CN109173027A - A kind of disposable remote-injection syringe of Microendoscopic - Google Patents
A kind of disposable remote-injection syringe of Microendoscopic Download PDFInfo
- Publication number
- CN109173027A CN109173027A CN201811127676.1A CN201811127676A CN109173027A CN 109173027 A CN109173027 A CN 109173027A CN 201811127676 A CN201811127676 A CN 201811127676A CN 109173027 A CN109173027 A CN 109173027A
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- China
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- hand grip
- front hand
- card slot
- back handle
- lock core
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- 238000002347 injection Methods 0.000 title claims abstract description 26
- 239000007924 injection Substances 0.000 title claims abstract description 26
- 238000001802 infusion Methods 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000001079 digestive effect Effects 0.000 description 5
- 238000001839 endoscopy Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012277 endoscopic treatment Methods 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010999 medical injection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1042—Alimentary tract
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of disposable remote-injection syringe of Microendoscopic, including front hand grip, back handle, outer tube, inner tube and syringe needle, the distal end of back handle is protruded into front hand grip and is slidably connected with front hand grip, and front hand grip is connected with the proximal end of outer tube, inner tube is located in outer tube, and syringe needle is placed in the distal end of inner tube；It is characterized by: back handle edge on the position close to its distal end is axially arranged at least two positioning gears, one of positioning gear is that all go out needle of the exposing outside outer tube positions gear to syringe needle, another positioning gear is that syringe needle recycles the positioning gear of the back stitching in outer tube completely；It positions gear and is equipped with card slot；The inner wall of front hand grip is equipped with lock core, pushes and pulls back handle, so that the card slot on back handle is directed at the lock core of front hand grip, and rotate back handle, lock core can screw in card slot.Present invention locking is solid and reliable, it is ensured that using safe；There is the limit of many places structure simultaneously, patient's selection can be made reasonably to go out needle length；Structure is simple, easy to process.
Description
Technical field
The present invention relates to a kind of the field of medical instrument technology, in particular to the disposable long-range injection of a kind of Microendoscopic
Needle.
Background technique
Endoscope is to have concentrated traditional optical, ergonomics, precision machinery, hyundai electronics, mathematics, software etc. in one
Detecting instrument.One has imaging sensor, optical lens, light source illumination, mechanical device etc., it can enter stomach with direct oral cavity
It is interior or enter in vivo through other natural holes or the small notch done of underwent operative enters in human body.It can be seen using endoscope
The lesion that cannot be shown to X-ray, therefore it is highly useful to doctor.With the continuous improvement of digestive endoscopy Doctors' skill level
With innovation, digestive endoscopy technology is developed to the modern digestive endoscopy Clinics for having both Clinics and Practices from simple indagation.
It is all-pervasive, nothing from direct-view to indirect from intracavitary to outside chamber under the technology of digestive endoscopy treatment can be from mucous membrane to mucous membrane
The case where hole also enters.Digestive endoscopy minimally-invasive treatment technology, part instead for the treatment of means such as original traditional operations, by
Walk the therapeutic modality of changing section disease.
