CN203710103U - Novel puncture outfit - Google Patents
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- CN203710103U CN203710103U CN201420084813.9U CN201420084813U CN203710103U CN 203710103 U CN203710103 U CN 203710103U CN 201420084813 U CN201420084813 U CN 201420084813U CN 203710103 U CN203710103 U CN 203710103U
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- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 10
- 241001149930 Protura <class> Species 0.000 claims description 21
- 210000002435 tendon Anatomy 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 241000283216 Phocidae Species 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007912 intraperitoneal administration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 208000037816 tissue injury Diseases 0.000 description 1
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Abstract
The utility model relates to a novel puncture outfit, and solves the problems like unreasonable design of the prior art. The novel puncture outfit comprises a puncture bushing, a blade extension type puncture needle, a bushing seat, an air shuttle valve, a seal ring, and a cover body provided with a puncture hole, wherein an annular installation ring is arranged between the cover body and the seal ring, the air shuttle valve comprises a cylinder body which is internally provided with two sealing surfaces, two opposite sharp grooves are formed between the two sealing surfaces, the lower ends of the two sealing surfaces are in contact, the lower end of the cylinder body is closed, a fixing cylinder body is inserted into the cylinder body, two opposite insertion pins which are adaptive to the sharp grooves in shape are arranged at the lower end of the fixing cylinder body, the insertion pins are arranged in the sharp grooves, and a locating mechanism is further arranged between the fixing cylinder body and the cylinder body. The puncture outfit has the advantages of reasonable design, convenience in use, firm locating of the air shuttle valve, easiness in assembly, low difficulty in puncturing, convenience in holding, and high safety, a blade can be located and expanded, and the damage to a human body is small when the puncture outfit is used.
Description
Technical field
This utility model belongs to technical field of medical instruments, especially relates to a kind of novel puncture device.
Background technology
In Wicresoft's medical-therapeutic treatment of human body operation, once find focus in body, need operation or excision, in operation process, what first need application is perforator, perforator is a kind ofly to pierce through stomach wall and for other operating theater instruments provide the operating theater instruments that enters body cavity passage, belong to a kind of Minimally Invasive Surgery apparatus.Perforator generally includes as the sleeve assembly of other operating theater instruments admission passages with through the puncture needle in described sleeve assembly.In perforator, the formation of Intraabdominal pressure mainly relies on air shuttle valve to complete, common air shuttle valve adopts infundibulate more, the otch that has a straight line to connect in air shuttle valve bottom, utilize the contractility of air shuttle valve self to form sealing, but this kind of air shuttle valve exists many deficiencies, for example, sealing effectiveness is poor, easily produce gas leak phenomenon, air shuttle valve is fixing firm not, apparatus easily causes the circumferential rotation of air shuttle valve while rotation, apparatus easily causes air shuttle valve turnup while extraction out, in addition, mostly be and be set directly at puncture needle end at the blade of existing puncture needle, when use, blade easily causes intraperitoneal tissue injury, cause surgical trouble, in addition, existing puncture needle also exists: it is reasonable not to design, use inconvenience, be not easy to grip, the problems such as venipuncture difficulty is large.
The problem existing in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.For example; Chinese patent literature discloses a kind of disposable use band protection perforator [application number: 200620140159.4]; this disposable use band protection perforator; comprise puncture needle, the pipe of threading a needle, the base of threading a needle, sealing device and bonnet; puncture needle is placed in the pipe of threading a needle; thread a needle base and sealing device is tightly connected; bonnet is connected with sealing device; the pipe of threading a needle is mated and is connected with the base bayonet socket of threading a needle by the pipe joint of threading a needle with the base of threading a needle, and threading a needle to manage and thread a needle is provided with the seal of tube circle of threading a needle between base.
Such scheme has solved the problem that existing puncture needle blade cannot be flexible to a certain extent, but this scheme still exists: it is reasonable not to design, air shuttle valve is fixing firm not, apparatus easily causes the circumferential rotation of air shuttle valve while rotation, apparatus easily causes air shuttle valve turnup while extraction out, use inconvenience, puncture needle is not easy to grip, the problem that venipuncture difficulty is large.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of simple and reasonable, and air shuttle valve firm position, is easy to the novel puncture device assembling.
