CN216725426U - Negative pressure syringe - Google Patents
Negative pressure syringe Download PDFInfo
- Publication number
- CN216725426U CN216725426U CN202122697590.6U CN202122697590U CN216725426U CN 216725426 U CN216725426 U CN 216725426U CN 202122697590 U CN202122697590 U CN 202122697590U CN 216725426 U CN216725426 U CN 216725426U
- Authority
- CN
- China
- Prior art keywords
- locking
- ratchet
- fixing
- negative pressure
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The application discloses a negative pressure injector, which comprises a needle cylinder, a needle head, a needle wing, a needle cylinder and a needle cylinder, wherein the needle cylinder is provided with a needle head end and a finger wing end; the push rod comprises a rod body, the rod body is movably arranged in the needle cylinder, one end of the rod body is provided with a pressing sheet, and the other end of the rod body is provided with a sealing plug; the first locking part is detachably arranged on the rod body and is provided with a plurality of locking teeth and a plurality of fixing buckles, and the fixing buckles are used for locking the first locking part on the push rod; a second locking part arranged on the finger wing at the finger wing end of the needle cylinder and used for fixing the first locking part; the first locking part is detachably arranged on the push rod, so that the common injector is changed into a negative pressure injector, and the cost is saved; by arranging a plurality of locking teeth, the negative pressure environment with different pressures generated in the needle cylinder is realized.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a negative pressure injector.
Background
The syringe is a common medical appliance, mainly uses a needle to extract or inject gas or liquid, and doctors often need the syringe to maintain a certain negative pressure during the clinical operation process so as to complete some operations or operations. The existing operation method is to maintain negative pressure through manual suction, medical staff is usually required to fix an injector push rod with scissors and the like when the negative pressure is maintained, the negative pressure cannot be adjusted at any time, and the operation can be completed by matching two persons. The method has poor stability, and the failure of maintaining negative pressure is easily caused by poor clamping. The components for maintaining the negative pressure environment of the needle cylinder of the existing negative pressure injector are fixed on the injector, and the negative pressure injector has high cost and is not beneficial to popularization.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problems and provides a negative pressure injector.
The technical scheme adopted by the utility model is as follows: a negative pressure syringe comprising:
a needle cylinder having a needle end and a finger wing end;
the push rod comprises a rod body, the rod body is movably arranged in the needle cylinder, one end of the rod body is provided with a pressing sheet, and the other end of the rod body is provided with a sealing plug;
the first locking part is detachably arranged on the rod body and is provided with a plurality of locking teeth and a plurality of fixing buckles, and the fixing buckles are used for locking the first locking part on the push rod;
and a second locking part provided on the finger wing of the finger wing end of the cylinder for fixing the first locking part.
When the device is actually used, the push rod is pulled out to be separated from the needle cylinder, the first locking part is installed on the push rod, the first locking part is installed on the finger wing of the needle cylinder, then the push rod provided with the first locking part is pushed into the needle cylinder, when a negative pressure environment is needed, the push rod is pulled, the sealing plug head moves upwards, negative pressure is generated in the needle cylinder, the size of the negative pressure in the needle cylinder is adjusted by changing the distance of the push rod pulling out of the needle cylinder, and then the locking teeth on the first locking part are clamped on the second locking part, so that the negative pressure environment in the needle cylinder is maintained; the first locking part is detachably arranged on the push rod, so that the common injector is changed into a negative pressure injector, and the cost is saved; through setting up a plurality of locking teeth, realize producing the negative pressure environment of different pressures.
Preferably, the first locking member is a ratchet bar, and the locking teeth are ratchet teeth arranged on the ratchet bar at intervals.
In actual use, the ratchet bar is connected to the push rod.
Preferably, the second locking member includes:
the mounting part is provided with a cavity matched with the finger wing, and two ends of the mounting part are provided with locking teeth which are used for fixing the finger wing in the cavity;
the fixing piece is arranged on the mounting part, one end of the fixing piece corresponds to the ratchet, and the other end of the fixing piece is provided with a key;
the bearing seat is arranged on the mounting part, and the fixing piece is hinged to the bearing seat through a rotating shaft;
the torsional spring, the cover is established in the pivot, the torsional spring both ends all have a leg, one of them leg with the bearing frame links to each other, another one leg with the fixed plate links to each other, the jump ring be used for with the stationary blade compresses tightly on the ratchet and resets the stationary blade.
