CN214805223U

CN214805223U - Puncture needle capable of preventing occupational exposure

Info

Publication number: CN214805223U
Application number: CN202120646246.1U
Authority: CN
Inventors: 张陆贤; 李志�
Original assignee: Nanning Social Welfare Hospital
Current assignee: Nanning Social Welfare Hospital
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-11-23
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a prevent pjncture needle that occupation exposed, including needle cover and nook closing member, needle cover afterbody is equipped with the connecting block, inside logical groove one and the logical groove two that is equipped with mutual intercommunication of connecting block, the inside hollow structure that is of needle cover, hollow structure communicates with each other with leading to groove one, needle cover head still is equipped with and leads to the communicating drainage hole one of hollow structure, works as the needle cover pierces the human back, and in the cerebrospinal fluid flowed into hollow structure from the drainage hole, final cerebrospinal fluid flowed out from leading to groove two, the nook closing member runs through and leads to groove one and movably arranges in hollow structure.

Description

Puncture needle capable of preventing occupational exposure

Technical Field

The utility model belongs to the technical field of medical instrument, specifically a prevent pjncture needle that occupation exposes.

Background

The lumbar puncture makes the clinic indispensable detection and treatment means for diagnosing neurologic diseases, spinal anesthesia, spinal angiography, and cerebrospinal fluid drainage. As shown in figure 1, the pressure measuring needle used in domestic clinical at present comprises a needle sleeve 1 ', a connecting block 3 ' and a needle core 2 ' which are connected to the tail of the needle sleeve 1 ', one end of the needle core 2 ' is a puncturing part, the puncturing part penetrates through the connecting block 3 ' and the inside of the needle sleeve 1 ' and is arranged at the head end of the needle sleeve 1 ', the pressure measuring needle punctures a human body through the needle core, the needle core 2 ' is completely extracted from the needle sleeve 1 ', cerebrospinal fluid flows into the needle sleeve 1 ', then flows out through a channel 4 ' in the connecting block 3 ', the pressure measuring tube and a collector are connected with a through groove 4 ' in the connecting block 3 ', and the spinal fluid of the puncture needle can continuously overflow in the process of connecting the pressure measuring tube and collecting a sample and drips outside, so that the cerebrospinal fluid is excessively lost, and the probability of low intracranial pressure syndromes such as dizziness and headache after operation is increased. In addition, after the needle core 2 'is completely pulled out, operators are easily stabbed when the needle core 2' is inserted backwards after cerebrospinal fluid is collected, occupational exposure is caused, the needle core falls and is polluted due to improper placement, or the needle core stabs to other positions of a patient, so that the next operation is influenced or iatrogenic infection is caused.

Disclosure of Invention

An object of the utility model is to provide a prevent pjncture needle that occupation exposes to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a prevent pjncture needle that occupation exposed, includes needle cover and nook closing member, needle cover afterbody is equipped with the connecting block, inside being equipped with the logical groove one and leading to groove two that communicate each other of connecting block, the inside hollow structure that is of needle cover, hollow structure communicates with each other with leading to groove one, needle cover head still is equipped with the communicating drainage hole one of hollow structure, works as needle cover pierces the human back, and in the cerebrospinal fluid flowed into hollow structure from the drainage hole, final cerebrospinal fluid flowed out from leading to groove two, the nook closing member runs through and leads to groove one movably to be arranged in hollow structure.

Further technical scheme, still be equipped with in the connecting block and hold the chamber, hold the chamber respectively with lead to groove one and lead to groove two and hold the chamber intercommunication, the connecting block side is equipped with and holds the observation window that the chamber corresponds, can see through the observation window and hold the circumstances such as intracavity portion cerebrospinal fluid property, velocity of flow.

According to the technical scheme, a partition plate is arranged in the needle sleeve and divides the inner space of the needle sleeve into a first channel and a second channel, the needle core is inserted from the other end of the first through groove and penetrates through the connecting block to be movably arranged in the first channel, and a second drainage hole communicated with the second channel is formed in the partition plate.

According to a further technical scheme, one end of the needle core is provided with a handle, and one end, far away from the needle sleeve, of the first channel is provided with a groove matched with the handle.

The utility model has the advantages that:

the utility model provides a prevent pjncture needle that occupation exposes need not to dial out the nook closing member completely and can observe whether there is cerebrospinal fluid to flow, return the nook closing member and can seal logical groove two, prevent to be installing pressure-measuring pipe and collector in-process cerebrospinal fluid and can continuously overflow, run off too much and cause postoperative dizziness headache, increase adverse reactions such as bed time, in addition, owing to need not to extract the nook closing member completely, avoid stabbing the operator, cause the occupation to expose, or place improper leading to the fact the nook closing member to be polluted, influence on next step operation or cause the iatrogenic source to infect.

Drawings

FIG. 1: the prior art schematic of the present invention.

FIG. 2: the utility model discloses a perspective view.

FIG. 3: the first main view section of the utility model.

FIG. 4: the main view section of the utility model is II.

FIG. 5: the main view section of the utility model is three.

Detailed Description

The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings,

referring to fig. 2-4 of the drawings,

the utility model provides a prevent pjncture needle that occupation exposes, includes needle cover 1 and nook closing member 2, 1 afterbody of needle cover is equipped with connecting

block

3, 3 inside logical groove one 31 and the logical groove two 32 that communicate each other that are equipped with of connecting block, 1 inside hollow structure 16 that is of needle cover, hollow structure 16 communicates with each other with leading to groove one 31, 1 head of needle cover still is equipped with one 11 of the communicating drainage hole with hollow structure 16, works as after needle cover 1 pierces the human body, the cerebrospinal fluid flows into hollow structure 16 from one 11 of drainage hole in, and final cerebrospinal fluid flows out from leading to groove two 32, nook closing member 2 runs through and leads to groove one 31 movably to be arranged in hollow structure 16.

