CN216358570U - Puncture needle assembly and analgesia device thereof - Google Patents

Abstract

The utility model discloses a puncture needle assembly and an analgesic device thereof, belonging to the technical field of medical instruments, and comprising a sacral canal puncture needle, an epidural catheter and a dressing assembly, wherein the outside of the sacral canal puncture needle is sleeved with an auxiliary outer sleeve, and the auxiliary outer sleeve can pass through the sacral ligament of a patient along with the sacral canal puncture needle; the sacral canal catheterization puncture needle comprises a puncture needle body, one end of the puncture needle body is fixedly connected with a puncture needle fixing head, and the sacral canal catheterization puncture needle has the beneficial effects that: the auxiliary outer sleeve can be inserted into the sacral ligament of a patient along with the sacral canal puncture needle and communicated with the sacral canal cavity, so that the wound of the patient is small, treatment and recovery of the patient are facilitated, the main pipe body is inserted into the auxiliary outer sleeve and communicated with the sacral canal cavity of the patient, liquid medicine can be uniformly injected by using an analgesia pump, pain of the patient is reduced, and an analgesia effect is achieved.

Description

Puncture needle assembly and analgesia device thereof

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a puncture needle assembly and an analgesic device thereof.

Background

Pain after operation of hemorrhoids, anal fistula and perianal abscess is usually subjected to multi-mode analgesia by adopting intravenous medicines, oral medicines, intramuscular injection, PCA and the like at present, so that the postoperative pain is solved to a certain extent, but the effect on severe pain is very little; the lumbar part is subjected to epidural analgesia, the lower limb movement is influenced, and the incidence rate of urine retention is high; and the puncture wound is large, the puncture success rate is low, and the treatment and the recovery of patients are not facilitated.

Disclosure of Invention

The utility model is provided in view of the problems of the prior puncture needle assembly and the analgesia device thereof.

Therefore, the utility model aims to provide a puncture needle assembly and an analgesia device thereof, wherein a sacral canal puncture needle is arranged, an auxiliary outer sleeve is sleeved outside the sacral canal puncture needle, the auxiliary outer sleeve is inserted into the sacral ligament of a patient along with the sacral canal puncture needle and is communicated with the sacral canal cavity, then the sacral canal puncture needle is pulled out, an epidural catheter is inserted into the sacral canal cavity along the inner cavity of the auxiliary outer sleeve to ensure that the wound of the patient is small, the main tube body is connected with a pain easing pump, and the pain of the patient is relieved by uniformly injecting liquid medicine through the pain easing pump; the lumbar part is subjected to epidural analgesia, the lower limb movement is influenced, and the incidence rate of urine retention is high; and the puncture wound is large, the puncture success rate is low, and the treatment and recovery of patients are not facilitated.

To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:

a puncture needle assembly comprises a sacral canal puncture needle, an epidural catheter and an application assembly, wherein an auxiliary outer cannula is sleeved outside the sacral canal puncture needle and can penetrate through a sacral ligament of a patient along with the sacral canal puncture needle;

the sacral canal catheterization puncture needle comprises a puncture needle body, and one end of the puncture needle body is fixedly connected with a puncture needle fixing head;

the auxiliary outer sleeve comprises an embedding tube, and one end of the embedding tube is fixedly connected with a needle stabilizing tube;

the auxiliary outer sleeve comprises a main pipe body, one end of the main pipe body is a preset inlet pipe body, one end, far away from the preset inlet pipe body, of the main pipe body is fixedly connected with an analgesia pump connector, one end, far away from the analgesia pump connector, of the main pipe body is a closed end, and a first through hole is formed in the side wall of the main pipe body.

In a preferred embodiment of a lancet assembly according to the present invention, the lancet assembly further comprises: the puncture needle fixing head is far away from one end of the puncture needle body and is fixedly connected with the sleeve pipe, the puncture needle fixing head and the sleeve pipe are both of a hollow structure, and the puncture needle fixing head is communicated with the sleeve pipe.

