CN207768431U - A kind of swollen object sting device - Google Patents

Abstract

Disclosed by the utility model is a kind of swollen object sting device, including needle tubing, the front end of needle tubing has piercing needle, needle tubing also has piston, also there is the locating rack coordinated with needle tubing, locating rack includes fixed ring, fixed ring is connected by joint face with locating ring, the end face of locating ring has buffer spring group, it is connected against ring with locating ring by buffer spring group, the end of fixed ring has linking arm, the surface of linking arm has convex portion, also there is needle tubing fixing pipe, needle tubing fixing pipe includes outer tube and inner tube, the outer wall of outer tube has and the matched guide rail of convex portion, cooperation by convex portion and guide rail is main feature.It is easy to operation with reasonable for structure, the features such as preventing syringe needle inserting needle direction from changing.

Description

A kind of swollen object sting device

Technical field

The utility model is related to one kind to puncture for the object that swells, and to acquire the object sample that swells, observes the dress of swell physical property matter and lesion It sets.

Background technology

Swollen object puncture is that the observation lesion situation around physical property matter and swollen object that swells most directly is also the best way, and conventional Puncture is exactly that intramuscular injection needle is inserted into the object that swells, and keeps rotating syringe needle under the premise of inserting needle direction is constant, utilizes falling for syringe needle Next piece of tissue is hooked up, while it is in attraction state to retract needle tubing, pulls out needle；

And in the practical operation of medical staff, due to patient can due to pain and body is subjected to displacement, to keep Inserting needle direction rotates syringe needle while constant, also to retract needle tubing attraction just seems highly difficult, and medical staff is it is difficult to ensure that syringe needle It is not crooked, meanwhile, both hands operate also relatively difficult, once failure, patient bears secondary pain again.

Invention content

The utility model be intended to provide it is a kind of reasonable for structure, it is easy to operation, prevent one kind that syringe needle inserting needle direction changes swollen Object sting device, to overcome the shortcomings of prior art.

The utility model realizes that the technical solution of its purpose is：

There is piercing needle, needle tubing also to have piston, also have for the front end of a kind of swollen object sting device, including needle tubing, needle tubing It includes fixed ring to have the locating rack coordinated with needle tubing, locating rack, and fixed ring is connected by joint face with locating ring, the end of locating ring Face has buffer spring group, is connected against ring with locating ring by buffer spring group, and the end of fixed ring has linking arm, even The surface for connecing arm has convex portion, and it includes outer tube and inner tube also to have needle tubing fixing pipe, needle tubing fixing pipe, the outer wall of outer tube have with The matched guide rail of convex portion, by the cooperation of convex portion and guide rail, needle tubing fixing pipe is slidably connected with linking arm, and inner tube is nested in outer In pipe, there is the inner wall of inner tube needle tubing support, the inner wall of inner tube also to have the screw rod positioned opposite with needle tubing support, nut briquetting and spiral shell Bar assembly connection, by needle tubing support and nut briquetting, the rear end of needle tubing can be fixed in needle tubing fixing pipe, and front end passes through admittedly Determine ring.

The peripheral surface of the outer tube is also associated with hand rest group, hand rest group include with the mutually fixed connecting rod of outer tube, connecting rod End has wrist support.

There is tension spring in wrist support, the end of tension spring has a fixture block, the end of piston have with the matched deck of fixture block, lead to The cooperation of fixture block and deck is crossed, tension spring connects with piston.

The internal diameter A of fixed ring is less than the internal diameter B of locating ring.

