CN220385193U - Mammary gland positioning needle with roller type guide wire moving structure - Google Patents
Mammary gland positioning needle with roller type guide wire moving structure Download PDFInfo
- Publication number
- CN220385193U CN220385193U CN202321392656.3U CN202321392656U CN220385193U CN 220385193 U CN220385193 U CN 220385193U CN 202321392656 U CN202321392656 U CN 202321392656U CN 220385193 U CN220385193 U CN 220385193U
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- Prior art keywords
- guide wire
- sliding block
- locking
- roller
- needle
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- 210000005075 mammary gland Anatomy 0.000 title claims abstract description 14
- 210000000481 breast Anatomy 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 208000026310 Breast neoplasm Diseases 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002559 palpation Methods 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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- Apparatus For Radiation Diagnosis (AREA)
Abstract
The utility model relates to a mammary gland positioning needle with a roller type guide wire moving structure, which comprises the following components: a handle assembly; the guide wire locking structure is used for locking or unlocking the guide wire and the sliding block; the guide wire moving structure adopts a roller type guide wire moving structure to push the sliding block in a locking state, so that the guide wire can be driven to move forwards or backwards; the guidewire locking structure and the guidewire movement structure are disposed in the handle assembly. The guide wire is pushed by the roller, so that labor is saved when the guide wire is sent out or retracted due to the labor saving effect of the gear; the handle is difficult to shake during operation, and the positioning accuracy of the guide wire is improved.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a mammary gland positioning needle with a roller type guide wire moving structure.
Background
Breast tumors are one of the common diseases of females, and the breast tumors with the diameter of less than 1 cm, especially less than 0.5 cm, are often not accurately operated due to incomplete touch or palpation of surgeons, and can be excised by operation after being positioned by a breast positioning needle.
The breast positioning needle typically penetrates the outer needle into the tumor area under ultrasound guidance, and releases the guidewire at the operating handle such that the tip of the guidewire is secured to the tumor area. In the prior art, the locking and unlocking relation between the guide wire and the handle is determined by the size of the pressing force, the guide wire and the handle can be locked by pressing with force during operation, the guide wire is pushed by the same large force, and the shake of the hand is easily caused by excessive force during operation, so that the positioning position of the guide wire is affected.
Disclosure of Invention
In view of the above, the utility model provides a mammary gland positioning needle with a roller type guide wire moving structure, which pushes the guide wire through a roller, and the labor is saved when the guide wire is sent out or retracted due to the labor saving effect of a gear.
Specifically, the utility model adopts the following technical scheme:
a mammary gland positioning needle with roller type guide wire moving structure, comprising: a handle assembly; the guide wire locking structure is used for locking or unlocking the guide wire and the sliding block; the guide wire moving structure adopts a roller type guide wire moving structure to push the sliding block in a locking state and is used for driving the guide wire to move forwards or backwards; the guidewire locking structure and the guidewire movement structure are disposed in the handle assembly.
Optionally, the guide wire moving structure 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 advance or retreat.
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 comprises a sliding mechanism, an upper sliding block for sliding by the sliding mechanism, a lower sliding block matched with the upper sliding block, and a guide wire positioned between the upper sliding block and the lower sliding block, wherein the sliding mechanism, the upper sliding block, the guide wire and the lower sliding block are sequentially arranged in the handle assembly from top to bottom; when the sliding mechanism is positioned at one side of the upper sliding block, the sliding mechanism and the upper sliding block are in a compression state, so that the locking function between the guide wire and the sliding block is realized; when the sliding mechanism is positioned at the other side of the upper sliding block, the sliding mechanism and the upper sliding block are in a loose state, so that the unlocking function between the guide wire and the sliding block is realized.
Optionally, in the guide wire locking structure, the sliding structure includes a locking button having at least one through hole and a pin rod disposed 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; after the locking button presses the upper sliding block, the guide wire is locked with the upper sliding block and the lower sliding block.
Optionally, the handle assembly comprises a shell, a sliding hole for installing the locking button is arranged at the upper part of the front end of the shell, and inclined slots are respectively arranged at two sides of the upper part of the front end of the shell; 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 is clamped in the inclined grooves on two sides of the shell, the upper sliding block is provided with inclined planes matched with the inclined grooves, and the pin rod can move on the upper sliding block in an inclined plane mode under the guidance of the inclined grooves, 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 pressed or released state, and the locking or unlocking function is achieved.
