Continuous sacral plexus block kit

Abstract

The utility model relates to a continuous sacral plexus block suite. The continuous sacral plexus block suite comprises a puncture assembly and a drug delivery assembly, the puncture assembly comprises a sleeve, a steel needle, a first supporting steel wire, a hollow hard tube and a first isolation plug. The steel needle is arranged in the sleeve and extends outwards, so that one end of the steel needle can protrude out of the sleeve, and the other end of the steel needle is connected with the hollow hard tube; the steel needle is sleeved with the first supporting steel wire, and the first supporting steel wire is fixedly arranged in the sleeve; the first isolation plug is arranged at the top end of the hollow hard tube and is fixedly connected with the hollow hard tube; and the dosing assembly is arranged on the sleeve and is communicated with the sleeve. According to the scheme, the cannula can be placed at the sacral canal, the administration dosage and the administration frequency are dynamically adjusted according to the actual condition of a patient so that the cannula can be suitable for anesthesia or analgesia of a long-time operation, the applicability is high, practicability is high, the risk of total spinal anesthesia caused by one-time large-dose administration is effectively avoided, and safety is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relate to a continuity sacral plexus block kit. BACKGROUND

[0002] Sacrocanal block (sacral plexus block), is through the sacral hiatus and injects local anesthetic into the sacral canal cavity, blocks the sacral plexus nerve, is a kind of epidural block, with simple operation, small injury, rapid onset, anesthesia effect is definite etc., is the anesthesia method commonly used in clinic.Especially the sacral duct of the child does not close, there is natural gap, more suitable for providing good anesthesia for the lower abdomen and lower limbs operation of the child through sacral plexus block technology, which can significantly reduce the dosage of general anesthesia, reduce the interference of anesthesia to the vital signs of the child, is conducive to the rapid recovery and rehabilitation of the child.At the same time, through the sacral plexus block technology in the sacral duct injection can also provide a safe and reliable drug delivery route for postoperative analgesia of the child.

[0003] But the sacral plexus block used at present is a one-time drug delivery mode, that is, a certain dose of anesthetic is injected through the sacral hiatus once to play the role of anesthesia and analgesia, since any anesthetic has a certain action time, the current sacral plexus block cannot be used for anesthesia of long time operation, and also cannot provide long time postoperative analgesia for the child, the applicability is poor, and the practicality is not high, and this one-time administration of a large amount of anesthetic can easily lead to full spinal anesthesia of the child and cause serious safety hazards.

[0004] Therefore, it is urgent to design a continuous sacral plexus block kit, which can place the cannula in the sacral duct, and dynamically adjust the drug dosage and drug frequency according to the actual situation of the patient to adapt to the anesthesia or analgesia of long time operation, the applicability is higher, the practicality is strong, and the risk of full spinal anesthesia caused by one-time large dose administration can be effectively avoided, the safety is greatly improved. UTILITY MODEL CONTENT

[0005] In order to overcome the problems in the related art, the application provides a continuous sacral plexus block kit, which can place the cannula in the sacral duct, and dynamically adjust the drug dosage and drug frequency according to the actual situation of the patient to adapt to the anesthesia or analgesia of long time operation, the applicability is higher, the practicality is strong, and the risk of full spinal anesthesia caused by one-time large dose administration can be effectively avoided, the safety is greatly improved.

[0006] The application provides a continuous sacral plexus block kit which comprises a puncture assembly and a drug delivery assembly; the puncture assembly comprises a sleeve, a steel needle, a first supporting steel wire, a hollow hard tube and a first isolation plug; the steel needle is arranged in the sleeve and extends outward, so that one end of the steel needle can protrude from the sleeve and the other end is connected with the hollow hard tube; the first supporting steel wire is sleeved on the steel needle and is fixedly arranged in the sleeve; the first isolation plug is arranged at the top end of the hollow hard tube and is fixedly connected with the hollow hard tube; the drug delivery assembly is arranged on the sleeve and is in communication with the sleeve.

[0007] In the preferable technical scheme of the application, the puncture assembly further comprises a second isolation plug; the second isolation plug is arranged between the sleeve and the hollow hard tube, and the second isolation plug is fixedly connected with the sleeve.

[0008] In the preferable technical scheme of the application, the hollow hard tube is provided with an observation window; the observation window is transparent, so as to facilitate a user to observe the backflow of blood or cerebrospinal fluid of the steel needle.

