Abdominal fluid infusion puncture needle set

Abstract

The utility model provides an abdominal cavity fluid infusion puncture needle set, and particularly relates to the field of medical equipment. In order to solve the problems that a puncture needle is fixed unstably, a needle body is too long, consequently, the gravity center deviates backwards, operation is complex and the like, the abdominal cavity fluid infusion puncture needle set comprises a retraction type abdominal cavity fluid infusion puncture needle, and the retraction type abdominal cavity fluid infusion puncture needle comprises an inner needle and an outer needle arranged outside the inner needle in a sleeving mode. The tail end of the retraction type abdominal cavity fluid infusion puncture needle is sleeved with a pasting type fixing buckle used for fixing the retraction type abdominal cavity fluid infusion puncture needle to the abdominal cavity puncture position. According to the device, the design that the retraction type abdominal cavity fluid infusion puncture needle is combined with the pasting type fixing buckle is adopted, automatic retraction and stable fixing of the puncture needle are achieved, the operation process is simplified, and the safety and convenience of the puncture process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical equipment, concretely relates to an abdominal cavity liquid supplementing puncture needle set. BACKGROUND

[0002] In clinical treatment, abdominal puncture is a key operation, which is widely used in the treatment of abdominal hydrops, abdominal dialysis and emergency fluid infusion, etc. For patients with abdominal hydrops, puncture can quickly drain excess fluid and relieve abdominal pain. In abdominal dialysis, by injecting dialysate, it helps to remove toxins in the body. In emergency situations, puncture quickly establishes a fluid channel for patients with blood loss or dehydration, which is an important means to rescue patients with hemorrhagic shock. In special environments such as battlefield, the portability and stability of abdominal puncture are particularly important. Because of the complex battlefield environment and time urgency, the puncture needle needs to be designed simple and easy to use, and has an automatic retraction function to prevent the tip of the puncture needle from shifting or directly damaging internal organs, ensuring quick and safe completion of treatment and improving the survival rate of wounded personnel.

[0003] However, the traditional abdominal puncture needle has some problems in actual use. First, the traditional puncture needle usually lacks effective fixing device, which leads to displacement during puncture, affecting the effect of fluid infusion, and even causing tissue damage. In addition, the retraction function of the puncture needle is not perfect, which can easily cause secondary damage to the surrounding tissues after puncture. At the same time, the design of the needle body of the traditional puncture needle is complicated, which leads to a large overall weight, making it difficult to adapt to portable operation requirements, especially in special environments such as battlefield and emergency care. UTILITY MODEL CONTENTS

[0004] In view of the above problems of unstable puncture needle fixation, too long needle body leading to rear gravity center and complex operation, the utility model aims to provide an abdominal cavity liquid supplementing puncture needle set. The device of the utility model combines a retractable abdominal cavity liquid supplementing puncture needle with a paste type fixing buckle, realizes automatic retraction and stable fixation of the puncture needle, simplifies the operation process, and improves the safety and convenience of the puncture process.

[0005] The main idea of the technical solution adopted by the utility model is that the combination design of the retractable abdominal cavity liquid supplementing puncture needle and the paste type fixing buckle realizes automatic retraction and stable fixation of the puncture needle, thereby improving the safety and convenience of the puncture process. Specifically, the puncture needle includes an inner needle and an outer needle. The inner needle is equipped with a spring assembly and can automatically retract after puncture, reducing secondary damage to tissues. The outer needle is used to protect the inner needle and provide additional support to ensure the stability of the puncture process. The paste type fixing buckle is made of flexible material. Through the cooperation of the fixing seat and the fixing buckle, combined with the adjustment of the buckle, the fixing force is adjusted to ensure that the puncture needle remains stable in various environments. The length of the needle body is shortened to 80mm, and aluminum alloy material is selected for manufacturing, which significantly reduces the overall weight and improves portability and operation convenience.

