Sacral canal anesthesia puncture indwelling suite
By designing a Y-shaped delivery structure for the indwelling cannula and extension catheter made of a supportive flexible material, the problems of easy pressure kinking and skin injury during sacral anesthesia puncture and placement were solved, thus achieving safe delivery of anesthetic solutions.
Patent Information
- Application Number
- CN202422544456.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-22
AI Technical Summary
Existing sacral canal anesthesia catheter placement methods are prone to pressure kinking, and the enlarged structure at the tip of the indwelling needle may cause skin pressure injuries.
A sacral canal anesthesia puncture indwelling kit was designed, comprising an indwelling cannula, an extension catheter, a catheter connector, and a puncture needle core. The indwelling cannula and the extension catheter are made of a supportive flexible material. Anesthetic solution is injected through a Y-shaped delivery structure. The length of the puncture needle core is greater than that of the indwelling cannula to avoid pressure kinking of the indwelling cannula, and the flexible material reduces skin pressure injury.
It effectively prevents the indwelling cannula from being kinked by pressure, reduces the risk of pressure injury to the skin, and achieves safe and reliable delivery of anesthetic solutions.
Smart Images
Figure CN223504299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical technology, and in particular to a sacral canal anesthesia puncture and indwelling kit. Background Technology
[0002] In pediatric surgery, caudal anesthesia is a commonly used method of anesthesia, which can not only meet the needs of surgical anesthesia but also be used for postoperative analgesia. However, existing caudal anesthesia catheter insertion needles have some shortcomings in use. For example, the catheter is easily kinked by pressure, affecting the delivery of medication; and the enlarged structure at the tip of the indwelling catheter can cause pressure sores on the skin during catheter placement.
[0003] In other words, how to provide an improved sacral canal anesthesia puncture and indwelling kit to achieve the technical effect of preventing pressure kinking and indwelling pressure injury is a technical problem that urgently needs to be solved in this field. Utility Model Content
[0004] In view of the above-mentioned problems, the present invention aims to provide a sacral canal anesthesia puncture and indwelling kit, which solves at least one of the above-mentioned technical problems.
[0005] This utility model provides a sacral canal anesthesia puncture and indwelling kit, which includes: an indwelling cannula, an extension catheter, a catheter connector, and a puncture needle core. The indwelling cannula has a delivery channel extending through it along its length. The puncture needle core is movably disposed in the delivery channel. A connection hole communicating with the delivery channel is provided on the side wall of the indwelling cannula. One end of the extension catheter is fixedly connected to the connection hole, and the other end of the extension catheter is detachably connected to one end of the catheter connector. The length of the puncture needle core is greater than the length of the indwelling cannula.
[0006] Preferably, the puncture needle core has an injection channel, the puncture needle core includes a puncture needle body and a handheld needle tip, one end of the puncture needle body has a puncture tip, the other end of the puncture needle body is fixedly connected to the handheld needle tip, the outer diameter of the handheld needle tip is larger than the outer diameter of the puncture needle body, and the injection channel is provided through the puncture needle body and the handheld needle tip.
[0007] Preferably, a silicone soft plug is built into the external end of the indwelling cannula, and the puncture tip of the puncture needle passes through the silicone soft plug and the delivery channel in sequence before extending out of the internal end of the indwelling cannula.
[0008] Preferably, the distance from the connecting hole to the outer end of the indwelling sleeve is less than the distance from the connecting hole to the insertion end of the indwelling sleeve.
[0009] Preferably, the catheter connector includes a catheter connection end and a syringe connection end. The catheter connection end is provided with a catheter limiting groove, and the syringe connection end is provided with a syringe connection groove. The catheter limiting groove and the syringe connection groove are connected. The other end of the extension catheter is inserted into the catheter limiting groove and detachably connected to the catheter connector. The syringe connection groove is movably connected to an external syringe.
[0010] Preferably, the indwelling cannula and the extension catheter are integrally formed.
[0011] Preferably, the insertion end of the indwelling sleeve is configured as a frustum structure with a gradually decreasing radius.
[0012] Preferably, the outer diameter of both the indwelling cannula and the extension catheter is 0.9 mm.
