Utility model content
In view of the deficienciess of the prior art, small the purpose of this utility model is to provide a kind of pair of injury of human and can receiveCollect hematology's marrow puncture needle of high-purity marrow.
To achieve the above object, the utility model provides following technical solution: a kind of hematology's marrow puncture needle, includingThere is puncture needle tubing, described one end for puncturing needle tubing is arranged with handle, and the other end for puncturing needle tubing is connected with syringe needle, the puncture needleIt manages and is provided with pin hole on the side wall of syringe needle, the pin hole is connected to the inner cavity for puncturing needle tubing, and the puncture needle tubing is close to handReservoir is provided on the side wall of handle, the reservoir is connected to the inner cavity for puncturing needle tubing, is equipped at the top of the reservoirNegative pressure gasbag, the negative pressure gasbag are connected to reservoir, are connected with fixator, the fixator on the outer wall for puncturing needle tubingEnd be connected with adsorbent, the fixator includes positioning ring and registration arm, and the internal ring wall slip of the positioning ring connectsIt is connected to shield, the shield, which is sheathed on, to be punctured outside needle tubing, and the registration arm is set on the ring wall of positioning ring and connects with adsorbentIt connects, the shield includes fixing pipe and several deformation items, and the fixing pipe is connect by screw thread with needle tubing is punctured, Ruo GangenThe deformation item is connected along the axially extending and end face with fixing pipe of needle tubing is punctured, under original state, the side of adjacent deformation itemSide is bonded and forms a deformation tube along the end face of fixing pipe, and the diameter of the deformation tube is less than or equal to the straight of syringe needle end faceDiameter, the other end of several deformation items and the end face of syringe needle are inconsistent, and several deformation items are towards the face for puncturing needle tubingsThe intracavity diameter of inclined surface, the deformation tube is gradually reduced from fixing pipe to the extending direction of syringe needle, on the puncture needle tubingBoss is additionally provided on outer wall, the boss and inclined surface are inconsistent, when puncture needle tubing is rotated relative to fixed pipe, puncture needle tubingIt is moved axially along fixing pipe, boss is inconsistent with inclined surface and relative tilt face is slided, so that shape occurs for several deformation itemsBecome, several deformation items and the inconsistent one end of syringe needle with the end surface dislocation of syringe needle.
The boss includes raised line and turntable as a further improvement of the utility model, and the raised line is along turntableAxial direction is set on the side wall of turntable, and the turntable is rotatably connected with needle tubing is punctured, and is set on the inner wall of the fixing pipeIt is equipped with sliding slot compatible with raised line, several deformation items are divided into the first deformation item and the second deformation item, first shapeThe diameter for becoming the circumference where item is equal to the end face diameter of syringe needle, and the inclined surface is set on the first deformation item, the raised lineIt is correspondingly arranged with the first deformation item and inconsistent with inclined surface, by raised line along the chute to syringe needle movement and raised line and inclined surface phaseTo sliding so that the first deformation item deformation occurs, the second deformation item is kept intact.
The raised line is several and corresponding with several first deformation items sets as a further improvement of the utility model,It sets, a second deformation item is at least separated by between several first deformation items.
Several first deformation items are equal along the circumferencial direction of deformation tube as a further improvement of the utility model,Cloth.
The raised line and the inconsistent one end in inclined surface are cambered surface as a further improvement of the utility model,.
The first deformation item and the inconsistent one end in syringe needle end face are circular arc as a further improvement of the utility model,Face.
Locating slot, the locating slot are provided on the inner wall of the positioning ring as a further improvement of the utility model,Along puncturing, needle tubing is axially extending, and positioning strip compatible with locating slot is provided on the outer wall of the fixing pipe.
Ball groove is provided on the adsorbent as a further improvement of the utility model, on the end of the registration armIt is provided with sphere, the spherical part is connected in ball groove.
Silica gel is provided on the bottom surface of the adsorbent as a further improvement of the utility model,.
The beneficial effects of the utility model improve in the existing patent application No. is CN201610682531.2,Shield is set puncturing needle tubing peripheral hardware, is separated from each other when being pierced into human body with tissue so that puncturing needle tubing, pin hole hook is avoidedTissue is fasten or scratched, safety is improved；Avoiding human body others tissue fluid enters puncture needle by pin hole simultaneouslySubsequent acquisition is influenced in pipe to the purity of marrow, improves the purity for collecting marrow, improves the accuracy of medicine detection,Accurate judgement is made to the state of an illness of patient.
Specific embodiment
The utility model is described in further detail below in conjunction with embodiment given by attached drawing.