For achieving the above object, this utility model has adopted following technical proposal: this novel puncture device, comprise puncture casing, in described puncture casing, be equipped with the blade retractable formula puncture needle that outer end extends to puncture outfit casing tube front end outside, described puncture casing end is provided with and is casing seat cylindraceous, in described casing seat, be provided with the air shuttle valve of being made by elastomeric material, described air shuttle valve upper end is provided with sealing ring, described casing seat upper end is provided with the lid with puncturing hole, and between described lid and sealing ring, be provided with annular installing ring, it is characterized in that, described air shuttle valve comprise be cylindric and peripheral outer wall and casing seat inner circumferential wall mutually against cylindrical body, in described cylindrical body, be provided with two sealing surfaces that are oppositely arranged and are tilted to downward-extension, between two sealing surfaces, form two opposed sharp grooves, the lower end of two sealing surfaces is in contact with one another and can be by described cylindrical body lower end closed, in described cylindrical body, be inserted with the fixed cylinder that peripheral outer wall and cylindrical body inner circumferential wall lean and be made up of rigid material, described fixed cylinder lower end has the pin that two opposite and shapes and sharp groove adapt, described pin is arranged in sharp groove, between described fixed cylinder and cylindrical body, be also provided with detent mechanism.In this structure, cylindrical body leans with casing seat and fixed cylinder respectively, makes air shuttle valve fixation, and in addition, detent mechanism makes air shuttle valve be easy to be difficult for circumferentially rotating in assembling and use procedure.
In above-mentioned novel puncture device, described detent mechanism comprises two raised lines that are arranged on cylindrical body inwall oppositely and axially arrange, between the root of two pins, be respectively equipped with a locating notch, described raised line and locating notch and described locating notch are connected on raised line; Described raised line respectively self sealss face end upwards extends setting and is connected as a single entity structure with cylindrical body; The side of described raised line does not exceed the inwall of fixed cylinder.Obviously,, in the time that raised line is connected to locating notch, make cylindrical body be difficult for circumferentially rotating; Ensure the smooth of fixed cylinder inwall simultaneously, be difficult for the insertion of apparatus to impact.
In above-mentioned novel puncture device, the lower end of described cylindrical body is radially outward provided with two projections that are symmetrically set, and one end of described protruding self sealss face is axially to downward-extension; Described projection comprises two convex tendons that axially arrange along cylindrical body outer wall, and described convex tendon is connected towards the arcwall face of casing seat by opening, and described convex tendon and arcwall face are all connected as a single entity structure with cylindrical body.Projection radially exceed cylindrical body lower end and with casing seat mutually against, make cylindrical body fixation; Make the resilience force of convex tendon larger, it is tightr that convex tendon coordinates with casing seat.
In above-mentioned novel puncture device, described sealing surface is provided with some axially extended reinforcements; Described cylindrical body upper end is provided with the circular orientation circle being connected as a single entity structure with cylindrical body, described circular orientation circle two ends lean with the pressure ring that is arranged on fixed cylinder upper end with the annular concave platform being arranged in casing seat respectively, and described pressure ring does not exceed the upper end of described casing seat.When reinforcement passes apparatus, be difficult for sealing surface to cause damage, and can improve the resilience force of sealing surface, be difficult for causing sealing surface turnup, make circular orientation circle to be firmly fixed between annular concave platform and pressure ring simultaneously.
