CN216090599U - Double-cavity puncture needle for nephrology department - Google Patents
Double-cavity puncture needle for nephrology department Download PDFInfo
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- CN216090599U CN216090599U CN202122381304.5U CN202122381304U CN216090599U CN 216090599 U CN216090599 U CN 216090599U CN 202122381304 U CN202122381304 U CN 202122381304U CN 216090599 U CN216090599 U CN 216090599U
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- puncture needle
- handle
- puncture
- block
- fixedly arranged
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- 238000009950 felting Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 2
- 230000008094 contradictory effect Effects 0.000 claims 1
- 210000003813 thumb Anatomy 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 description 8
- 210000001519 tissue Anatomy 0.000 description 6
- 210000003734 kidney Anatomy 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 208000017169 kidney disease Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000005084 renal tissue Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Abstract
The utility model discloses a double-cavity puncture needle for nephrology department, which comprises: the puncture needle handle, the handle internally mounted of puncture needle handle has the drive block, and the drive block is inside to be seted up flutedly, and this recess is inside fixedly is provided with reset spring simultaneously to reset spring keeps away from the one end of drive block and holds the fixed setting of the inside left side wall of handle, and the drive block right side sets up with the transfer line is fixed, and the transfer line keeps away from the one end of drive block and the fixed setting of piston. This needle is worn to nephrology dept two-chamber, loosen the atress piece, under reset rebound's of reset spring effect, make the piston move left, the shutoff work to the puncture chamber is cancelled, peg graft at the focus through the felting needle this moment, the completion is to the sample work of target location, after the sample finishes, take out the felting needle from the target location, the atress piece is held to the thumb at last, drive piston downstream, release the intracavitary portion's cell tissue that punctures, accomplish the sample operation, and easy operation is convenient, and the sample of being convenient for.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a double-cavity puncture needle for nephrology department.
Background
Currently, the kidney puncture biopsy in nephrology is an extremely effective auxiliary means for diagnosing kidney diseases clinically, but the nephrology in general hospitals is not easy to perform the operation of taking out a kidney living body sample by puncture because of no proper puncture needle; in addition, the current operation is generally assisted by an ultrasonic instrument, and the puncture operation is assisted by a display screen of the ultrasonic instrument; however, due to the internal structure of the needle, the contour of the needle body is not easily clearly displayed on the ultrasound display screen.
In order to solve the problems, through retrieval, the patent with the publication number of CN202681985U discloses a double-cavity puncture needle for nephrology department, and the publication proposes that when the double-cavity puncture needle is used, the depth of puncture is determined firstly, then a fixing ring is moved to the scale required by a needle body and fixed, then puncture is carried out, and if ultrasonic equipment is required for assistance, an air cavity closed at the front end inside the puncture needle can clearly display the interface of the puncture needle and kidney tissues on a screen of the ultrasonic equipment so as to help an operator to judge and perform an operation. ".
However, when the living tissue is taken out from the inside of the puncture cavity, the living tissue needs to be taken out by a tool, and the living tissue cannot be completely taken out from the inside of the puncture cavity, and the problem that the taking-out method is complicated exists.
In view of the above, the present invention has been made in view of the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-cavity puncture needle for nephrology department, which solves the defects mentioned in the background technology.
In order to realize the above-mentioned purpose, provide a nephrology dept two-chamber needle, include:
the puncture needle comprises a puncture needle handle, wherein a driving block is arranged in a holding handle of the puncture needle handle, a groove is formed in the driving block, a return spring is fixedly arranged in the groove, one end, far away from the driving block, of the return spring is fixedly arranged on the left side wall in the holding handle, the right side of the driving block is fixedly arranged on a transmission rod, and one end, far away from the driving block, of the transmission rod is fixedly arranged on a piston;
the positioning disc of the limiting structure is sleeved outside the pricking pin, and the end part of the positioning disc is fixedly arranged with the limiting disc;
the puncture needle comprises a puncture needle body, wherein a puncture cavity is formed in the end part of a puncture needle of the puncture needle body, a piston is arranged in the puncture cavity, and the left end of the puncture needle is fixedly arranged with a screw connection end.
Preferably, the puncture needle handle comprises a handle, a sliding groove, a stress block, a sliding block, a driving block, a return spring, a right fixing plate, a guide rod and a left fixing plate.