Referring to figs. 1 to shown in Fig. 5, a kind of hematology's marrow puncture needle of the present embodiment includes to puncture needle tubing 1, puncturesOne end of needle tubing 1 is arranged with handle 2, and handle 2 is fixedly connected with needle tubing 1 is punctured, and the other end for puncturing needle tubing 1 is connected with syringe needle 3,It punctures needle tubing 1 and is provided with pin hole 12 on the side wall of syringe needle 3, pin hole 12 is connected to the inner cavity for puncturing needle tubing 1, punctures needle tubing 1Reservoir 5 is provided on the side wall of handle 2, reservoir 5 is connected to the inner cavity for puncturing needle tubing 1, the top installation of reservoir 5There is negative pressure gasbag 6, the working principle of negative pressure gasbag 6 only can be outwardly vented when being squeezed, and when release, be extracted in reservoir 5Air；Negative pressure gasbag 6 is connected to reservoir 5, in the prior art, has been connected through a screw thread fixation on the outer wall for puncturing needle tubing 1Device 7, the end of fixator 7 are connected with adsorbent 8, puncture and are respectively marked with scale on needle tubing 1 and reservoir 5, in the mistake of acquisition marrowCheng Zhong, doctor are punctured the depth that needle tubing 1 is inserted into skin by micro-judgment, hold handle 2 of stopping for one and make handle 2 fixed, i.e.,It is static to puncture needle tubing 1, another hand is held fixator 7 and rotated relative to needle tubing 1 is punctured, and punctures needle tubing 1 as screw thread is relatively fixedDevice 7 adjusts the length for being inserted into patient body, and observation fixator 7 shelters from the scale and adjustable fixer 7 punctured on needle tubing 1In place, release fixator 7 is held to stop handle 2 and syringe needle 3 is directed at position for one and is inserted into skin, until syringe needle 3 and backboneWhen bone is mutually close or inconsistent, adsorbent 8 fits with the skin at backbone, and fixator 7 is fixed, punctures needle tubing 1Puncture direction it is consistent with the centerline direction of fixator 7, hold fixator 7 on the other hand and be allowed to stationary, another hand rotationHandle 2 make puncture needle tubing 1 rotate relative to fixed device 7, puncture needle tubing 1 with screw thread to bone move, syringe needle 3 puncture bone intoEntering in bone, pin hole 12 is located inside bone, declined by squeezing and releasing the air pressure that negative pressure gasbag 6 to puncture in needle tubing 1,Marrow is successively entered by pin hole 12 to be punctured in needle tubing 1 and reservoir 6, is observed the corresponding scale of marrow in reservoir 6, is collectedThe marrow amount of demand, the subsequent needle tubing 1 that will puncture extract human body out, terminate bone marrow collection；
As shown in figure 1, fixator 7 includes positioning ring 71 and registration arm 72, and the internal ring wall of positioning ring 71 can be slidedShifting is connected with shield 4, and shield 4, which is sheathed on, to be punctured outside needle tubing 1, and registration arm 72 is set on the ring wall of positioning ring 71 and and adsorbent8 connections, syringe needle 3 are greater than the diameter for puncturing needle tubing 1 with the diameter for puncturing the end face that needle tubing 1 is connect, and shield 4 includes fixing pipe 42With several deformation items 41, fixing pipe 42 is connect by screw thread with needle tubing 1 is punctured, and several deformation items 41 are along puncture 1 axis of needle tubingTo extending and being connected with the end face of fixing pipe 42, under original state, the side of adjacent deformation item 41 is bonded and along fixing pipe42 end face forms a deformation tube 43, and the diameter of deformation tube 43 is less than or equal to the diameter of 3 end face of syringe needle, several deformation items 41The other end and syringe needle 3 end face it is inconsistent, several deformation items 41 towards puncture needle tubing 1 face be inclined surface 44, deformation tube43 intracavity diameter is gradually reduced from fixing pipe 42 to the extending direction of syringe needle 3, is additionally provided on the outer wall on puncture needle tubing 1 convexPlatform 11, boss 11 and inclined surface 44 are inconsistent, during manufacturing, will puncture needle tubing 1 and are designed to first axle and the second axisIt is concentric to be formed by connecting, first axle and the second axis connects with the internal cavities, diameter of the diameter less than the second axis of first axle, first axleIt is connect with syringe needle 3, boss 11 is fixedly connected or is rotatably connected in first axle, and the overall size of boss 11 is less than the second axisThe overall size in section, the second axis are connect with handle 2, and fixing pipe 42 is connect with the second axle thread；Shield 4 is by a root canal to hemisectionIt opens, and cuts a distance along 4 extending direction of shield by end face close to one end of syringe needle 3 in shield 4, choose on 4 end face of shieldThe cutting of multiple positions after, form several deformation items 41, deformation item 41 is made of the preferable material of elastic deformation, is not cutThe part cut is fixing pipe 42, is cut into inclined surface 44 in deformation item 41, is provided on the inner tubal wall of fixing pipe 42 and secondConvex block is arranged on the outer wall of fixing pipe 42 in the screw thread of axis connection, is provided on the internal ring wall of positioning ring 71 for the recessed of convex block slidingSlot, fixing pipe 42 move and relative positioning ring 71 is moved axially with convex