In above-mentioned novel puncture device, described blade retractable formula puncture needle comprises hollow tube, described hollow tube one end is fixed with the needle stand with chamber, the other end is socketed with puncture shell, described puncture shell upper end has puncture conehead, described puncture awl cephalic par is provided with insert groove, in hollow tube, be equipped with the puncture inner core that can slide along hollow tube, described puncture inner core one end is provided with blade, the other end is arranged in described needle stand, described puncture inner core is connected by position limiting structure with puncture shell, in described needle stand, be provided with and can control described puncture inner core and the limitation locking structure that shell interfixes or mutually slide that punctures, described puncture shell comprises and is middle cylinder cylindraceous, described puncture conehead is arranged on the upper end of middle cylinder, it is partially conical that described puncture conehead is, described middle cylinder is connected as a single entity structure and seamlessly transits between the two with puncture conehead, described middle cylinder lower end is provided with the reducing cylinder that is frustum of a cone tubular, on described hollow tube, be also socketed with and be union body cylindraceous, described union body one end and needle stand are fixedly linked, the other end has the conical shell of rounded tubular, described needle stand comprises upper half-shell, described upper half-shell is provided with housing lower half by location structure, and described housing lower half both sides have arc closing waist.In this structure, realize the flexible of blade by limitation locking structure, when resistance that the shell that punctures when use runs into is larger, puncture shell down sliding exposes blade, resistance hour blade is retracted, and is partially conical puncture conehead venipuncture difficulty is reduced, in addition, needle stand profile meets ergonomic designs, is convenient to grip.
In above-mentioned novel puncture device, described limitation locking structure comprises the installation cylindrical shell being arranged on needle stand, in described installation cylindrical shell, being provided with two is oppositely arranged and along the axially extended gathering sill of positioning tube body, described puncture inner core is arranged in to install in cylindrical shell and on described puncture inner core and is respectively equipped with the first locating piece and the second locating piece that are positioned at gathering sill, on described needle stand, be provided with and be positioned at the rectangle frame that mounting cylinder body is peripheral and can move along needle stand transverse horizontal by guide frame, described rectangle frame one end is provided with limited post, the other end is provided with spacing dop, on the cylindrical shell of location, be also provided with the dop that coordinates with the mutual clamping of spacing dop, also hingedly on described housing lower half be provided with the button corresponding with rectangle frame, between described limited post and housing lower half, be provided with the first back-moving spring, between described puncture inner core and upper half-shell, be provided with the second back-moving spring.Promote rectangle frame by button and move, the first locating piece and limited post stagger, spacing dop with coordinate the mutual clamping of dop, realize puncture inner core movement, blade exposes; After puncture inner core moves, the second locating piece promotes spacing dop and departs from cooperation dop, and under the first action of reset spring, rectangle frame resets, and under the second action of reset spring, puncture inner core resets, and blade is retracted.
In above-mentioned novel puncture device, described guide frame comprises two card adapter plates that are oppositely arranged on mounting cylinder body periphery, and described card adapter plate is provided with horizontally disposed draw-in groove, and described rectangle frame is connected in draw-in groove.
In above-mentioned novel puncture device, described location structure comprises some locating dowels that are arranged in upper half-shell, is provided with that locating slot and described locating dowel insert in locating slot one to one with locating dowel in described housing lower half.
In above-mentioned novel puncture device, described position limiting structure comprises the stopper slot being arranged in puncture shell, is provided with the spacer pin being connected with the inner core that punctures in described stopper slot.This structure can prevent from puncturing shell depart from puncture inner core.
In above-mentioned novel puncture device, described puncture conehead, middle cylinder and reducing cylinder are connected as a single entity structure; On described middle cylinder, be circumferentially with scrobicular ring.
Compared with prior art, the advantage of this novel puncture device is: reasonable in design, easy to use, air shuttle valve firm position, be easy to assembling, be difficult for circumferentially rotating, venipuncture difficulty is little, is convenient to grip, can realize the locking of blade with flexible, safe, little to human body infringement when use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure explosive view of puncture casing in this utility model.
Fig. 3 is the structural representation of air shuttle valve in this utility model.
Fig. 4 is the structural representation of fixed cylinder in this utility model.
Fig. 5 is the structure cutaway view of blade retractable formula puncture needle in this utility model.
Fig. 6 is the enlarged drawing at A place in Fig. 5.
Fig. 7 is partial structurtes schematic diagram of the present utility model.
