CN220385559U - Device for submucosal injection of renal pelvis - Google Patents
Device for submucosal injection of renal pelvis Download PDFInfo
- Publication number
- CN220385559U CN220385559U CN202322777448.1U CN202322777448U CN220385559U CN 220385559 U CN220385559 U CN 220385559U CN 202322777448 U CN202322777448 U CN 202322777448U CN 220385559 U CN220385559 U CN 220385559U
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- CN
- China
- Prior art keywords
- needle
- submucosal injection
- renal pelvis
- puncture
- slide tube
- Prior art date
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- 238000002347 injection Methods 0.000 title claims abstract description 30
- 239000007924 injection Substances 0.000 title claims abstract description 30
- 210000000244 kidney pelvis Anatomy 0.000 title claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 210000004877 mucosa Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010037596 Pyelonephritis Diseases 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 201000004537 pyelitis Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 210000000626 ureter Anatomy 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Abstract
The utility model discloses a device for submucosal injection of renal pelvis, which relates to the medical field and comprises a needle, wherein a slide tube is arranged in the needle in a sliding way; the sliding tube is provided with a protection block in a rotating mode, and the protection block is in a contracted state for being contained in the needle head and an unfolded state for shielding the sharp end of the needle head. The sliding tube is arranged in the needle head in a sliding manner, when the protective block on the sliding tube is positioned in the needle head when puncture is needed, the protective block is in a contracted state so as to facilitate smooth puncture of the puncture needle, and when the puncture needle punctures to a target position, the sliding tube is pushed so that the protective block slides out of the needle head and rotates towards the direction of the sharp end, so that shielding of the sharp end is realized, further puncture of the puncture needle is prevented, and secondary injury to a patient can be avoided.
Description
Technical Field
The utility model relates to the medical field, in particular to a device for submucosal injection of renal pelvis.
Background
The mucosa of the renal pelvis is known as the mucosal layer that covers the inner wall of the renal pelvis. The renal pelvis is a structure connecting the kidneys and the ureters, and is responsible for collecting and storing urine produced from the kidneys. Currently, for the treatment of certain renal pelvis diseases, such as pyelitis, pyelithiasis, etc., injection therapy under the mucosa of the renal pelvis is often required.
The patent document with the name of puncture needle and puncture needle assembly, such as CN210871926U, with the authorization date 2020-06-30, comprises a body which is of a hollow tubular structure, wherein the body comprises a front end and a rear end, a plurality of notches are arranged on the pipe wall of the body, the notches are respectively positioned at different positions in the extending direction of the body, and the notches face at least two different directions. The technical scheme has the advantages that: the incisions are arranged at different positions of the extending direction of the body, so that a plurality of incisions with different orientations are not formed in the same radial tangential plane of the body, the body has better rigidity, and transitional bending does not occur in the body during puncturing to influence the puncturing direction. The utility model also provides a puncture needle assembly, which comprises any puncture needle and a push rod unit connected with the puncture needle, wherein the push rod unit controls the puncture of the puncture needle.
The prior art has the defects that after the puncture needle penetrates into the body of a patient, the puncture needle does not have protective measures, and when the puncture needle is impacted, the puncture needle can further puncture, so that secondary injury is brought to the patient.
Disclosure of Invention
It is an object of the present utility model to provide a device for submucosal injection of renal pelvis that addresses the above-described deficiencies in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
a device for submucosal injection of renal pelvis comprising a needle inside of which a slide tube is slidingly arranged; the sliding tube is provided with a protection block in a rotating mode, and the protection block is in a contracted state for being contained in the needle head and an unfolded state for shielding the sharp end of the needle head.
In the device for submucosal injection of renal pelvis, a torsion spring is arranged between the slide tube and the protective block.
In the device for submucosal injection of renal pelvis, the slide tube is provided with a limiting block.
In the above device for submucosal injection of renal pelvis, the end of the protecting block is arc-shaped.