In a preferred embodiment of a lancet assembly according to the present invention, the lancet assembly further comprises: the outer wall of the sleeve pipe is provided with two groups of limiting push rods, and the two groups of limiting push rods are symmetrically arranged around the axis of the sleeve pipe.

In a preferred embodiment of a lancet assembly according to the present invention, the lancet assembly further comprises: the needle stabilizing tube is far away from one end of the embedded tube is fixedly connected with the outer sleeve, one end of the outer sleeve is provided with a limiting notch for limiting a limiting push rod, and the limiting notches are two groups, and are two groups of limiting notches which are symmetrical about the axis of the outer sleeve.

In a preferred embodiment of a lancet assembly according to the present invention, the lancet assembly further comprises: the width of the limiting notch is consistent with that of the limiting push rod, so that the sleeving pipe cannot shake after being sleeved into the outer sleeve.

In a preferred embodiment of a lancet assembly according to the present invention, the lancet assembly further comprises: the outer wall of the main pipe body is sleeved with an elastic limiting ring, and the main pipe body can slide and be locked on the main pipe body.

In a preferred embodiment of a lancet assembly according to the present invention, the lancet assembly further comprises: the outer wall of the main pipe body is sleeved with an anti-bending elbow pipe, an anti-bending spring is arranged in the inner cavity of the anti-bending elbow pipe, and the inner wall of the anti-bending spring is sleeved with the main pipe body.

In a preferred embodiment of a lancet assembly according to the present invention, the lancet assembly further comprises: and a second through hole is formed in the top end of the bending-preventing pipe, and the diameter of the second through hole is smaller than that of the bending-preventing spring.

In a preferred embodiment of a lancet assembly according to the present invention, the lancet assembly further comprises: the puncture needle body is far away from the one end of steady needle tubing and is equipped with the syringe needle, it is equipped with contrast scale mark to put into the tub outer wall, the inclined plane length of syringe needle sets up to 0.3-0.7mm the syringe needle stretches out the length of putting into the pipe is 0.06-0.14mm, the syringe needle surface hugs closely put into the intraductal wall, the one end that the syringe needle pierces skin is through passivation.

An analgesia device comprises a puncture needle assembly and an analgesia pump, wherein the analgesia pump is communicated with the main pipe body through an analgesia pump joint.

Compared with the prior art:

1. the sacral canal puncture needle is sleeved in the inner cavity of the auxiliary outer sleeve, so that the auxiliary outer sleeve can be inserted into the sacral ligament of a patient along with the sacral canal puncture needle and is communicated with the sacral canal cavity, the wound of the patient is small, and the treatment and recovery of the patient are facilitated;

2. the main tube body is inserted into the auxiliary outer sleeve and communicated with the sacral cavity of the patient, so that the liquid medicine can be uniformly injected by using the analgesia pump, the pain of the patient is reduced, and the analgesia effect is achieved.

3. By arranging the anti-bending bent pipe, the anti-bending spring, the first anti-bending bent pipe and the steel wire, one end of the main pipe body close to the skin of the patient can be prevented from being bent, and the pre-placed pipe body is prevented from being bent, so that the smooth and uniform injection of the liquid medicine can be ensured;

4. the depth of the inserting tube penetrating into the sacral cavity is judged by using the contrast scale lines, so that the next time of quickly completing the puncture is facilitated for the same patient;

5. by arranging the application assembly, the waterproof adhesive tape is utilized to effectively avoid a waterproof effect, and the application is prevented from being separated;

6. one end of the main pipe body is a closed end, and the side wall of the end is provided with a through hole, so that the tissue fluid in the sacral canal cavity is difficult to enter the main pipe body to block the main pipe body under the condition of ensuring smooth injection of the liquid medicine.