[0013] Preferably, the indwelling cannula and the extension catheter are made of medical polyamide or polyether block copolymer.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] Specifically, this utility model provides a sacral canal anesthesia puncture and indwelling kit, including an indwelling cannula, an extension catheter, a catheter connector, and a puncture needle core. The indwelling cannula has a delivery channel extending through it along its length. The puncture needle core is movably disposed in the delivery channel, and the length of the puncture needle core is greater than the length of the indwelling cannula. A connection hole communicating with the delivery channel is provided on the side wall of the indwelling cannula. One end of the extension catheter is fixedly connected to the connection hole, so that the cavity inside the extension catheter communicates with the delivery channel inside the indwelling cannula. The other end of the extension catheter is detachably connected to one end of the catheter connector. The other end of the catheter connector is connected to an external syringe to inject anesthetic solution into the extension catheter through the syringe. This application utilizes an indwelling cannula and an extension catheter to form a Y-shaped delivery structure. The cannula is inserted into the patient's body through a puncture needle core, from the insertion end to the connection hole, and left in place. Then, anesthetic is injected into the indwelling cannula through the extension catheter. This shortens the length of the indwelling cannula and reduces the risk of pressure kinking. Furthermore, both the indwelling cannula and the extension catheter are made of supportive flexible materials, further preventing pressure kinking. The external end of the indwelling catheter does not require external connectors or indwelling needles, thus avoiding large or rigid expansion structures and preventing pressure injuries to the skin.
[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the sacral canal anesthesia puncture and indwelling kit in an embodiment of this application;
[0019] Figure 2 This is a schematic diagram of the puncture needle core in the embodiments of this application.
[0020] Figure label:
[0021] 1. Indwelling cannula;
[0022] 11. Connecting holes;
[0023] 12. Frustum structure;
[0024] 2. Extension catheter;
[0025] 3. Conduit connector;
[0026] 4. Puncture needle core;
[0027] 41. Puncture needle body;
[0028] 411. Puncture tip;
[0029] 42. Holding the needle;
[0030] 5. Silicone soft plug. Detailed Implementation
[0031] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art are within the scope of protection of this utility model; wherein the keyword "and / or" involved in this embodiment indicates two situations, and or. In other words, A and / or B mentioned in the embodiments of this specification indicates two situations, A and B, and A or B, describing three states of A and B. For example, A and / or B means: only A is included and not B; only B is included and not A; and A and B are included.
[0032] Furthermore, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component present.
[0033] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.
[0034] Example 1
[0035] Please see Figure 1-2 As shown, specifically, in this embodiment of the sacral canal anesthesia puncture and indwelling kit, the sacral canal anesthesia puncture and indwelling kit provided in this application is used for sacral canal anesthesia in pediatric surgery. Specifically, it includes an indwelling cannula 1, an extension catheter 2, a catheter connector 3, and a puncture needle core 4. The indwelling cannula 1 has a delivery channel extending through it along its length. The puncture needle core 4 is movably disposed in the delivery channel. A connection hole 11 communicating with the delivery channel is provided on the side wall of the indwelling cannula 1. One end of the extension catheter 2 is fixedly connected to the connection hole 11, and the other end of the extension catheter 2 is detachably connected to one end of the catheter connector 3. The length of the puncture needle core 4 is greater than the length of the indwelling cannula 1.
[0036] Specifically, this utility model embodiment provides a sacral canal anesthesia puncture and indwelling kit, including an indwelling cannula 1, an extension catheter 2, a catheter connector 3, and a puncture needle core 4. The indwelling cannula 1 has a delivery channel extending through it along its length. The puncture needle core 4 is movably disposed in the delivery channel, and the length of the puncture needle core 4 is greater than the length of the indwelling cannula 1. A connection hole 11 communicating with the delivery channel is provided on the side wall of the indwelling cannula 1. One end of the extension catheter 2 is fixedly connected to the connection hole 11, so that the cavity inside the extension catheter 2 communicates with the delivery channel inside the indwelling cannula 1. The other end of the extension catheter 2 is detachably connected to one end of the catheter connector 3. The other end of the catheter connector 3 is connected to an external syringe to inject anesthetic solution into the extension catheter 2 through the syringe. This embodiment of the application sets up an indwelling cannula 1 and an extension catheter 2 to form a Y-shaped delivery structure. The cannula 1, from the insertion end to the connection hole 11, is inserted into the patient's body through the puncture needle core 4 and left in place. Then, anesthetic solution is injected into the indwelling cannula 1 through the extension catheter 2. This can shorten the length of the indwelling cannula 1 and reduce the risk of pressure kinking. At the same time, both the indwelling cannula 1 and the extension catheter 2 are made of flexible material with support, which further prevents pressure kinking. Moreover, the external end of the indwelling catheter does not need to be connected to other connectors or indwelling needles, so there is no large or hard expansion structure, which can avoid pressure injury to the skin.