When the needle is actually used, the second locking part is buckled on the finger wing, the finger wing is locked in the first cavity by the locking teeth of the mounting part, the fixing piece is pressed on the finger wing by the clamp spring, the ratchet on the push rod is clamped by the fixing piece when the push rod is pulled, negative pressure in the needle cylinder is realized, when the push rod is reset, the key is pressed down, the fixing piece tilts upwards to avoid the ratchet, and then the push rod is pushed to reset; through setting up the torsional spring, realize compressing tightly the stationary blade on the ratchet, through setting up the locking tooth, realize that second locking part is installed on indicating the wing firmly.
Preferably, the first locking part is a ratchet bar, the locking teeth are ratchet teeth arranged on the ratchet bar at intervals, and the ratchet teeth have elasticity.
The ratchet is made of elastic materials, so that the ratchet is firmly connected with the fixing piece.
Preferably, the second locking member includes:
the mounting part is used for fixing the second locking part on the finger wing and is provided with a cavity matched with the finger wing, and locking teeth are arranged at two ends of the mounting part and are used for fixing the finger wing in the cavity;
and the fixing sheet is arranged on the mounting part, corresponds to the ratchet and is used for fixing the first locking part.
When the needle is actually used, the second locking part is buckled on the finger wing, the finger wing is locked in the first cavity by the locking teeth of the mounting part, then the push rod is pulled out, the ratchet on the push rod is matched with the fixing piece to fix the push rod, and after the work is finished, the push rod is rotated to the position where the ratchet avoids the locking part, and the push rod is pushed into the needle cylinder.
Preferably, a plurality of reinforcing ribs are uniformly distributed on the rod body, the ratchet bars are arranged between the adjacent reinforcing ribs, the fixed buckles are arranged on two sides of the ratchet bars, each fixed buckle is provided with a clamping through groove matched with the corresponding reinforcing rib, and the clamping through grooves are matched with the corresponding reinforcing ribs.
During the in-service use, through fixed buckle with the ratchet card between the strengthening rib of push rod, practiced thrift installation space, the simple installation has simultaneously realized the ratchet and has installed on the push rod fast.
Preferably, the reinforcing rib is provided with a bending part and a notch, and the clamping penetrating groove is clamped at the bending part and the notch respectively.
The bending part and the notch are matched with the clamping through groove, so that the ratchet bar is clamped on the reinforcing rib.
Preferably, a flexible silicone sheet is provided on the pressing sheet.
Through setting up flexible silica gel piece, the travelling comfort of guarantee user long-time use push rod.
Preferably, the first locking member is integrally formed.
The first locking part is integrally formed, so that the large-scale production is facilitated, and the popularization is facilitated.
The utility model has the beneficial effects that: the first locking part is detachably arranged on the push rod, so that the common injector is changed into a negative pressure injector, and the cost is saved; by arranging a plurality of locking teeth, the negative pressure environment with different pressures generated in the needle cylinder is realized.
Description of the drawings:
FIG. 1 is a schematic view of a negative pressure syringe;
FIG. 2 is a schematic view of another angle of the negative pressure syringe;
FIG. 3 is a schematic structural view of another negative pressure syringe;
FIG. 4 is a schematic view of a first locking member;
FIG. 5 is a schematic view of a syringe;
FIG. 6 is a schematic view of the push rod and another first locking member;
FIG. 7 is a schematic view of a second locking member;
FIG. 8 is a schematic view of another second locking member;
fig. 9 is another angular view of another second locking member.