Drawings

FIG. 1 is a schematic view of a sacral catheterization needle provided by the present invention sheathed in an inner cavity of an auxiliary sheath;

fig. 2 is a schematic structural view of a sacral catheterization needle provided in accordance with the present invention;

fig. 3 is a schematic structural diagram of an epidural catheter provided by the utility model;

FIG. 4 is an enlarged view taken at A in FIG. 3 according to the present invention;

FIG. 5 is a schematic view of an applicator assembly provided by the present invention;

FIG. 6 is a perspective view of an outer sleeve provided in accordance with the present invention;

fig. 7 is an enlarged view of the utility model at B in fig. 3.

In the figure: the sacral canal puncture needle comprises a sacral canal puncture needle 1, a puncture needle body 11, a needle 111, a sleeve 12, a limiting push rod 121, a puncture needle fixing head 13, an auxiliary outer sleeve 2, an outer sleeve 21, a limiting notch 211, an imbedding tube 22, a contrast scale line 221, a needle stabilizing tube 23, an epidural catheter 3, an analgesic pump connector 31, a main tube body 32, a through hole 321, a preset imbedding tube body 33, an anti-bending elbow 34, a through hole 341, an anti-bending spring 35, a limiting ring 36, an application component 4, an application paste 41 and a waterproof adhesive tape 42.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The utility model provides a puncture needle assembly, please refer to fig. 1-7, comprising a sacral canal puncture needle 1, an epidural catheter 3 and an application assembly 4, wherein an auxiliary outer cannula 2 is sleeved outside the sacral canal puncture needle 1, and the auxiliary outer cannula 3 can pass through the sacral ligament of a patient along with the sacral canal puncture needle 1;

the sacral canal catheterization needle 1 comprises a puncture needle body 11, and one end of the puncture needle body 11 is fixedly connected with a puncture needle fixing head 13;

the auxiliary outer sleeve 2 comprises an inserting tube 22, and one end of the inserting tube 22 is fixedly connected with a needle stabilizing tube 23; the needle stabilizing tube 23 functions to maintain the stability of the puncture needle holder 13, and thus the puncture needle body 11;

the auxiliary outer sleeve 3 comprises a main pipe body 32, one end of the main pipe body 32 is a preset pipe body 33, one end, far away from the preset pipe body 33, of the main pipe body 32 is fixedly connected with an analgesic pump connector 31, one end, far away from the analgesic pump connector 31, of the main pipe body 32 is a closed end, and a through hole 321 is formed in the side wall of the main pipe body; the analgesic pump connector 31 is used for connecting the analgesic pump, so that the analgesic pump can inject liquid medicine into a patient through the main pipe body 32; one end of the main tube body 32 is a closed end, so that tissue fluid in the sacral canal cavity is not easy to enter the main tube body 32 to block the main tube body 32;

further, one end of the puncture needle fixing head 13, which is far away from the puncture needle body 11, is fixedly connected with the connecting sleeve 12, the puncture needle fixing head 13 and the connecting sleeve 12 are both of a hollow structure, and the puncture needle fixing head 13 is communicated with the connecting sleeve 12.

Further, the outer wall of the sleeve 12 is provided with two groups of limiting push rods 121, and the two groups of limiting push rods 121 are symmetrically arranged around the axis of the sleeve 12;

the application assembly 4 comprises an application 41, and a waterproof adhesive tape 42 is bonded on the application 41; after the puncture is finished, the application 41 covers the anti-folding elbow pipe 34 to fix the anti-folding elbow pipe 34; the waterproof adhesive tape 42 covers three sides of the application 41, so that a waterproof effect is achieved, and the application is prevented from being separated due to repeated soaking and washing and fumigation after the operation; the application 41 is made of 3m adhesive tape, and can effectively fix the bending tube 34 (one end close to the hip) on the hip without easy separation.

Further, one end of the needle stabilizing tube 23, which is far away from the inserting tube 22, is fixedly connected with the outer tube 21, one end of the outer tube 21 is provided with a limiting notch 211 for limiting the limiting push rod 121, and the limiting notches 211 are provided with two sets, and the two sets of the limiting notches 211 are symmetrical about the axis of the outer tube 21.