Preferably, two groups of guide holes which are arranged oppositely are formed in the driving block, guide rods are respectively inserted into the two groups of guide holes, and the guide rods are fixedly installed on the surface of the inner wall of the handle.
Preferably, guide bar one end and the fixed setting of right fixed plate, and the other end and the fixed setting of left fixed plate of guide bar, right fixed plate and the equal fixed mounting of left fixed plate are inside the handle, and the diameter of right fixed plate and left fixed plate is unanimous.
Preferably, the end of the driving block is fixedly arranged with the sliding block, one end of the sliding block, which is far away from the driving block, is fixedly arranged with the stress block, the sliding block is arranged inside the sliding groove in a sliding manner, the sliding groove is arranged on the outer side surface of the handle, and the section of the stress block is of a right-angle trapezoidal structure.
Preferably, limit structure includes positioning disk, spacing dish and locating piece, and the perforation has been seted up to positioning disk inside, and positioning disk inner wall and the fixed setting of locating piece, and the locating hole has been seted up to the locating piece is inside simultaneously to the fixed screw tip passes the perforation and the installation of locating hole and constant head tank conflict, and the locating piece slides and sets up inside the constant head tank, and the constant head tank is seted up on the lateral wall surface of felting needle.
Preferably, the puncture needle body comprises a puncture needle, a puncture cavity, a piston, a transmission rod, a positioning groove and a screwing end, the ends of the piston and the puncture needle are obliquely arranged, and the end of the puncture needle is screwed in a screwing hole formed in the right end of the handle through the screwing end.
Compared with the prior art, the utility model has the beneficial effects that: the stress block is loosened, the piston moves leftwards under the action of the reset rebound of the reset spring, the plugging work of the puncture cavity is cancelled, the puncture needle is inserted into a focus at the moment to finish the sampling work of the target position, after the sampling is finished, the puncture needle is pulled away from the target position, and finally, the stress block is held by the thumb to drive the piston to move downwards, so that the cell tissue in the puncture cavity is pushed out, the sampling operation is finished, the operation is simple and convenient, and the sampling is convenient.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention shown in FIG. 1;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along line B-B in FIG. 2;
FIG. 5 is a schematic cross-sectional view taken along line C-C in FIG. 2 according to the present invention;
FIG. 6 is a schematic cross-sectional view taken along line D-D in FIG. 2 according to the present invention.
Reference numbers in the figures: 1. a puncture needle handle; 11. a handle; 12. a chute; 13. a stress block; 14. a slider; 15. A drive block; 16. a return spring; 17. a right fixing plate; 18. a guide bar; 19. a left fixing plate; 2. a limiting structure; 21. positioning a plate; 22. a limiting disc; 23. positioning blocks; 3. puncturing the needle body; 30. a needle; 31. A puncture lumen; 32. a piston; 33. a transmission rod; 34. positioning a groove; 35. a screwed end.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a double lumen needle for nephrology department, comprising: the puncture needle comprises a puncture needle handle 1, a limiting structure 2 and a puncture needle body 3;
a driving block 15 is arranged in the handle 11 of the puncture needle handle 1, a groove is formed in the driving block 15, a return spring 16 is fixedly arranged in the groove, one end, far away from the driving block 15, of the return spring 16 is fixedly arranged on the left side wall in the handle 11, the right side of the driving block 15 is fixedly arranged on a transmission rod 33, and one end, far away from the driving block 15, of the transmission rod 33 is fixedly arranged on a piston 32;
the positioning disc 21 of the limiting structure 2 is sleeved outside the puncture needle 30, and the end part of the positioning disc 21 is fixedly arranged with the limiting disc 22;
the end of the puncture needle 30 of the puncture needle body 3 is provided with a puncture cavity 31, a piston 32 is arranged in the puncture cavity 31, and the left end of the puncture needle 30 is fixedly arranged with a screw joint end 35.