The figures are numbered:
1. a needle cylinder; 2. a push rod; 3. pressing the sheet; 4. sealing the plug head; 5. a first locking member; 6. a second locking member; 7. fixing the buckle; 8. a fixing sheet; 9. a bearing seat; 10. a cavity; 11. a locking tooth; 12. reinforcing ribs; 13. clamping and connecting the through groove; 14. a ratchet bar; 15. a ratchet; 16. a finger wing; 17. an installation part.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, a negative pressure syringe includes:
a needle cylinder 1 having a needle head end and a finger wing end;
the push rod 2 comprises a rod body, the rod body is movably arranged in the needle cylinder 1, one end of the rod body is provided with a pressing sheet 3, and the other end of the rod body is provided with a sealing plug 4;
the first locking part 5 is detachably arranged on the rod body and is provided with a plurality of locking teeth and a plurality of fixing buckles 7, and the fixing buckles 7 are used for locking the first locking part 5 on the push rod 2;
a second locking element 6, which is arranged on the finger wing 16 of the finger wing end of the needle cylinder 1 and is used for fixing the first locking element 5.
When the syringe is actually used, the push rod 2 is pulled out to be separated from the syringe 1, the first locking part 5 is installed on the push rod 2, the first locking part is installed on the finger wing 16 of the syringe 1, then the push rod provided with the first locking part is pushed into the syringe 1, when a negative pressure environment is needed, the push rod 2 is pulled, the sealing plug head 4 is moved upwards, negative pressure exists in the syringe 1, the push rod 2 is pulled out of the syringe 1, the negative pressure in the syringe 1 is adjusted by exposing the push rod 2 out of the syringe in different lengths, and then the locking teeth on the first locking part 5 are clamped on the fixing piece 8 of the second locking part 6, so that the negative pressure environment in the syringe 1 is maintained; through detachable setting up first locking part 5 on push rod 2, realize becoming negative pressure syringe with ordinary syringe, be favorable to practicing thrift the cost.
As shown in fig. 4 and 6, the first locking member 5 is a ratchet 14, and the locking teeth are ratchet teeth 15 spaced apart from each other on the ratchet 14.
In actual use, the ratchet 14 is connected to the push rod 2.
As shown in fig. 7, the second locking member 6 includes:
the mounting part 17 is provided with a cavity 10 matched with the finger wing, two ends of the mounting part 17 are provided with locking teeth 11, and the locking teeth 11 are used for fixing the finger wing 16 in the cavity 10;
a fixing piece 8 arranged on the mounting part 17, one end of which corresponds to the ratchet 15 and the other end of which is provided with a key;
the bearing seat 9 is arranged on the mounting part 17, and the fixing piece 8 is hinged on the bearing seat 9 through a rotating shaft;
the torsional spring, the cover is established in the pivot, and the torsional spring both ends all have a leg, and one of them leg links to each other with the bearing frame, and another leg links to each other with the fixed plate, and the jump ring is used for compressing tightly stationary blade 8 on ratchet 15 and the stationary blade 8 that resets.
When the syringe is actually used, the second locking part is buckled on the finger wing 16, the finger wing 16 is locked in the first cavity 10 by the locking teeth 11 of the mounting part 17, the fixing piece 8 is pressed on the finger wing 16 by the clamp spring, the ratchet 15 on the push rod is clamped by the fixing piece 8 when the push rod is pulled, negative pressure is formed in the syringe 1, when the push rod 2 is reset, the push button is pressed, the fixing piece 8 is tilted upwards to avoid the ratchet 15, and then the push rod 2 is pushed to reset; the pressing of the fixing plate 8 on the ratchet 15 is realized by the arrangement of a torsion spring, and the stable mounting of the second locking part 6 on the finger wing 16 is realized by the arrangement of the locking teeth 11.
The first locking part 5 is a ratchet 14, the locking teeth are ratchet teeth 15 arranged on the ratchet 14 at intervals, and the ratchet teeth 15 have elasticity.
By making the ratchet 15 of an elastic material, a firm connection of the ratchet 15 to the fixing piece 8 is achieved.
As shown in fig. 8 and 9, the second locking member 6 includes:
the mounting part 17 is used for fixing the second locking part 6 on the finger wing 16 and is provided with a cavity 10 matched with the finger wing 16, the two ends of the mounting part 17 are respectively provided with a locking tooth 11, and the locking teeth 11 are used for fixing the finger wing 16 in the cavity 10;
and a fixing piece 8 provided on the mounting portion 17 corresponding to the ratchet 15 for fixing the first locking member 5.