[0009] In the preferable technical scheme of the application, the drug delivery assembly comprises a drug delivery side tube, a second supporting steel wire, a threaded joint and a heparin cap; one end of the drug delivery side tube is in communication with the sleeve, and the other end is connected with the threaded joint; the second supporting steel wire is arranged in the drug delivery side tube, and one end of the second supporting steel wire is connected with the threaded joint; the heparin cap is threadedly connected with the threaded joint.

[0010] In the preferable technical scheme of the application, the application further comprises a fixing assembly; the fixing assembly comprises a fixing ring; the fixing ring is sleeved on the sleeve, and one side of the fixing ring towards the needle tip of the steel needle is provided with a sticky layer.

[0011] In the preferable technical scheme of the application, the fixing assembly further comprises a clasp and a plurality of inverted rods; the clasp is sleeved on the sleeve; the plurality of inverted rods are distributed along the circumferential direction of the sleeve to form a ring with a narrow upper part and a wide lower part, and one end of any one of the inverted rods is clamped at the edge of the clasp, and the other end is connected with the fixing ring.

[0012] In the preferable technical scheme of the application, the bottom end of the sleeve is provided with a plurality of side holes; the plurality of side holes are distributed along the circumferential direction of the sleeve.

[0013] In the preferable technical scheme of the application, the drug delivery side tube is integrally formed with the sleeve.

[0014] The technical scheme provided in the application has the following beneficial effects: the continuous sacral plexus block kit provided in the application comprises a puncture assembly, a drug delivery assembly and a fixing assembly. The sleeve is arranged outside the steel needle, and the sleeve is arranged at the sacral canal of the human body when the steel needle is punctured. The drug delivery assembly is arranged in communication with the sleeve, so that the drug delivery dose and the drug delivery frequency can be dynamically adjusted according to the actual situation of the patient, the problem of general spinal anesthesia caused by excessive drug delivery at one time is effectively avoided, and the action time of anesthesia or postoperative analgesia can be prolonged according to the requirement, so as to be suitable for anesthesia or analgesia for long-time operation.

[0015] The first supporting steel wire is arranged in the sleeve, the strength of the sleeve is effectively enhanced, the subsequent drug delivery effect can be effectively prevented from being affected due to extrusion deformation when the sleeve enters the human body, the second isolation plug is arranged, the sleeve can be quickly self-healed and sealed when the steel needle is pulled out, and the pollution of the external environment is avoided, and the fixing assembly is arranged, the sleeve can be fixed on the human body, and the misplacement of the sleeve is effectively avoided.

[0016] Compared with the one-time drug delivery mode in the prior art, the scheme provided in the application can place the sleeve at the sacral canal, dynamically adjust the drug delivery dose and the drug delivery frequency according to the actual situation of the patient, and be suitable for anesthesia or analgesia for long-time operation, has high applicability, strong practicability, can effectively avoid the risk of general spinal anesthesia caused by one-time large-dose drug delivery, and greatly improves the safety.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the different views of the drawings.

[0019] Figure 1 is a structure schematic view of the continuous sacral plexus block kit shown in the embodiment of the application;

[0020] Figure 2 is a partial structure schematic view of the puncture assembly shown in the embodiment of the application;

[0021] Figure 3 is a structure schematic view of the drug delivery assembly shown in the embodiment of the application;

[0022] Figure 4 is another structure schematic view of the continuous sacral plexus block kit shown in the embodiment of the application;

[0023] Figure 5Fig. 1 is a schematic diagram of a puncture assembly and a fixing assembly according to an embodiment of the present application.

[0024] Legend of reference signs:

[0025] 11, cannula; 111, side hole; 12, steel needle; 13, first supporting steel wire; 14, hollow hard tube; 15, first isolation plug; 16, second isolation plug; 21, administration side tube; 22, second supporting steel wire; 23, threaded joint; 24, heparin cap; 31, fixing ring; 32, adhesive layer; 33, snap ring; 34, inverted rod. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described in detail with reference to the drawings. Although the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0027] The terms used in the present application are merely for the purpose of describing particular embodiments and are not intended to limit the present application. As used in the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0028] It should be understood that although the terms "first", "second", "third", etc. can be used in this application to describe various information, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0029] The current sacral plexus block is a one-time administration method, that is, a certain dose of local anesthetic is injected through the sacral hiatus to play an anesthetic and analgesic effect. Since any local anesthetic has a certain action time, the current sacral plexus block cannot be used for anesthesia for long time surgery, nor can it provide long-term postoperative analgesia for children, and the applicability is poor, the practicality is not high, and this one-time administration of a large amount of local anesthetic is easy to cause whole spinal anesthesia in children and cause serious safety hazards.