With the above structure, the utility model includes needle tubing, and the front end of needle tubing has piercing needle, and needle tubing, which also has, lives Plug also has the locating rack coordinated with needle tubing, and locating rack includes fixed ring, and fixed ring is connected by joint face with locating ring, fixed The end face of position ring has buffer spring group, is connected against ring with locating ring by buffer spring group, and the benefit of this spline structure exists It can be each passed through fixed ring, locating ring when in use in, the front end of needle tubing and piercing needle and against ring, and be aligned It is comparatively just the wearing in patient body and needle tubing in this way against being fitted on patient skin against ring after puncture position A supporting point is increased between pricker head, piercing needle occurs crooked when can avoid puncturing, and due to against ring and positioning There is buffer spring group again between ring, in this way, can either ensure the effect braced against, while appropriately increasing a bit again can For the displacement of operation, such as when practical operation, when needing to adjust needle angle slightly, medical staff can make needle tubing slightly askew When tiltedly, and to a certain extent, locating ring just can be touched against ring, to reach support positioning, avoid needle tubing from continuing crooked Effect.

And there is linking arm, the surface of linking arm to have convex portion for the end of fixed ring, also have needle tubing fixing pipe, needle tubing Fixing pipe includes outer tube and inner tube, the outer wall of outer tube have with the matched guide rail of convex portion, pass through the cooperation of convex portion and guide rail, needle Pipe fixing pipe is slidably connected with linking arm, and inner tube is nested in outer tube, and there is the inner wall of inner tube needle tubing support, the inner wall of inner tube also to have There is a screw rod positioned opposite with needle tubing support, nut briquetting and screw rod assembly connection, by needle tubing support and nut briquetting, after needle tubing End can be fixed in needle tubing fixing pipe, and front end passes through fixed ring, this spline structure to be advantageous in that the rear end of needle tubing is located at needle In pipe fixing pipe, and by the cooperation of needle tubing support treasure nut briquetting, it can realize and be reliably fixed with needle tubing fixing pipe, when having positioned Finish, when needing inserting needle, medical staff only needs to push needle tubing fixing pipe forward, passes through the company between fixed ring and needle tubing fixing pipe Arm is connect, needle tubing fixing pipe can drive needle tubing to advance towards fixed ring, and piercing needle can be pierced into patient body while go back While capable of ensureing to puncture, needle tubing will not occur crooked；And when needing rotation piercing needle, when hook takes tissue, patient only needs Needle tubing rotation is held, needle tubing can drive inner tube rotation and outer tube does not rotate（In actual use, between inner and outer tubes more Ball can be added by adding, and make the structure of similar bearing）.

And the peripheral surface of the outer tube is also associated with hand rest group, hand rest group includes and the mutually fixed connecting rod of outer tube, connecting rod End there is wrist support, in use, the wrist of medical staff can support in wrist support, and the hand of medical staff can directly be held Firmly outer tube or needle tubing, are operated, in this way, not only facilitating gripping, while not being allowed more it is easier that needle tubing generation is crooked.

And there is tension spring in wrist support, the end of tension spring has a fixture block, the end of piston have with the matched deck of fixture block, By the cooperation of fixture block and deck, tension spring connects with piston, and the swollen object in piercing needle piercing patient body needs to attract When, fixture block can be caught in deck by medical staff, directly at the uniform velocity pull piston by tension spring in this way, when piston motion to needs Position when, medical staff transfer to fixture block, in this way, whole operation process medical staff is substantially as long as by a hand It can operate, and another hand can buttress patient or carry out other operation.

And the internal diameter A of fixed ring is less than the internal diameter B of locating ring, the internal diameter of fixed ring only needs to compare slightly in actual use The diameter of needle tubing is big, and needle tubing is allowed to pass through, and the diameter of locating ring can be bigger than fixed ring, can thus increase and patient The contact area of body, is conveniently operated, and the joint face between fixed ring and locating ring can be transparent material, such as medical plastic Material etc. can also facilitate medical staff to observe needle position in this way.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 be the utility model needle tubing support, screw rod, nut briquetting structural schematic diagram；

Fig. 3 is the structural schematic diagram of the utility model wrist support；

Fig. 4 is the structural schematic diagram of the utility model locating rack.

Specific implementation mode

Attached drawing is compareed below, and by the description of specific implementation mode, the utility model is further described.