It often will be under gastrointestinal mucosal or intravascular injection drug, in order to meet the expection for the treatment of in Endoscopic Treatment
Purposes, commercial type have simultaneously used a plurality of disposable endoscopic hemostasis needles, and structure contains front and back handle, Yi Jifen nothing more than
The outer tube and inner tube not being fixed in front hand grip and back handle are come real by making front and back handle that relative displacement occur when in use
Now fixed Telescopic of the syringe needle relative to outer tube on inner pipe, and with position that front and back handle is fixed in medical injection procedure
It sets, it is ensured that back stitching does not occur in injection overload；Traditional front and back handle fixed form uses fit clearance mainly to limit opposite shifting
Dynamic, this mode structure is simple, easily manufactured, but reliability is not high, and a kind of elasticity pressure of back handle is widely used in market at present
The mode of the locating slot of block cooperation front hand grip is fixed.Such as Authorization Notice No. is that CN204601279U discloses a kind of bullet block locking
Formula disposable endoscope injection needle, including inner tube, the syringe needle that is connected to inner tube front end, the boost tube for being connected to inner tube rear end, set
Outer tube, the protecting pipe covered outside boost tube outside inner tube, the front end of protecting pipe are fixedly connected with the rear end of outer tube, protecting pipe
Rear end is fixedly connected with connection housing, connects the rear end setting restraining position ring block of housing, further includes the core bar with stop collar clamping, core
Bar first half has the sleeve cooperated with stop collar inner ring, and sleeve outer ring is symmetrical arranged guide groove, and stop collar inner ring is symmetrical arranged
Have the gib block with the protrusion of guide groove cooperation, also there is on sleeve a positioning briquetting that can be bounced, offered in stop collar with
The locating slot of positioning briquetting cooperation.Although its mode is firm compared to a kind of upper structure latches, when it is because going out needle and narrowing, pressure
Block will be pressed into and extrude, need operator need it is more at this moment firmly cause needle out and the back stitching mistake not gentle, improve
Patient's operation difficulty, increases certain application risk.
Summary of the invention
In order to solve the above technical problems, it is an object of the present invention to provide a kind of disposable long-range injections of Microendoscopic
Needle has the following characteristics that locking is solid and reliable, and has syringe needle Emergency recovery mode, it is ensured that using safe；Have simultaneously
Structure limit in many places can make patient carry out singlehanded blind behaviour；Structure is simple, easy to process.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of disposable remote-injection syringe of Microendoscopic,
Including front hand grip, back handle, outer tube, inner tube and syringe needle, defining towards one end of attending physician is proximal end, far from attending physician
One end be distal end, the distal end of the back handle is protruded into front hand grip and is slidably connected with front hand grip, the front hand grip and outer tube
Proximal end be connected, there is infusion channel, the distal end of infusion channel is connected with the proximal end of inner tube, inner tube inside the back handle
In outer tube, the syringe needle is placed in the distal end of inner tube；The back handle close to its distal end position on along be axially arranged with to
Few two positioning gears, one of positioning gear is that the needle that goes out that syringe needle all exposes outside the outer tube positions gear, another
A positioning gear is that syringe needle recycles the positioning gear of the back stitching in outer tube completely；It is in groove that the positioning gear, which is equipped with inwardly,
The card slot of shape；The inner wall of the front hand grip is equipped with the inside lock core in boss-shaped, pushes and pulls the back handle, makes on back handle
Card slot on needle positioning gear or the lock core of the card slot alignment front hand grip on back stitching positioning gear out, and back handle is rotated, lock core
It can screw in card slot.
Related content in above-mentioned technical proposal is explained as follows:
1, in above scheme, preferable scheme is to position to be equipped between gear and back stitching positioning gear in needle out on the back handle
At least one controls out the long control gear of needle of needle length.That is, the card slot on back handle can be in back handle distal end position
It sets along axial multiple distributions, is locked on the different location of front hand grip and back handle with realizing, and then it is outer to control syringe needle stretching
The different length of pipe.Because locking and unlocking only need to rotate back handle, so operating process is steady, syringe needle is flexible gentle, syringe needle
Rapid preshoot or retrogressing will not occur.
2, in above scheme, preferable scheme is to set on each positioning gear along the circumferentially-spaced of the back handle
The card slot in groove-like for having at least one inside, one end of the card slot are equipped with the initial inlet screwed in for the lock core, card
The other end of slot is equipped with rotation stop block face；Along the circumferentially-spaced inside equipped at least one of front hand grip on the inner wall of the front hand grip
In the lock core of boss-shaped, the quantity of lock core is identical as the circumferentially upper quantity of card slot of back handle, lock core in front hand grip circumferential direction one
End is equipped with the first confined planes, and in the locked state, lock core screws in card slot from the initial inlet, and first confined planes can
It is resisted against on the rotation stop block face.When lock core screws in card slot, the first confined planes and rotation stop block face are overlapped, and then can control hand
The rotation angle of handle, avoids rotation angle and spends senior general's lock core and screw out and fail from card slot.