In figure, puncture casing 1, casing seat 11, annular concave platform 111, sealing ring 12, lid 13, puncturing hole 131, annular installing ring 14, air shuttle valve 2, cylindrical body 21, sealing surface 22, point groove 22a, reinforcement 221, raised line 23, projection 24, convex tendon 241, arcwall face 242, circular orientation circle 25, fixed cylinder 3, pin 31, locating notch 32, pressure ring 33, hollow tube 4, puncture inner core 41, stopper slot 411, spacer pin 412, blade 42, needle stand 5, upper half-shell 51, housing lower half 52, arc closing waist 521, locating dowel 53, locating slot 54, puncture shell 6, puncture conehead 61, insert groove 62, middle cylinder 63, scrobicular ring 631, reducing cylinder 64, limitation locking structure 7, cylindrical shell 71 is installed, gathering sill 72, the first locating piece 73, the second locating piece 74, rectangle frame 75, limited post 76, spacing dop 77, coordinate dop 78, button 79, the first back-moving spring 791, the second back-moving spring 792, union body 8, conical shell 81, card adapter plate 9, draw-in groove 91.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As Figure 1-4, this novel puncture device, comprise puncture casing 1, in puncture casing 1, be equipped with the blade retractable formula puncture needle that outer end extends to puncture outfit casing tube 1 front end outside, puncture casing 1 end is provided with and is casing seat 11 cylindraceous, in casing seat 11, be provided with the air shuttle valve 2 of being made by elastomeric material, air shuttle valve 2 upper ends are provided with sealing ring 12, casing seat 11 upper ends are provided with the lid 13 with puncturing hole 131, and between lid 13 and sealing ring 12, be provided with annular installing ring 14, air shuttle valve 2 comprise be cylindric and peripheral outer wall and casing seat 11 inner circumferential wall mutually against cylindrical body 21, in cylindrical body 21, be provided with two sealing surfaces 22 that are oppositely arranged and are tilted to downward-extension, between two sealing surfaces 22, form two opposed sharp groove 22a, the lower end of two sealing surfaces 22 is in contact with one another and can be by cylindrical body 21 lower end closed, in cylindrical body 21, be inserted with the fixed cylinder 3 that peripheral outer wall and cylindrical body 21 inner circumferential wall lean and are made up of rigid material, fixed cylinder 3 lower ends have the pin 31 that two opposite and shapes and sharp groove 22a adapt, pin 31 is arranged in sharp groove 22a, between fixed cylinder 3 and cylindrical body 21, be also provided with detent mechanism, in this structure, cylindrical body 21 leans with casing seat 11 and fixed cylinder 3 respectively, make air shuttle valve 2 fixations, in addition, detent mechanism makes air shuttle valve 2 be easy to be difficult for circumferentially rotating in assembling and use procedure.
Particularly, detent mechanism comprises between the root of 23, two pins 31 of two raised lines that are arranged on cylindrical body 21 inwalls and axially arrange oppositely and is respectively equipped with a locating notch 32, and raised line 23 is connected on raised line 23 with locating notch 32 and locating notch 32; Raised line 23 respectively self sealss face 22 ends upwards extends setting and is connected as a single entity structure with cylindrical body 21; The side of raised line 23 does not exceed the inwall of fixed cylinder 3, obviously, in the time that raised line 23 is connected to locating notch 32, makes cylindrical body 21 be difficult for circumferentially rotating; Ensure the smooth of fixed cylinder 3 inwalls simultaneously, be difficult for the insertion of apparatus to impact.
Further, the lower end of cylindrical body 21 is radially outward provided with two projections that are symmetrically set 24, projection 24 self sealss faces 22 one end axially to downward-extension, projection 24 radially exceed cylindrical body 21 lower ends and with casing seat 11 mutually against, make cylindrical body 21 fixations.The projection 24 here comprises two convex tendons 241 that axially arrange along cylindrical body 21 outer walls, convex tendon 241 is connected towards the arcwall face 242 of casing seat 11 by opening, and convex tendon 241 is all connected as a single entity structure with cylindrical body 21 with arcwall face 242, this structure makes the resilience force of convex tendon 241 larger, and it is tightr that convex tendon 241 coordinates with casing seat 11.