[0006] The technical purpose of the utility model is realized through the following technical scheme:

[0007] A peritoneal cavity liquid supplementing puncture needle set, comprising a retractable peritoneal cavity liquid supplementing puncture needle, characterized in that the retractable peritoneal cavity liquid supplementing puncture needle comprises an inner needle and an outer needle sleeved outside the inner needle, and a pasting type fixing buckle is sleeved at the tail end of the retractable peritoneal cavity liquid supplementing puncture needle and used to fix the retractable peritoneal cavity liquid supplementing puncture needle at a peritoneal cavity puncture position.

[0008] The inner needle comprises a liquid infusion connecting joint, a threaded sleeve and a spring assembly are sequentially sleeved outside the liquid infusion connecting joint, and an inner needle needle head is connected at a liquid infusion interface inside the liquid infusion connecting joint.

[0009] In order to realize the above technical scheme, the pasting type fixing buckle comprises a fixing base pasted on the skin surface of the abdomen and a fixing buckle arranged on the fixing base and used to lock the position of the retractable peritoneal cavity liquid supplementing puncture needle.

[0010] Further, a first matching groove is arranged on the surface of the fixing base, and a second matching groove is correspondingly arranged on the fixing buckle.

[0011] Further, an adjusting buckle used to adjust the fastening degree of the fixing buckle is arranged on the periphery of the fixing buckle, and adjusting teeth meshing with each other at left and right ends are arranged on the adjusting buckle.

[0012] Still further, the outer needle comprises a spring sleeve and an outer needle needle head connected at the end of the spring sleeve, and the spring sleeve is matched with the threaded sleeve and wrapped outside the spring assembly.

[0013] By adopting the above technical scheme, the utility model has the following technical effects:

[0014] By arranging the retractable inner needle and the spring assembly, the inner needle can be automatically retracted after the puncture needle completes the puncture operation, thereby significantly reducing the secondary damage risk of the inner needle needle head to the surrounding tissues. In addition, the retraction mechanism ensures that medical staff can quickly and safely complete the puncture in an emergency, avoids problems such as infection or bleeding caused by improper fixation, and further improves the reliability and effectiveness of clinical operation.

[0015] By arranging the pasting type fixing buckle, the stable fixation of the puncture needle during the whole puncture process is ensured, and the displacement of the puncture needle position caused by patient movement or external vibration is prevented. The pasting type fixing buckle is made of flexible material and can be closely attached to the skin, thereby reducing the stimulation of the patient during the puncture process. The stability and reliability of the fixing buckle not only improve the accuracy of the puncture operation, but also provide a more comfortable operation environment for medical staff during subsequent treatment, thereby ensuring the smoothness of the whole treatment process. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows.

[0017] Figure 1 It is a whole structure schematic view of the abdominal cavity liquid supplementing puncture needle set of the present application.

[0018] Figure 2 It is a structure schematic view of the retractable abdominal cavity liquid supplementing puncture needle of the present application.

[0019] Figure 3 It is a structure schematic view of the inner needle and the outer needle of the present application.

[0020] Figure 4 It is a structure schematic view of the adhesive fixing buckle of the present application.

[0021] Figure 5 It is an exploded view of the adhesive fixing buckle of the present application.

[0022] In the figure, 1-inner needle; 11-infusion connecting joint; 12-threaded sleeve; 13-spring assembly; 131-spring; 132-spring stopper; 14-inner needle needle head; 2-outer needle; 21-spring sleeve; 22-outer needle needle head; 3-adhesive fixing buckle; 31-fixing seat; 311-first matching groove; 32-fixing buckle; 321-second matching groove; 33-adjusting buckle; 331-adjusting tooth. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments, not all the embodiments.

[0024] Reference Figures 1-5 The present application discloses an abdominal cavity liquid supplementing puncture needle set, comprising a retractable abdominal cavity liquid supplementing puncture needle, characterized in that the retractable abdominal cavity liquid supplementing puncture needle comprises an inner needle 1 and an outer needle 2 sleeved outside the inner needle 1, and the retractable abdominal cavity liquid supplementing puncture needle is sleeved with an adhesive fixing buckle 3 at the end for fixing the retractable abdominal cavity liquid supplementing puncture needle at the abdominal cavity puncture position.