Further, the back handle is equipped with guide surface, the length of the guide surface on the position close to its distal end
Direction is arranged along the axial direction of back handle, and the initial inlet of card slot and back stitching position card slot on gear on needle positioning gear out
Initial inlet connect with the guide surface；The other end of the lock core in front hand grip circumferential direction is equipped with the second confined planes,
First confined planes and the second confined planes coplanar horizontal；In the unlocked state, the first confined planes of lock core do not enter described rise
In beginning entrance, second confined planes can be resisted against in the guide surface.That is, the distal portions of the back handle
Cross section be incomplete circle, the guide surface be incomplete circular string, incomplete circular lack part
Area is greater than the lock core area.On the one hand, with arc profile section back handle can guarantee rotation process steadily into
Row, circular cross-section lack part is to avoid the space of lock core when handle is moved forward and backward.On the other hand, in unlocked state
Under, when needing to push back handle, the second confined planes are resisted against in guide surface, and guide surface slides back handle in the axial direction
It is dynamic to play the role of guiding.
The card slot is equipped with introduction bevel at the initial inlet, can play the work that guidance lock core accurately screws in card slot
With.
The lock core is made of in front hand grip circumferential direction limit section and locking section, and the limit section is in remote holder arbor
Upward width is slightly less than width of the card slot in back handle axial direction, and limit section can be with card slot clearance fit, the lock
Tight section is slightly larger than width of the card slot in back handle axial direction in the width in front hand grip axial direction, and locking section can be embedded in card slot
It is inside locked at lock core in card slot, there is intermediate incline between locking section and limit section.When locking section screws in card slot, slight
Magnitude of interference can guarantee front and back handle clamping, and non-artificial rotation will not occur and be detached from lock state, while one is transitioned into
Plane can allow screwing operations gently to carry out.
3, in above scheme, preferable scheme is that the distal end of the back handle is equipped with the elastic spacing lever tilted outward,
The central axis of elastic spacing lever and back handle is at an acute angle towards back handle proximal direction；Before the back handle is packed into
When the inner cavity of handle, elastic spacing lever is radially compressed and can enter front hand grip inner cavity, bullet by the position of the lock core
Property spacing lever be unfolded after through the position of lock core, elastic spacing lever is resisted against side of the lock core in front hand grip axial direction
On.
In the on-compressed state, the spacing for tilting end and back handle central axis of elastic spacing lever is greater than front hand grip lock
The maximum spacing of in-core surface distance back handle central axis.Back handle pulls out from front hand grip in order to prevent, so
Back handle distal end is provided with an elastic spacing lever, when back handle is packed into front hand grip inner cavity, due to elastic spacing lever
Angle with central axis in proximally facing direction is at an acute angle, can when elastic spacing lever passes through the lock core position of front hand grip
It is radially compressed the lever of elasticity, it is ensured that elastic spacing lever can enter front hand grip inner cavity by lock core position completely；Elasticity
Spacing lever is unfolded after through lock core position, and radial maximum outer diameter will be greater than the inner surface of front hand grip lock core at this time
Maximum inner diameter size, when pulling back in back handle, the side of elastic spacing lever will resist the side of front hand grip lock core, it is ensured that after
Handle will not be pulled out from front hand grip.
4, in above scheme, preferable scheme is the distal end of the front hand grip equipped with cap is screwed, and screws cap and front hand grip
Distal end be equipped with the internal and external threads that match.The distal end of the front hand grip is equipped with the handle conical surface, the distal end for screwing cap thread
Equipped with the turncap conical surface, in the assembled condition, the handle conical surface can be fitted closely with the turncap conical surface.