When the syringe is actually used, the second locking component is firstly buckled on the finger wing 16, the locking tooth 11 of the mounting part 17 locks the finger wing 16 in the first cavity 10, then the push rod 2 is pulled out, the ratchet 15 on the push rod 2 is matched with the locking tooth 11 to fix the push rod 2, and after the work is finished, the push rod 2 is rotated to the position where the ratchet 15 avoids the locking part, and the push rod 2 is pushed into the syringe 1.
As shown in fig. 6, a plurality of reinforcing ribs 12 are uniformly distributed on the rod body, the ratchet bars 14 are arranged between the adjacent reinforcing ribs 12, the fixing buckles 7 are arranged on two sides of the ratchet bars 14, the fixing buckles 7 are provided with clamping through grooves 13 matched with the reinforcing ribs 12, and the clamping through grooves 13 are matched with the reinforcing ribs 12.
During actual use, the ratchet 14 is clamped between the reinforcing ribs 12 of the push rod 2 through the fixing buckle 7, so that the mounting space is saved, the mounting is simple and convenient, and the ratchet 14 is rapidly mounted on the push rod 2.
As shown in fig. 4, the reinforcing rib 12 is provided with a bending portion and a notch, and the clamping through groove 13 is clamped at the bending portion and the notch respectively.
The bending part and the notch are matched with the clamping through groove 13, so that the ratchet strip 14 is clamped on the reinforcing rib 12.
The pressing sheet 3 is provided with a flexible silica gel sheet.
Through setting up flexible silica gel piece, the travelling comfort of guarantee user long-time use push rod 2.
The first locking member 5 is integrally formed.
The first locking part 5 is integrally formed, so that large-scale production is facilitated, and popularization is facilitated.
The use method of the utility model comprises the following steps: the method comprises the following steps of pulling out a push rod 2 to be separated from a needle cylinder 1, installing a first locking part 5 on the push rod 2, installing the first locking part on a finger wing 16 of the needle cylinder 1, then pushing the first locking part into the needle cylinder 1, pulling the push rod 2 when a negative pressure environment is needed, moving a sealing plug upwards, pulling the negative pressure in the needle cylinder 1, pulling the height of the push rod 2, adjusting the size of the negative pressure in the needle cylinder 1, and clamping locking teeth on the first locking part 5 on a fixing piece 8 of a second locking part 6 to keep the negative pressure environment in the needle cylinder 1; after the injector finishes working, the push rod 2 is rotated until the ratchet 14 on the push rod 2 avoids the fixing plate 8, and then the push rod 2 is pushed into the syringe 1.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (9)
1. A negative pressure syringe, comprising:
a needle cylinder having a needle end and a finger wing end;
the push rod comprises a rod body, the rod body is movably arranged in the needle cylinder, one end of the rod body is provided with a pressing sheet, and the other end of the rod body is provided with a sealing plug;
the first locking part is detachably arranged on the rod body and is provided with a plurality of locking teeth and a plurality of fixing buckles, and the fixing buckles are used for locking the first locking part on the push rod;
and a second locking part provided on the finger wing of the finger wing end of the cylinder for fixing the first locking part.
2. The syringe of claim 1, wherein the first locking member is a ratchet and the locking teeth are ratchet teeth spaced apart from the ratchet.
3. The negative pressure syringe of claim 2, wherein the second locking member comprises: the mounting part is provided with a cavity matched with the finger wing, and two ends of the mounting part are provided with locking teeth which are used for fixing the finger wing in the cavity; the fixing piece is arranged on the mounting part, one end of the fixing piece corresponds to the ratchet, and the other end of the fixing piece is provided with a key; the bearing seat is arranged on the mounting part, and the fixing piece is hinged on the bearing seat through a rotating shaft; the torsional spring, the cover is established in the pivot, the torsional spring both ends all have a leg of folding, one of them a leg with the bearing frame links to each other, another one a leg with the stationary blade links to each other, the torsional spring be used for with the stationary blade compresses tightly on the ratchet and resets the stationary blade.