[0037] In practical use, this application inserts the indwelling cannula 1 into the patient's sacral canal through the puncture needle core 4, so that the tube body from the insertion end of the indwelling cannula 1 to the connection hole 11 is inserted into the patient's body. Then the puncture needle core 4 can be removed, and the medication can be injected into the extension catheter 2 through the catheter connector 3 using a syringe.
[0038] In one possible implementation, such as Figure 2 As shown, the puncture needle core has an injection channel. The puncture needle core 4 includes a puncture needle body 41 and a handheld needle 42. One end of the puncture needle body 41 has a puncture tip 411, which has a beveled structure. The other end of the puncture needle body 41 is fixedly connected to the handheld needle 42. The outer diameter of the handheld needle 42 is larger than the outer diameter of the puncture needle body 41. The injection channel is provided through the puncture needle body 41 and the handheld needle 42.
[0039] Specifically, by configuring the puncture needle core 4 to include a puncture needle body 41 and a handheld needle 42, with the outer diameter of the handheld needle 42 being larger than the outer diameter of the puncture needle body 41, it is possible to prevent the puncture needle core 4 from being accidentally inserted entirely into the indwelling cannula 1. Furthermore, after the indwelling cannula 1 is inserted into the corresponding position using the puncture needle core 4, it is convenient to remove the puncture needle core 4. The puncture needle core is also equipped with an injection channel, allowing an external syringe to inject and aspirate medication through this channel.
[0040] In one possible implementation, a silicone soft plug 5 is built into the external end of the indwelling cannula 1. The puncture tip 411 of the puncture needle core 4 passes through the silicone soft plug 5 and the delivery channel in sequence and then extends out of the internal end of the indwelling cannula 1. The specification of the puncture needle core is 22G 2.
[0041] Specifically, by setting a silicone soft plug 5 at the end of the external end of the indwelling cannula 1, the sealing effect can be enhanced to prevent backflow of the medicine; on the other hand, the silicone soft plug 5 can minimize the indwelling volume of the external end of the indwelling cannula 1 by wrapping the external end of the indwelling cannula 1 with the external plug 5, and the soft silicone material can further reduce the possibility of pressure injury; at the same time, it can also limit the position of the puncture needle core 4.
[0042] In one possible implementation, the distance from the connecting port 11 to the external end of the indwelling cannula 1 is less than the distance from the connecting port 11 to the insertion end of the indwelling cannula 1. Generally, the tube body from the connecting port 11 to the external end of the indwelling cannula 1 remains outside the patient's body, hence the shorter distance. The tube body from the connecting port 11 to the insertion end of the indwelling cannula 1 remains inside the patient's body. The specific dimensions are set according to clinical needs, but the dimensions are always greater than the dimensions of the tube body from the connecting port 11 to the insertion end of the indwelling cannula 1.
[0043] In one possible implementation, the catheter connector 3 includes a catheter connection end and a syringe connection end. The catheter connection end is provided with a catheter limiting groove, and the syringe connection end is provided with a syringe connection groove. The catheter limiting groove and the syringe connection groove are connected. The other end of the extension catheter 2 is inserted into the catheter limiting groove and detachably connected to the catheter connector 3. The syringe connection groove is movably connected to an external syringe.
[0044] Specifically, one end of the extension catheter 2 can be inserted into the catheter limiting groove, and the limiting groove has a limiting structure to limit the extension catheter 2, thereby preventing the extension catheter 2 from detaching from the catheter connector 3 during use. Simultaneously, when it is necessary to inject medication into the extension catheter 2, the medication injection end of the syringe can be inserted into the syringe connection end to inject medication into the extension catheter 2. The catheter connector 3 in this application can use the limiting structure of existing catheter connectors to limit the extension catheter 2, such as existing snap-fit connectors or spiral connectors. This application can also provide a silicone tip at the end of the syringe connection end to seal the end of the catheter connector 3 and prevent medication leakage.