In the first embodiment of the present invention, the first,

when the puncture needle is used, the puncture part is found accurately, the puncture part is disinfected, the puncture needle is inserted, the puncture needle is made to puncture the spinal canal, then the needle core 2 is slowly pulled out, after the needle core 2 is pulled out for a certain distance, whether cerebrospinal fluid flows out of the second through groove 32 or not is observed, if the puncture depth is enough, the cerebrospinal fluid can enter the needle sleeve 1 from the drainage hole I11 when the needle core 2 is slowly pulled out, when the needle core 2 retreats to the position where the first through groove 31 is communicated with the second through groove 32, the cerebrospinal fluid can flow into the second through groove 32 along the first through groove 31, then the cerebrospinal fluid flows out of the other end of the second through groove 32, the proper puncture depth is confirmed, at the moment, the needle core 2 is pushed to seal the position where the first through groove 31 is communicated with the second through groove 32, and no cerebrospinal fluid flows out of the second through groove 32; a pressure gauge is connected to the position of the second through groove 32 for measuring pressure, after the pressure measurement is finished, the needle core 2 is completely pushed into the needle sleeve 1 to seal the first drainage hole 11, and the pressure measuring pipe is taken down; and then the needle core 2 is pulled out to the position where the closed through groove I31 is communicated with the through groove II 32, the position where the through groove II 32 is located is connected with a container to collect cerebrospinal fluid, after the collection is finished, the needle core 2 is inserted back, and the puncture needle is pulled out.

The utility model discloses a prevent pjncture needle that occupation exposed need not to dial out nook closing member 2 completely and can observe whether there is cerebrospinal fluid to flow out to judge and pierce the degree of depth, return nook closing member 2 and can seal two 32 logical grooves, prevent to be in installation piezometric tube and collection sample in-process cerebrospinal fluid can continuously overflow too much and increase postoperative dizziness headache adverse reaction, in addition, owing to need not to extract nook closing member 2 completely, avoid nook closing member 2 to stab the medical staff finger, cause the occupation to expose, also can reduce the contaminated probability of nook closing member.

Further technical scheme, still be equipped with in the connecting block 3 and hold chamber 33, hold chamber 33 respectively with lead to groove one 31 and lead to groove two 32 and hold chamber 33 intercommunication, connecting block 3 side is equipped with and holds observation window 34 that chamber 33 corresponds, can see through observation window 34 and hold the inside condition in chamber 33.

According to a further technical scheme, a partition plate 12 is arranged in the needle sleeve 1, the partition plate 12 divides the inner space of the needle sleeve 1 into a first channel 13 and a second channel 14, the needle core 2 is inserted from the other end of the first through groove 31, penetrates through the connecting block 3 and can be movably arranged in the first channel 13, and a second drainage hole 15 communicated with the second channel 14 is formed in the partition plate 12.

In the second embodiment of the present invention, the first,

during the use, cerebrospinal fluid is from drainage hole 11 access channel 13, when the certain distance is extracted to nook closing member 2, channel 13 and two 14 two through two 15 intercommunications in drainage hole, cerebrospinal fluid flows into in the channel 13 from drainage hole 11, then from two 15 inflow channel 14 in drainage hole, two 14 flow direction through groove 32 through the channel, at last cerebrospinal fluid flows out from leading to groove two 32 other ends, the distance of extracting of nook closing member 2 that can significantly reduce of this scheme, can effectively fix nook closing member 2, reduce the operation degree of difficulty, avoid stabbing medical staff, lead to the occupation to expose, or nook closing member 2 extracts too much and drops and cause the pollution.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.

Claims

1. A puncture needle capable of preventing occupational exposure is characterized in that: including needle cover (1) and nook closing member (2), needle cover (1) afterbody is equipped with connecting block (3), connecting block (3) inside be equipped with logical groove one (31) and lead to groove two (32) that communicate with each other, needle cover (1) inside is hollow structure (16), hollow structure (16) communicate with each other with leading to groove one (31), needle cover (1) head still is equipped with communicating drainage hole one (11) with hollow structure (16), works as after needle cover (1) pierces the human body, cerebrospinal fluid flows in hollow structure (16) from drainage hole one (11), and final cerebrospinal fluid flows from leading to groove two (32), needle closing member (2) run through and lead to groove one (31) mobile arranging in hollow structure (16).

2. An occupational exposure prevention needle as claimed in claim 1, wherein: still be equipped with in connecting block (3) and hold chamber (33), hold chamber (33) respectively with lead to groove one (31) and lead to groove two (32) and hold chamber (33) intercommunication, connecting block (3) side is equipped with and holds observation window (34) that chamber (33) corresponds, can see through observation window (34) and hold chamber (33) internal conditions.

3. An occupational exposure prevention needle as claimed in claim 2, wherein: the needle sleeve is characterized in that a partition plate (12) is arranged in the needle sleeve (1), the partition plate (12) divides the inner space of the needle sleeve (1) into a first channel (13) and a second channel (14), the needle core (2) is inserted from the other end of the first through groove (31) and penetrates through the connecting block (3) to be movably arranged in the first channel (13), and a second drainage hole (15) communicated with the second channel (14) is formed in the partition plate (12).

4. A vocational exposure resistant introducer needle in accordance with claim 3, wherein: one end of the needle core (2) is provided with a handle (21), and one end of the first channel (13) far away from the needle sleeve (1) is provided with a groove (35) matched with the handle (21).