Further, the width of the limiting notch 211 is the same as that of the limiting push rod 121, so that the sleeve 12 cannot shake after being sleeved into the outer sleeve 21; thereby the puncture needle body 11 can be kept stable, and can be vertically and stably inserted into a patient without causing great trauma to the patient.

Furthermore, the outer wall of the main pipe body 32 is sleeved with an elastic limit ring 36, which can slide on the main pipe body 32 and is locked on the main pipe body 32; the stop collar 36 functions to limit the anti-kink elbow 34.

Further, an anti-bending elbow 34 is sleeved on the outer wall of the main pipe body 32, an anti-bending spring 35 is arranged in the inner cavity of the anti-bending elbow 34, and the inner wall of the anti-bending spring 35 is sleeved on the main pipe body 32; the function of the anti-buckling elbow 34 is to wrap the anti-buckling spring 35.

Further, a through hole 341 is formed at the top end of the bending-prevention elbow 34, and the diameter of the through hole 341 is smaller than that of the bending-prevention spring 35; the anti-bending spring 35 prevents the main tube 32 from bending near the skin piercing end, thereby ensuring the main tube 34 to inject the liquid medicine smoothly.

Furthermore, a needle 111 is arranged at one end of the puncture needle body 11 away from the needle stabilizing tube 23, a contrast scale mark 221 is arranged on the outer wall of the insertion tube 22, the length of the inclined plane of the needle 111 is set to be 0.3-0.7mm, preferably 0.5mm, the length of the needle 111 extending out of the insertion tube 22 is 0.06-0.14mm, preferably 0.1mm, so that on one hand, the needle 111 can puncture the skin, and on the other hand, the insertion depth of the insertion tube 22 and the insertion depth of the needle 111 are substantially the same; the outer surface of the needle 111 clings to the inner wall of the inserting tube 22, thereby ensuring that the inserting tube 22 can be smoothly inserted into the sacral ligament of the patient along with the needle 111 and communicated with the sacral canal cavity; the end of the needle 111 penetrating into the skin is passivated, so that the situation that the end of the needle 111 penetrating into the skin is too sharp and causes great trauma to sacral ligaments is avoided.

An analgesia device comprises a puncture needle assembly and an analgesia pump, wherein the analgesia pump is communicated with a main pipe body 32 through an analgesia pump joint 31; the analgesic pump and the main pipe body 32 are used for injecting the liquid medicine, so that the liquid medicine injection is more uniform, the pain of a patient is relieved, and the analgesic effect is achieved.

When the sacral canal puncture needle is used specifically, the sacral canal puncture needle 1 is inserted into the auxiliary outer sleeve 2, and the limit push rod 121 is embedded into the limit notch 211, so that the stability is maintained between the auxiliary outer sleeve 2 and the sacral canal puncture needle 1; the handheld sleeve 12 inserts the sacral canal puncture needle 1 into the sacral ligament of the patient and communicates with the sacral canal cavity, and the limit push rod 121 drives the auxiliary outer sleeve 2 to be inserted into the sacral ligament of the patient and communicate with the sacral canal cavity; the sacral canal puncture needle 1 is drawn out from the inner cavity, one end of the main tube body 32 with the pre-insertion tube body 33 penetrates into the auxiliary outer sleeve 2 to be communicated with the sacral canal cavity, the depth of the insertion tube 22 penetrating into the sacral canal cavity is judged by utilizing the contrast scale line 221, the position of the limit ring 36 is adjusted, the anti-folding elbow 34 is made to be close to the position where the patient is punctured, after the puncture is finished, the application 41 is covered on the anti-folding elbow 34, and the anti-folding elbow 34 is fixed on the hip; the waterproof adhesive tape 42 covers three sides of the application 41, thereby achieving a waterproof effect, and avoiding the detachment of the application caused by repeated soaking and fumigation after operation, thereby preventing the main pipe body 32 from being bent to influence the injection of the liquid medicine; the analgesia pump is connected with the analgesia pump connector 31 on the epidural catheter 3, and the analgesia pump utilizes the main pipe body 32 and the through hole 321 to evenly inject liquid medicine to relieve the pain of patients.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the disclosed embodiments of the utility model may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. A puncture needle assembly comprises a sacral canal puncture needle (1), an epidural catheter (3) and an application assembly (4), and is characterized in that: an auxiliary outer sleeve (2) is sleeved on the outer side of the sacral canal puncture needle (1), and the auxiliary outer sleeve (2) can penetrate through the sacral ligament of a patient along with the sacral canal puncture needle (1);

