CN211156143U

CN211156143U - Puncture needle special for pediatrics

Info

Publication number: CN211156143U
Application number: CN201922019217.8U
Authority: CN
Inventors: 余贵发; 熊芸芸; 李文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-04
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a special pjncture needle of paediatrics relates to medical instrument technical field. The needle tube comprises a needle tube which is vertically arranged, wherein the outer surface of the needle tube is provided with main scale marks; the lower end of the needle tube is arc-shaped and is uniformly provided with a plurality of suction holes; the upper end of the needle tube is fixedly communicated with a connector through a corrugated conduit; the upper end of the outer wall of the needle tube is fixedly sleeved with an annular push plate; the needle tube positioning device is arranged on the push plate; the lower part of the outer wall of the needle tube is sleeved with a mounting plate in a sliding way; the lower end of the mounting plate is provided with a placing groove; a needle head is fixed in the middle of the placing groove; the lower end of the needle tube extends into the needle head and is in sliding fit with the inner wall of the needle head; the left side and the right side of the mounting plate are both fixedly connected with adhesive sheets; the mounting plate is provided with a needle limiting device. The utility model has the advantages that: the depth of the needle head inserted into the brain can be adjusted, and the length range of the needle tube extending into the brain can be enlarged when the needle tube is fixed.

Description

Puncture needle special for pediatrics

Technical Field

The utility model relates to the technical field of medical equipment.

Background

For the treatment of some symptoms such as hypertensive cerebral hemorrhage, brain abscess, etc., usually a thin-tube sharp-pointed single-hole puncture needle is adopted to extract the intracerebral hematoma, when the puncture needle is used, a needle tube needs to be inserted into the brain from the outside of the cranium to extract the intracerebral hematoma, but when the puncture needle is inserted, because the needle point is relatively sharp, if the operation is careless, the intracranial tissue is easily damaged, and after the needle tube is inserted, the needle tube is also easily touched on a pipeline on the outer wall, so that the intracranial needle tube moves, and the diagnosis and treatment are influenced.

The improved brain puncture needle for the department of pediatrics is disclosed as 201821169245.7 in the prior art, and is characterized in that after a needle head is inserted into a brain, the needle tube extends into the brain along a channel inside the needle head, the needle tube is fixed through the connection of a threaded sleeve and a screw rod, the problem that the needle tube is prone to shaking after insertion is avoided, one section of the needle tube extending into the brain is designed to be arc-shaped, and the risk of damage to brain tissues is reduced. However, due to the age of the child, the insertion depth of the needle is correspondingly adjusted, and the insertion depth of the needle cannot be limited in the scheme; in addition, the threaded sleeve and the screw rod in the scheme need to be connected with two groups at the same time, the operation is inconvenient, and the elongation of the screw rod cannot be adjusted, so that the length range of the needle tube extending into the brain is limited greatly when the needle tube can be fixed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the technique that exists is not enough to the aforesaid, provides a special pjncture needle of paediatrics, and it can adjust the syringe needle and insert the degree of depth in the brain, and when can improving fixed needle tubing, the needle tubing stretches into the length scope in the brain.

The utility model adopts the technical proposal that: the puncture needle special for the department of pediatrics comprises a needle tube which is vertically arranged, wherein main scale marks are arranged on the outer surface of the needle tube; the lower end of the needle tube is arc-shaped and is uniformly provided with a plurality of suction holes; the upper end of the needle tube is fixedly communicated with a connector through a corrugated conduit; the upper end of the outer wall of the needle tube is fixedly sleeved with an annular push plate; the needle tube positioning device is arranged on the push plate; the lower part of the outer wall of the needle tube is sleeved with a mounting plate in a sliding way; the lower end of the mounting plate is provided with a placing groove; a needle head is fixed in the middle of the placing groove; the lower end of the needle tube extends into the needle head and is in sliding fit with the inner wall of the needle head; the left side and the right side of the mounting plate are both fixedly connected with adhesive sheets; the mounting plate is provided with a needle limiting device;