[0030] To solve the above problems, the embodiment of the present application provides a continuous sacral plexus block kit, which can place a cannula at the sacral canal, dynamically adjust the drug dosage and drug frequency according to the actual situation of the patient, and be suitable for anesthesia or analgesia for long-time surgery, has high applicability and strong practicability, can effectively avoid the risk of general spinal anesthesia caused by one-time large-dose drug administration, and greatly improves the safety.

[0031] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0032] Embodiment one

[0033] Please refer to Figures 1-5 The continuous sacral plexus block kit of the present application comprises a puncture assembly and a drug delivery assembly, the drug delivery assembly is arranged on the puncture assembly and is in communication with the puncture assembly, and is used for facilitating the user to perform multiple drug delivery operations, wherein the drug includes but is not limited to anesthetic and analgesic.

[0034] As Figures 1-3 shown, the puncture assembly comprises a cannula 11, a steel needle 12, a first supporting steel wire 13, a hollow hard tube 14 and a first isolation plug 15. The steel needle 12 and the first supporting steel wire 13 are arranged in the cannula 11, and the hollow hard tube 14 and the first isolation plug 15 are arranged in sequence at one end of the cannula 11. Specifically, the steel needle 12 is arranged in the cannula 11 in a penetrating manner and extends outward, so that one end of the steel needle 12 can protrude out of the cannula 11, and the other end is connected with the hollow hard tube 14, that is, when the steel needle 12 is installed in the cannula 11, the needle tip and the tail end of the steel needle 12 can protrude out of the cannula 11. Further, the bottom end of the cannula 11 is provided with a plurality of side holes 111, and the plurality of side holes 111 are distributed along the circumferential direction of the cannula 11. By arranging a plurality of side holes 111 at the bottom end of the cannula 11, the drug can flow out through the side holes 111 during drug delivery, which enhances the flexibility and efficiency of drug delivery, makes the drug evenly distributed, increases the drug diffusion range, and reduces the risk of blockage. It should be noted that the first isolation plug is a filtering component in communication with air, has the performance of a filter membrane, not only facilitates the backflow of blood or cerebrospinal fluid, but also effectively prevents foreign matter from entering the blood vessel, ensuring safety.

[0035] The first supporting steel wire 13 is sleeved on the steel needle 12 and fixedly arranged in the sleeve 11, for providing support for the sleeve 11 to prevent the sleeve 11 from being folded or deformed due to extrusion. The first isolation plug 15 is arranged at the top end of the hollow hard tube 14 and fixedly connected with the hollow hard tube 14, for providing a sealed environment for the steel needle 12 and for the backflow of blood or cerebrospinal fluid in the hollow hard tube 14 to reduce the occurrence of complications. Further, in order to confirm the accuracy of the puncture position of the steel needle 12, the hollow hard tube 14 is transparent. For example, the hollow hard tube 14 can be made of transparent plastic material, so as to facilitate the user to observe the backflow of blood or cerebrospinal fluid of the steel needle 12.

[0036] In order to facilitate the sleeve 11 to maintain a sealed state after the steel needle 12 is pulled out, the puncture assembly further comprises a second isolation plug 16 arranged between the sleeve 11 and the hollow hard tube 14, and the second isolation plug 16 is fixedly connected with the sleeve 11, that is, the second isolation plug 16, the hollow hard tube 14 and the first isolation plug 15 are arranged in sequence on one side of the sleeve 11, the steel needle 12 passes through the second isolation plug 16 and is fixed in the sleeve 11. It should be noted that the second isolation plug 16 is a material with self-healing property, such as silica gel, which can maintain the sealing property of the top of the sleeve 11 after the steel needle 12 is pulled out to avoid pollution.

