CN219557491U - Disposable abdominal cavity puncture needle - Google Patents

Abstract

The utility model discloses a disposable abdominal cavity puncture needle, which comprises an abdominal cavity drainage tube, an end cover and a puncture needle. The abdominal cavity drainage tube is including soft needle, skin fixed section, hemostatic forceps holding section and the drainage tube joint that connect gradually, and the circumference of soft needle distributes there is the side opening, and end cover detachably installs on the abdominal cavity drainage tube, and the pjncture needle includes the steel needle with soft needle looks adaptation and installs the operation head that keeps away from abdominal cavity drainage tube one end at the steel needle. Adopt above technical scheme's disposable abdominal cavity pjncture needle, through the cooperation of steel needle and soft needle, can utilize the steel needle to impale patient's skin easily when the puncture, reduce patient's pain sense, can pull out the steel needle completely after accomplishing the puncture, utilize soft needle to carry out drainage, can not prick patient's intestinal canal and viscera, the potential safety hazard has been overcome, simultaneously through set up the side opening on soft needle, can show improvement ascites drainage efficiency, make ascites suction cleaner, the improvement treatment effect, and soft needle drainage mode is better than traditional steel needle drainage biocompatibility.

Description

Disposable abdominal cavity puncture needle

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a disposable abdominal cavity puncture needle.

Background

The disposable abdominal cavity puncture needle is used for hardening ascites, peritonitis and unidentified ascites, is one of important instruments for abdominal cavity puncture, is used for draining and decompressing the ascites in the abdominal cavity of a patient, and simultaneously performs biochemical, routine, culture and other examinations on the ascites, is not only an examination method, but also a treatment scheme, is disposable, and can effectively avoid cross infection.

The existing disposable abdominal cavity puncture needle generally adopts steel needle drainage, not only can the abdominal cavity negative pressure of a patient be larger, but also the circumferential direction of the steel needle is not provided with any opening, so that the ascites of the patient cannot be completely led out, and the patient is required to change the body position for many times in the drainage process, so that the steel needle possibly punctures the intestinal tract of the patient, thereby aggravating infection, even leading to major bleeding risk caused by puncturing important organs such as liver, spleen and the like, and having great potential safety hazard.

Solving the above problems is urgent.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a disposable abdominal cavity puncture needle.

The technical scheme is as follows:

a disposable abdominal cavity puncture needle is characterized by comprising an abdominal cavity drainage tube, an end cover and a puncture needle;

the abdominal cavity drainage tube comprises a soft needle, a skin fixing section, a hemostatic forceps clamping section and a drainage tube connector which are sequentially connected, wherein the soft needle is of a circular tube structure made of flexible plastics, side holes are distributed in the circumferential direction of the soft needle, the hemostatic forceps clamping section is of a cylindrical structure made of flexible plastics, two ends of the skin fixing section are respectively communicated with the soft needle and the hemostatic forceps clamping section, the diameter of the skin fixing section gradually increases from one end connected with the soft needle to one end connected with the hemostatic forceps clamping section, and the drainage tube connector is arranged at one end, far away from the hemostatic forceps clamping section, of the hemostatic forceps clamping section;

the end cover is detachably arranged on the abdominal cavity drainage tube, the puncture needle comprises a steel needle matched with the soft needle and an operation head arranged at one end of the steel needle far away from the abdominal cavity drainage tube, and one end of the steel needle inserted into the abdominal cavity drainage tube is a needle point which is gradually reduced;

before the patient is punctured, the needle point of the steel needle is inserted into the abdominal cavity drainage tube after penetrating through the end cover, the needle point outwards penetrates out of the soft needle, and the operation head is abutted with the end cover; after the puncture of the patient is completed, the steel needle is withdrawn back from the abdominal cavity drainage tube and the end cover in sequence.

As preferable: the side holes are uniformly distributed at one end of the soft needle close to the needle head along the circumferential direction.

By adopting the structure, not only can the efficiency of ascites drainage be further improved, but also the ascites can be sucked more thoroughly.