In the device for submucosal injection of renal pelvis, the slide tube is provided with a connecting part, and a locking piece is arranged between the connecting part and the needle.
The device for submucosal injection of renal pelvis, the locking piece comprises a fixed plate and a locking rod, the connecting part is provided with a movable groove, the locking rod is slidably arranged in the movable groove, a first elastic piece is arranged between the locking rod and the movable groove, the fixed plate is fixedly connected to the needle, and the fixed plate is provided with a locking hole through which the locking rod passes.
According to the device for submucosal injection of the renal pelvis, the L-shaped rod is fixedly connected to the connecting part, the L-shaped rod is in sliding connection with the fixing plate, and the second elastic piece is arranged between the L-shaped rod and the fixing plate.
In the above device for submucosal injection of renal pelvis, the number of the locking members is two, and the locking members are symmetrically arranged about the central axis of the slide tube.
In the above device for submucosal injection of renal pelvis, the connecting part is provided with an anti-slip layer.
The device for submucosal injection of renal pelvis, wherein the needle is provided with a hand-held part.
In the technical scheme, the sliding tube is arranged in the needle in the sliding manner, when the puncture is needed, the protective block on the sliding tube is in a contracted state when the needle is positioned in the protective block, so that the puncture needle can puncture smoothly, and when the puncture needle punctures to the target position, the sliding tube is pushed, so that the protective block slides out of the needle and rotates towards the direction of the sharp end, shielding of the sharp end is realized, and further puncture of the puncture needle is prevented, so that secondary injury to a patient can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the partial structure at A in FIG. 1;
FIG. 3 is an enlarged schematic view of a partial structure at B in FIG. 1;
fig. 4 is an enlarged schematic view of a partial structure at C in fig. 1.
Reference numerals illustrate:
1. a needle; 2. a slide tube; 3. a protection block; 4. a limiting block; 5. a connection part; 6. a fixing plate; 7. a locking lever; 8. a movable groove; 9. a first elastic member; 10. a locking hole; 11. an L-shaped rod; 12. a second elastic member; 13. an anti-slip layer; 14. a hand-held part.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
In the description of the present utility model, it should be understood that references to the location of the connecting portion 5 relative to the needle 1 in fig. 1 are made up and, conversely, references to orientations or positional relationships indicated by the terms "center", "upper", "lower", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element in question must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.
Referring to fig. 1-4, an apparatus for submucosal injection of renal pelvis according to an embodiment of the present utility model includes a needle 1, and a slide tube 2 is slidably disposed inside the needle 1; the slide tube 2 is provided with a protection block 3 in a rotating manner, and the protection block 3 is provided with a contracted state for being contained in the needle head 1 and an unfolded state for shielding the sharp end of the needle head 1.
Specifically, the needle 1 is provided with a sharp end, the angle of the section of the sharp end is preferably 20-50 °, when injection treatment is carried out, the sharp end of the needle 1 is inserted into a position to be injected, then the injector is communicated with the needle 1, and medicament is injected into the position to be injected through the injector, which is not described in detail in the prior art, one of the key innovation points is that the needle 1 is slidably provided with the slide tube 2, the outer diameter size of the slide tube 2 is matched with the inner diameter size of the needle 1, the protection block 3 is in a long rod shape, the protection block 3 is rotatably connected to the end part of the slide tube 2, the protection block 3 is in a contracted state for being contained in the needle 1 and in an expanded state for shielding the sharp end of the needle 1, namely, when the protection block 3 on the slide tube 2 is positioned in the needle 1 and is in a contracted state so as to facilitate smooth puncture of the puncture needle, when the puncture needle is punctured to a target position, the slide tube 2 is pushed, the protection block 3 slides outside the needle 1, then the protection block 3 can be enabled to rotate towards the direction of the end through a traction wire and the like, on the other hand, the sharp end of the protection block 3 is prevented from being further hurting the patient, on the other hand, the puncture position of the needle can be prevented from being more accurately punctured, and the patient can be prevented from being injured on the other hand.