block along groove, i.e., 4 relative positioning ring of shield 71 is axial movesIt is dynamic, shield 4 will not relative positioning ring 71 rotate, it is mutual from the two sides for puncturing needle tubing 1 respectively by the shield 4 that will be cut into two halvesSplit simultaneously welds together, then rotates puncture needle tubing 1 relative to fixed pipe 42 and to puncture needle tubing 1 and the threaded connection of fixing pipe 42,So the opposite needle tubing 1 that punctures of shield 4 is fixed；In use, shield 4 is passed through into positioning ring 71, holds fixation simultaneously with handDevice 7 and needle tubing 1 is punctured, the alignment of syringe needle 3 is needed into the position that punctures, unclamp fixator 7 and adjust positioning ring 71 and is axial along shield 4Mobile, up to adsorbent 8 and skin attachement and after can not moving, user holds fixator 7, the pressing of another hand with a handHandle 2 makes syringe needle 3 be pierced into skin, when syringe needle 3 and bone are inconsistent, presses the hand rotational handle 2 of handle 2, shield 4 and positioningRing 71 is opposing stationary, then punctures the rotation of 1 shield vis 4 of needle tubing, for shield 4 because being fixedly clamped by skin, shield 4 is stationary, wearsPricker pipe 1 is moved axially along shield 4, and syringe needle 3, which bores, to open seam head and protrude into inside bone, and boss 11 and inclined surface 44 are inconsistent concurrentRaw sliding, boss 11 pushes deformation item 41, and deformation occurs, several deformation items 41 using puncture the axle center of needle tubing 1 as the center of circle aroundExpansion, several deformation items 41 and the inconsistent one end of syringe needle 3 are mobile to the end face outer ring of syringe needle 3, i.e. several deformation itemsEnd surface dislocation of 41 one end with syringe needle 3, with pressing and rotational handle 2, the depth that syringe needle 3 protrudes into bone increases, shield 4Also with needle tubing 1 is punctured further towards bone, until one end of deformation item 41 and the outer surface of bone offset, shield 4 stops movingDynamic, 4 relative positioning ring 71 of shield no longer moves, and punctures needle tubing 1 and continues to protrude into bone, pin hole 12 enters inside bone, then squeezesNegative pressure gasbag 6 is pressed, needle tubing 1 is punctured so that marrow is entered by pin hole 12 and reaches storage in reservoir 5, it is inverse after extractionIt to rotational handle 2, is retracted into shield 4 so that puncturing needle tubing 1,11 relative tilt face 44 of boss sliding, several deformation items 41 existIt is squeezed by tissue and natural resiliency ability restores rapidly deformation, the equal retracting needle 3 in one end of several deformation items 41End face in, puncture needle is extracted outside human body, terminates acquisition, the design of shield 4 will puncture needle tubing 1 and human body inner tissue mutually everyFrom so that other tissue fluid of human body will not improve the marrow purity of acquisition, also keep away by pin hole 12 into puncturing in needle tubing 1Exempt from pin hole 12 and sketched the contours or scratch inside of human body tissue, improves safety；The diameter of deformation tube 43 is less than or equal to the end of syringe needle 3Face diameter is compared to directly by the diameter design of deformation tube 43 at the end face diameter for being greater than syringe needle 3, when syringe needle 3 is inserted into human body, shieldCover 4 can more smoothly enter human body, small to human epidermal damage, cause the hole diameter punctured small, alleviate the pain of patientIt is bitter；Several deformation items 41 are strutted and are contradicted with bone, are improved the stability of shield 4, are further improved puncture positionAccuracy.
As a kind of improved specific embodiment, referring to figs. 1 to 4, boss 11 includes raised line 13 and turntable14, along the side wall that the axial direction of turntable 14 is set to turntable 14, turntable 14 is rotatably connected raised line 13 with needle tubing 1 is punctured,Disk is set on the outer wall for puncturing needle tubing 1, the circular disk cavity to match with disk is offered inside turntable 14, turntable 14 is divided half-and-halfAt two parts, by the way that in the two sides split for puncturing needle tubing 1, disk is dissolved in circular disk cavity, turntable 14, which is connected to, to be punctured on needle tubing 1；Sliding slot 15 compatible with raised line 13 is provided on the inner wall of fixing pipe 42, several deformation items 41 divide for 49 He of the first deformation itemSecond deformation item 40, the diameter of the circumference where the first deformation item 49 are equal to the end face diameter of syringe needle 3, are designed so that deformationOne end of item 41 can as early as possible with syringe needle 3 end surface dislocation, strutting for deformation item 41 be high-efficient；Inclined surface 44 is set to the first shapeBecome on item 49, raised line 13 is correspondingly arranged and inconsistent with inclined surface 44 with the first deformation item 49, by raised line 13 along the chute 15 toSyringe needle 3 is mobile and the opposite sliding of raised line 13 and inclined surface 44 so that the first deformation item 49 deformation occurs, the second deformation item 40 is keptAs former state, it is designed in this way and is strutted compared to deformation item 41, reduce the void count between deformation item 41, to reduce other groupsIt knits liquid and successively passes through gap and pin hole and flow into the amount punctured in needle tubing 1, improve the purity for collecting marrow.