In addition, sealing surface 22 is provided with some axially extended reinforcements 221, is difficult for sealing surface 22 to cause damage, and can improves the resilience force of sealing surface 22 when apparatus is passed, and is difficult for causing sealing surface 22 turnups.Cylindrical body 21 upper ends are provided with the circular orientation circle 25 being connected as a single entity structure with cylindrical body 21, circular orientation circle 25 two ends lean with the pressure ring 33 that is arranged on fixed cylinder 3 upper ends with the annular concave platform 111 being arranged in casing seat 11 respectively, and pressure ring 33 does not exceed the upper end of casing seat 11, circular orientation circle 25 can be firmly fixed between annular concave platform 111 and pressure ring 33.
As Fig. 1, 5, 6, shown in 7, blade retractable formula puncture needle comprises hollow tube 4, hollow tube 4 one end are fixed with the needle stand 5 with chamber, the other end is socketed with puncture shell 6, puncture shell 6 upper ends have puncture conehead 61, puncture conehead 61 ends are provided with insert groove 62, in hollow tube 4, be equipped with the puncture inner core 41 that can slide along hollow tube 4, puncture inner core 41 one end are provided with blade 42, the other end is arranged in needle stand 5, puncture inner core 41 is connected by position limiting structure with puncture shell 6, in needle stand 5, be provided with and can control puncture inner core 41 and the limitation locking structure 7 that shell 6 interfixes or mutually slide that punctures, puncture shell 6 comprises and is middle cylinder 63 cylindraceous, puncture conehead 61 is arranged on the upper end of middle cylinder 63, it is partially conical that puncture conehead 61 is, middle cylinder 63 is connected as a single entity structure and seamlessly transits between the two with puncture conehead 61, middle cylinder 63 lower ends are provided with the reducing cylinder 64 that is frustum of a cone tubular, on hollow tube 4, be also socketed with and be union body 8 cylindraceous, union body 8 one end and needle stand 5 are fixedly linked, the other end has the conical shell 81 of rounded tubular, needle stand 5 comprises upper half-shell 51, upper half-shell 51 is provided with housing lower half 52 by location structure, and housing lower half 52 both sides have arc closing waist 521, realize the flexible of blade 42 by limitation locking structure 7, when resistance that the shell 6 that punctures when use runs into is larger, puncture shell 6 down slidings expose blade 42, resistance hour blade 42 is retracted, being partially conical puncture conehead 61 reduces venipuncture difficulty, in addition, needle stand 5 profiles meet ergonomic designs, be convenient to grip.
Particularly, limitation locking structure 7 comprises the installation cylindrical shell 71 being arranged on needle stand 5, in installation cylindrical shell 71, being provided with two is oppositely arranged and the axially extended gathering sill 72 of edge installation cylindrical shell 71, puncture inner core 41 is arranged in installation cylindrical shell 71 and on puncture inner core 41 and is respectively equipped with the first locating piece 73 and the second locating piece 74 that are positioned at gathering sill 72, on needle stand 5, be provided with to be positioned at by guide frame the rectangle frame 75 that cylindrical shell 71 is peripheral and can move along needle stand 5 transverse horizontal is installed, rectangle frame 75 one end are provided with limited post 76, the other end is provided with spacing dop 77, install be also provided with on cylindrical shell 71 with spacing dop 77 mutual clampings coordinate dop 78, the hinged button corresponding with rectangle frame 75 79 that be provided with also on housing lower half 52, between limited post 76 and housing lower half 52, be provided with the first back-moving spring 791, between puncture inner core 41 and upper half-shell 51, be provided with the second back-moving spring 792, promoting rectangle frame 75 by button 79 moves, the first locating piece 73 staggers with limited post 76, spacing dop 77 with coordinate the mutual clamping of dop 78, realize the movement of puncture inner core 41, blade 42 exposes, after puncture inner core 41 moves, the second locating piece 74 promotes spacing dop 77 and departs from cooperation dop 78, and under the first back-moving spring 791 effects, rectangle frame 75 resets, and under the second back-moving spring 792 effects, puncture inner core 41 resets, and blade 42 is retracted.Further guide frame comprises that two are oppositely arranged on the card adapter plate 9 that cylindrical shell 71 peripheries are installed, and card adapter plate 9 is provided with horizontally disposed draw-in groove 91, and rectangle frame 75 is connected in draw-in groove 91.