the sacral canal puncture needle (1) comprises a puncture needle body (11), and one end of the puncture needle body (11) is fixedly connected with a puncture needle fixing head (13);

the auxiliary outer sleeve (2) comprises an inserting tube (22), and one end of the inserting tube (22) is fixedly connected with a needle stabilizing tube (23);

epidural pipe (3) are including being responsible for body (32), be responsible for body (32) one end and preset into body (33), be responsible for body (32) and keep away from one end fixed connection analgesia pump connector (31) of body (33) are put into in advance, be responsible for the one end that body (32) kept away from analgesia pump connector (31) is the blind end, and has seted up through-hole one (321) on the lateral wall.

2. A puncture needle assembly according to claim 1, wherein the end of the puncture needle fixing head (13) far away from the puncture needle body (11) is fixedly connected with a sleeve (12), the puncture needle fixing head (13) and the sleeve (12) are both hollow structures, and the puncture needle fixing head (13) is communicated with the sleeve (12).

3. The puncture needle assembly according to claim 2, wherein the outer wall of the sleeve (12) is provided with two groups of limiting push rods (121), and the two groups of limiting push rods (121) are symmetrically arranged around the axis of the sleeve (12);

the application assembly (4) comprises an application patch (41), and a waterproof adhesive tape (42) is bonded on the application patch (41).

4. A puncture needle assembly according to claim 3, wherein the end of the needle stabilizing tube (23) away from the insertion tube (22) is fixedly connected with the outer sleeve (21), one end of the outer sleeve (21) is provided with two sets of limiting notches (211) for limiting the limiting push rod (121), and the two sets of limiting notches (211) are symmetrical with respect to the axis of the outer sleeve (21).

5. A puncture needle assembly according to claim 4, wherein the width of the limit notch (211) is the same as the width of the limit push rod (121), so that the sleeve (12) will not shake after being sleeved on the outer sleeve (21).

6. A puncture needle assembly according to claim 1, wherein the main tube body (32) has a resilient stop ring (36) fitted around the outer wall thereof, and is slidable on the main tube body (32) and lockable to the main tube body (32).

7. A puncture needle assembly according to claim 1, wherein an anti-bending elbow (34) is sleeved on the outer wall of the main tube body (32), an anti-bending spring (35) is arranged in the inner cavity of the anti-bending elbow (34), and the main tube body (32) is sleeved on the inner wall of the anti-bending spring (35).

8. The needle assembly of claim 7, wherein the second through hole (341) is defined at the top end of the bending-prevention bend (34), and the diameter of the second through hole (341) is smaller than that of the bending-prevention spring (35).

9. A puncture needle assembly according to claim 1, wherein a needle tip (111) is provided at an end of the puncture needle body (11) remote from the needle stabilizer (23), the outer wall of the insertion tube (22) is provided with contrast marks (221), the length of the inclined surface of the needle tip (111) is set to 0.3-0.7mm, the length of the needle tip (111) extending out of the insertion tube (22) is 0.06-0.14mm, the outer surface of the needle tip (111) is closely attached to the inner wall of the insertion tube (22), and the end of the needle tip (111) penetrating the skin is passivated.

10. An analgesic device comprising an introducer needle assembly as claimed in any one of claims 1 to 9 and an analgesic pump communicating with the main tube body (32) through an analgesic pump connector (31).

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