CN219021457U - Variable diameter type auxiliary guide - Google Patents
Variable diameter type auxiliary guide Download PDFInfo
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- CN219021457U CN219021457U CN202320024777.6U CN202320024777U CN219021457U CN 219021457 U CN219021457 U CN 219021457U CN 202320024777 U CN202320024777 U CN 202320024777U CN 219021457 U CN219021457 U CN 219021457U
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- variable
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- sliding rail
- fixing piece
- needle
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Abstract
The utility model provides a variable-diameter auxiliary guide, which comprises a variable-diameter needle channel piece, an upper fixing piece, a sliding rail component, a lower fixing piece, a base and a glue paste, wherein the variable-diameter needle channel piece, the upper fixing piece, the sliding rail component, the lower fixing piece, the base and the glue paste are sequentially arranged from top to bottom, the sliding rail component provides a cross-shaped sliding rail channel and forms an accommodating space with the base, the lower fixing piece is arranged in the accommodating space, the top end of the lower fixing piece penetrates through the sliding rail channel to be connected with the upper fixing piece, and the lower end of the variable-diameter needle channel piece is detachably fixed on the fixing piece; the variable-diameter needle track piece is provided with a main shell, a movable sliding block arranged in the main shell and an adjusting piece capable of driving the movable sliding block to move so as to adjust the size of the needle inlet hole; the variable-diameter needle track piece can drive the upper fixing piece and the lower fixing piece to move along the cross-shaped sliding rail channel under the driving of external force, so that the direction of the needle inlet hole can be adjusted. The utility model is applicable to puncture needles with different outer diameters, can realize omnibearing puncture with an inclined angle of 0-75 degrees, and has simple operation, good universality and strong practicability.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a variable-diameter auxiliary guide.
Background
Lung puncture is commonly used for diagnosis of lung lesions, operation path planning is carried out after the position of a focus is determined through a puncture navigation system, a doctor punctures a target point by using a puncture needle under the guidance of a virtual image, but in the puncturing process, the puncture force and the puncture angle are difficult to control, the deviation of the position reaching the target point is larger, and serious conditions can cause injury to a patient.
The guide can be used for fixing the direction of the puncture needle, after confirming the puncture angle, the needle inlet hole on the guide is adjusted to a relevant angle, the guide is stuck to the needle inlet position of a patient and then the puncture is carried out, but the aperture of the puncture hole of the existing guide is unchanged and cannot be suitable for various types of puncture needles, and aiming at the technical problem, the development of a variable-diameter auxiliary guide is needed.
Disclosure of Invention
In view of the drawbacks of the prior art, an object of the present utility model is to provide a variable diameter auxiliary guide.
The utility model provides a variable-diameter auxiliary guide, which comprises a variable-diameter needle track piece, an upper fixing piece, a sliding rail component, a lower fixing piece, a base and a glue paste, wherein the variable-diameter needle track piece, the upper fixing piece, the sliding rail component, the lower fixing piece, the base and the glue paste are sequentially arranged from top to bottom;
the adhesive plaster is used for being adhered to the skin of a patient so as to fix the guide device, the base is fixed on the adhesive plaster, the sliding rail assembly provides a cross-shaped sliding rail channel and forms an accommodating space with the base, the lower fixing piece is arranged in the accommodating space, the top end of the lower fixing piece penetrates through the sliding rail channel to be connected with the upper fixing piece, and the lower end of the variable-diameter needle path piece is detachably fixed on the lower fixing piece;
the variable-diameter needle track piece is provided with a main shell, a movable sliding block arranged in the main shell and an adjusting piece capable of driving the movable sliding block to move so as to adjust the size of the needle inlet hole;
the variable-diameter needle track piece can drive the upper fixing piece and the lower fixing piece to move along the cross-shaped sliding rail channel under the driving of external force, so that the direction of the needle inlet hole can be adjusted.
Preferably, the sliding rail assembly comprises a first arc-shaped sliding rail and a second arc-shaped sliding rail which is arranged in a crossing manner with the first arc-shaped sliding rail, wherein the first arc-shaped sliding rail is rotatably fixed on the base and provided with a first sliding rail channel, and the second arc-shaped sliding rail is rotatably fixed on the base and provided with a second sliding rail channel.
Preferably, a rubber pad is arranged in the needle inlet hole and is positioned between the main shell and the movable sliding block.
Preferably, two ends of the first arc-shaped sliding rail and the second arc-shaped sliding rail are respectively in running fit with the base through respective rotating shafts.
Preferably, the reducing needle track member has an unlocked state and a locked state; in an unlocking state, the variable-diameter needle track piece can slide along the cross-shaped slide rail channel; in the locked state, the variable-diameter needle track member is not allowed to slide along the cross-shaped slide rail channel.