A kind of typical specific implementation mode,

As shown in Fig. 1 ~ 4, a kind of swollen object sting device, including needle tubing 1, the front end of needle tubing 1 have piercing needle 2, needle tubing 1 Also there is piston 3, it includes fixed ring 5 also to have the locating rack 4 coordinated with needle tubing 1, locating rack 4, and fixed ring 5 passes through joint face 6 It is connected with locating ring 7, the end face of locating ring 7 has buffer spring group 8, passes through buffer spring group 8 and 7 phase of locating ring against ring 9 Even, there is linking arm 10, the surface of linking arm 10 to have convex portion 11, also have needle tubing fixing pipe 12, needle for the end of fixed ring 5 Pipe fixing pipe 12 includes outer tube 13 and inner tube 14, the outer wall of outer tube 13 have with 11 matched guide rail 15 of convex portion, pass through convex portion 11 are slidably connected with the cooperation of guide rail 15, needle tubing fixing pipe 12 with linking arm 10, and inner tube 14 is nested in outer tube 13, inner tube 14 There is inner wall needle tubing support 16, the inner wall of inner tube 14 also to have the screw rod 17 positioned opposite with needle tubing support 16, nut briquetting 18 and spiral shell 17 assembly connection of bar, by needle tubing support 16 and nut briquetting 18, the rear end of needle tubing 1 can be fixed in needle tubing fixing pipe 12, and Front end passes through fixed ring 5.

The peripheral surface of the outer tube 13 is also associated with hand rest group 19, and hand rest group 19 includes and 13 mutually fixed connecting rod of outer tube 20, the end of connecting rod 20 has wrist support 21.

There is tension spring 22, the end of tension spring 22 to have fixture block 23, the end of piston 3 has to match with fixture block 23 in wrist support 21 The deck 24 of conjunction, by the cooperation of fixture block 23 and deck 24, tension spring 22 connects with piston 3.

The internal diameter A of fixed ring 5 is less than the internal diameter B of locating ring 7.

Claims (4)

1. a kind of swollen object sting device, including needle tubing（1）, needle tubing（1）Front end have piercing needle（2）, needle tubing（1）Also have Piston（3）, also have and needle tubing（1）The locating rack of cooperation（4）, it is characterised in that：Locating rack（4）Including fixed ring（5）, fixed Ring（5）Pass through joint face（6）With locating ring（7）It is connected, locating ring（7）End face have buffer spring group（8）, against ring（9） Pass through buffer spring group（8）With locating ring（7）It is connected, fixed ring（5）End have linking arm（10）, linking arm（10）'s Surface has convex portion（11）, also there is needle tubing fixing pipe（12）, needle tubing fixing pipe（12）Including outer tube（13）With inner tube（14）, outside Pipe（13）Outer wall have and convex portion（11）Matched guide rail（15）, pass through convex portion（11）With guide rail（15）Cooperation, needle tubing Fixing pipe（12）With linking arm（10）It is slidably connected, inner tube（14）It is nested in outer tube（13）It is interior, inner tube（14）Inner wall have needle Conduit saddle（16）, inner tube（14）Inner wall also have and needle tubing support（16）Screw rod positioned opposite（17）, nut briquetting（18）With spiral shell Bar（17）Assembly connection passes through needle tubing support（16）With nut briquetting（18）, needle tubing（1）Rear end can be fixed on needle tubing fixing pipe （12）It is interior, and front end passes through fixed ring（5）.

2. a kind of swollen object sting device according to claim 1, it is characterised in that：The outer tube（13）Peripheral surface also It is connected with hand rest group（19）, hand rest group（19）Including with outer tube（13）Mutually fixed connecting rod（20）, connecting rod（20）End have Wrist support（21）.

3. a kind of swollen object sting device according to claim 1 or 2, it is characterised in that：Wrist support（21）It is upper that there is tension spring （22）, tension spring（22）End have fixture block（23）, piston（3）End have and fixture block（23）Matched deck（24）, Pass through fixture block（23）With deck（24）Cooperation, tension spring（22）With piston（3）Connect.

4. a kind of swollen object sting device according to claim 1, it is characterised in that：Fixed ring（5）Internal diameter A be less than positioning Ring（7）Internal diameter B.