[0037] As shown in Figure 3 The drug administration assembly is arranged on the sleeve 11 and communicates with the sleeve 11. Specifically, the drug administration assembly comprises a drug administration side tube 21, a second supporting steel wire 22, a threaded joint 23 and a heparin cap 24. One end of the drug administration side tube 21 communicates with the sleeve 11, and the other end is connected with the threaded joint 23. For example, the drug administration side tube 21 is integrally formed with the sleeve 11, and the stability of the continuous sacral plexus block kit can be improved by integrally forming the drug administration side tube 21 with the sleeve 11.

[0038] The second supporting steel wire 22 is arranged in the administration side tube 21, and one end of the second supporting steel wire 22 is connected with the threaded joint 23. In order to further fix the second supporting steel wire 22, the second supporting steel wire 22 is fixedly arranged on the tube wall of the administration side tube 21. The heparin cap 24 is threadedly connected with the threaded joint 23, that is, the heparin cap 24 is connected with the administration side tube 21 through the threaded joint 23. When administration is needed, the relevant medicine is injected into the inside of the heparin cap 24, so that the medicine can enter the administration side tube 21 through the heparin cap 24, then enter the sleeve tube 11, flow out from the end of the sleeve tube 11 and the side hole 111 and directly act on the preset position, thereby realizing the administration operation. The administration operation can dynamically adjust the administration dose and the administration frequency according to the actual situation of the patient, has good adaptability and strong practicability.

[0039] Principle of use:

[0040] Firstly, the skin is pierced by the steel needle 12, and the end of the sleeve tube 11 is led to the sacral canal. Then, the hollow hard tube 14 and the first isolation plug 15 are pinched and pulled outwards, so that the steel needle 12 can move out of the sleeve tube 11 together with the hollow hard tube 14. At this time, the second isolation plug 16 quickly heals and seals the end of the sleeve tube 11. When administration is needed, the inside of the heparin cap 24 is only needed to be given medicine, so that the medicine enters the sleeve tube 11 and flows into the human body from the end of the sleeve tube and the side hole 111, that is, the administration operation is completed, and multiple administrations can be performed according to the actual situation of the patient.

[0041] In the first embodiment, the continuous sacral plexus block kit provided by the application comprises a puncture assembly and an administration assembly. By arranging a sleeve tube on the steel needle, the sleeve tube can be placed at the sacral canal of the human body when the steel needle is punctured, and the administration assembly in communication with the sleeve tube is arranged on the sleeve tube, so that the administration dose and the administration frequency can be dynamically adjusted according to the actual situation of the patient, the problem of general spinal anesthesia caused by excessive administration at one time is effectively avoided, and the action time of anesthesia or postoperative analgesia can be prolonged according to the needs to adapt to anesthesia or analgesia for long-time surgery. By arranging a first supporting steel wire in the sleeve tube, the strength of the sleeve tube is effectively enhanced, so that the subsequent administration effect can be effectively prevented from being affected due to extrusion deformation when the sleeve tube enters the human body. By arranging a second isolation plug, the sleeve tube can be quickly sealed by self-healing when the steel needle is pulled out, so that the pollution of the external environment is avoided. Compared with the administration mode in the prior art, the scheme provided by the application can place the sleeve tube at the sacral canal, dynamically adjust the administration dose and the administration frequency according to the actual situation of the patient to adapt to anesthesia or analgesia for long-time surgery, has higher applicability and stronger practicability, and can effectively avoid the risk of general spinal anesthesia caused by one-time large-dose administration, thereby greatly improving the safety.

[0042] Embodiment Two

[0043] On the basis of the above-mentioned embodiment one, in order to facilitate the fixation of the sleeve on the human body, the continuous sacral plexus block kit further comprises a fixing assembly, please participate Figures 1-5 , Specifically:

[0044] The fixing assembly comprises a fixing ring 31, the fixing ring 31 is sleeved on the sleeve 11, and the fixing ring 31 is provided with a sticky layer 32 on the side facing the needle tip of the steel needle 12. When the sleeve 11 enters the sacral canal with the steel needle 12, the fixing ring 31 approaches the human skin with the sleeve 11, and when the sleeve 11 reaches the sacral canal, the fixing ring 31 can be pushed to the human body until the sticky layer 32 is tightly attached to the human skin.