Preferably, the side of the main housing facing the moving slide has a first recess, and the side of the moving slide facing the main housing has a second recess facing the first recess.
Preferably, a gap is formed between the lower end of the lower fixing member and the base.
Preferably, the top end of the lower fixing piece is a variable diameter end, the outer diameter of the variable diameter end is larger than the fixing piece through hole of the upper fixing piece, and shrinkage joints are arranged on two sides of the variable diameter end so that the fixing piece through hole allows the variable diameter end to pass through.
Preferably, the adjusting piece adopts a push-pull nut, and the side surface of the main shell is provided with an internal threaded hole matched with the push-pull nut.
Preferably, one end of the adjusting piece facing the movable sliding block is provided with a protruding head, and the movable sliding block is provided with a limiting groove matched with the protruding head so that the adjusting piece can drive the movable sliding block to move through the protruding head located in the limiting groove.
Compared with the prior art, the utility model has the following beneficial effects:
the variable-diameter type auxiliary guide device is applicable to puncture needles with different outer diameters, the omnibearing puncture with the inclined angle of 0-75 degrees can be realized through the double-arc-shaped sliding rail, and the variable-diameter type auxiliary guide device is not easy to fall off from a patient through the adhesive tape, so that the operation is simple, the universality is good, and the practicability is strong.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the present utility model with its structure broken away;
FIG. 3 is a schematic view of a reduced gauge needle with its structure broken away;
FIG. 4 is a schematic view of the structure when the needle inlet hole is adjusted to the maximum inner diameter;
FIG. 5 is a schematic view of the structure when the needle inlet is adjusted to the minimum inner diameter;
FIG. 6 is a schematic view of the structure of the guide as it slides in different directions;
FIG. 7 is a schematic view of the structure of the variable diameter needle track in an unlocked state;
FIG. 8 is an enlarged schematic view of a portion of the structure of FIG. 7;
FIG. 9 is a schematic view of the structure of the variable diameter needle track in a locked state;
fig. 10 is an enlarged schematic view of a portion of the structure of fig. 9.
The figure shows:
reducing needle track member 1
Limiting boss 21
Fastener through hole 22
Diameter-variable end 31
First arc slide rail 4
Second arc slide rail 5
The accommodating space 61
Adhesive 7
Internal threaded hole 111
Moving slide 12
Outer wall clamping groove 113
Limiting groove 122
Adjusting member 13
Raised head 131
Needle inlet 14
Rubber pad 15
Detailed Description
The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.
The utility model provides a variable-diameter auxiliary guide, which is shown in fig. 1 and 2 and comprises a variable-diameter needle channel part 1, an upper fixing part 2, a sliding rail component, a lower fixing part 3, a base 6 and a glue patch 7 which are sequentially arranged from top to bottom, wherein a needle inlet hole 14 is formed in the center of the whole guide, so that a doctor can conveniently insert a needle, the glue patch 7 is adhered to the skin of a patient to fix the guide, the needle inlet position is determined, the accurate puncture is facilitated, the base 6 is fixed on the glue patch 7, the glue patch 7 is preferably adhered to the glue patch 7, the sliding rail component provides a cross-shaped sliding rail channel, an accommodating space 61 is formed between the sliding rail component and the base 6, the lower fixing part 3 is arranged in the accommodating space 61, a gap is formed between the lower end of the lower fixing part 3 and the base 6, the top end of the lower fixing part 3 penetrates through the sliding rail channel to be connected with the upper fixing part 2, the lower end of the variable-diameter needle channel part 1 is detachably fixed on the lower fixing part 3, the lower variable-diameter needle channel part 1 is driven by external force to move along the sliding rail channel to enable the upper fixing part 2 and the lower fixing part 3 to move along the cross-shaped channel to adjust the needle inlet hole 14, and the needle inlet direction can be more accurate as shown in the figure 6.
As shown in fig. 3, the variable-diameter needle track member 1 is provided with a main casing 11, an upper cover 16 arranged at the upper part of the main casing 11, a moving slide block 12 arranged in the main casing 11 and an adjusting member 13 capable of driving the moving slide block 12 to move so as to adjust the size of the needle inlet hole 14, in one possible embodiment, the adjusting member 13 adopts a push-pull nut, the side surface of the main casing 11 is provided with an internal threaded hole 111 matched with the push-pull nut, the adjusting member 13 is screwed into the internal threaded hole 111 through external threads of the adjusting member 13 to realize inward or outward movement of the main casing 11, one end of the adjusting member 13 facing the moving slide block 12 is provided with a raised head 131, the raised head 131 is detachably arranged at the end part of the adjusting member 13, and the moving slide block 12 is provided with a limiting groove 122 matched with the raised head 131 so that the adjusting member 13 can drive the moving slide block 12 to move through the raised head 131 positioned in the limiting groove 122, and then the needle inlet hole 14 is adjusted or reduced.