To be covered first on outer tube when assembly and screw cap, after outer tube one end is inserted into the handle conical surface, then cap will be screwed and twisted
It is tightened in front hand grip, during tightening, the turncap conical surface for screwing cap is adjacent to the handle conical surface, by this method presss from both sides outer tube head end
Tightly between two conical surfaces, outer tube is fixed using this mechanical system, on the one hand can increase the bonding strength of outer tube and front hand grip
(compared to Nian Jie with traditional glue), on the other hand, in surgical procedure, syringe needle caused by Ruo Fashengyin cavity is excessively bent can not
When recycling into the case where outer tube, patient can will screw cap and unscrew, and outer tube is deviate under front hand grip, and being individually pushed forward outer tube will force
Syringe needle is taken in outer tube, damage of the syringe needle exposed in withdrawing to endoscope channel has been prevented.
5, in above scheme, preferable scheme is that the proximal end of the back handle is equipped with the female Luer of locking.
6, in above scheme, " inside " direction for referring to the central axis towards disposable remote-injection syringe is described
" outside " refers to the direction of the central axis far from disposable remote-injection syringe.
7, in above scheme, " axial direction " indicates the direction that the device of the invention is pushed into.
8, in above scheme, preferable scheme is the intracavity section of the front hand grip for circle, and lock core is inwardly protruded
Fan-shaped boss.Circular section guarantees that the process of rotation steadily carries out, fan-shaped boss-shaped lock core, increasing lock core that can be optimal
Effective area.The cross sectional shape of the card slot of the back handle is the sector of indent, and the area of card slot is greater than front hand grip lock core
Area.The fan-shaped card slot of indent, the effective area of increasing card slot that can be optimal.
Due to the application of the above technical scheme, the present invention is made to have the following characteristics that locking securely may be used compared with prior art
It leans on, there is many places positioning in the axial direction of instrument, it is ensured that preshoot or retrogressing will not occur in the axial direction after needle out for syringe needle, meanwhile,
Rotation angle is avoided in the circumferential direction of instrument spend senior general's lock core screw out and fail from card slot；With syringe needle Emergency recovery side
Formula, it is ensured that using safe；It is limited with many places structure, patient can be made to carry out singlehanded blind behaviour；Structure is simple, easy to process.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of the disposable remote-injection syringe of Microendoscopic of embodiment；
Attached drawing 2 is the three dimensional structure diagram of back handle in attached embodiment illustrated in fig. 1；
Attached drawing 3 is the three dimensional structure diagram of front hand grip in attached embodiment illustrated in fig. 1；
Attached drawing 4 is cross section view at back handle groove position in attached embodiment illustrated in fig. 1；
Attached drawing 5 is that front hand grip faces axial view in attached embodiment illustrated in fig. 1；
Attached drawing 6 is the lateral 3-D view of remote holder arbor in attached embodiment illustrated in fig. 1；
Attached drawing 7 is that the section in attached embodiment illustrated in fig. 1 under the handle non-locking state of front and back, at lock core and card slot overlapping positions regards
Figure；
Attached drawing 8 is that the section in attached embodiment illustrated in fig. 1 under the handle locking state of front and back, at lock core and card slot overlapping positions regards
Figure；
Attached drawing 9 is that syringe needle stretches out outer tube, and the cross section view under inside and outside handle lock state in attached embodiment illustrated in fig. 1；
Attached drawing 10 is that syringe needle takes in outer tube, and the cross section view under inside and outside handle non-locking state in attached embodiment illustrated in fig. 1；
Attached drawing 11 is the partial cross sectional views that cap and front hand grip rigging position are screwed in attached embodiment illustrated in fig. 1.