[0045] In one possible implementation, the indwelling cannula 1 and the extension catheter 2 are integrally formed to prevent leakage of medication between the indwelling cannula 1 and the extension catheter 2, while further reducing the size of the external end of the indwelling cannula 1 and reducing pressure injury to the skin.
[0046] In one possible implementation, the insertion end of the indwelling cannula 1 is configured as a frustum structure 12 with a gradually decreasing radius. When the insertion end of the indwelling cannula 1 is inserted into the patient's body through the puncture needle core 4, the tip-shaped frustum structure 12 can reduce the damage to the puncture wound, as well as reduce the resistance to insertion and the patient's pain.
[0047] In one possible implementation, the outer diameter of both the indwelling cannula 1 and the extension catheter 2 is 0.9 mm, and the specific dimensions can be set according to actual needs.
[0048] In one possible implementation, the indwelling cannula 1 and the extension catheter 2 are medically supportable and are both made of medical-grade polyamide or ether block copolymer. The aforementioned medical-grade polyamide or polyurethane are flexible materials with a certain degree of rigidity and support, which can prevent the indwelling cannula 1 and the extension catheter 2 from being compressed and bent during use. The length of the extension catheter 2 is 40cm-50cm.
[0049] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.
Claims
1. A sacral canal anesthesia puncture and placement kit, characterized in that, The sacral canal anesthesia puncture and indwelling kit includes: The device includes an indwelling cannula, an extension catheter, a catheter connector, and a puncture needle core. The indwelling cannula has a delivery channel extending through it along its length. The puncture needle core is movably disposed within the delivery channel. The side wall of the indwelling cannula has a connection hole communicating with the delivery channel. One end of the extension catheter is fixedly connected to the connection hole, and the other end of the extension catheter is detachably connected to one end of the catheter connector. The length of the puncture needle core is greater than the length of the indwelling cannula.
2. The sacral canal anesthesia puncture and placement kit as described in claim 1, characterized in that, The puncture needle core has an injection channel. The puncture needle core includes a puncture needle body and a handheld needle tip. One end of the puncture needle body has a puncture tip, and the other end of the puncture needle body is fixedly connected to the handheld needle tip. The outer diameter of the handheld needle tip is larger than the outer diameter of the puncture needle body. The injection channel is provided through the puncture needle body and the handheld needle tip.
3. The sacral canal anesthesia puncture and placement kit as described in claim 2, characterized in that, The external end of the indwelling cannula has a built-in silicone soft plug, and the puncture tip of the puncture needle core passes through the silicone soft plug and the delivery channel in sequence before extending out of the internal end of the indwelling cannula.
4. The sacral canal anesthesia puncture and placement kit as described in claim 3, characterized in that, The distance from the connecting hole to the outer end of the indwelling sleeve is less than the distance from the connecting hole to the insertion end of the indwelling sleeve.
5. The sacral canal anesthesia puncture and placement kit as described in claim 4, characterized in that, The catheter connector includes a catheter connection end and a syringe connection end. The catheter connection end is provided with a catheter limiting groove, and the syringe connection end is provided with a syringe connection groove. The catheter limiting groove is connected to the syringe connection groove. The other end of the extension catheter is inserted into the catheter limiting groove and detachably connected to the catheter connector. The syringe connection groove is movably connected to an external syringe.
6. The sacral canal anesthesia puncture and placement kit as described in claim 5, characterized in that, The indwelling cannula and the extension catheter are integrally formed.
7. The sacral canal anesthesia puncture and placement kit as described in claim 6, characterized in that, The insertion end of the indwelling sleeve is designed as a frustum structure with a gradually decreasing radius.
8. The sacral canal anesthesia puncture and placement kit as described in claim 7, characterized in that, The outer diameter of both the indwelling cannula and the extension catheter is 0.9 mm.
9. The sacral canal anesthesia puncture and placement kit as described in claim 8, characterized in that, The indwelling cannula and the extension catheter are made of medical-grade polyamide or polyether block copolymer.