CN113729882A - Latch-pushing type lumbar puncture device for children - Google Patents

Abstract

Translated fromChinese

本发明公开一种卡齿推进式儿童腰椎穿刺装置，其包括穿刺组件、管件、推动组件，穿刺组件包括穿刺针和针芯，穿刺针呈空心设置，针芯可插拔地设于穿刺针内，管件内开设有供针芯滑动的滑移孔，滑移孔沿管件的长度方向布置，管件具有供穿刺组件移动的连通腔，连通腔开口朝外且与滑移孔连通，穿刺针外设有凸起结构，推动组件具有与凸起结构卡合的驱动凹，推动组件可移动地设于连通腔，借由推动推动组件使得驱动凹驱动凸起结构移动并连动穿刺组件移动。本发明的的卡齿推进式儿童腰椎穿刺装置具有结构简单、成功率高、损伤疼痛小的优点。

The invention discloses a clip-tooth push-type lumbar puncture device for children, which comprises a puncture assembly, a pipe fitting and a push assembly. The puncture assembly includes a puncture needle and a needle core. There is a sliding hole in the tube for the needle core to slide, and the sliding hole is arranged along the length direction of the tube. There is a protruding structure, the pushing component has a driving recess engaging with the protruding structure, the pushing component is movably arranged in the communication cavity, and the driving recess drives the protruding structure to move and moves the puncturing component by pushing the pushing component. The toothed push-type children's lumbar puncture device of the present invention has the advantages of simple structure, high success rate and little injury and pain.

Description

Latch-pushing type lumbar puncture device for children

Technical Field

The invention relates to the field of medical supplies, in particular to a latch-propelled children lumbar puncture device.

Background

Lumbar puncture is a necessary and common examination means for diagnosing nervous system diseases by puncturing and extracting cerebrospinal fluid. The traditional method is that a doctor who needs certain clinical experience holds a lumbar puncture needle by hand, takes 3-4 intervertebral spaces of lumbar vertebrae as puncture points, inserts the needle by a deep needle and a shallow needle according to the experience, finds out breakthrough feeling, extracts a needle core, and sees whether spinal fluid drips out, so as to observe whether a puncture needle enters into the subarachnoid space or not, and if spinal fluid drips out, the puncture is successful.

This method has certain defects that can easily cause puncture failure, such as: the tendon and ligament of some children patients are not good in development, and sometimes, the needle insertion is not free of breakthrough feeling and cannot be successfully punctured; because the human body has multiple layers of tissues, the puncture needs to be performed manually layer by layer until the target layer is punctured and the spinal fluid flows out, so that the puncture is successful only when the spinal fluid outflow condition is observed when each layer is punctured.

In order to solve the above problems, it is necessary to provide a latch-pushing type lumbar puncture device for children.

Disclosure of Invention

The invention aims to provide a latch push type children lumbar puncture device which is high in success rate, simple in structure and small in injury pain.

In order to achieve the purpose, the latch-pushing type children lumbar puncture device provided by the invention comprises a puncture component, a pipe fitting and a pushing component, wherein the puncture component comprises a puncture needle and a needle core, the puncture needle is arranged in a hollow manner, the needle core is arranged in the puncture needle in a pluggable manner, a sliding hole for the needle core to slide is formed in the pipe fitting, the sliding hole is arranged along the length direction of the pipe fitting, the pipe fitting is provided with a communicating cavity for the puncture component to move, the opening of the communicating cavity faces outwards and is communicated with the sliding hole, a protruding structure is arranged outside the puncture needle, the pushing component is provided with a driving recess clamped with the protruding structure, the pushing component is movably arranged in the communicating cavity, and the driving recess drives the protruding structure to move and drives the puncture component to move by pushing the pushing component.

Preferably, the pushing assembly moves in a stepwise manner.

Preferably, the pushing assembly comprises a pushing button, a connecting piece, an elastic piece and a clamping piece, the pushing button is installed on the elastic piece, a clamping tooth arranged along the length direction of the pipe fitting is arranged at an opening of the communicating cavity, the elastic piece is provided with an elastic clamping tooth matched with the clamping tooth, the elastic piece is elastically retracted relative to the communicating cavity when sliding by means of the elasticity of the elastic clamping tooth, the pushing button is installed on the top end face of the elastic piece, one end of the connecting piece is connected to one side of the elastic piece, the other end of the connecting piece is connected with the clamping piece, and the driving recess is arranged on one side, facing the protruding structure, of the clamping piece.

Specifically, the connecting piece is a connecting rod with elasticity.