[0025] Specifically, the outer needle 2 is sleeved outside the inner needle 1 for protecting the inner needle 1 and providing support. After the puncture needle punctures the abdominal cavity, the inner needle 1 can be automatically retracted after use, thereby reducing the risk of damage to the tissue by the inner needle needle head 14.

[0026] Specifically, the inner needle 1 includes an infusion connection joint 11, a threaded sleeve 12, a spring assembly 13, and an inner needle needle head 14 (a blunt head). The infusion connection joint 11 is externally sleeved with the threaded sleeve 12 and the spring assembly 13 in sequence, and an inner needle needle head 14 is connected at an inner infusion interface of the infusion connection joint 11.

[0027] Specifically, the infusion connection joint 11 is made of ABS white resin material, has good corrosion resistance and impact resistance, and is suitable for use in medical environments. The infusion connection joint 11 has a cylindrical shape, one end of which is provided with a standard luer connector for connecting with an external infusion device to ensure smooth liquid supplementing; the other end is connected with the inner needle needle head 14 through an inner infusion interface. The infusion connection joint 11 serves as the connection hub of the puncture needle, and is externally sleeved with the threaded sleeve 12 and the spring assembly 13 to realize stable assembly and protection functions.

[0028] Specifically, the threaded sleeve 12 is also made of ABS white resin material, has good mechanical strength and chemical resistance. The threaded sleeve 12 is sleeved on the outside of the infusion connection joint 11 and is fixedly connected with the infusion connection joint 11 through an internal threaded structure to ensure the structural firmness during operation. The threaded sleeve 12 is designed to be compact and light, suitable for use in abdominal puncture, and ensures that the overall weight of the puncture needle is less than 8 grams for portable use.

[0029] As Figure 3 , the spring assembly 13 includes a spring 131 and a spring stopper 132. The spring 131 is made of stainless steel material, has excellent elastic recovery ability and corrosion resistance, and can provide sufficient retraction force after puncture. The outer diameter of the spring 131 matches the inner diameter of the threaded sleeve 12, and can be sleeved at a proper position outside the threaded sleeve 12. The spring 131 is elastically reset to ensure that the inner needle 1 can automatically retract to a safe position after puncture, reducing the risk of secondary damage to surrounding tissues.

[0030] Specifically, the spring stopper 132 is made of ABS white resin material and is installed on the outside of the end of the infusion connection joint 11 to fix the working position of the spring 131 and prevent the spring 131 from shifting during use. The spring stopper 132 is connected with the infusion connection joint 11 through an embedded design and is fixed by sealing glue to ensure the sealing and safety of the structure.

[0031] Specifically, the inner needle needle head 14 is made of 316 stainless steel material and has a blunt design to reduce tissue damage during puncture and improve safety. The inner needle needle head 14 is designed to be connected with the inner infusion interface of the infusion connection joint 11 to ensure smooth flow of liquid during liquid supplementing. The inner needle needle head 14 is designed to have a diameter of 3 mm, which is consistent with the inner diameter of the infusion channel, facilitating liquid delivery while ensuring compactness of the structure.

[0032] Specifically, the outer needle 2 includes a spring sleeve 21 and an outer needle needle head 22 connected to the end of the spring sleeve 21. The spring sleeve 21 is matched with the threaded sleeve 12 and wrapped outside the spring assembly 13. The spring sleeve 21 is made of ABS white resin material, which has good impact resistance and chemical resistance, can effectively protect the inner needle 1 and the spring assembly 13 during puncture, and prolong the service life of the assembly.

[0033] Specifically, the spring sleeve 21 is a hollow cylinder, the inner diameter of which matches the outer diameter of the threaded sleeve 12 of the inner needle 1, so as to ensure that it is tightly matched with the threaded sleeve 12 after assembly and has stable structure. The length of the spring sleeve 21 is designed to be slightly longer than that of the threaded sleeve 12 of the inner needle 1, so as to ensure that it can completely wrap outside the spring assembly 13 and provide sufficient support during puncture operation.