In the figures above: 100, back handle；200, front hand grip；300, outer tube；400, inner tube；500, syringe needle；110, card slot；
111, rotation stop block face；112, introduction bevel；113, go out needle and position gear；114, back stitching positions gear；115, guide surface；120,
Elastic spacing lever；130, female Luer；210, lock core；211, locking section；212, the first confined planes；213, the second confined planes；
214, section is limited；220, cap is screwed；201, the handle conical surface；221, the turncap conical surface.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
Embodiment: a kind of Microendoscopic
Attached drawing 1 to attached drawing 6 shows a kind of a kind of specific example of the disposable remote-injection syringe of Microendoscopic of the present invention, this is primary
Property remote-injection syringe include front hand grip 200, back handle 100, outer tube 300, inner tube 400 and syringe needle 500, definition is towards curing mainly doctor
Raw one end is proximal end, and one end far from attending physician is distal end, and front hand grip 200 has an inner cavity, the back handle 100
Distal end protrudes into the inner cavity of front hand grip 200 and is slidably connected with front hand grip 200, and the front hand grip 200 is connected with the proximal end of outer tube 300
It connects, there is infusion channel inside the back handle 100, the distal end of infusion channel is connected with the proximal end of inner tube 400, inner tube 400
In outer tube 300, the syringe needle 500 is placed in the distal end of inner tube 400；The back handle 100 is on the position close to its distal end
Along two positioning gears are axially arranged with, one of positioning gear all exposes for syringe needle 500 goes out needle outside the outer tube 300
Gear 113 is positioned, another positioning gear is that back stitching of the recycling in outer tube 300 completely of syringe needle 500 positions gear 114；It is described
It positions gear and is equipped with the inside card slot 110 in groove-like；It is in boss-shaped that the inner wall of the front hand grip 200, which is equipped with inwardly,
Lock core 210, push and pull the back handle 100, make on back handle 100 go out needle positioning gear 113 on card slot 110 or back stitching positioning
Card slot 110 on gear 114 is directed at the lock core 210 of front hand grip 200, and rotates back handle 100, and lock core 210 can screw in card slot
In 110.When card slot 110 and lock core 210 lock, when lock core 210 is located in the card slot 110 of needle positioning gear 113,
Syringe needle 500 is fully extended relative to outer tube 300, when lock core 210 is located in the card slot 110 of back stitching positioning gear 114, syringe needle
500 recycle completely relative to outer tube 300.
Two are equipped at intervals in the circumferential direction that needle out positions on gear 113 and back stitching positioning gear 114 along the back handle 100
A inside card slot 110 in groove-like, one end of the card slot 110 are equipped with the initial inlet screwed in for the lock core 210, card
The other end of slot 110 is equipped with rotation stop block face 111；Two are equipped with along the circumferentially-spaced of front hand grip 200 on the inner wall of the front hand grip 200
The quantity of a inside lock core 210 in boss-shaped, lock core 210 is identical as the circumferentially upper quantity of card slot 110 of back handle, lock core
210 one end in 200 circumferential direction of front hand grip be equipped with the first confined planes 212, in the locked state, lock core 210 from it is described originate into
Mouth screws in card slot 110, and first confined planes 212 can be resisted against on the rotation stop block face 111.The card slot 110 is in institute
It states and is equipped with introduction bevel 112 at initial inlet.
The back handle 100 is set on the position close to its distal end there are two guide surface 115, the length of guide surface 115
It spends direction to be arranged along the axial direction of back handle 100, two guide surfaces 115 are arranged in parallel, and block on needle positioning gear 113 out
The initial inlet of card slot 110 connects with the guide surface 115 on initial inlet and back stitching the positioning gear 114 of slot 110；Institute
The other end of the lock core 210 in 200 circumferential direction of front hand grip is stated equipped with the second confined planes 213, first confined planes 212 and the second limit
213 coplanar horizontal of plane；In the unlocked state, the first confined planes 212 of lock core 210 do not enter in the initial inlet, described
Second confined planes 213 can be resisted against in the guide surface 115.The shape of card slot 110 is similar to sector, and back handle 100 is remote
End part because having upper and lower two guide surfaces 115, the cross sectional shapes of 100 distal portions of back handle is similar to and is cut
Go following circle.