Specifically, the connecting piece with the flexure strip all sets up to at least two, all the connecting piece is followed the length direction that promotes the button is spaced apart the setting, the flexure strip with the connecting piece one-to-one, protruding structure sets up to at least two, all protruding structure is followed the length direction that promotes the button is spaced apart the setting, protruding structure with the fastener one-to-one.

Specifically, the engaging member is a U-shaped ring structure.

Specifically, the intercommunication chamber includes and slides chamber and narrow chamber, the narrow chamber is located it is close to slide the chamber one side in hole, the cross section in narrow chamber is less than the cross section in chamber slides, promote the button with the flexure strip is located slide the chamber, the connecting piece with the fastener is located the narrow chamber.

Preferably, the sliding hole is a through round hole.

Preferably, the protrusion structure is a ring-shaped protrusion structure disposed around the circumference of the puncture needle.

Preferably, the pipe fitting is a round pipe which is arranged in a transparent mode.

Compared with the prior art, the latch-propelled children lumbar puncture device combines a puncture component, a pipe fitting, a pushing component and the like together, wherein the puncture component comprises a puncture needle and a needle core, the puncture needle is arranged in a hollow manner, the needle core is arranged in the puncture needle in an insertable and removable manner, the puncture needle can gradually puncture tissues, then the needle core is taken out of the puncture needle, whether the puncture position is accurate and whether the puncture is successful or not is judged by observing whether spinal fluid flows out, a sliding hole for the needle core to slide is formed in the pipe fitting, the needle core can be arranged in the sliding hole in a sliding manner so that the needle core can gradually puncture to a target position in a sliding manner, the sliding hole is arranged along the length direction of the pipe fitting, the pipe fitting is provided with a communicating cavity for the puncture component to move, the opening of the communicating cavity faces outwards and is communicated with the sliding hole, the puncture needle is externally provided with a convex structure, and the pushing component is provided with a driving concave clamped with the convex structure, the arrangement of the communicating cavity and the sliding hole can enable the driving concave of the pushing component to form clamping connection with the convex structure of the puncture needle, the pushing component is movably arranged in the communicating cavity, the pushing component enables the driving concave to drive the convex structure to move and drive the puncture component to move, when the needle core and the puncture needle are inserted into the sliding hole, the convex structure of the puncture needle is clamped with the driving concave of the pushing component, so the movement of the pushing component can drive the puncture needle to move, because the sliding hole can guide the puncture needle, an operator can drive the puncture needle to puncture by pushing the pushing component, when the puncture reaches a certain position, the puncture position is judged whether to be in place or not and the puncture success or not is judged by observing whether ridge liquid of each layer of tissue flows out, because the pushing component moves to drive the puncture needle to push by a fixed tooth lattice, and one tooth lattice can be smaller than or equal to the diameter of a subarachnoid cavity, the puncture needle is not easy to penetrate through the subarachnoid space so as to achieve successful puncture easily, the phenomenon that the puncture fails due to over-forceful puncture of hands and deflection of the puncture needle is avoided, the operation is convenient, the success rate of puncture is greatly improved, the structure is simple, the cleaning or disinfection recycling is convenient, the safety and the stability are realized, and the pain of a patient can be relieved.

Drawings

Fig. 1 is a schematic plan view of the latch-propelled children lumbar puncture device of the present invention in a side view.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic plan view of the latch-propelled children lumbar puncture device of the present invention after hiding the puncture assembly and in the top view.