As preferable: the skin fixing section comprises a fixing section inner layer and a fixing section ring piece sleeved on the fixing section inner layer, the soft needle and the hemostatic forceps clamping section are formed by adopting flexible plastics in one step, and the fixing section ring piece and the drainage pipe joint are integrally formed with the fixing section inner layer, the soft needle and the hemostatic forceps clamping section by adopting hard plastics through a double-color injection molding process.

By adopting the structure, the inner layer of the fixing section, the soft needle and the clamping section of the hemostatic forceps are molded at one time, so that the structure strength is higher, the tightness is better, and the problem of liquid leakage during ascites drainage is avoided; the fixed section ring piece and the drainage tube joint are integrally formed on the inner layer of the fixed section and the clamping section of the hemostatic forceps by adopting hard plastic, so that the connection reliability is high, the loosening problem can not occur, the harder fixed section ring piece can be conveniently and reliably fixed with the skin of a patient, and further, more damage and inflammatory reaction to the soft tissue of the skin of the patient caused by repeated puncture of a pure steel needle are avoided.

As preferable: the outer peripheral surface of the fixed section ring piece is of a conical surface structure.

With the above structure, the fixing can be performed better.

As preferable: the external thread structure is integrally formed on the outer peripheral surface of the drainage pipe joint, the end cover is provided with a connecting sleeve matched with the drainage pipe joint, and the inner peripheral surface of the connecting sleeve is provided with an internal thread structure in threaded fit with the external thread structure.

By adopting the structure, the drainage tube connector and the end cover can be reliably connected, and the drainage tube connector and the negative pressure bag are reliably connected after puncture is conveniently completed, and the operation is simple.

As preferable: one end integrated into one piece that the adapter sleeve kept away from drainage coupling has the spacing dish, and the central point of this spacing dish puts and has seted up the diameter and is greater than the rubber buffer mounting hole of steel needle, is provided with the rubber sealing plug that the steel needle can impale in this rubber buffer mounting hole.

By adopting the structure, the drainage tube connector and the end cover can be reliably connected, the tightness is good, and the steel needle can be conveniently penetrated.

As preferable: one side of the limiting disc, which is far away from the connecting sleeve, is integrally formed with a safety ring, and a magnet capable of adsorbing the steel needle is arranged on the inner wall of the safety ring.

With the structure, in the process of completing puncture needle withdrawal, when the needle tip of the steel needle withdraws to the safety ring, the magnet can adsorb the needle tip, so that a doctor is prevented from being stabbed when the needle tip is pulled out, and occupational exposure is avoided.

As preferable: the end that the operating head kept away from the end cover is provided with the indicator that targets in place, has the test paper that discolours in this indicator that targets in place, the one end that the steel needle inserted the operating head and discoloured test paper contact.

By adopting the structure, the color-changing test paper can change color rapidly after being contacted with ascites, so that a doctor can be reminded of puncturing in place at the first time through the setting of the color-changing test paper, and injuries to patients caused by too deep sharp puncturing are avoided.

As preferable: the end face of one end of the soft needle far away from the skin fixing section is a smooth plane which is circular.

By adopting the structure, the intestinal tracts and organs of the patient can be better prevented from being damaged.

Compared with the prior art, the utility model has the beneficial effects that:

adopt above technical scheme's disposable abdominal cavity pjncture needle, through the cooperation of steel needle and soft needle, can utilize the steel needle to impale patient's skin easily when the puncture, reduce patient's pain sense, can pull out the steel needle completely after accomplishing the puncture, utilize soft needle to carry out drainage, can not prick patient's intestinal canal and viscera, the potential safety hazard has been overcome, simultaneously through set up the side opening on soft needle, can show improvement ascites drainage efficiency, make ascites suction cleaner, the improvement treatment effect, and soft needle drainage mode is better than traditional steel needle drainage biocompatibility.

Drawings

FIG. 1 is a schematic view of the structure of a disposable abdominal cavity puncture needle when performing puncture;

FIG. 2 is a cross-sectional view of the disposable abdominal cavity puncture needle when performing puncture;

FIG. 3 is a schematic view of the disposable abdominal cavity puncture needle in the needle withdrawing state;

FIG. 4 is a schematic illustration of the mating relationship of the peritoneal drainage tube and the end cap;

FIG. 5 is a schematic view of the structure of the abdominal cavity drainage tube;

FIG. 6 is a schematic view of one of the end caps from one view;

fig. 7 is a schematic view of an alternative view of the end cap.