the needle tube positioning device comprises a clamping ring rotatably sleeved outside the push plate, a positioning ring sleeved on the upper part of the outer wall of the needle tube and a threaded sleeve fixed at the upper end of the mounting plate; the left side of the clamping ring is sleeved with an A guide rod in a sliding manner, and the right side of the clamping ring is connected with an A positioning bolt in a threaded manner; the guide rod A and the positioning bolt A are arranged along the vertical direction; the lower end of the guide rod A penetrates through the lower end of the clamping ring and is fixed with the left side of the upper end of the positioning ring; the lower end of the positioning bolt A penetrates through the lower end of the clamping ring and rotates with the right side of the upper end of the positioning ring; the positioning ring is matched with the corresponding thread on the inner wall of the threaded sleeve; observation gaps are formed in the front side and the rear side of the screw sleeve;

the needle limiting device comprises a limiting plate which is sleeved outside the needle in a sliding manner; the limiting plate is correspondingly matched with the placing groove; the left side of the mounting plate is sleeved with a guide rod B in a sliding manner, and the right side of the mounting plate is connected with a positioning bolt B in a threaded manner; the guide rod B and the positioning bolt B are arranged along the vertical direction; the lower end of the guide rod B penetrates through the lower end of the mounting plate and is fixed with the left side of the upper end of the limiting plate; the lower end of the B positioning bolt penetrates through the lower end of the mounting plate and rotates with the right side of the upper end of the limiting plate; and the outer surface of the guide rod B is provided with a defined scale mark.

Further optimizes the technical proposal that an auxiliary grip is fixed at the upper end of the push plate of the puncture needle special for pediatrics.

Further optimize this technical scheme, the mounting panel left and right sides of paediatrics special pjncture needle is fixed with supplementary bandage.

The beneficial effects of the utility model reside in that:

1. the needle can be punctured into the brain of a patient, can extend into the brain along the inner channel of the needle through the needle tube, and can suck out hematoma in the brain through the suction hole in the needle tube; the main scale marks on the outer surface of the needle tube can enable an operator to clearly know the insertion depth of the needle tube; the circular arc structure of needle tubing lower extreme can reduce the risk that causes the harm to the tissue in the brain.

When hematoma is extracted, the corrugated catheter can prevent the needle tube from being driven to move through the soft telescopic action of the corrugated catheter even if an external suction pipeline moves, and the safety is improved; the mounting plate can be fixed on the head of a patient by the adhesive sheet, so that the needle head is fixed stably.

The positioning ring is in threaded connection with the threaded sleeve, so that the needle tube can be fixed; a positioning bolt and joint ring threaded connection, A positioning bolt lower extreme and holding ring upper end right side rotate, can adjust the distance between holding ring and the push pedal through revolving of A positioning bolt, combine the scope of holding ring and swivel nut joinable, the needle tubing can stretch into the length scope in the brain when increasing fixed needle tubing.

The guide rod A can play a role in guiding the positioning ring, so that the positioning bolt A can be conveniently adjusted; the observation gap on the screw sleeve can facilitate the observation of the main scale mark so as to determine the length of the needle tube extending into the brain.

2. The B positioning bolt is in threaded connection with the mounting plate, the lower end of the B positioning bolt rotates with the upper end of the limiting plate, and the distance between the limiting plate and the mounting plate can be adjusted through screwing the B positioning bolt, so that the length of the needle head which can extend into the brain of a patient is limited; the guide rod B can play a role in guiding the limiting plate, so that the positioning bolt B can be conveniently adjusted; the outer surface of the guide rod B is provided with a limit scale mark, so that the specific length of the needle head which can extend into the brain can be conveniently determined.

3. An auxiliary handle is fixed at the upper end of the push plate and can be held during operation, so that the convenience and the stability of the operation are improved; the left side and the right side of the mounting plate are fixed with auxiliary binding bands, so that the firmness of the mounting plate when the mounting plate is fixed on the head of a patient can be improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the needle cannula positioning device;

FIG. 3 is a schematic view of the construction of the needle tip restraining device;

fig. 4 is a schematic view of the structure of the lower end of the needle.