As a kind of improved specific embodiment, referring to shown in Fig. 3 to Fig. 4, if several first deformation items 49 areIt is disposed adjacent, after several first deformation items 49 strut, the gap between adjacent first deformation item 49 is big, other tissue liquid streamsIt is big to enter amount, in order to solve this problem, raised line 13 is several and is correspondingly arranged with several first deformation items 49, several firstAt least it is separated by a second deformation item 40 between deformation item 49, it is rear with adjacent the is designed so that the first deformation article 49 strutsThe gap of formation between two deformation items 40 is small, and the flow that other tissue fluid penetrate into shield 4 is small, and it is pure to improve the marrow being collected intoDegree；In design process, if the thickness of shield 4 is enough, the side after the first deformation article 49 struts remains unchanged and adjacent theThe side of two deformation items 40 is bonded, and be can avoid other tissue fluid and is protruded into shield 4, further increases the marrow purity being collected into.
As a kind of improved specific embodiment, referring to shown in Fig. 3 to Fig. 4, several first deformation items 49 are along deformationThe circumferencial direction of pipe 43 is uniformly distributed, and after being designed so that shield 4 and bone are inconsistent, shield 4 can be uniform to the pressure of boneThe phenomenon that spreading out, avoiding bone unbalance stress that patient is caused not feel good, while being also a kind of protection to bone.
As a kind of improved specific embodiment, referring to figs. 1 to shown in Fig. 2, raised line 13 and inclined surface 44 are inconsistentOne end is cambered surface 45, is designed so that the resistance between raised line 13 and inclined surface 44 with respect to sliding is small, rotates convenient for userHandle 2；The degree of wear mutual with inclined surface 44 of raised line 13 is small simultaneously, improves the use longevity of raised line 13 and inclined surface 44Life.
As a kind of improved specific embodiment, referring to figs. 1 to shown in Fig. 2, the first deformation item 49 and 3 end face phase of syringe needleOne end of conflict is arc surface 46, is designed in this way and alleviates the first deformation item 49 when strutting to the injury of tissue, simultaneouslyThe damage of first deformation item, 49 opposite bone surface sliding can also reduce, and improve the protection to tissue and bone, mitigatePatient's does not accommodate feeling of pain.
As a kind of improved specific embodiment, referring to Fig.1, shown in Fig. 2 and Fig. 5, during manufacturing, because of fixationThe thickness of pipe 42 is small, i.e., locating slot 74 is provided on the inner wall of positioning ring 71, and locating slot 74 is axially extending along needle tubing 1 is punctured,Be provided with positioning strip 75 compatible with locating slot 74 on the outer wall of fixing pipe 42, the length of positioning strip 75 should control with syringe needle3 puncture into inside bone depth it is consistent, it is unsuitable too long, avoid positioning strip 75 from entering human body, mitigate the damage to human body woundDegree mitigates patient pain；Positioning strip 75 and locating slot 74 are used cooperatively, and it is mobile to be conducive to 4 relative positioning ring 71 of shield, simultaneouslyThe rotation of 4 relative positioning ring 71 of shield is also limited, is conducive to user and operates.
As a kind of improved specific embodiment, referring to Fig.1, shown in Fig. 2 and Fig. 5, because human skin is not smooth, instituteTo be provided with ball groove 81 on adsorbent 8, sphere 73 is provided on the end of registration arm 72,73 part of sphere is connected in ball groove 81It is interior, one end rotation of 8 energy relative positioning arm 72 of adsorbent is designed so that, to change 8 relative positioning arm 72 of adsorbentAngle, in use process, adsorbent 8 can improve the attachment between adsorbent 8 and skin with the skin attachement of different anglePower, the accuracy that the stability and syringe needle 3 for improving fixator 7 puncture.
Silica gel is provided on the bottom surface of adsorbent 8 referring to figs. 1 to shown in Fig. 2 as a kind of improved specific embodiment82, silica gel 82 is small and big with human skin frictional force to human skin stimulation, further increases between adsorbent 8 and skinStability.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely toAbove-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer toOut, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement andRetouching, these improvements and modifications also should be regarded as the protection scope of the utility model.