Further, a torsion spring (not shown in the figure) is disposed between the slide tube 2 and the protecting block 3, specifically, the elasticity of the torsion spring makes the protecting block 3 have a stress rotating towards the inner wall of the needle 1, so that the protecting block 3 can be tightly attached to the inner wall of the needle 1 when the protecting block 3 is in a contracted state, so that the protecting block 3 can be conveniently stored, when the protecting block 3 slides to the outside of the needle 1, the elasticity of the torsion spring can make the protecting block 3 passively expand outwards, after injection treatment is completed, the slide tube 2 is pushed reversely, and the protecting block 3 can reversely rotate under the action of abutting of the edge of the sharp end, so that the protecting block 3 can be passively stored in the needle 1 when the slide tube 2 reversely moves.
Preferably, the number of the protection blocks 3 is not less than one group, and preferably two groups, wherein one group is arranged corresponding to the position of the sharp end, the other group is symmetrically arranged with the former group, and the contact surface of the two groups of protection blocks 3 can be increased so as to increase the resistance of the protection blocks 3, thereby having better protection effect.
Further, the slide tube 2 is provided with a limiting block 4, the limiting block 4 is arranged on one side of the protection block 3, when the protection block 3 reversely rotates to be parallel to the side wall of the slide tube 2, the protection block 3 cannot continue rotating under the action of the limiting block 4, so that the protection block 3 is prevented from blocking the channel inside the slide tube 2.
Preferably, the tip of protection piece 3 is the arc, and the both ends of protection piece 3 are the arc, and is smoother when the arcwall face of protection piece 3 and the inside contact of patient to can avoid the inside tissue damage of patient.
Further, the slide tube 2 is provided with a connecting portion 5, the connecting portion 5 is used for being connected with the injector and comprises a cylindrical section and a conical section, a locking piece is arranged between the connecting portion 5 and the needle head 1 and used for fixing the position of the slide tube 2, and therefore the protection block 3 can be in a stable unfolding state.
Preferably, the locking piece includes fixed plate 6 and locking lever 7, set up movable groove 8 on connecting portion 5, locking lever 7 slide set up in movable groove 8, locking lever 7 with be provided with first elastic component 9 between movable groove 8, first elastic component 9 is preferably first spring, fixed plate 6 rigid coupling in on syringe needle 1, set up on fixed plate 6 and supply locking hole 10 that locking lever 7 passed through, specific, movable groove 8 arranges in the radial direction of connecting portion 5, and also locking lever 7 can slide along the radial direction of connecting portion 5, and locking lever 7 is long shaft-like, and its one end that keeps away from movable groove 8 has the wedge face, and fixed plate 6 rigid coupling is in the lateral wall of syringe needle 1, and locking hole 10 is located the motion stroke of locking lever 7, and the locking hole 10 lateral wall is provided with the wedge face, and the effect that so set up is in, when pushing slide tube 2 moves along syringe needle 1 axial direction, the wedge face of locking lever 7 and locking hole 10 butt to can make locking lever 7 and locking lever 7 along the radial direction of connecting portion 5 and the radial direction of connecting portion 7 can be followed by the locking lever 7, thereby can be prevented from sliding position, and the reverse slide position can be followed by the locking lever 7, and the locking lever 7 is passed through the radial position of connecting portion 7, and the radial position of locking lever 7 can be kept away from the side of the connecting portion 5, and the locking lever 7 can be made to slide along the radial direction of the opposite direction of connecting portion 5, and the locking lever 7, and the axial direction is located in order to move the side, and the side is provided with the wedge face and the wedge.
It should be noted that, after the injection is completed, the locking lever 7 is manually pressed, the locking lever 7 slides towards the inner side of the movable slot 8 to unlock the slide tube 2, and then the slide tube 2 is reversely pulled, so that the protection block 3 can be converted from the unfolded state to the contracted state, and the needle head 1 is conveniently taken out.