Fig. 4 is a schematic structural view of a puncture assembly in the latch-pushing type children lumbar puncture device of the invention.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 4, a specific structure of a latch-pushing typelumbar puncture device 100 for children of the present invention is shown, which includes a puncture assembly 1, atube 2 and apushing assembly 3, wherein the puncture assembly 1 includes apuncture needle 11 and aneedle core 12, thepuncture needle 11 is hollow, theneedle core 12 is disposed in thepuncture needle 11 in a pluggable manner, thepuncture needle 11 can gradually puncture the tissue, then theneedle core 12 is taken out from thepuncture needle 11, whether the puncture position is accurate and whether the puncture is successful or not is judged by observing whether spinal fluid flows out, asliding hole 21 for sliding theneedle core 12 is disposed in thetube 2, theneedle core 12 can be slidably disposed in thesliding hole 21 so that theneedle core 12 can gradually slide to the puncture target position, thesliding hole 21 is disposed along the length direction of thetube 2, thetube 2 has a communicatingcavity 22 for moving the puncture assembly 1, the communicatingcavity 22 opens outwards and communicates with thesliding hole 21, the outside of thepuncture needle 11 is provided with aconvex structure 111, the pushingcomponent 3 is provided with a driving concave 311 clamped with theconvex structure 111, the arrangement of the communicatingcavity 22 and thesliding hole 21 can enable the driving concave 311 of the pushingcomponent 3 to be clamped and connected with theconvex structure 111 of thepuncture needle 11, the pushingcomponent 3 is movably arranged in the communicatingcavity 22, the driving concave 311 drives theconvex structure 111 to move and drive the puncture component 1 to move by pushing the pushingcomponent 3, when theneedle core 12 and thepuncture needle 11 are inserted into thesliding hole 21, theconvex structure 111 of thepuncture needle 11 is clamped with the driving concave 311 of the pushingcomponent 3, so the movement of the pushingcomponent 3 can drive thepuncture needle 11 to move, as thesliding hole 21 can form a guiding effect on thepuncture needle 11, an operator can drive thepuncture needle 11 to puncture by pushing the pushingcomponent 3, and judge whether the puncture position is in place and whether the puncture is successful or not by observing whether each layer of tissue ridge liquid flows out or not when puncturing to a certain position, because the pushingcomponent 3 is a fixed tooth grid moving and driving thepuncture needle 11 to advance, and a tooth grid can be smaller than or equal to the diameter of the lower cavity of the arachnoid, thepuncture needle 11 is not easy to penetrate the lower cavity of the arachnoid and is easy to achieve the successful puncture, the phenomena that the traditional manual puncture is too forceful and thepuncture needle 11 is deviated to cause puncture failure are avoided, the operation is convenient, the success rate of puncture is greatly improved, the structure is simple, the cleaning or the disinfection recycling is convenient, the safety and the stability are realized, and the pain of a patient can be relieved. More specifically, the following:

referring to fig. 1 to 3, the pushingassembly 3 moves step by step, and the step by step movement enables the caregiver to puncture the layers of the tissue step by step, so that the caregiver can puncture the tissue step by step more stably and accurately, thereby satisfying the puncture requirement. Specifically, the pushingassembly 3 includes a pushingbutton 32, a connectingmember 33, anelastic sheet 34 and alocking member 31, the pushingbutton 32 is mounted on theelastic sheet 34, alocking tooth 35 is disposed at the opening of the communicatingchamber 22 along the length direction of thepipe 2, theelastic sheet 34 has anelastic locking tooth 341 engaged with thelocking tooth 35, theelastic locking tooth 341 elastically retracts when theelastic sheet 34 slides relative to the communicatingchamber 22, when theelastic piece 34 moves to the right position or stops relative to thecommunication cavity 22, theelastic latch 341 is latched with thelatch 35 under the action of elastic recovery, therefore, the pushingassembly 3 is locked in position without external force, the pushingbutton 32 is mounted on the top end surface of theelastic sheet 34, one end of the connectingmember 33 is connected to one side of theelastic sheet 34, the other end of the connectingmember 33 is connected to theengaging member 31, and thedriving recess 311 is opened on one side of theengaging member 31 facing theprotruding structure 111. Preferably, theengaging member 31 is a U-shaped ring structure, but not limited thereto. It will be appreciated that the advancingassembly 3 can advance thepuncture needle 11 in a stepwise manner forward or retract it in a stepwise manner backward.

Referring to fig. 1 to 2, further, the connectingelement 33 is a connecting rod with elasticity, and it can be understood that the connecting rod is a slightly elastic connecting rod, i.e. has slight elasticity without affecting its pushing effect, the slight elasticity can enable thedriving recess 311 to interfere with theprotrusion structure 111 when thepuncture needle 11 enters thesliding hole 21 under the action of external force, but the slight elasticity is just utilized to enable thedriving recess 311 and theprotrusion structure 111 to keep being engaged under the action of external force.

Referring to fig. 1 to 2, the number of the connectingmembers 33 and the number of theelastic sheets 34 are at least two, all the connectingmembers 33 are spaced apart along the length direction of thepush button 32, theelastic sheets 34 are in one-to-one correspondence with the connectingmembers 33, the number of theprotruding structures 111 is at least two, all theprotruding structures 111 are spaced apart along the length direction of thepush button 32, and theprotruding structures 111 are in one-to-one correspondence with theengaging members 31, so that the pushing stability can be improved. The pushingassembly 3 is arranged on one side of the needle point close to thepuncture needle 11, that is, theconvex structure 111 and the driving concave 311 are both located on one side close to the needle point of thepuncture needle 11, so that the pushing force is concentrated on one side close to the needle point of thepuncture needle 11, and thus, not only can a guiding effect be formed, but also the accuracy and stability of puncture can be improved.