The lock core 210 is made of in 200 circumferential direction of front hand grip limit section 214 and locking section 211, the limit
Section 214 is slightly less than width of the card slot 110 in 100 axial direction of back handle in the width in 200 axial direction of front hand grip, limits section
214 can be slightly larger than the card slot with 110 clearance fit of card slot, width of the locking section 211 in 200 axial direction of front hand grip
110 width in 100 axial direction of back handle, locking section 211 can make lock core 210 be locked at card slot 110 in card slot 110
It is interior, there is intermediate incline between locking section 211 and limit section 214.
Non-locked position in this specific example is as shown in Fig. 7, under this state, in 200 inner cavity of front hand grip limitation diagram
The confined planes 212 of 100 horizontal direction freedom degree of back handle, lock core 210 limit 100 vertical direction freedom degree of back handle in diagram,
During confined planes 212 also guarantee that back handle 100 is mobile in front hand grip 200 simultaneously, only at the position with card slot 110
Just it is able to rotate；Back handle 100 in shown in the attached drawing 7 starts to rotate clockwise, and lock core 210 starts to screw in card slot 110, when turning
When moving confined planes 212 and being overlapped with standstill face 111, back handle 100 just has rotated 90 degree, at this time front hand grip 200 and back handle
100 enter lock state, i.e., as shown in Fig. 8.
The distal end of the back handle 100 is equipped with the elastic spacing lever 120 tilted outward, and elastic spacing lever 120 is with after
The central axis of handle 100 is at an acute angle towards 100 proximal direction of back handle；When by the back handle 100 be packed into front hand grip 200
Inner cavity when, elastic spacing lever 120 is radially compressed and can be entered in front hand grip 200 by the position of the lock core 210
Chamber, elastic spacing lever 120 are unfolded behind the position by lock core 210, and elastic spacing lever 120 is resisted against lock core 210 preceding
On side in 200 axial direction of handle.
The distal end of the front hand grip 200 is equipped with and screws cap 220, and the distal end for screwing cap 220 and front hand grip 200 is equipped with matching
The internal and external threads of conjunction.
The distal end of the front hand grip 200 is equipped with the handle conical surface 201, and the distal end for screwing 220 screw thread of cap is bored equipped with turncap
Face 221, in the assembled condition, the handle conical surface 201 can be fitted closely with the turncap conical surface 221.
The proximal end of the back handle 100 is equipped with the female Luer 130 of locking.
The specific work process of the present embodiment: use process is as shown in figure 9, postpone forward handle 100, when back handle 100
Distal portions are pushed completely into 200 inner cavity of front hand grip, and two handle side end faces are overlapped and position, and in this state, back handle 100 goes out
The card slot 110 that needle positions gear 113 is directed at the lock core 210 of front hand grip 200, can rotate back handle 100, two handles are locked
Determine, while syringe needle 500 also stretches out 300 distal end of outer tube, in the axial direction 100 relative positioning of front hand grip 200 and back handle, syringe needle 500
Preshoot or retrogressing will not occur, avoid rotation angle in the circumferential and spend senior general's lock core 210 and screw out and fail from card slot 110,
Syringe needle 500 can be pierced into tissue at this time, and the female Luer 130 of syringe connection 100 proximal end of back handle with medicine is carried out
Drug injection.After the completion of injection, as shown in Figure 10, back handle 100 is rotated, screws out lock core 210 from card slot 110, returned
Draw back handle 100, until the elastic spacing lever 120 of the unfolded state on back handle 100 resists front hand grip 200, make back handle
100 will not be pulled out front hand grip 200, while play positioning action, under this state, back stitching positioning position 114 on back handle 100
Card slot 110 be aligned front hand grip 200 lock core 210, locked with next facilitating；Also income is outer completely for syringe needle 500 at this time
In pipe 300, then rotates back handle 100 and instrument is extracted into endoscope channel after the completion of two handle lockings.