Further, the connecting portion 5 is fixedly connected with an L-shaped rod 11, the L-shaped rod 11 is slidably connected with the fixing plate 6, a second elastic piece 12 is arranged between the L-shaped rod 11 and the fixing plate 6, the second elastic piece 12 is preferably a second spring, the L-shaped rod 11 penetrates through the fixing plate 6 and can vertically slide along the fixing plate 6, the second spring is arranged between the short side of the L-shaped rod 11 and the fixing plate 6, the L-shaped rod 11 synchronously slides and stretches the second spring when pushing the slide tube 2, after the puncture is completed, and after the locking rod 7 is separated from the locking hole 10, the L-shaped rod 11 automatically resets under the elastic action of the second spring, so that the connecting portion 5 and the slide tube 2 are driven to automatically reset, and the connecting portion is convenient and quick.
Preferably, the number of the locking pieces is two, and the locking pieces are symmetrically arranged about the central axis of the slide tube 2, and the two groups of locking pieces can enable the position of the slide tube 2 to be fixed more stably.
Further, the connecting portion 5 is provided with an anti-slip layer 13, and the anti-slip layer 13 is disposed on an outer circumferential surface of the connecting portion 5 and is made of a rubber material, so that friction force between hands of a person and the connecting portion 5 is increased when the slide tube 2 is pushed.
Further, the needle 1 is provided with two handholds 14, and the handholds 14 are symmetrically arranged about the central axis of the needle 1, and when in puncture, the thumb and the index finger of a person can be placed on the handholds 14, so that the puncture needle is convenient to use.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (10)
1. A device for submucosal injection of renal pelvis comprising a needle, characterized in that the needle is internally slidingly provided with a slide tube;
the sliding tube is provided with a protection block in a rotating mode, and the protection block is in a contracted state for being contained in the needle head and an unfolded state for shielding the sharp end of the needle head.
2. A device for submucosal injection of renal pelvis according to claim 1, wherein a torsion spring is provided between the slide tube and the protective block.
3. A device for submucosal injection of renal pelvis according to claim 1, wherein a stopper is provided on the slide tube.
4. A device for submucosal injection of renal pelvis according to claim 1 wherein the ends of the protective blocks are arcuate.
5. A device for submucosal injection of kidney pelvis according to claim 1, wherein a connection is provided on the slide, and a lock is provided between the connection and the needle.
6. A device for submucosal injection of renal pelvis as in claim 5, wherein the locking member comprises a fixed plate and a locking bar, the connecting portion is provided with a movable slot, the locking bar is slidably disposed in the movable slot, a first elastic member is disposed between the locking bar and the movable slot, the fixed plate is fixedly connected to the needle, and the fixed plate is provided with a locking hole through which the locking bar can pass.
7. A device for submucosal injection of claim 6 wherein the connecting portion has an L-shaped rod fixedly connected thereto, the L-shaped rod is slidably connected to the fixation plate, and a second elastic member is disposed between the L-shaped rod and the fixation plate.
8. A device for submucosal injection of kidney pelvis according to claim 5, wherein the locking members are two and are symmetrically arranged about the central axis of the slide tube.
9. A device for submucosal injection of claim 5 wherein the connecting portion is provided with an anti-slip layer thereon.
10. A device for submucosal injection of renal pelvis according to claim 1, wherein a handpiece is provided on the needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322777448.1U CN220385559U (en) | 2023-10-17 | 2023-10-17 | Device for submucosal injection of renal pelvis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322777448.1U CN220385559U (en) | 2023-10-17 | 2023-10-17 | Device for submucosal injection of renal pelvis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220385559U true CN220385559U (en) | 2024-01-26 |
Family
ID=89609047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322777448.1U Active CN220385559U (en) | 2023-10-17 | 2023-10-17 | Device for submucosal injection of renal pelvis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220385559U (en) |
-
2023
- 2023-10-17 CN CN202322777448.1U patent/CN220385559U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |