CN209996921U

CN209996921U - pressure sore prevention indwelling needle

Info

Publication number: CN209996921U
Application number: CN201920515986.4U
Authority: CN
Inventors: 张慧
Original assignee: Zhengzhou University Third Affiliated Hospital Henan Maternity and Child Health Care Hospital
Current assignee: Zhengzhou University Third Affiliated Hospital Henan Maternity and Child Health Care Hospital
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-01-31
Anticipated expiration: 2029-04-15

Abstract

prevent pressing sore and keep somewhere the needle, the effectual patient of having solved uses to keep somewhere the needle for a long time and causes easily to skin and press sore and the inconvenient problem of medical staff operation, and it includes casing and steel needle, be equipped with the sleeve on the casing, be equipped with the piston piece in the sleeve, be connected with extension spring between the rear end of piston piece and the sleeve, the rear end fixedly connected with spacer pin of piston piece, the outside cover of steel needle is equipped with circular block, be equipped with on the circular block can with spacer pin complex spacing hole, spacing hole cooperation formation limit structure on spacer pin and the circular block, telescopic outside is equipped with the gasbag, and the inside of gasbag is equipped with the spring, presses the gasbag and resumes deformation and makes the inside negative pressure that forms of gasbag, and negative pressure in the gasbag and piston piece cooperation form the structure that the piston piece slided forward, the utility model discloses novel structure thinks about ingeniously, has improved patient's comfort level, weakens patient's rejection mood.

Description

pressure sore prevention indwelling needle

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a prevent pressing sore and keep somewhere needle.

Background

The indwelling needle is a common medical apparatus in nursing work, has convenient use and the function of reducing the puncture times of patients, thereby reducing repeated puncture during clinical transfusion, reducing the puncture pain of patients and the workload of clinical nursing staff, and having extensive application in the current clinic.

However, the casing of keeping somewhere the needle is harder, long-time use can cause pressure sore to patient's skin, especially to children's patient, children's patient's skin is more sensitive, use for a long time and cause the damage to skin more easily, and children's mood is wayward, increase children's patient's conflict mood easily, be unfavorable for medical staff to develop work, in addition, the needle need utilize the needle handle to draw the steel needle outward after the puncture is accomplished to conventional needle of keeping somewhere, the operation is inconvenient, influence medical staff's work efficiency.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides an prevent pressing sore and keep somewhere the needle, use for a long time through this design effectually to keep somewhere the needle and cause easily to patient's skin to press sore and medical staff inconvenient problem of operation.

In order to achieve the purpose, the utility model provides a following technical scheme, the utility model comprises a shell and a steel needle, the shell is of a cavity structure, the steel needle can be arranged in the cavity of the shell in a vertical sliding manner, a sleeve in the front and back direction is arranged on the shell, a piston block capable of sliding in the sleeve is arranged in the sleeve, an th extension spring is connected between the rear end of the piston block and the sleeve, a limit pin is fixedly connected with the rear end of the piston block, a round block is sleeved outside the steel needle, a limit hole capable of being matched with the limit pin is arranged on the round block, and the limit pin is matched with the limit hole on the round block to form a limit structure;

the outside of sleeve is equipped with the gasbag, and the sleeve is arranged in the gasbag, is equipped with the check valve on the gasbag, and the inside of gasbag is equipped with th spring, presses the gasbag, and the gasbag resumes deformation and makes the inside negative pressure that forms of gasbag, and the negative pressure in the gasbag forms the structure that the piston block slided forward with the cooperation of piston block.

Preferably, the shell is internally provided with an isolation plug, a round stop block is arranged above the isolation plug, and the stop block is clamped on the inner wall of the shell.

Preferably, a square sliding groove is formed in the upper end of the inner part of the shell, a square block capable of sliding up and down in the square sliding groove is arranged in the square sliding groove, and a second tension spring is connected between the upper end of the square block and the inner wall of the shell;

the upper end of steel needle runs through isolation stopper and dog, the upper end of steel needle and the lower extreme fixed connection of square piece, and the cooperation of second extension spring and square piece forms the automatic structure that goes up slide of steel needle.

Preferably, a guide groove in the left-right direction is formed in the square block, a pin rod capable of sliding in the guide groove is arranged in the guide groove, and a second spring is connected between the left end of the pin rod and the guide groove;

the inner wall of the square sliding groove is provided with a groove matched with the pin rod, and the pin rod and the groove are matched to form a limiting structure.

Preferably, the lower end of the shell is fixedly connected with a guide pipe, the lower end of the steel needle penetrates through the shell and the guide pipe, the lower end of the steel needle is arranged outside the guide pipe, and the steel needle and the guide pipe are matched to form an anti-puncture structure.

Preferably, a needle handle is arranged outside the shell.