Detailed Description

The utility model is further described below with reference to examples and figures.

As shown in fig. 1 to 3, a disposable abdominal cavity puncture needle mainly comprises an abdominal cavity drainage tube 1, an end cover 2 and a puncture needle 3.

Referring to fig. 1 to 5, the abdominal cavity drainage tube 1 includes a soft needle 11, a skin fixation section 12, a hemostat clamping section 13, and a drainage tube connector 14 connected in order.

Wherein, soft needle 11 is the pipe structure of flexible plastics making, when carrying out ascites drainage, soft needle 11 inserts patient's peritoneal cavity, because soft needle 11 is very soft, even change the position many times, also can not stab patient's intestinal canal and viscera, has eliminated the potential safety hazard that adopts traditional steel needle drainage. In addition, the side holes 111 are distributed on the circumference of the soft needle 11, and the side holes 111 are arranged on the soft needle 11, so that the ascites drainage efficiency can be remarkably improved, the ascites can be sucked more cleanly, and the treatment effect can be improved.

Further, each side hole 111 is uniformly distributed on the soft needle 11 along the circumferential direction, so that not only can the efficiency of ascites drainage be further improved, but also the ascites can be more thoroughly sucked. In this embodiment, each side hole 111 is provided at one end of the soft needle 11 near its needle tip to facilitate aspiration of ascites. Moreover, the end face of the soft needle 11 far away from the skin fixing section 12 is a circular smooth plane, so that the intestinal tract and viscera of a patient can be better prevented from being damaged.

The hemostatic forceps clamping section 13 is also of a cylindrical structure made of flexible plastic, and the hemostatic forceps clamping section 13 is arranged, so that the hemostatic forceps can be conveniently used for clamping, and meanwhile, the hemostatic forceps can be used for rapidly blocking during peritoneal drainage through the flexible plastic.

The two ends of the skin fixing section 12 are respectively communicated with the soft needle 11 and the hemostatic forceps holding section 13, and the diameter of the skin fixing section 12 gradually increases from the end connected with the soft needle 11 to the end connected with the hemostatic forceps holding section 13. Specifically speaking, skin fixed section 12 includes fixed section inlayer 121 and the fixed section ring spare 122 of overcoat on fixed section inlayer 121, and fixed section inlayer 121 adopts flexible plastics one shot forming with soft needle 11 and hemostatic forceps centre gripping section 13, and structural strength is higher, and the leakproofness is better, can effectively avoid taking place the problem of weeping when ascites drainage. Meanwhile, the fixed section ring 122 is integrally formed with the fixed section inner layer 121 by adopting hard plastic through a double-shot injection molding process, so that the connection reliability is high, the loosening problem can not occur, the harder fixed section ring 122 can be conveniently and reliably fixed with the skin of a patient, and more damage and inflammatory reaction to the soft tissue of the skin of the patient caused by repeated puncture of a pure steel needle are avoided. In this embodiment, the outer peripheral surface of the fixing segment ring 122 has a conical surface structure, so that the fixing can be performed better.

The drainage tube joint 14 is arranged at one end of the hemostatic forceps holding section 13 away from the hemostatic forceps holding section 13. Specifically, the drainage tube joint 14 is also integrally formed with the hemostatic forceps clamping section 13 by adopting hard plastic through a double-shot molding process, so that the connection reliability is high, and the loosening problem can not occur. Further, one end of the drainage tube connector 14 connected with the hemostatic forceps clamping section 13 forms a ring groove which is matched with the hemostatic forceps clamping section 13, and the hemostatic forceps clamping section 13 is embedded in the ring groove, so that the connection reliability of the drainage tube connector 14 and the hemostatic forceps clamping section 13 can be further improved.