When the puncture needle is used, firstly, the stress block 13 is held by hand, the stress block 13 drives the driving block 15 to move downwards, so that the end part of the puncture cavity 31 is blocked by the piston 32, the situation that cell tissues at non-focus positions are arranged in the puncture cavity 31 when the puncture needle 30 extends into a focus is avoided, when the end part of the puncture needle 30 extends into the focus, the stress block 13 is loosened, under the action of resetting rebounding of the reset spring 16, the piston 32 moves leftwards, the blocking work of the puncture cavity 31 is cancelled, at the moment, the puncture needle 30 is inserted into the focus, the sampling work of a target position is completed, after sampling is completed, the puncture needle 30 is pulled away from the target position, and finally, the stress block 13 is held by a thumb, so that the piston 32 is driven to move downwards, the cell tissues in the puncture cavity 31 are pushed out, the sampling work is completed, the operation is simple and convenient, and the sampling is convenient.
In a preferred embodiment, the puncture needle handle 1 comprises a handle 11, a sliding groove 12, a force-bearing block 13, a sliding block 14, a driving block 15, a return spring 16, a right fixing plate 17, a guide rod 18 and a left fixing plate 19.
As shown in fig. 1 and 2: when the puncture needle handle 1 is held by hand, the thumb presses the stress block 13 to drive the driving block 15 to move downwards, the return spring 16 is in an extended state at the moment, and when the stress block 13 is released, the return spring 16 resets and rebounds to drive the piston 32 to recover to an initial state.
In a preferred embodiment, two sets of oppositely disposed guide holes are formed in the driving block 15, and guide rods 18 are respectively inserted into the two sets of guide holes, and the guide rods 18 are fixedly mounted on the inner wall surface of the handle 11.
As shown in fig. 1: when the driving block 15 moves transversely in the handle 11, two groups of guide rods 18 are inserted in the driving block 15, and the guide rods 18 can limit and guide the driving block 15 when moving, so that the driving block 15 is prevented from inclining when moving transversely.
As a preferred embodiment, one end of the guide rod 18 is fixedly disposed on the right fixing plate 17, and the other end of the guide rod 18 is fixedly disposed on the left fixing plate 19, both the right fixing plate 17 and the left fixing plate 19 are fixedly disposed inside the handle 11, and the diameters of the right fixing plate 17 and the left fixing plate 19 are the same.
As a preferred embodiment, the end of the driving block 15 is fixed to the sliding block 14, and one end of the sliding block 14 away from the driving block 15 is fixed to the force-receiving block 13, the sliding block 14 is slidably disposed inside the sliding groove 12, the sliding groove 12 is disposed on the outer surface of the handle 11, and the cross section of the force-receiving block 13 is a right-angled trapezoid structure.
As shown in fig. 2: the end part of the stress block 13 is obliquely arranged, so that the stress block 13 can be conveniently stressed, the handle 11 is held by hand, and the thumb is arranged on the stress block 13, so that the driving block 15 can be conveniently operated.
As a preferred embodiment, the position limiting structure 2 includes a positioning plate 21, a position limiting plate 22 and a positioning block 23, a through hole is formed in the positioning plate 21, an inner wall of the positioning plate 21 is fixedly disposed with the positioning block 23, a positioning hole is formed in the positioning block 23, an end portion of a fixing screw passes through the through hole and the positioning hole to be mounted in contact with the positioning groove 34, the positioning block 23 is slidably disposed in the positioning groove 34, and the positioning groove 34 is formed in an outer side wall surface of the lancet 30.
As shown in fig. 1 and 6: limiting structure 2's setting can carry out spacing work to the depth of penetration of acupuncture needle 30, avoids the doctor in the operation, and the too dark of inserting to the focus avoids the unnecessary injury.
The outside of the puncture needle 30 is provided with scale marks, and the position of the positioning disc 21 on the puncture needle 30 is limited and fixed through a fixing screw.
In a preferred embodiment, the puncture needle body 3 comprises a puncture needle 30, a puncture cavity 31, a piston 32, a transmission rod 33, a positioning groove 34 and a screw joint end 35, the ends of the piston 32 and the puncture needle 30 are arranged obliquely, and the end of the puncture needle 30 is screwed in a screw joint hole formed in the right end of the handle 11 through the screw joint end 35.