4. The negative pressure syringe as claimed in claim 1, wherein the first locking member is a ratchet, and the locking teeth are ratchet teeth provided at intervals on the ratchet, and the ratchet teeth have elasticity.
5. The negative pressure syringe of claim 4, wherein the second locking member comprises:
the mounting part is used for fixing the second locking part on the finger wing and is provided with a cavity matched with the finger wing, and locking teeth are arranged at two ends of the mounting part and are used for fixing the finger wing in the cavity; and the fixing sheet is arranged on the mounting part, corresponds to the ratchet and is used for fixing the first locking part.
6. The negative pressure syringe as claimed in claim 2, wherein a plurality of ribs are uniformly distributed on the rod body, the ratchets are disposed between adjacent ribs, the fixing fasteners are disposed on both sides of the ratchets, the fixing fasteners have fastening through grooves adapted to the ribs, and the fastening through grooves are adapted to the ribs.
7. The negative pressure syringe according to claim 6, wherein the reinforcing rib is provided with a bending portion and a notch, and the clip-connecting groove is respectively clipped at the bending portion and the notch.
8. The negative pressure syringe as claimed in claim 1, wherein the pressing piece is provided with a flexible silicone sheet.
9. The negative pressure syringe of claim 1, wherein the first locking member is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122697590.6U CN216725426U (en) | 2021-11-05 | 2021-11-05 | Negative pressure syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122697590.6U CN216725426U (en) | 2021-11-05 | 2021-11-05 | Negative pressure syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216725426U true CN216725426U (en) | 2022-06-14 |
Family
ID=81925778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122697590.6U Active CN216725426U (en) | 2021-11-05 | 2021-11-05 | Negative pressure syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216725426U (en) |
-
2021
- 2021-11-05 CN CN202122697590.6U patent/CN216725426U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1682650A (en) | Apparatus for extracting bodily fluid | |
| CN216725426U (en) | Negative pressure syringe | |
| CN110859733B (en) | Hand rehabilitation physiotherapy training equipment based on wearing formula | |
| CN211834510U (en) | Shaping autologous fat transplantation instrument | |
| CN107497972B (en) | A kind of electric power cable shear | |
| CN110200677A (en) | It is a kind of can continuous blood vessel clip laparoscope biology clamp | |
| CN215082218U (en) | Novel practical anti-static thumb-tack needle | |
| CN208411156U (en) | A kind of student's reading clamp | |
| CN201404260Y (en) | Pulse pressing clip | |
| CN213284934U (en) | Clamping mechanism for remaining needle | |
| CN213158504U (en) | Accurate medicine syringe | |
| CN206794530U (en) | Slide folds cylinder shaping mechanism | |
| CN208541368U (en) | A kind of medical treatment and nursing hemostasis device | |
| CN218062992U (en) | Expansion screw convenient to install | |
| CN219788344U (en) | Leg height adjusting structure of mechanical bionic exoskeleton | |
| CN209437600U (en) | A kind of massage armchair of easy disassembly | |
| CN210704926U (en) | Bread sword of changeable profile of tooth | |
| CN216883745U (en) | Handheld pen pressing mechanism | |
| CN220421084U (en) | Line ball structure that can install and remove fast | |
| CN217032548U (en) | A environmental monitoring device for beautiful makeup product production | |
| CN2635041Y (en) | Cervical vertebra rear path operation cervical vertebra stretching and fixing belt | |
| KR101447374B1 (en) | The Arm-Rester For Control Upward And Downward | |
| CN215733206U (en) | A pipeline carding unit for computer lab | |
| CN215425792U (en) | Special bed for thyroid puncture | |
| CN219250873U (en) | Massager convenient to wear and take |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Jiansheng Inventor after: Yan Xuhong Inventor after: Shen Da Inventor after: Mi Yuxing Inventor before: Yan Xuhong Inventor before: Shen Da Inventor before: Qin Jian |