In the figure, 1, a needle tube; 2. a main scale line; 3. a suction hole; 4. a corrugated conduit; 5. a connector; 6. pushing the plate; 7. mounting a plate; 8. placing the mixture into a groove; 9. a needle head; 10. a sticker; 11. a snap ring; 12. a positioning ring; 13. a threaded sleeve; 14. a, a guide rod; 15. a, positioning a bolt; 16. observing the gap; 17. a limiting plate; 18. b, a guide rod; 19. b, positioning a bolt; 20. defining a graduation mark; 21. an auxiliary grip; 22. and (4) auxiliary binding bands.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 4, the puncture needle special for pediatrics comprises a needle tube 1 which is vertically arranged, wherein main scale marks 2 are arranged on the outer surface of the needle tube 1; the lower end of the needle tube 1 is arc-shaped and is uniformly provided with a plurality of suction holes 3; the upper end of the needle tube 1 is fixedly communicated with a connector 5 through a corrugated conduit 4; the upper end of the outer wall of the needle tube 1 is fixedly sleeved with an annular push plate 6; the push plate 6 is provided with a needle tube positioning device; the lower part of the outer wall of the needle tube 1 is sleeved with a mounting plate 7 in a sliding manner; the lower end of the mounting plate 7 is provided with a placing groove 8; a needle head 9 is fixed in the middle of the putting groove 8; the lower end of the needle tube 1 extends into the needle head 9 and is in sliding fit with the inner wall of the needle head 9; the left side and the right side of the mounting plate 7 are both fixedly connected with adhesive sheets 10; the mounting plate 7 is provided with needle limiting means.

As shown in fig. 2, the needle tube positioning device comprises a clamping ring 11 rotatably sleeved outside the push plate 6, a positioning ring 12 sleeved on the upper part of the outer wall of the needle tube 1, and a threaded sleeve 13 fixed at the upper end of the mounting plate 7; the left side of the clamping ring 11 is sleeved with an A guide rod 14 in a sliding mode, and the right side of the clamping ring is connected with an A positioning bolt 15 in a threaded mode; the A guide rod 14 and the A positioning bolt 15 are arranged along the vertical direction; the lower end of the guide rod A14 penetrates through the lower end of the clamping ring 11 and is fixed with the left side of the upper end of the positioning ring 12; the lower end of the A positioning bolt 15 penetrates through the lower end of the clamping ring 11 and rotates with the right side of the upper end of the positioning ring 12; the positioning ring 12 is in corresponding threaded fit with the inner wall of the threaded sleeve 13; the front side and the rear side of the screw sleeve 13 are both provided with observation gaps 16.

As shown in fig. 3, the needle limiting device comprises a limiting plate 17 which is sleeved outside the needle 9 in a sliding manner; the limiting plate 17 is correspondingly matched with the placing groove 8; the left side of the mounting plate 7 is sleeved with a B guide rod 18 in a sliding manner, and the right side of the mounting plate is connected with a B positioning bolt 19 in a threaded manner; the B guide rod 18 and the B positioning bolt 19 are arranged along the vertical direction; the lower end of the guide rod B18 penetrates through the lower end of the mounting plate 7 and is fixed with the left side of the upper end of the limiting plate 17; the lower end of the B positioning bolt 19 penetrates through the lower end of the mounting plate 7 and rotates with the right side of the upper end of the limiting plate 17; the outer surface of the B guide rod 18 is provided with a defined scale mark 20; an auxiliary handle 21 is fixed at the upper end of the push plate 6; auxiliary binding bands 22 are fixed on the left and right sides of the mounting plate 7.

Firstly, according to the specific conditions such as the age of the child, the length of the needle head 9 which can extend into the brain is limited, and then the positioning bolt B19 is screwed; by screwing the B positioning bolt 19, the limiting plate 17 can slide along the needle head 9, so that the B guide rod 18 is driven to move, and the limiting scale marks 20 on the B guide rod 18 are observed, so that the limiting plate 17 can accurately limit the extending length of the needle head 9; then, the mounting plate 7 is pushed, the needle 9 is inserted into the brain until being blocked by the limiting plate 17, the adhesive sheet 10 is adhered and fixed with the head of the patient, and the auxiliary bandage 22 is firmly tied on the head of the patient;

then, holding the auxiliary grip 21 by hand, gradually extending the needle tube 1 into the brain of the patient along the needle head 9, observing the main scale mark 2 at any time through the observation gap 16 to determine the insertion depth of the needle head 9, and when the positioning ring 12 is in contact with the screw sleeve 13, rotating the clamping ring 11 (only by one-hand operation, the operation is more convenient), the positioning ring 12 can be gradually in threaded connection with the screw sleeve 13, and at the moment, the needle tube 1 slowly extends, so that the accurate control of the extending length of the needle tube 1 by an operator is more convenient until the needle tube 1 extends to the right position; subsequently, can be connected with connector 5 through external suction means, at the in-process of extraction, the operator can avoid driving needle tubing 1 and syringe needle 9 and remove through the flexible effect of ripple pipe 4 when the hand removes, has improved the security.