[0034] It is worth noting that one end of the spring sleeve 21 is provided with a structural interface connected with the outer needle needle head 22. The outer needle needle head 22 is installed in place by embedding or sealing glue fixing method, so as to ensure that the puncture needle has stability and safety during puncture and liquid supplement.

[0035] Specifically, the outer needle needle head 22 is made of 316 stainless steel, which has excellent corrosion resistance and high mechanical strength and is suitable for medical environment. The outer needle needle head 22 has a sharp head design, which can provide accurate cutting force during abdominal puncture, reduce resistance to tissue, and improve puncture efficiency. The design diameter of the outer needle needle head 22 is 3 mm, so as to be consistent with the diameter of the sleeve of the inner needle 1, thereby ensuring the sealing of the channel and the stability of the liquid flow during puncture. The length of the outer needle needle head 22 is optimized, which can effectively penetrate into the abdominal cavity and ensure that it is firmly connected with the spring sleeve 21, so as to reduce the shaking and loosening phenomenon during use.

[0036] Specifically, during assembly, the spring sleeve 21 is matched with the threaded sleeve 12 of the inner needle 1 and is wrapped outside the spring assembly 13. Through the wrapping effect of the spring sleeve 21, the spring assembly 13 is effectively protected and supported, so as to ensure that the retraction function of the inner needle 1 can be smoothly performed after puncture is completed, and unnecessary damage to the surrounding tissue caused by exposure of the spring assembly 13 is avoided.

[0037] As shown in the drawings, Figure 4 The adhesive fixing buckle 3 includes a fixing seat 31 adhered to the surface of the abdominal skin and a fixing buckle 32 provided on the fixing seat 31 and integrally formed with the fixing seat 31. The fixing buckle 32 is used for locking the position of the retractable abdominal cavity liquid supplement puncture needle. The surface of the fixing seat 31 is provided with a first matching groove 311, and the fixing buckle 32 is correspondingly provided with a second matching groove 321. The fixing buckle 32 is provided with an adjusting buckle 33 around the fixing buckle 32 for adjusting the fastening degree of the fixing buckle 32. The adjusting buckle 33 is provided with adjusting teeth 331 meshing with each other at left and right ends.

[0038] Specifically, the fixing seat 31 is made of medical-grade flexible material, such as silicone or flexible plastic, which can be pasted on the surface of the abdominal skin. Its design takes into account the fit with the skin to ensure the comfort of the fixing device and avoid irritation to the skin for a long time. The fixing seat 31 is a flat structure, and the surface is provided with a first matching groove 311, which is a linear or annular groove, used to match with the second matching groove 321 on the fixing buckle 32 to form a firm locking structure. The size and shape of the first matching groove 311 are designed to accurately match the second matching groove 321, ensuring that there is no sliding or loosening after the fixing buckle 32 is installed.

[0039] Specifically, the fixing buckle 32 is made of ABS or nylon material, which has high mechanical strength and durability. The structure of the fixing buckle 32 is circular or polygonal flat design, which can firmly cover the fixing seat 31. The fixing buckle 32 is provided with a second matching groove 321 corresponding to the first matching groove 311 of the fixing seat 31. When the fixing buckle 32 and the fixing seat 31 are matched with each other, the first matching groove 311 and the second matching groove 321 are simultaneously contracted inward to fix the position of the retractable abdominal fluid infusion puncture needle. The fixing buckle 32 is designed as a hollow structure, and the inner diameter is matched with the diameter of the puncture needle, which can fix the retractable abdominal fluid infusion puncture needle at the abdominal puncture position, and at the same time make the puncture needle stable during the infusion process.

[0040] Specifically, the adjusting buckle 33 surrounds the periphery of the fixing buckle 32, which is used to adjust the fastening degree of the fixing buckle 32, so that the user can adjust the fixing strength according to the actual situation, so as to ensure the safety and comfort of the puncture needle. The adjusting buckle 33 is made of ABS resin or other materials with high plasticity and high plasticity, and the shape is circular ring, and the inside is provided with adjusting teeth 331 meshing with each other at left and right ends. The adjusting teeth 331 can adjust the fastening state of the adjusting buckle 33 by rotating, so as to realize the fine adjustment of the fastening degree of the fixing buckle 32.