The utility model discloses novel structure thinks about ingeniously, and easy operation is convenient, through this design effectually solved the patient and used for a long time to keep somewhere the needle and cause easily to patient's skin and press sore and the inconvenient problem of medical staff operation, improved patient's comfort level, weaken patient's rejection mood, improved medical staff's work efficiency moreover.

Drawings

The accompanying drawings are included to provide a further understanding of the invention at , and are incorporated in and constitute a part of this specification at , which together with the description of embodiment serve to explain the invention and are not intended to limit the invention.

Fig. 1 is the overall sectioning structure schematic diagram of the utility model.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic view of the matching structure of the airbag and the housing of the present invention.

Fig. 4 is a schematic view of the structure of the sleeve and the piston block.

Fig. 5 is the utility model discloses square piece and square spout cooperation structure sketch map.

Detailed Description

The following is a detailed description of an embodiment of the present invention with reference to fig. 1-5.

Embodiment is given by fig. 1, fig. 2, fig. 3 and fig. 4, the utility model discloses a casing 1 and steel needle 5, casing 1 is the cavity structure, and steel needle 5 can be arranged in the cavity of casing 1 with sliding from top to bottom, and when medical personnel puncture for the patient, in order to realize spacing to steel needle 5, casing 1 is equipped with fore-and-aft direction sleeve 12, is equipped with piston block 13 that can slide in sleeve 12, is connected with extension spring 14 between the rear end of piston block 13 and sleeve 12, and the rear end fixedly connected with spacer pin 17 of piston block 13, the outside cover of steel needle 5 is equipped with circular block 11, is equipped with the spacing hole that can cooperate with spacer pin 17 on circular block 11, and spacer pin 17 forms spacing structure with the spacing hole cooperation on circular block 11, utilizes the pulling force of extension spring 14 to make spacer pin 17 cooperate with the spacing hole on circular block 11 downwards, guarantees that medical personnel can not slide steel needle 5 when puncturing for the patient;

the shell 1 of the indwelling needle is hard, pressure sores can be caused on the skin of a patient after long-time use, particularly, for a child patient, the skin of the child patient is sensitive, the skin is more easily damaged after long-time use, the emotion of the child is not easy to control, and the conflict emotion of the child is easily caused, the air bag 2 is arranged outside the sleeve 12, the air bag 2 has -determined elasticity, the pain of the patient can be relieved, the skin of the patient is prevented from being damaged, the sleeve 12 is arranged in the air bag 2, a one-way valve is arranged on the air bag 2, the one-way valve is the prior art, and is not described much, the -th spring 3 is arranged inside the air bag 2, when the indwelling needle is used, with the air bag 2 on the indwelling needle faces the skin of the patient, the air bag 2 is pressed after puncture of the patient is completed, gas inside the air bag 2 is exhausted through the one-way valve, then the hand is released, under the elastic force of the -th spring 3, the indwelling needle 2 restores to deform to enable the inside the air bag 2 to form negative pressure, the piston block 13 is matched with the piston block 13 to form a structure that the piston block 13 slides forwards, the piston block 17 slides forwards, and the limiting pin drives the limiting needle to slightly rotate and then.

In the second embodiment, on the basis of the embodiment , as shown in fig. 1 and 5, in order to achieve better effect, an isolating plug 10 is disposed in the housing 1, the isolating plug 10 and the lower end of the housing 1 form an infusion chamber, the liquid medicine enters the catheter 4 through the infusion chamber and enters the patient through the catheter 4, in order to avoid the isolating plug 10 sliding upwards under the driving of the steel needle 5, a circular stopper 9 is disposed above the isolating plug 10, and the stopper 9 is clamped on the inner wall of the housing 1.

In the third embodiment, on the basis of the second embodiment, as shown in fig. 1, 4 and 5, in order to realize the automatic upward sliding of the steel needle 5, a square chute is arranged at the upper end inside the housing 1, a square block 8 capable of sliding up and down in the square chute is arranged in the square chute, a second tension spring 7 is connected between the upper end of the square block 8 and the inner wall of the housing 1, and the second tension spring 7 is matched with the square block 8 to form an upward sliding structure;

the isolating plug 10 and the stop dog 9 are run through to the upper end of steel needle 5, and the upper end of steel needle 5 and the lower extreme fixed connection of square piece 8, and after spacing was relieved in spacing hole on spacer pin 17 and the circular block 11, second extension spring 7 made steel needle 5 go up the slip through pulling square piece 8, and second extension spring 7 and square piece 8 cooperation form the structure that steel needle 5 was automatic to go up the slip.

In a fourth embodiment, on the basis of the third embodiment, as shown in fig. 5, in order to limit the steel needle 5 after sliding up, a guide groove in the left-right direction is formed in the square block 8, a pin 16 capable of sliding in the guide groove is formed in the guide groove, and a second spring 15 is connected between the left end of the pin 16 and the guide groove;

the inner wall of square spout be equipped with can with 16 complex recesses of pin rod, when pin rod 16 slided to groove along with square piece 8 on, pin rod 16 slided out the guide way and with the recess cooperation under the effect of second spring 15, pin rod 16 forms limit structure with the recess cooperation, realizes spacing for the second time to steel needle 5.