In the process, the positioning ring 12 can slide along the needle tube 1 by screwing the positioning bolt A15, so that the guide rod A14 is driven to move, and the moving distance of the positioning ring 12 can be determined by observing the main scale mark 2 on the needle tube 1; by adjusting the distance between the positioning ring 12 and the push plate 6 and combining the connectable range of the positioning ring 12 and the threaded sleeve 13, the length range of the needle tube 1 which can extend into the brain can be improved when the needle tube is in a fixed state, and the applicability is enhanced.

Claims

1. A puncture needle special for pediatrics comprises a needle tube (1) which is vertically arranged, and is characterized in that; the outer surface of the needle tube (1) is provided with main scale marks (2); the lower end of the needle tube (1) is arc-shaped and is uniformly provided with a plurality of suction holes (3); the upper end of the needle tube (1) is fixedly communicated with a connector (5) through a corrugated conduit (4); an annular push plate (6) is fixedly sleeved at the upper end of the outer wall of the needle tube (1); a needle tube positioning device is arranged on the push plate (6); the lower part of the outer wall of the needle tube (1) is sleeved with a mounting plate (7) in a sliding manner; the lower end of the mounting plate (7) is provided with a placing groove (8); a needle head (9) is fixed in the middle of the putting groove (8); the lower end of the needle tube (1) extends into the needle head (9) and is in sliding fit with the inner wall of the needle head (9); the left side and the right side of the mounting plate (7) are fixedly connected with adhesive sheets (10); a needle limiting device is arranged on the mounting plate (7);

the needle tube positioning device comprises a clamping ring (11) rotatably sleeved outside the push plate (6), a positioning ring (12) sleeved on the upper part of the outer wall of the needle tube (1) and a threaded sleeve (13) fixed at the upper end of the mounting plate (7); the left side of the clamping ring (11) is sleeved with an A guide rod (14) in a sliding manner, and the right side of the clamping ring is connected with an A positioning bolt (15) in a threaded manner; the A guide rod (14) and the A positioning bolt (15) are arranged along the vertical direction; the lower end of the guide rod A (14) penetrates through the lower end of the clamping ring (11) and is fixed with the left side of the upper end of the positioning ring (12); the lower end of the A positioning bolt (15) penetrates through the lower end of the clamping ring (11) and rotates with the right side of the upper end of the positioning ring (12); the positioning ring (12) is in corresponding threaded fit with the inner wall of the threaded sleeve (13); observation gaps (16) are formed in the front side and the rear side of the screw sleeve (13);

the needle limiting device comprises a limiting plate (17) which is sleeved outside the needle (9) in a sliding manner; the limiting plate (17) is correspondingly matched with the placing groove (8); the left side of the mounting plate (7) is sleeved with a guide rod B (18) in a sliding manner, and the right side of the mounting plate is connected with a positioning bolt B (19) in a threaded manner; the guide rod B (18) and the positioning bolt B (19) are arranged along the vertical direction; the lower end of the guide rod B (18) penetrates through the lower end of the mounting plate (7) and is fixed with the left side of the upper end of the limiting plate (17); the lower end of the B positioning bolt (19) penetrates through the lower end of the mounting plate (7) and rotates with the right side of the upper end of the limiting plate (17); the outer surface of the B guide rod (18) is provided with a defined scale mark (20).

2. The needle for pediatric puncture according to claim 1, wherein: an auxiliary grip (21) is fixed at the upper end of the push plate (6).

3. The needle for pediatric puncture according to claim 1, wherein: auxiliary binding bands (22) are fixed on the left side and the right side of the mounting plate (7).