Referring to fig. 3, the communicatingchamber 22 includes asliding chamber 221 and anarrow chamber 222, thenarrow chamber 222 is located on one side of thesliding chamber 221 close to thesliding hole 21, the cross section of thenarrow chamber 222 is smaller than that of thesliding chamber 221, thepush button 32 and theelastic sheet 34 are located in thesliding chamber 221, and the connectingmember 33 and theengaging member 31 are located in thenarrow chamber 222. The mutual matching arrangement of thesliding cavity 221 and thenarrow cavity 222 can enable the slidingcavity 221 to provide thesliding hole 21 for pushing thebutton 32, and thenarrow cavity 222 can minimize the exposed part of thesliding cavity 221. Preferably, thesliding hole 21 is a through circular hole, and theprotruding structure 111 is a ring-shaped protruding structure 111 disposed around the circumference of thepuncture needle 11, so as to avoid interference of movement. Thepipe fitting 2 is a round pipe which is arranged in a transparent mode, so that medical staff can better observe the liquid outlet condition of spinal fluid.

In summary, referring to fig. 1 to 4, a detailed description will be made of the operation process of the latch-pushing type childrenlumbar puncture device 100 of the present invention:

when in use, the aseptic requirement is firstly sterilized, after the surface anesthesia is carried out on the puncture point, theneedle core 12 is sleeved in the hollow hole of thepuncture needle 11, no gap exists between theneedle core 12 and thepuncture needle 11, thepuncture needle 11 extends into thesliding hole 21, when theconvex structure 111 slides to thedriving recess 311, the connectingpiece 33 generates elastic deformation to allow thepuncture needle 11 to continue sliding, when theconvex structure 111 slides to thedriving recess 311, theconvex structure 111 is clamped with thedriving recess 311, the head end of theneedle core 12 is aligned with the puncture point, the skin of the puncture part is fixed by one hand, the latch push type children puncture device of the invention is held by one hand, the needle is slowly inserted along the direction vertical to the spinal column plane of the sick child, specifically, thepush button 32 is pushed, thepush button 32 moves to drive the connectingpiece 33 and the driving recess 311 to move, theelastic piece 34 generates elastic retraction when sliding relative to the communicatingcavity 22 by the elasticity of theelastic latch 341, because theprotruding structure 111 is engaged with thedriving recess 311, theprotruding structure 111 is pushed forward step by step under the interlocking action to make thepuncture needle 11 and thestylet 12 gradually penetrate into each layer of tissue, when theelastic sheet 34 moves to the right position or stops relative to the communicatingcavity 22, theelastic latch 341 is engaged with theengaging tooth 35 under the action of elastic recovery, so that thepushing assembly 3 realizes position locking under the state without external force, in the process of puncturing each layer of tissue, namely when puncturing to different depths, the caregiver pulls out thestylet 12 from thepuncture needle 11, when seeing that the spinal fluid flows out, the puncturing is successful, the spinal fluid does not flow out, and the puncturing is performed deep again until the spinal fluid flows out. After the operation is finished, the pushingassembly 3 drives thepuncture needle 11 to retreat thepuncture needle 11 step by step backwards, thepipe fitting 2 is moved away, and the binding is finished.