The location structure here comprises some locating dowels 53 that are arranged in upper half-shell 51 in addition, is provided with that locating slot 54 and locating dowel 53 insert in locating slot 54 one to one with locating dowel 53 in housing lower half 52.Position limiting structure comprises the stopper slot 411 being arranged in puncture shell 6, is provided with the spacer pin 412 being connected with the inner core 41 that punctures in stopper slot 411, and the shell 6 that can prevent from like this puncturing departs from puncture inner core 41.Puncture conehead 61, middle cylinder 63 are connected as a single entity structure with reducing cylinder 64.On middle cylinder 63, be circumferentially with scrobicular ring 631.
Specific embodiment described herein is only to the explanation for example of this utility model spirit.This utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used puncture casing 1 herein, casing seat 11, annular concave platform 111, sealing ring 12, lid 13, puncturing hole 131, annular installing ring 14, air shuttle valve 2, cylindrical body 21, sealing surface 22, point groove 22a, reinforcement 221, raised line 23, projection 24, convex tendon 241, arcwall face 242, circular orientation circle 25, fixed cylinder 3, pin 31, locating notch 32, pressure ring 33, hollow tube 4, puncture inner core 41, stopper slot 411, spacer pin 412, blade 42, needle stand 5, upper half-shell 51, housing lower half 52, arc closing waist 521, locating dowel 53, locating slot 54, puncture shell 6, puncture conehead 61, insert groove 62, middle cylinder 63, scrobicular ring 631, reducing cylinder 64, limitation locking structure 7, cylindrical shell 71 is installed, gathering sill 72, the first locating piece 73, the second locating piece 74, rectangle frame 75, limited post 76, spacing dop 77, coordinate dop 78, button 79, the first back-moving spring 791, the second back-moving spring 792, union body 8, conical shell 81, card adapter plate 9, draw-in groove 91 terms such as grade, but do not get rid of the probability that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with this utility model spirit.
Claims (10)
1. a novel puncture device, comprise puncture casing (1), in described puncture casing (1), be equipped with the blade retractable formula puncture needle that outer end extends to puncture outfit casing tube (1) front end outside, described puncture casing (1) end is provided with and is casing seat cylindraceous (11), in described casing seat (11), be provided with the air shuttle valve (2) of being made by elastomeric material, described air shuttle valve (2) upper end is provided with sealing ring (12), described casing seat (11) upper end is provided with the have puncturing hole lid (13) of (131), and be provided with annular installing ring (14) between described lid (13) and sealing ring (12), it is characterized in that, described air shuttle valve (2) comprise be cylindric and peripheral outer wall and casing seat (11) inner circumferential wall mutually against cylindrical body (21), in described cylindrical body (21), be provided with two sealing surfaces (22) that are oppositely arranged and are tilted to downward-extension, between two sealing surfaces (22), form two opposed sharp grooves (22a), the lower end of two sealing surfaces (22) is in contact with one another and can be by described cylindrical body (21) lower end closed, in described cylindrical body (21), be inserted with the fixed cylinder (3) that peripheral outer wall and cylindrical body (21) inner circumferential wall lean and be made up of rigid material, described fixed cylinder (3) lower end has the pin (31) that two opposite and shapes and sharp groove (22a) adapt, described pin (31) is arranged in sharp groove (22a), between described fixed cylinder (3) and cylindrical body (21), be also provided with detent mechanism.