As shown in fig. 2: the end of the puncture needle 30 is screwed in a screw connection hole arranged at the right end of the handle 11 through a screw connection end 35, and the puncture needle 30 is of a detachable structure, so that the blunt puncture needle 30 can be conveniently replaced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a nephrology dept double-chamber needle, its characterized in that includes:
the puncture needle comprises a puncture needle handle (1), wherein a driving block (15) is installed inside a handle (11) of the puncture needle handle (1), a groove is formed inside the driving block (15), a return spring (16) is fixedly arranged inside the groove, one end, far away from the driving block (15), of the return spring (16) is fixedly arranged on the left side wall inside the handle (11), the right side of the driving block (15) is fixedly arranged on a transmission rod (33), and one end, far away from the driving block (15), of the transmission rod (33) is fixedly arranged on a piston (32);
the positioning disc (21) of the limiting structure (2) is sleeved outside the puncture needle (30), and the end part of the positioning disc (21) is fixedly arranged with the limiting disc (22);
the puncture needle comprises a puncture needle body (3), wherein a puncture cavity (31) is formed in the end part of a puncture needle (30) of the puncture needle body (3), a piston (32) is arranged in the puncture cavity (31), and meanwhile, the left end of the puncture needle (30) is fixedly arranged with a screwed end (35).
2. The double-lumen puncture needle for nephrology department according to claim 1, which is characterized in that: the puncture needle handle (1) comprises a handle (11), a sliding groove (12), a stress block (13), a sliding block (14), a driving block (15), a return spring (16), a right fixing plate (17), a guide rod (18) and a left fixing plate (19).
3. The double-lumen puncture needle for nephrology department according to claim 2, characterized in that: two groups of guide holes which are arranged oppositely are formed in the driving block (15), guide rods (18) are respectively inserted into the two groups of guide holes, and the guide rods (18) are fixedly arranged on the surface of the inner wall of the handle (11).
4. The double-lumen puncture needle for nephrology department according to claim 3, characterized in that: the utility model discloses a handle, including guide bar (18), right fixed plate (17), left fixed plate (19), right fixed plate (17) and left fixed plate (19), the diameter of right fixed plate (17) and left fixed plate (19) is unanimous.
5. The double-lumen puncture needle for nephrology department according to claim 3, characterized in that: the end part of the driving block (15) is fixedly arranged with the sliding block (14), one end, far away from the driving block (15), of the sliding block (14) is fixedly arranged with the stress block (13), the sliding block (14) is arranged inside the sliding groove (12) in a sliding mode, the sliding groove (12) is formed in the outer side surface of the handle (11), and the section of the stress block (13) is of a right-angled trapezoid structure.
6. The double-lumen puncture needle for nephrology department according to claim 1, which is characterized in that: limiting structure (2) include positioning disk (21), spacing dish (22) and locating piece (23), the inside perforation of having seted up of positioning disk (21), and positioning disk (21) inner wall and fixed setting of locating piece (23), the locating hole has been seted up to locating piece (23) inside simultaneously, and the fixed screw tip passes the perforation and the installation of contradicting of locating hole and locating slot (34), and locating piece (23) slide to set up inside locating slot (34), and the lateral wall surface at felting needle (30) is seted up in locating slot (34).
7. The double-lumen puncture needle for nephrology department according to claim 1, which is characterized in that: the puncture needle body (3) comprises a puncture needle (30), a puncture cavity (31), a piston (32), a transmission rod (33), a positioning groove (34) and a screw joint end (35), the ends of the piston (32) and the puncture needle (30) are obliquely arranged, and the end of the puncture needle (30) is screwed in a screw joint hole formed in the right end of the handle (11) through the screw joint end (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122381304.5U CN216090599U (en) | 2021-09-29 | 2021-09-29 | Double-cavity puncture needle for nephrology department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122381304.5U CN216090599U (en) | 2021-09-29 | 2021-09-29 | Double-cavity puncture needle for nephrology department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216090599U true CN216090599U (en) | 2022-03-22 |
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ID=80690030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122381304.5U Expired - Fee Related CN216090599U (en) | 2021-09-29 | 2021-09-29 | Double-cavity puncture needle for nephrology department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216090599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115919431A (en) * | 2023-03-09 | 2023-04-07 | 上海微创电生理医疗科技股份有限公司 | Interatrial septum puncture device |
-
2021
- 2021-09-29 CN CN202122381304.5U patent/CN216090599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115919431A (en) * | 2023-03-09 | 2023-04-07 | 上海微创电生理医疗科技股份有限公司 | Interatrial septum puncture device |
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| 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: 20220322 |