As shown in figure 11, the distalmost end of front hand grip 200, which contains, screws cap 220, screws cap 220 and 200 distalmost end of front hand grip
The internal and external threads matched are provided with, and front hand grip 200 is respectively arranged with the handle conical surface 201 with the distal end for screwing 220 screw thread of cap
With the turncap conical surface 221.To be covered first on outer tube 300 when assembly and screw cap 220, after by 300 one end of outer tube insertion handle cone
Face 201, then will screw cap 220 and be tightened in front hand grip 200 during tightening, screws the turncap conical surface 221 of cap 220 to hand
The handle conical surface 201 is adjacent to, and is clamped in 300 head end of outer tube between two conical surfaces, is fixed outer tube using this mechanical system
300。
Some explanations about above-described embodiment:
(1) in the present embodiment, the back handle 100 is provided only with two positionings along axial direction on the position close to its distal end
Position can also position in needle out in practice and control out needle equipped at least one between gear 113 and back stitching positioning gear 114
The long control gear of the needle of length, realizes and locks in the different location of front hand grip 200 and back handle 100, and then controls syringe needle 500 and stretch
The different length of outer tube 300 out.
(2) two inside card slots 110 in groove-like are equipped at intervals with along the circumferential direction of the back handle 100, accordingly,
Lock core 210 there are two setting on the inner wall of front hand grip 200, be rotated by 90 ° back handle 100 can be realized locking and unlocking every time.When
So, back handle 100 is rotated 180 ° of realization locking and unlocking by a settable card slot 110 and a lock core 210 in the circumferential；
For another example, in the circumferential can uniform intervals three card slots 110 and three lock cores 210 are set, back handle 100 is rotated into 60 ° of realizations
Locking and unlocking.The quantity of circumferentially upper card slot 110 and lock core 210 is only used as preferred version to implement in the present embodiment.
(3) cross section of the distal portions of the back handle 100 is incomplete circle, can be by the guide surface 115
For incomplete circular string, incomplete circular lack part area is greater than 210 area of lock core.
(4) lock core 210 is made of in 200 circumferential direction of front hand grip limit section 214 and locking section 211, in reality
In the production of border in order to process, it is easy to assembly, limit section 214 and locking section 211 and be designed to integral structure.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of disposable remote-injection syringe of Microendoscopic, including front hand grip, back handle, outer tube, inner tube and syringe needle, definition
It is proximal end towards one end of attending physician, one end far from attending physician is distal end, and front hand grip is protruded into the distal end of the back handle
Interior and be slidably connected with front hand grip, the front hand grip is connected with the proximal end of outer tube, has infusion channel inside the back handle,
The distal end of infusion channel is connected with the proximal end of inner tube, and inner tube is located in outer tube, and the syringe needle is placed in the distal end of inner tube；Its feature
Be: back handle edge on the position close to its distal end is axially arranged at least two positioning gears, one of positioning
Position is that the needle that goes out that syringe needle all exposes outside the outer tube positions gear, another positioning gear is that syringe needle is recycled in outer tube completely
Interior back stitching positions gear；The positioning gear is equipped with the inside card slot in groove-like；It is set on the inner wall of the front hand grip
There is the inside lock core in boss-shaped, push and pull the back handle, keeps the card slot gone out on needle positioning gear on back handle or back stitching fixed
The lock core of card slot alignment front hand grip on the gear of position, and back handle is rotated, lock core can screw in card slot.
2. a kind of disposable remote-injection syringe of Microendoscopic according to claim 1, it is characterised in that: the back handle
On positioned in needle out and be equipped with long control gear of needle that at least one controls out needle length between gear and back stitching positioning gear.