Further, the size of the needle inlet hole 14 can be adjusted by screwing the push-pull nut, and the maximum size can be adjusted to the inner diameter D 1 As shown in fig. 4, the minimum adjustable diameter D 2 As shown in fig. 5, the utility model can adapt to puncture needles with different sizes by screwing the push-pull nut, thereby meeting the requirements of different diseases and patients.
As shown in fig. 2, the sliding rail assembly includes a first arc sliding rail 4 and a second arc sliding rail 5 intersecting with the first arc sliding rail 4, the first arc sliding rail 4 is rotatably fixed on the base 6 and has a first sliding rail channel 41, the second arc sliding rail 5 is rotatably fixed on the base 6 and has a second sliding rail channel 51, the first sliding rail channel 41 and the second sliding rail channel 51 are intersecting matched to form a cross sliding rail channel, in one possible embodiment, two ends of the first arc sliding rail 4 and the second arc sliding rail 5 are respectively rotating matched with the base 6 through respective rotating shafts, and the variable diameter needle track 1 can realize omnibearing adjustment of an inclination angle of 0 ° to 75 °.
In practical application, the both sides of the bottom of going up mounting 2 have spacing boss 21, form the guide recess between two spacing bosses 21, and the part of first arc slide rail 4 is located the guide recess and makes upward mounting 2 can slide along first arc slide rail 4 or carry first arc slide rail 4 to slide along second slide rail passageway 51 through spacing boss 21 for whole director adjusts more accurately.
The rubber pad 15 is arranged in the needle inlet 14, the rubber pad 15 is positioned between the main shell 11 and the movable sliding block 12, a first notch 112 is formed in the side, facing the movable sliding block 12, of the main shell 11, a second notch 121 opposite to the first notch 112 is formed in the side, facing the movable sliding block 12, of the main shell 11, the first notch 112 and the second notch 121 are oppositely arranged to form a part of the needle inlet 14, the rubber pad 15 is stuck in the second notch 121, and the rubber pad 15 is beneficial to reducing shaking of the puncture needle in the needle inlet 14.
The upper fixing piece 2 is clamped on the lower fixing piece 3, the top end of the lower fixing piece 3 is a variable diameter end 31, the outer diameter of the variable diameter end 31 is larger than that of the fixing piece through hole 22 of the upper fixing piece 2, shrinkage joints 311 are formed in two sides of the variable diameter end 31, and when the variable diameter end 31 is extruded, the shrinkage joints 311 are narrowed to enable the fixing piece through hole 22 to allow the variable diameter end 31 to pass through.
The variable-diameter needle track member 1 has an unlocking state and a locking state, the bottom end of the main shell 11 is provided with an outer wall clamping groove 113, the inner wall of the variable-diameter end 31 of the fixing member 3 is provided with an inner wall convex column 312 matched with the outer wall clamping groove 113, the outer wall clamping groove 113 is positioned on one side of the bottom end of the main shell 11, when the variable-diameter needle track member 1 is inserted into the variable-diameter end 31, the variable-diameter needle track member 1 is rotated to enable the inner wall convex column 312 to enter the outer wall clamping groove 113 or to be separated from the outer wall clamping groove 113 so as to realize the conversion between the unlocking state and the locking state, as shown in fig. 7 and 8, in the unlocking state, the inner wall convex column 312 is not clamped into the outer wall clamping groove 113, so that the inserting state of the upper fixing member 2 and the lower fixing member 3 is relatively loose, and the variable-diameter needle track member 1 can slide along a cross-shaped slide rail channel; in the locked state, as shown in fig. 9 and 10, the inner wall convex column 312 is clamped into the outer wall clamping groove 113, so that the upper fixing piece 2 and the lower fixing piece 3 are stably clamped in the inserted state, and the variable-diameter needle track piece 1 is not allowed to slide along the cross-shaped sliding rail channel.