Optionally, the housing includes an upper housing and a lower housing, which can be closed as a single piece.
Optionally, the inner bottom of the shell is provided with a straight groove, and the lower part of the front end of the rack is matched with the straight groove through a rack bulge so as to realize the sliding of the rack in the straight groove.
Optionally, the handle assembly further comprises a coaxial needle and a needle tube, wherein the coaxial needle is positioned at the top end of the shell, the tail end of the needle tube is arranged in the coaxial needle, and the guide wire penetrates through the coaxial needle and the needle tube.
According to the technical scheme, the guide wire is pushed by the roller, and the labor is saved when the guide wire is sent out or retracted due to the labor saving effect of the gear; the handle is difficult to shake during operation, and the positioning accuracy of the guide wire is improved.
Drawings
For purposes of illustration and not limitation, the utility model will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
FIG. 1 is a schematic illustration of one configuration of a breast positioning needle with a roller guide wire movement configuration in accordance with the present utility model;
FIG. 2 is an exploded schematic view of one construction of a breast positioning needle with a roller guide wire movement structure in accordance with the present utility model;
FIG. 3 is a schematic illustration of one configuration of a breast positioning needle with a roller guide wire movement configuration in accordance with the present utility model;
FIG. 4 is a schematic illustration of one configuration of a breast positioning needle with a roller guide wire movement configuration in accordance with the present utility model;
wherein, 1, a handle component; 11. an upper housing; 111. a slide hole; 112. a chute; 113. a roller slide hole; 12. a lower housing; 121. a straight groove; 13. a coaxial needle; 131. a coaxial needle handle; 132. a coaxial needle tube; 2. a guidewire locking structure; 21. a sliding mechanism; 211. a lock button; 212. a pin rod; 213. a through hole; 22. an upper slider; 221. an inclined plane; 23. a lower slide block; 24. a guide wire; 3. a guide wire moving structure; 31. a roller; 311. a concentric gear; 32. a rack; 321. the rack is convex.
Detailed Description
In an exemplary embodiment of the present utility model, a mammary gland positioning needle with a roller type guide wire moving structure is provided, and as shown in fig. 1, the mammary gland positioning needle comprises a handle assembly 1, a guide wire locking structure 2 and a guide wire moving structure 3, wherein the guide wire locking structure 2 and the guide wire moving structure 3 are arranged in the handle assembly 1, the guide wire locking structure 2 is positioned at the front end of the handle assembly 1 according to the needle inserting direction, and the guide wire moving structure 3 is positioned at the rear end of the handle assembly 1.
As shown in fig. 2, 3 and 4, the wire locking structure 2 includes a slide mechanism 21, an upper slider 22 for sliding the slide mechanism, a lower slider 23 mated with the upper slider, and a wire 24 located 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 includes a pin rod 212, the pin rod 212 being located in the through-hole 213 and penetrating the lock button 211, and exposing a section on both sides of the lock button 211. The upper slide 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 lock 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 housing 11, a lower housing 12 and a coaxial needle 13; the upper housing 11 and the lower housing 12 can be closed in a plug-in manner to form a handle body which is provided with a detachable coaxial needle 13 at one end of the guide wire locking structure 2. Coaxial needle 13 includes coaxial needle handle 131 and coaxial needle tube 132, coaxial needle tube 132 can be inserted into coaxial needle handle 131 to constitute 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 slide block 22 is provided with inclined planes 221 matched with the inclined slots 112, the pin rod 212 is clamped in the inclined slots 112 on two sides of the upper shell, and under the guidance of the inclined slots 112, the pin rod 212 can move in an inclined plane on the upper slide block 22, so that the locking button 211 is pressed or separated from the surface of the upper slide block 22, the guide wire 24, the upper slide block 22 and the lower slide block 23 are in a pressed or released 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 shell 11 is provided with a roller sliding hole 113, and the bottom of the lower shell 12 is provided with a straight groove 121.
The guide wire moving structure 3 is a roller type guide wire moving structure and comprises a roller 31 and a rack 32, wherein 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 can drive the rack 32 to advance or retract after being meshed with the rack 32. The rack 32 is matched with the straight groove 121 through the rack protrusion 321 at the lower part of the front end of the rack 32, so that the rack 32 slides in the straight groove 121.