3. a kind of disposable remote-injection syringe of Microendoscopic according to claim 1 or 2, it is characterised in that: each
Along the circumferentially-spaced equipped at least one inside card slot in groove-like, the card slot of the back handle on the positioning gear
One end be equipped with the initial inlet screwed in for the lock core, the other end of card slot is equipped with rotation stop block face；The inner wall of the front hand grip
On along the circumferentially-spaced equipped at least one inside lock core in boss-shaped of front hand grip, the quantity of lock core in back handle circumferential direction
The quantity of card slot is identical, and the one end of lock core in front hand grip circumferential direction is equipped with the first confined planes, and in the locked state, lock core is from described
Initial inlet screws in card slot, and first confined planes can be resisted against on the rotation stop block face.
4. a kind of disposable remote-injection syringe of Microendoscopic according to claim 3, it is characterised in that: the back handle
Guide surface is equipped on the position close to its distal end, the length direction of the guide surface is set along the axial direction of back handle
Set, out needle positioning gear on card slot initial inlet and back stitching positioning gear on card slot initial inlet with the guide surface
Connect；The other end of the lock core in front hand grip circumferential direction is equipped with the second confined planes, first confined planes and the second confined planes
Coplanar horizontal；In the unlocked state, the first confined planes of lock core do not enter in the initial inlet, and second confined planes can
It is resisted against in the guide surface.
5. a kind of disposable remote-injection syringe of Microendoscopic according to claim 3, it is characterised in that: the card slot exists
Introduction bevel is equipped at the initial inlet.
6. a kind of disposable remote-injection syringe of Microendoscopic according to claim 3, it is characterised in that: the lock core exists
It is made of in front hand grip circumferential direction limit section and locking section, width of the limit section in front hand grip axial direction is less than described
Width of the card slot in back handle axial direction, limit section can be with card slot clearance fit, and the locking section is in front hand grip axial direction
Width is greater than width of the card slot in back handle axial direction, and locking section can be such that lock core is locked in card slot in card slot,
There is intermediate incline between locking section and limit section.
7. a kind of disposable remote-injection syringe of Microendoscopic according to claim 1, it is characterised in that: the back handle
Distal end be equipped with the elastic spacing lever that tilts outward, elastic spacing lever is with the central axis of back handle close towards back handle
Extreme direction is at an acute angle；When the back handle to be packed into the inner cavity of front hand grip, elastic spacing lever is radially compressed and can lead to
The position for crossing the lock core enters front hand grip inner cavity, and elastic spacing lever is unfolded behind the position by lock core, elastic spacing shelves
Bar is resisted against lock core on the side in front hand grip axial direction.
8. a kind of disposable remote-injection syringe of Microendoscopic according to claim 1, it is characterised in that: the front hand grip
Distal end be equipped with and screw cap, screw cap and the distal end of front hand grip and be equipped with the internal and external threads matched.
9. a kind of disposable remote-injection syringe of Microendoscopic according to claim 8, it is characterised in that: the front hand grip
Distal end be equipped with the handle conical surface, the distal end for screwing cap thread be equipped with the turncap conical surface, in the assembled condition, the handle conical surface
It can be fitted closely with the turncap conical surface.
10. a kind of disposable remote-injection syringe of Microendoscopic according to claim 1, it is characterised in that: the defensive position
The proximal end of handle is equipped with the female Luer of locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811127676.1A CN109173027B (en) | 2018-09-27 | 2018-09-27 | Disposable remote injection needle under endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811127676.1A CN109173027B (en) | 2018-09-27 | 2018-09-27 | Disposable remote injection needle under endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109173027A true CN109173027A (en) | 2019-01-11 |
| CN109173027B CN109173027B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811127676.1A Active CN109173027B (en) | 2018-09-27 | 2018-09-27 | Disposable remote injection needle under endoscope |
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| CN (1) | CN109173027B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021233385A1 (en) * | 2020-05-20 | 2021-11-25 | 常州市久虹医疗器械有限公司 | Controllable rotary mucous membrane incision knife |
| CN115349808A (en) * | 2022-07-11 | 2022-11-18 | 湖南省华芯医疗器械有限公司 | Reuse section of endoscope handle, endoscope handle and endoscope |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109173027B (en) | 2024-01-23 |
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