The working principle of the utility model is as follows:
before the puncture operation, the fixing position of the guide is determined according to the focus position of a patient, the adhesive tape 7 is stuck at the puncture point on the body surface of the patient, the variable-diameter needle path member 1 is adjusted to an unlocking state, the variable-diameter needle path member 1 is driven to slide along a cross-shaped sliding rail channel and adjust the direction of the needle inlet hole 14, the variable-diameter needle path member 1 is adjusted to a locking state when the variable-diameter needle path member 1 is adjusted to a required direction, and at the moment, the needle inlet hole 14 is adjusted to a required inner diameter by screwing a push-pull nut, and then the puncture needle is used for puncture.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. The variable-diameter auxiliary guide is characterized by comprising a variable-diameter needle path part (1), an upper fixing part (2), a sliding rail component, a lower fixing part (3), a base (6) and a sticky tape (7), wherein the variable-diameter needle path part is sequentially arranged from top to bottom, and a needle inlet hole (14) is formed in the center of the variable-diameter needle path part;
the adhesive plaster (7) is used for being adhered to the skin of a patient so as to fix the guide device, the base (6) is fixed on the adhesive plaster (7), the sliding rail assembly provides a cross-shaped sliding rail channel and forms an accommodating space (61) with the base (6), the lower fixing piece (3) is arranged in the accommodating space (61) and the top end of the lower fixing piece passes through the sliding rail channel to be connected with the upper fixing piece (2), and the lower end of the variable-diameter needle track piece (1) is detachably fixed on the lower fixing piece (3);
the variable-diameter needle track member (1) is provided with a main shell (11), a movable sliding block (12) arranged in the main shell (11) and an adjusting member (13) capable of driving the movable sliding block (12) to move so as to adjust the size of an needle inlet hole (14);
the variable-diameter needle track part (1) can drive the upper fixing part (2) and the lower fixing part (3) to move along the cross-shaped sliding rail channel under the driving of external force, so that the orientation of the needle inlet hole (14) can be adjusted.
2. The variable-diameter auxiliary guide according to claim 1, characterized in that the sliding rail assembly comprises a first arc-shaped sliding rail (4) and a second arc-shaped sliding rail (5) arranged crosswise to the first arc-shaped sliding rail (4), the first arc-shaped sliding rail (4) being rotatably fixed on the base (6) and having a first sliding rail channel (41), the second arc-shaped sliding rail (5) being rotatably fixed on the base (6) and having a second sliding rail channel (51).
3. Variable-diameter auxiliary guide according to claim 1, characterized in that a rubber pad (15) is arranged in the needle inlet hole (14) and the rubber pad (15) is located between the main housing (11) and the mobile slider (12).
4. The variable-diameter auxiliary guide according to claim 2, wherein two ends of the first arc-shaped sliding rail (4) and the second arc-shaped sliding rail (5) are respectively in running fit with the base (6) through respective rotating shafts.
5. Variable-diameter auxiliary guide according to claim 1, characterized in that the variable-diameter needle track (1) has an unlocked state and a locked state; in an unlocking state, the variable-diameter needle track member (1) can slide along the cross-shaped slide rail channel; in the locked state, the variable-diameter needle track member (1) is not allowed to slide along the cross-shaped slide rail channel.
6. Variable-diameter auxiliary guide according to claim 1, characterized in that the side of the main housing (11) facing the moving slide (12) has a first recess (112), and the side of the moving slide (12) facing the main housing (11) has a second recess (121) facing the first recess (112).
7. Variable-diameter auxiliary guide according to claim 1, characterized in that a gap is provided between the lower end of the lower fixture (3) and the base (6).
8. Variable-diameter auxiliary guide according to claim 1, characterized in that the top end of the lower fixing member (3) is a variable-diameter end (31), the outer diameter of the variable-diameter end (31) is larger than the fixing member through hole (22) of the upper fixing member (2), and both sides of the variable-diameter end (31) are provided with shrinkage joints (311) so that the fixing member through hole (22) allows the variable-diameter end (31) to pass through.
9. Variable-diameter auxiliary guide according to claim 1, characterized in that the adjustment member (13) is a push-pull nut, the side of the main housing (11) having an internally threaded hole (111) matching the push-pull nut.
10. Variable-diameter auxiliary guide according to claim 1, characterized in that the end of the adjusting element (13) facing the moving slide (12) has a nose (131), the moving slide (12) has a limit groove (122) matching the nose (131) so that the adjusting element (13) can move the moving slide (12) by means of the nose (131) located in the limit groove (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320024777.6U CN219021457U (en) | 2023-01-05 | 2023-01-05 | Variable diameter type auxiliary guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320024777.6U CN219021457U (en) | 2023-01-05 | 2023-01-05 | Variable diameter type auxiliary guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219021457U true CN219021457U (en) | 2023-05-16 |
Family
ID=86289344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320024777.6U Active CN219021457U (en) | 2023-01-05 | 2023-01-05 | Variable diameter type auxiliary guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219021457U (en) |
-
2023
- 2023-01-05 CN CN202320024777.6U patent/CN219021457U/en active Active
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