Abdominal wall puncture local anesthetic injection kit for laparoscopic surgery and use method thereof

Abstract

The present invention provides an abdominal wall puncture local anesthetic injection kit for laparoscopic surgery and a method of using the same, and relates to the field of medical technology. The injection kit comprises: a medical three-way valve, a syringe, a balloon and an inner core needle; the three connectors of the medical three-way valve are respectively connected to the syringe, the balloon and the inner core needle; the inner core needle is provided with an outer sleeve needle; the method comprises the following steps in sequence: S1, filling the balloon with saline; S2, positioning the needle tip of the outer sleeve needle. In the present invention, the medical three-way valve is adjusted to separately connect the balloon filled with saline with the inner core needle inserted into the abdominal wall. When the balloon retracts during the slow insertion of the inner core needle, the inner core needle just penetrates into the abdominal cavity, and the needle tip of the outer sleeve needle is just located outside the peritoneum.

Description

Technical Field

[0001] The invention relates to the field of medical technology, and in particular to an abdominal wall puncture local anesthetic injection kit for laparoscopic surgery and a use method thereof. Background Art

[0002] Laparoscopic surgery is a newly developed minimally invasive method and an inevitable trend in the development of surgical methods in the future. Laparoscopic surgery is to make several puncture holes with a diameter of 5 to 12 mm in different parts of the abdomen, insert camera lenses and various special surgical instruments through these puncture holes, and transmit the images of various organs in the abdominal cavity taken by the camera inserted into the abdominal cavity to the TV screen. The surgeon observes the images and uses various surgical instruments to perform operations outside the body to complete the operation.

[0003] At present, before making a hole in the abdominal wall during clinical laparoscopic surgery, local anesthetics need to be used to infiltrate the entire layer of tissue from the skin to the peritoneum to ensure full and complete blockage of the local anesthetic. This requires that when injecting the local anesthetic, the needle tip of the syringe just reaches the peritoneum. If the needle is inserted too deep, the local anesthetic will be injected into the abdominal cavity. If the needle is inserted too shallowly, the extraperitoneal tissue will be difficult to block. Starting from the infiltration of the local anesthetic in the second hole, it can be completed under the monitoring of the camera lens inserted into the first hole to ensure the accuracy of the needle insertion position.

[0004] However, in current clinical practice, the first puncture local anesthesia infiltration is performed by the surgeon using a common syringe based on clinical experience. It is impossible to visually determine whether the needle tip has reached the peritoneum, which makes it difficult to ensure sufficient and complete blockade of the local anesthetic, resulting in poor anesthesia effect. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides an abdominal wall puncture local anesthetic injection kit for laparoscopic surgery and a method of using the kit, which solves the problem of being unable to determine whether the needle tip has just reached the outside of the peritoneum during the blind local anesthesia infiltration needle insertion process.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A local anesthetic injection kit for abdominal wall puncture in laparoscopic surgery, the injection kit comprising: a medical three-way valve, a syringe, a balloon and an inner core needle; the three connectors of the medical three-way valve are respectively connected with the syringe, the balloon and the inner core needle; the inner core needle is provided with an outer sleeve needle, the needle tip of the inner core needle is inserted from the needle plug of the outer sleeve needle and passes through the needle tip of the outer sleeve needle; the needle plug of the outer sleeve needle abuts against the front end of the needle plug of the inner core needle.

[0010] Preferably, the length of the inner core needle tip protruding from the outer sleeve needle tip is two to three millimeters, and when the inner core needle tip just penetrates the abdominal cavity, the outer sleeve needle tip is just located outside the peritoneum.

[0011] Preferably, the medical three-way valve comprises: a first connector, a second connector and a third connector; the first connector is sleeved on the nipple of the syringe, and the first connector is interference connected with the nipple of the syringe; the second connector is fixedly connected to the balloon; the third connector is inserted into the needle plug of the inner core needle, and the third connector is interference connected with the needle plug of the inner core needle.