By combining the puncture component 1, the pipe fitting 2, the pushingcomponent 3 and the like together, the puncture component 1 comprises apuncture needle 11 and aneedle core 12, thepuncture needle 11 is arranged in a hollow manner, theneedle core 12 can be arranged in thepuncture needle 11 in an insertion manner, thepuncture needle 11 can puncture tissues step by step, then theneedle core 12 is taken out of thepuncture needle 11, whether the puncture position is accurate or not and whether the puncture is successful or not are judged by observing whether spinal fluid flows out or not, asliding hole 21 for theneedle core 12 to slide is arranged in the pipe fitting 2, theneedle core 12 can be arranged in thesliding hole 21 in a sliding manner so that theneedle core 12 can puncture to a target position step by step in a sliding manner, thesliding hole 21 is arranged along the length direction of thepipe fitting 2, thepipe fitting 2 is provided with a communicatingcavity 22 for the puncture component 1 to move, the communicatingcavity 22 is opened outwards and is communicated with thesliding hole 21, aconvex structure 111 is arranged outside thepuncture needle 11, the pushingcomponent 3 is provided with a driving concave 311 clamped with theconvex structure 111, the communicatingcavity 22 and thesliding hole 21 are arranged to enable thedriving recess 311 of the pushingcomponent 3 to form a clamping connection with theprotruding structure 111 of thepuncture needle 11, the pushingcomponent 3 is movably arranged in the communicatingcavity 22, the pushingcomponent 3 is pushed to enable thedriving recess 311 to drive theprotruding structure 111 to move and drive the puncture component 1 to move, when theneedle core 12 and thepuncture needle 11 are inserted into thesliding hole 21, theprotruding structure 111 of thepuncture needle 11 is clamped with thedriving recess 311 of the pushingcomponent 3, so that the movement of the pushingcomponent 3 can drive thepuncture needle 11 to move, because thesliding hole 21 can form a guiding function on thepuncture needle 11, an operator can drive thepuncture needle 11 to puncture by pushing the pushingcomponent 3, and when the puncture reaches a certain position, whether the puncture position is in place or not and whether the puncture is successful or not can be judged by observing whether the spinal fluid of each layer of tissue flows out or not, because the pushingcomponent 3 is a fixed tooth lattice to move and drive thepuncture needle 11 to push, and a tooth check can be less than or equal to the diameter of the subarachnoid cavity, so that thepuncture needle 11 is not easy to penetrate the subarachnoid cavity to achieve successful puncture, the phenomenon that the traditional manual puncture is too forceful to puncture and thepuncture needle 11 is deflected to cause puncture failure is avoided, the operation is convenient, the success rate of puncture is greatly improved, the structure is simple, the cleaning or the disinfection recycling is convenient, the safety and the stability are realized, and the pain of a patient can be relieved.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.

Claims (10)

1. The utility model provides a latch impulse type children lumbar puncture device, a serial communication port, including puncture subassembly, pipe fitting and promotion subassembly, puncture subassembly includes pjncture needle and nook closing member, the pjncture needle is hollow setting, the nook closing member is located with pluging in the pjncture needle, seted up the confession in the pipe fitting the gliding hole of sliding of nook closing member, the hole of sliding is followed the length direction of pipe fitting arranges, the pipe fitting has the confession the intercommunication chamber that puncture subassembly removed, intercommunication chamber opening outwards and with the hole intercommunication of sliding, the pjncture needle is equipped with protruding structure outward, promote the subassembly have with the drive of protruding structure block is concave, it is movably located to promote the subassembly the intercommunication chamber, borrow by promoting the subassembly makes the drive is concave the drive protruding structure removes and moves puncture subassembly removes.

2. The latch-propelled child lumbar puncture device of claim 1 wherein said pusher assembly is moved in steps.

3. The latch-propelled children lumbar puncture device according to claim 1, wherein the pushing assembly comprises a pushing button, a connecting member, an elastic sheet, and a latch member, the pushing button is mounted on the elastic sheet, the opening of the communicating chamber is provided with a latch tooth disposed along the length direction of the pipe member, the elastic sheet has an elastic latch tooth engaged with the latch tooth, the elastic latch tooth elastically retracts when the elastic sheet slides relative to the communicating chamber, the pushing button is mounted on the top end surface of the elastic sheet, one end of the connecting member is connected to one side of the elastic sheet, the other end of the connecting member is connected to the latch member, and the driving recess is disposed on one side of the latch member facing the protruding structure.

4. The latch-propelled child lumbar puncture device of claim 3 wherein said connector is a flexible connecting rod.

5. The latch-propelled children's lumbar puncture device of claim 3 wherein said connectors and said resilient tabs are each provided in at least two, all of said connectors are spaced apart along the length of said push button, said resilient tabs are in one-to-one correspondence with said connectors, said protruding structures are provided in at least two, all of said protruding structures are spaced apart along the length of said push button, and said protruding structures are in one-to-one correspondence with said engaging members.

6. The latch-propelled children's lumbar puncture device of claim 3 wherein said latch is a U-shaped loop.

7. The latch-propelled children lumbar puncture device according to claim 3, wherein the communication chamber comprises a sliding chamber and a narrow chamber, the narrow chamber is located on a side of the sliding chamber close to the sliding hole, the cross section of the narrow chamber is smaller than that of the sliding chamber, the push button and the elastic sheet are located in the sliding chamber, and the connecting member and the engaging member are located in the narrow chamber.

8. The latch-propelled child lumbar puncture device of claim 1 wherein said glide aperture is a circular aperture therethrough.

9. The latch-propelled child lumbar puncture device of claim 1, wherein said projection structure is a ring-like projection structure disposed around the circumference of said puncture needle.

10. The latch-propelled children's lumbar puncture device of claim 1, wherein the tube is a transparent tube.

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