[0041] It is worth noting that the diameter of the adjusting buckle 33 matches the fixing buckle 32, and the inner side is meshed with the outer edge of the fixing buckle 32, which ensures that the adjusting buckle 33 will not easily come off during adjustment, and at the same time can be stably fixed at the required fastening position. The adjusting teeth 331 are designed as thin teeth structure, and the tooth height is moderate, which is convenient for accurate adjustment of the fixing force.

[0042] The working process of the embodiment is as follows:

[0043] Check the components of the abdominal fluid infusion puncture needle set to ensure that the inner needle 1, the outer needle 2 and the pasting fixing buckle 3 are intact and in an operable state. The fixing seat 31 and the fixing buckle 32 integrally formed with the fixing seat 31 of the pasting fixing buckle 3 are pasted on the skin at the puncture position of the abdomen, and the fixing seat 31 is tightly attached to the skin to provide a stable basis for the puncture operation.

[0044] The inner needle 1 is pressed against the abdomen, and then the inner needle 1 is forced downward with the threaded sleeve 12, driving the outer needle 2 to move downward, and the outer needle needle head 22 is pierced into the abdominal cavity. After completing the puncture, the second matching groove 321 of the fixing buckle 32 and the first matching groove 311 of the fixing seat 31 are inwards contracted through the adjusting buckle 33, locking the position of the puncture needle, and ensuring that the puncture needle does not move during the liquid supplement process.

[0045] Then the infusion connection joint 11 is connected with the external infusion equipment, ensuring the smoothness of the liquid supplement channel. The infusion equipment is started, and the abdominal cavity liquid supplement is started. After the liquid supplement process is completed, the infusion connection joint 11 is disconnected with the infusion equipment. The adjusting buckle 33 and the fixing buckle 32 are gently released, and the whole puncture needle device is taken off, the puncture site is cleaned and properly disinfected.

[0046] It should be clear that the above detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the utility model.

Claims

1. A peritoneal fluid replacement puncture needle set comprising a retractable peritoneal fluid replacement puncture needle, characterized by, The retractable abdominal cavity liquid supplementing puncture needle comprises an inner needle (1) and an outer needle (2) sleeved outside the inner needle (1), and a pasting type fixing buckle (3) is sleeved at the end of the retractable abdominal cavity liquid supplementing puncture needle to fix the retractable abdominal cavity liquid supplementing puncture needle at the abdominal cavity puncture position. The inner needle (1) comprises a liquid infusion connecting joint (11), a threaded sleeve (12) and a spring assembly (13) are sequentially sleeved outside the liquid infusion connecting joint (11), and an inner needle needle head (14) is connected at a liquid infusion interface inside the liquid infusion connecting joint (11).

2. The abdominal fluid replacement puncture needle set according to claim 1, wherein The pasting type fixing buckle (3) comprises a fixing base (31) pasted on the skin surface of the abdomen and a fixing buckle (32) arranged on the fixing base (31) and used for locking the position of the retractable abdominal cavity liquid supplementing puncture needle.

3. The abdominal fluid replacement puncture needle set according to claim 2, wherein A first matching groove (311) is arranged on the surface of the fixing base (31), and a second matching groove (321) is correspondingly arranged on the fixing buckle (32).

4. The abdominal fluid replacement puncture needle set according to claim 3, wherein An adjusting buckle (33) for adjusting the fastening degree of the fixing buckle (32) is arranged on the periphery of the fixing buckle (32), and adjusting teeth (331) meshing with each other are arranged on the adjusting buckle (33).

5. The abdominal fluid replacement puncture needle set according to claim 1, wherein The outer needle (2) comprises a spring sleeve (21) and an outer needle needle head (22) connected at the end of the spring sleeve (21), and the spring sleeve (21) is matched with the threaded sleeve (12) and wrapped outside the spring assembly (13).

Images