2. novel puncture device according to claim 1, it is characterized in that, described detent mechanism comprises two raised lines (23) that are arranged on cylindrical body (21) inwall oppositely and axially arrange, between the root of two pins (31), be respectively equipped with a locating notch (32), described raised line (23) and locating notch (32) and described locating notch (32) are connected on raised line (23); Described raised line (23) respectively self sealss face (22) end upwards extends setting and is connected as a single entity structure with cylindrical body (21); The side of described raised line (23) does not exceed the inwall of fixed cylinder (3).
3. novel puncture device according to claim 2, is characterized in that, the lower end of described cylindrical body (21) is radially outward provided with two projections that are symmetrically set (24), and one end of described projection (24) self sealss face (22) is axially to downward-extension; Described projection (24) comprises two convex tendons (241) that axially arrange along cylindrical body (21) outer wall, described convex tendon (241) is connected towards the arcwall face (242) of casing seat (11) by opening, and described convex tendon (241) is all connected as a single entity structure with cylindrical body (21) with arcwall face (242).
4. novel puncture device according to claim 1, is characterized in that, described sealing surface (22) is provided with some axially extended reinforcements (221); Described cylindrical body (21) upper end is provided with the circular orientation circle (25) being connected as a single entity structure with cylindrical body (21), described circular orientation circle (25) two ends lean with the pressure ring (33) that is arranged on the annular concave platform (111) in casing seat (11) and is arranged on fixed cylinder (3) upper end respectively, and the upper end of the casing seat (11) of described pressure ring (33) described in not exceeding.
5. according to the novel puncture device described in claim 1 or 2 or 3 or 4, it is characterized in that, described blade retractable formula puncture needle comprises hollow tube (4), described hollow tube (4) one end is fixed with the needle stand (5) with chamber, the other end is socketed with puncture shell (6), described puncture shell (6) upper end has puncture conehead (61), described puncture conehead (61) end is provided with insert groove (62), in hollow tube (4), be equipped with the puncture inner core (41) that can slide along hollow tube (4), described puncture inner core (41) one end is provided with blade (42), the other end is arranged in described needle stand (5), described puncture inner core (41) is connected by position limiting structure with puncture shell (6), in described needle stand (5), be provided with and can control the limitation locking structure (7) that described puncture inner core (41) interfixes or mutually slides with puncture shell (6), described puncture shell (6) comprises and is middle cylinder cylindraceous (63), described puncture conehead (61) is arranged on the upper end of middle cylinder (63), it is partially conical that described puncture conehead (61) is, described middle cylinder (63) is connected as a single entity structure and seamlessly transits between the two with puncture conehead (61), described middle cylinder (63) lower end is provided with the reducing cylinder (64) that is frustum of a cone tubular, on described hollow tube (4), be also socketed with and be union body cylindraceous (8), described union body (8) one end and needle stand (5) are fixedly linked, the other end has the conical shell (81) of rounded tubular, described needle stand (5) comprises upper half-shell (51), described upper half-shell (51) is provided with housing lower half (52) by location structure, and described housing lower half (52) both sides have arc closing waist (521).
6. novel puncture device according to claim 5, it is characterized in that, described limitation locking structure (7) comprises the installation cylindrical shell (71) being arranged on needle stand (5), in described installation cylindrical shell (71), being provided with two is oppositely arranged and the edge installation axially extended gathering sill of cylindrical shell (71) (72), described puncture inner core (41) is arranged in to install and in cylindrical shell (71) and on described puncture inner core (41), is respectively equipped with the first locating piece (73) and the second locating piece (74) that are positioned at gathering sill (72), described needle stand (5) is upper to be provided with and to be positioned at the rectangle frame (75) of cylindrical shell (71) periphery being installed and moving along needle stand (5) transverse horizontal by guide frame, described rectangle frame (75) one end is provided with limited post (76), the other end is provided with spacing dop (77), install on cylindrical shell (71), be also provided with spacing dop (77) mutually clamping coordinate dop (78), described housing lower half (52) is upper is also hingedly provided with the button (79) corresponding with rectangle frame (75), between described limited post (76) and housing lower half (52), be provided with the first back-moving spring (791), between described puncture inner core (41) and upper half-shell (51), be provided with the second back-moving spring (792).