Referring to fig. 2 and fig. 5 to 7, an external thread structure 141 is integrally formed on the outer circumferential surface of the drainage tube joint 14, and the end cap 2 is detachably mounted on the abdominal cavity drainage tube 1. Specifically, the end cap 2 has a connection sleeve 21 adapted to the drain connector 14, and an internal thread structure 211 screw-fitted with the external thread structure 141 is provided on an inner circumferential surface of the connection sleeve 21, so that the end cap 2 can be easily installed and removed by the internal thread structure 211 and the external thread structure 141.

One end of the connecting sleeve 21, which is far away from the drainage tube joint 14, is integrally provided with a limiting disc 22, the center position of the limiting disc 22 is provided with a rubber plug mounting hole 221 with the diameter larger than that of the steel needle 31, a rubber sealing plug 222 which can be pierced by the steel needle 31 is arranged in the rubber plug mounting hole 221, and after the steel needle 31 exits from the rubber sealing plug 222, the rubber sealing plug 222 can still reliably seal the rubber plug mounting hole 221, so that through the structure, not only can the reliable connection of the drainage tube joint 14 and the end cover 2 be ensured, but also the tightness is good, and the piercing of the steel needle 31 is facilitated.

Moreover, because the peritoneal cavity puncture patient often has an infectious factor, the resistance between the steel needle 31 and the rubber sealing plug 222 is large in the needle withdrawing process of the long and sharp steel needle 31, so that the doctor pulls out the steel needle 31 from the rubber sealing plug 222 instantly, the needle tip 311 of the steel needle 31 may scratch the skin due to sudden force loss, and even infection is caused. Therefore, in this embodiment, the safety ring 23 is integrally formed on the side of the limiting disc 22 away from the connecting sleeve 21, the magnet 24 capable of adsorbing the steel needle 31 is mounted on the inner wall of the safety ring 23, when the needle tip 311 of the steel needle 31 exits the rubber sealing plug 222, the steel needle 31 is adsorbed by the magnet 24 on the safety ring 23, and then the steel needle 31 and the magnet 24 are separated by slightly applying force, so that needle withdrawal can be safely completed, thereby avoiding stabbing a doctor due to force loss when the needle tip 311 is pulled out, and avoiding occupational exposure.

Referring to fig. 1-3, the puncture needle 3 comprises a steel needle 31 adapted to the soft needle 11 and an operating head 32 mounted at one end of the steel needle 31 far away from the abdominal cavity drainage tube 1, wherein the end of the steel needle 31 inserted into the abdominal cavity drainage tube 1 is a gradually reduced needle tip 311, and the skin of a patient can be easily pierced through the needle tip 311, so that the pain of the patient is reduced. Also, the diameter of the operating head 32 is very large, at least greater than the inner diameter of the safety ring 23, so as to facilitate the handling operation by the physician. Therefore, before the patient is punctured, the needle tip 311 of the steel needle 31 is inserted into the abdominal cavity drainage tube 1 after penetrating the end cover 2, and the needle tip 311 is penetrated out of the soft needle 11, while the operation head 32 is abutted with the end cover 2; after the puncture of the patient is completed, the steel needle 31 is withdrawn back sequentially from the abdominal cavity drainage tube 1 and the end cap 2. Finally, the end cap 2 is removed from the drainage tube joint 14, and the ascites can be drained by connecting the external thread structure 141 with a corresponding connecting structure of the negative pressure bag.

Further, one end that the end cover 2 was kept away from to the operation head 32 is provided with the indicator 33 that targets in place, and the indicator 33 that targets in place is built-in to have the test paper 331 that discolours, and the one end that the steel needle 31 inserted the operation head 32 and the contact of test paper 331 that discolours, can discolour rapidly after the test paper 331 that discolours contacts ascites, and the shell of indicator 33 that targets in place is usually designed to be colorless transparent, consequently through the setting of test paper 331 that discolours, can remind the doctor that the puncture targets in place very first time, avoids causing the injury to the patient because of sharp puncture is too dark.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (9)