When the mammary gland positioning needle is used, the guide wire 24 is locked or unlocked with the sliding block through the locking button 211, and then the sliding block is driven to advance and retreat through the roller 31, so that the guide wire 24 is advanced and retreated. The guide wire 24 is held in a straight 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 bends and spirally pierces the tissue to achieve positioning. If the position of the positioning is found to be wrong, the guide wire 24 can be pulled back by the roller 31, the guide wire 24 is straightened at the tip position of the coaxial wire, and the coaxial wire 13 can be retracted again.
The above embodiments do not limit the scope of the present utility model. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives can occur depending upon design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. A mammary gland positioning needle with roller type guide wire moving structure, which is characterized by comprising:
a handle assembly;
the guide wire locking structure is used for locking or unlocking the guide wire and the sliding block;
the guide wire moving structure adopts a roller type guide wire moving structure to push the sliding block in a locking state and is used for driving the guide wire to move forwards or backwards;
the guidewire locking structure and the guidewire movement structure are disposed in the handle assembly.
2. The mammary gland positioning needle with the roller type guide wire moving structure according to claim 1, wherein the guide wire moving 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 slider; the concentric gear is meshed with the rack and can drive the rack to advance or retreat.
3. The breast positioning needle with roller guide wire movement structure of claim 1, wherein the guide wire locking structure is located at one end of the handle assembly and the guide wire movement structure is located at the other end of the handle assembly.
4. The breast positioning needle with a roller type guide wire moving structure according to claim 1, wherein the guide wire locking structure comprises a sliding mechanism, an upper sliding block for sliding of the sliding mechanism, a lower sliding block matched with the upper sliding block, and a guide wire positioned between the upper sliding block and the lower sliding block, wherein the sliding mechanism, the upper sliding block, the guide wire and the lower sliding block are sequentially arranged from top to bottom in the handle assembly; when the sliding mechanism is positioned at one side of the upper sliding block, the sliding mechanism and the upper sliding block are in a compression state, so that the locking function between the guide wire and the sliding block is realized; when the sliding mechanism is positioned at the other side of the upper sliding block, the sliding mechanism and the upper sliding block are in a loose state, so that the unlocking function between the guide wire and the sliding block is realized.
5. The breast positioning needle with a roller-type guide wire moving structure according to claim 4, wherein 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.
6. The mammary gland positioning needle with the roller type guide wire moving structure according to claim 4, wherein 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; after the locking button presses the upper sliding block, the guide wire is locked with the upper sliding block and the lower sliding block.
7. The mammary gland positioning needle with the roller type guide wire moving structure according to claim 5, wherein the handle assembly comprises a shell, a sliding hole for installing the locking button is arranged at the upper part of the front end of the shell, and inclined slots are respectively arranged at two sides of the upper part of the front end of the shell; 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 is clamped in the inclined grooves on two sides of the shell, the upper sliding block is provided with inclined planes matched with the inclined grooves, and the pin rod can move on the upper sliding block in an inclined plane mode under the guidance of the inclined grooves, 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 pressed or released state, and the locking or unlocking function is achieved.
8. The breast positioning needle with roller guide wire movement structure of claim 7, wherein the housing comprises an upper housing and a lower housing, the upper housing and the lower housing being closable as a single unit.
9. The mammary gland positioning needle with the roller type guide wire moving structure according to claim 7, wherein a straight groove is formed in the inner bottom of the shell, and the lower portion of the front end of the rack is matched with the straight groove through a rack protrusion to realize sliding of the rack in the straight groove.
10. The breast positioning needle with roller guide wire movement structure of claim 7, wherein the handle assembly further comprises a coaxial needle and a needle cannula, the coaxial needle being positioned at the top end of the housing, the distal end of the needle cannula being disposed within the coaxial needle, the guide wire extending through the coaxial needle and the needle cannula.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022214006323 | 2022-06-07 | ||
| CN202221400632 | 2022-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220385193U true CN220385193U (en) | 2024-01-26 |
Family
ID=89604626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321392656.3U Active CN220385193U (en) | 2022-06-07 | 2023-06-02 | Mammary gland positioning needle with roller type guide wire moving structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220385193U (en) |
-
2023
- 2023-06-02 CN CN202321392656.3U patent/CN220385193U/en active Active
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