Fifth embodiment, based on the , as shown in fig. 1 and 2, the lower end of the housing 1 is fixedly connected with the catheter 4, the catheter 4 has higher toughness than the steel needle 5, so as to reduce damage to the blood vessel, the lower end of the steel needle 5 penetrates through the housing 1 and the catheter 4, the lower end of the steel needle 5 is disposed outside the catheter 4, the steel needle 5 slides up after the medical staff completes puncturing the patient, the lower end of the steel needle 5 is wrapped by the catheter 4, and the steel needle 5 and the catheter 4 are matched to form the anti-puncture structure.

Sixth embodiment, based on , as shown in fig. 1 and 2, a needle handle 6 is provided on the outside of the housing 1, and the medical staff operates the indwelling needle through the needle handle 6 for the convenience of operation.

The utility model discloses during the use, that has gasbag 2 on the needle will be kept somewhere is facing to patient's skin, press gasbag 2 after accomplishing for the patient puncture, 2 inside gases of gasbag pass through the check valve and discharge, then loosen the hand, under spring 3's spring action, gasbag 2 resumes deformation and makes the inside negative pressure that forms of gasbag 2, negative pressure in the gasbag 2 forms piston block 13 gliding structure forward with the cooperation of piston block 13, piston block 13 slides forward and drives spacing hole in spacer pin 17 slips away circular block 11, thereby remove the spacing to steel needle 5, spacing back is relieved in spacing hole on spacer pin 17 and circular block 11, second extension spring 7 makes steel needle 5 go up through pulling square block 8, casing 1 can slightly rotate this moment makes gasbag 2 face patient's skin and will keep somewhere needle simultaneously and fix with the sticky tape.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

The utility model provides a kind of pressure sore preventing indwelling needle, including casing (1) and steel needle (5), its characterized in that, casing (1) is the cavity structure, and in the cavity of casing (1) was arranged in to steel needle (5) can slide from top to bottom, be equipped with fore-and-aft direction sleeve (12) on casing (1), be equipped with piston piece (13) that can slide in sleeve (12), be connected with extension spring (14) between the rear end of piston piece (13) and sleeve (12), the rear end fixedly connected with spacer pin (17) of piston piece (13), the outside cover of steel needle (5) is equipped with circular block (11), be equipped with on circular block (11) can with spacer pin (17) complex spacing hole, spacer pin (17) and the spacing hole cooperation on circular block (11) form limit structure;

the outside of sleeve (12) is equipped with gasbag (2), and in gasbag (2) were arranged in to sleeve (12), be equipped with the check valve on gasbag (2), the inside of gasbag (2) was equipped with spring (3), presses gasbag (2), and gasbag (2) resume deformation and make gasbag (2) inside form the negative pressure, and the negative pressure in gasbag (2) forms piston block (13) structure that slides forward with piston block (13) cooperation.
2. The kinds of pressure sore preventing indwelling needle according to claim 1, wherein a separating plug (10) is arranged in the housing (1), a round stopper (9) is arranged above the separating plug (10), and the stopper (9) is clamped on the inner wall of the housing (1).
3. The kinds of pressure sore preventing indwelling needle of claim 2, wherein a square chute is arranged at the upper end inside the housing (1), a square block (8) capable of sliding up and down in the square chute is arranged in the square chute, and a second tension spring (7) is connected between the upper end of the square block (8) and the inner wall of the housing (1);

isolation stopper (10) and dog (9) are run through to the upper end of steel needle (5), the upper end of steel needle (5) and the lower extreme fixed connection of square piece (8), and second extension spring (7) and square piece (8) cooperation form the structure that steel needle (5) are automatic to be slided upward.
4. The kinds of pressure sore preventing indwelling needle of claim 3, wherein a guide groove in the left-right direction is arranged in the square block (8), a pin rod (16) which can slide in the guide groove is arranged in the guide groove, and a second spring (15) is connected between the left end of the pin rod (16) and the guide groove;

the inner wall of the square sliding groove is provided with a groove which can be matched with the pin rod (16), and the pin rod (16) is matched with the groove to form a limiting structure.
5. The kinds of pressure sore preventing indwelling needle according to claim 1, wherein a catheter (4) is fixedly connected to the lower end of the housing (1), the lower end of the steel needle (5) penetrates through the housing (1) and the catheter (4), the lower end of the steel needle (5) is placed outside the catheter (4), and the steel needle (5) and the catheter (4) are matched to form a puncture-proof structure.
6. The kinds of pressure sore prevention indwelling needle according to claim 1, wherein a needle handle (6) is provided outside the housing (1).