[0045] Further, in order to prevent the fixing ring 31 from moving, the fixing assembly further comprises a clamping ring 33 and a plurality of inverted rods 34. The clamping ring 33 is sleeved on the sleeve 11 and located on one side of the sticky layer 32. A plurality of inverted rods 34 are distributed along the circumferential direction of the sleeve 11 to form a ring with a narrow upper part and a wide lower part. One end of any one of the inverted rods 34 is connected to the edge of the clamping ring 33, and the other end is connected to the fixing ring 31. It should be noted that the up and down direction in the narrow upper part and the wide lower part is taken as the reference in the drawings. Figure 5

[0046] When it is necessary to fix the fixing ring 31, the inverted rod 34 is moved towards the clamping ring 33 until the inverted rod 34 completely penetrates the clamping ring 33, and then the inverted rod 34 is pushed towards the second isolation plug 16. Since the inverted rod 34 is in the form of a ring with a narrow upper part and a wide lower part, the upper end of the inverted rod 34 cannot move due to the obstruction of the clamping ring 33, thereby fixing the fixing ring 31 connected to the inverted rod 34, and further fixing the sleeve 11 to prevent the sleeve 11 from moving.

[0047] It should be noted that the continuous sacral plexus block kit provided by the present application can be fixed on the human body using the self-provided fixing assembly, or can be pasted on the human body using medical glue. This is not limited here and belongs to the protection scope of the present application.

[0048] In the embodiment two of the present application, the fixing ring 31 is pushed towards the human body, so that the inverted rod 34 can be clamped by the clamping ring 33, thereby fixing the fixing ring 31, and then the sticky layer 32 is pasted on the human skin, so that the sleeve can be fixed on the human body, effectively avoiding the misplacement of the sleeve.

[0049] ​In the description of the application, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component itself.

[0050] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. The exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.

[0051] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous sacral block kit, comprising: The puncture assembly and the administration assembly are included; The puncture assembly includes a sleeve (11), a steel needle (12), a first supporting steel wire (13), a hollow hard tube (14) and a first isolation plug (15); The steel needle (12) is arranged in the sleeve (11) and extends outwardly, so that one end of the steel needle (12) can protrude from the sleeve (11) and the other end is connected with the hollow hard tube (14); The first supporting steel wire (13) is sleeved on the steel needle (12) and is fixedly arranged in the sleeve (11); The first isolation plug (15) is arranged at the top end of the hollow hard tube (14) and is fixedly connected with the hollow hard tube (14); The administration assembly is arranged on the sleeve (11) and is in communication with the sleeve (11).

2. The continuous sacral block kit of claim 1, wherein, The puncture assembly further includes a second isolation plug (16); The second isolation plug (16) is arranged between the sleeve (11) and the hollow hard tube (14) and is fixedly connected with the sleeve (11).

3. The continuous sacral block kit according to claim 1, wherein The hollow hard tube (14) is transparent, so as to facilitate the user to observe the backflow of blood or cerebrospinal fluid of the steel needle (12).

4. The continuous sacral block kit according to claim 1, wherein The administration assembly includes an administration side tube (21), a second supporting steel wire (22), a threaded joint (23) and a heparin cap (24); One end of the administration side tube (21) is in communication with the sleeve (11) and the other end is connected with the threaded joint (23); The second supporting steel wire (22) is arranged in the administration side tube (21) and one end of the second supporting steel wire (22) is connected with the threaded joint (23); The heparin cap (24) is threadedly connected with the threaded joint (23).

5. The continuous sacral block kit of claim 1, wherein the needle is a 22 gauge needle. Further including a fixing assembly; the fixing assembly includes a fixing ring (31); The fixing ring (31) is sleeved on the sleeve (11) and a sticky layer (32) is arranged on the side of the fixing ring (31) facing the needle tip of the steel needle (12).

6. The continuous sacral block kit of claim 5, wherein the needle is a 22 gauge needle. The fixing assembly further includes a clasp ring (33) and a plurality of inverted rods (34); The clasp ring (33) is sleeved on the sleeve (11); The plurality of inverted rods are distributed along the circumferential direction of the sleeve (11) to form a ring with a narrow upper part and a wide lower part, and one end of any one of the inverted rods is clamped at the edge of the clasp ring (33) and the other end is connected with the fixing ring (31).

7. The continuous sacral block kit according to claim 1, wherein The bottom end of the sleeve (11) is provided with a plurality of side holes (111); The plurality of side holes (111) are distributed along the circumferential direction of the sleeve (11).

8. The continuous sacral block kit according to claim 4, wherein The administration side tube (21) is integrally formed with the sleeve (11).

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