and the guide wire moving structure is located at the other end of the handle assembly.
3. The breast positioning needle with the sliding mechanism according to claim 1, wherein in the guide wire locking structure, the sliding mechanism, the upper slider, the guide wire and the lower slider are arranged in the handle assembly from top to bottom in sequence.
4. The breast positioning needle with a sliding mechanism of claim 1, wherein in the guide wire locking structure, the sliding mechanism comprises a locking button with at least one through hole and a pin rod, and the pin rod is arranged on the locking button through the through hole.
5. The breast positioning needle with the sliding mechanism according to claim 1, wherein in the guide wire locking structure, the upper sliding block is provided with a groove for the guide wire to pass through, and the depth of the groove is smaller than the diameter of the guide wire; when the locking button presses the upper sliding block tightly, the guide wire is locked with the upper sliding block and the lower sliding block.
6. The breast positioning needle with the sliding mechanism as claimed in claim 4, wherein the handle assembly comprises a housing, a sliding hole for installing the locking button is provided on the upper part of the front end of the housing, and inclined slots are provided on two sides of the upper part of the front end of the housing respectively; the locking button is clamped on the front end of the shell through the sliding hole and can move in the sliding hole; correspondingly, the pin rod card is in the chute of casing both sides, the top shoe be equipped with chute assorted inclined plane, under the guide of chute, the pin rod can be inclined plane motion on the top shoe to make locking button compress tightly or leave the surface of top shoe, make seal wire and top shoe and lower slider present and compress tightly or the relaxed state, thereby realize locking or unblock function.
7. The breast positioning needle with the sliding mechanism of claim 6 wherein the housing comprises an upper housing and a lower housing, the upper housing and the lower housing being closable as a single piece.
8. The breast positioning needle with sliding mechanism according to claim 1, wherein the guide wire moving structure is a roller type pushing structure; the roller type pushing structure comprises a roller and a rack, one side of the roller is provided with a concentric gear meshed with the rack, and the upper part of the front end of the rack is clamped with the lower sliding block; the concentric gear is meshed with the rack and can drive the rack to move forward or backward.
9. The breast positioning needle with the sliding mechanism according to claim 6, wherein a straight groove is formed at the bottom in the housing, and the lower part of the front end of the rack is matched with the straight groove through a rack bulge to realize that the rack slides in the straight groove.
10. The breast positioning needle with sliding mechanism of claim 6 wherein the handle assembly further comprises a coaxial needle comprising a coaxial needle shaft and a coaxial needle tube, the coaxial needle being located at the top end of the housing, the guide wire extending through the coaxial needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221403079.9U CN217772528U (en) | 2022-06-07 | 2022-06-07 | Mammary gland positioning needle with sliding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221403079.9U CN217772528U (en) | 2022-06-07 | 2022-06-07 | Mammary gland positioning needle with sliding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217772528U true CN217772528U (en) | 2022-11-11 |
Family
ID=83917621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221403079.9U Active CN217772528U (en) | 2022-06-07 | 2022-06-07 | Mammary gland positioning needle with sliding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217772528U (en) |
-
2022
- 2022-06-07 CN CN202221403079.9U patent/CN217772528U/en active Active
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