1. A disposable abdominal cavity puncture needle, which is characterized in that: comprises an abdominal cavity drainage tube (1), an end cover (2) and a puncture needle (3);

the abdominal cavity drainage tube (1) comprises a soft needle (11), a skin fixing section (12), a hemostatic forceps clamping section (13) and a drainage tube connector (14) which are sequentially connected, wherein the soft needle (11) is of a circular tube structure made of flexible plastics, side holes (111) are distributed in the circumferential direction of the soft needle (11), the hemostatic forceps clamping section (13) is of a cylindrical structure made of flexible plastics, two ends of the skin fixing section (12) are respectively communicated with the soft needle (11) and the hemostatic forceps clamping section (13), the diameter of the skin fixing section (12) gradually increases from one end connected with the soft needle (11) to one end connected with the hemostatic forceps clamping section (13), and the drainage tube connector (14) is arranged at one end, far away from the hemostatic forceps clamping section (13), of the hemostatic forceps clamping section (13;

the end cover (2) is detachably arranged on the abdominal cavity drainage tube (1), the puncture needle (3) comprises a steel needle (31) matched with the soft needle (11) and an operation head (32) arranged at one end, far away from the abdominal cavity drainage tube (1), of the steel needle (31), and one end, inserted into the abdominal cavity drainage tube (1), of the steel needle (31) is a needle point (311) which is gradually reduced;

before the patient is punctured, a needle point (311) of the steel needle (31) is inserted into the abdominal cavity drainage tube (1) after penetrating through the end cover (2), the needle point (311) outwards penetrates out of the soft needle (11), and meanwhile, the operation head (32) is abutted with the end cover (2); after the puncture of the patient is completed, the steel needle (31) is withdrawn backwards from the peritoneal drainage tube (1) and the end cover (2) in sequence.

2. The disposable abdominal cavity puncture needle according to claim 1, wherein: the side holes (111) are uniformly distributed at one end of the soft needle (11) close to the needle head along the circumferential direction.

3. The disposable abdominal cavity puncture needle according to claim 1, wherein: the skin fixing section (12) comprises a fixing section inner layer (121) and a fixing section ring piece (122) sleeved on the fixing section inner layer (121), the soft needle (11) and the hemostatic forceps clamping section (13) are formed by adopting flexible plastics in one step, and the fixing section ring piece (122) and the drainage tube connector (14) are formed by adopting hard plastics and integrally forming the fixing section inner layer (121), the soft needle (11) and the hemostatic forceps clamping section (13) through a double-color injection molding process.

4. A disposable abdominal cavity puncture needle according to claim 3, characterized in that: the outer peripheral surface of the fixed section ring (122) is of a conical surface structure.

5. A disposable abdominal cavity puncture needle according to claim 3, characterized in that: an external thread structure (141) is integrally formed on the outer peripheral surface of the drainage tube connector (14), the end cover (2) is provided with a connecting sleeve (21) matched with the drainage tube connector (14), and the inner peripheral surface of the connecting sleeve (21) is provided with an internal thread structure (211) in threaded fit with the external thread structure (141).

6. The disposable abdominal cavity puncture needle according to claim 5, wherein: one end of the connecting sleeve (21) far away from the drainage tube joint (14) is integrally formed with a limiting disc (22), a rubber plug mounting hole (221) with the diameter larger than that of the steel needle (31) is formed in the center of the limiting disc (22), and a rubber sealing plug (222) which can be pierced by the steel needle (31) is arranged in the rubber plug mounting hole (221).

7. The disposable abdominal cavity puncture needle according to claim 6, wherein: one side of the limiting disc (22) far away from the connecting sleeve (21) is integrally formed with a safety ring (23), and a magnet (24) capable of adsorbing the steel needle (31) is arranged on the inner wall of the safety ring (23).

8. The disposable abdominal cavity puncture needle according to claim 1, wherein: one end of the operating head (32) far away from the end cover (2) is provided with a in-place indicator (33), a color-changing test paper (331) is arranged in the in-place indicator (33), and one end of the steel needle (31) inserted into the operating head (32) is in contact with the color-changing test paper (331).

9. The disposable abdominal cavity puncture needle according to claim 1, wherein: the end face of one end of the soft needle (11) far away from the skin fixing section (12) is a smooth plane which is circular.