7. novel puncture device according to claim 6, it is characterized in that, described guide frame comprises that two are oppositely arranged on the card adapter plate (9) that cylindrical shell (71) periphery is installed, described card adapter plate (9) is provided with horizontally disposed draw-in groove (91), and described rectangle frame (75) is connected in draw-in groove (91).
8. novel puncture device according to claim 5, it is characterized in that, described location structure comprises some locating dowels (53) that are arranged in upper half-shell (51), is provided with that locating slot (54) and described locating dowel (53) insert in locating slot (54) one to one with locating dowel (53) in described housing lower half (52).
9. novel puncture device according to claim 5, it is characterized in that, described position limiting structure comprises the stopper slot (411) being arranged in puncture shell (6), is provided with the spacer pin (412) being connected with the inner core that punctures (41) in described stopper slot (411).
10. novel puncture device according to claim 5, is characterized in that, described puncture conehead (61), middle cylinder (63) are connected as a single entity structure with reducing cylinder (64); On described middle cylinder (63), be circumferentially with scrobicular ring (631).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084813.9U CN203710103U (en) | 2014-02-26 | 2014-02-26 | Novel puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084813.9U CN203710103U (en) | 2014-02-26 | 2014-02-26 | Novel puncture outfit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203710103U true CN203710103U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420084813.9U Expired - Lifetime CN203710103U (en) | 2014-02-26 | 2014-02-26 | Novel puncture outfit |
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| CN (1) | CN203710103U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982704A (en) * | 2016-07-05 | 2016-10-05 | 江苏风和医疗器材有限公司 | Seal cartridge and puncture outfit with same |
| CN106618688A (en) * | 2016-12-09 | 2017-05-10 | 成都五义医疗科技有限公司 | Puncture needle containing harmless protector |
| CN108784803A (en) * | 2018-07-18 | 2018-11-13 | 杭州康基医疗器械股份有限公司 | puncture outfit |
| CN109864807A (en) * | 2019-04-04 | 2019-06-11 | 扬州大学附属医院 | A kind of new medical lumbar puncture needle |
| CN109984816A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN111920488A (en) * | 2020-08-06 | 2020-11-13 | 重庆橙壹科技有限公司 | Buckle type telescopic puncture tube assembly capable of adapting to different patients |
| CN112472243A (en) * | 2020-12-12 | 2021-03-12 | 常州安康医疗器械有限公司 | Visual puncture outfit with fixing frame |
-
2014
- 2014-02-26 CN CN201420084813.9U patent/CN203710103U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982704A (en) * | 2016-07-05 | 2016-10-05 | 江苏风和医疗器材有限公司 | Seal cartridge and puncture outfit with same |
| CN106618688A (en) * | 2016-12-09 | 2017-05-10 | 成都五义医疗科技有限公司 | Puncture needle containing harmless protector |
| WO2018103571A1 (en) * | 2016-12-09 | 2018-06-14 | 成都五义医疗科技有限公司 | Puncture needle comprising damage-free protection device |
| CN109984816A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109984816B (en) * | 2017-12-31 | 2024-06-04 | 江苏风和医疗器材股份有限公司 | Coreless puncture outfit |
| CN108784803A (en) * | 2018-07-18 | 2018-11-13 | 杭州康基医疗器械股份有限公司 | puncture outfit |
| CN108784803B (en) * | 2018-07-18 | 2024-05-07 | 杭州康基医疗器械有限公司 | Puncture outfit |
| CN109864807A (en) * | 2019-04-04 | 2019-06-11 | 扬州大学附属医院 | A kind of new medical lumbar puncture needle |
| CN111920488A (en) * | 2020-08-06 | 2020-11-13 | 重庆橙壹科技有限公司 | Buckle type telescopic puncture tube assembly capable of adapting to different patients |
| CN112472243A (en) * | 2020-12-12 | 2021-03-12 | 常州安康医疗器械有限公司 | Visual puncture outfit with fixing frame |
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