[0012] Preferably, the inner core needle and the outer sleeve needle are both made of metal.

[0013] Preferably, the needle stem surface of the outer sleeve needle is provided with a length scale.

[0014] Preferably, a plurality of side holes are provided on the needle stem of the outer sleeve needle near the needle tip.

[0015] Preferably, the side holes are distributed on the needle stem along the thread line.

[0016] Preferably, the surface of the balloon is provided with reference patterns, and the presence of the reference patterns facilitates clear observation of the volume change of the balloon.

[0017] A method for using an abdominal wall puncture local anesthetic injection kit for laparoscopic surgery, the method comprising the following steps in sequence:

[0018] S1. Fill the balloon with saline

[0019] The three interfaces of the medical three-way valve are connected to the syringe, the balloon and the inner needle respectively, the outer needle cover is set outside the inner needle, the needle plug of the outer needle is against the front end of the needle plug of the inner needle, and the needle tip of the inner needle protrudes two to three millimeters from the outer needle; adjust the switch of the medical three-way valve, close the inner needle, and then fill the balloon with physiological saline through the syringe;

[0020] S2. Positioning the needle tip of the outer sleeve needle

[0021] Insert the needle tip of the inner needle into the abdominal wall where injection is required, then rotate the switch of the medical three-way valve to close the syringe, and then slowly advance the inner needle deep into the abdominal wall. When the needle tip of the inner needle just penetrates the abdominal cavity, the saline in the balloon is injected into the abdominal cavity, which is manifested as the balloon retracting. At this time, the needle tip of the outer needle is just outside the peritoneum.

[0022] (III) Beneficial effects

[0023] The present invention provides an abdominal wall puncture local anesthetic injection kit for laparoscopic surgery and a method of using the kit. Compared with the prior art, the kit has the following beneficial effects:

[0024] In the present invention, the three interfaces of the medical three-way valve are respectively connected with the syringe, the balloon and the inner core needle, and the outer sleeve needle is arranged outside the inner core needle, and the needle tip of the inner core needle protrudes two to three millimeters from the outer sleeve needle; the medical three-way valve is adjusted to connect the balloon filled with physiological saline with the inner core needle inserted into the abdominal wall separately, and when the balloon retracts during the slow insertion of the inner core needle, the inner core needle just penetrates into the abdominal cavity, and the needle tip of the outer sleeve needle is just located outside the peritoneum; this provides assistance for blind local anesthesia full-thickness infiltration, indirectly ensuring full and complete blockade of the local anesthetic; and solves the problem of being unable to judge whether the needle tip has just reached the outside of the peritoneum during the insertion process of blind local anesthesia infiltration. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the injection kit in an embodiment of the present invention;

[0027] Figure 2 Schematic diagram of the structure of the outer sleeve needle in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The embodiment of the present application solves the problem of being unable to determine whether the needle tip has just reached the outside of the peritoneum during the blind local anesthesia infiltration needle insertion process by providing an abdominal wall puncture local anesthetic injection kit for laparoscopic surgery and a method of using the kit.

[0030] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0031] The three interfaces of the medical three-way valve are respectively connected with the syringe, the balloon and the inner core needle. An outer sleeve needle is arranged outside the inner core needle, and the needle tip of the inner core needle protrudes two to three millimeters from the outer sleeve needle. The medical three-way valve is adjusted to connect the balloon filled with physiological saline with the inner core needle inserted into the abdominal wall separately. When the balloon retracts during the slow insertion of the inner core needle, the inner core needle just penetrates the abdominal cavity, and the needle tip of the outer sleeve needle is just outside the peritoneum. This provides assistance for blind local anesthesia full-thickness infiltration and indirectly ensures sufficient and complete blockade of the local anesthetic. It solves the problem of being unable to judge whether the needle tip has just reached the outside of the peritoneum during the insertion process of blind local anesthesia infiltration.

[0032] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Embodiment 1:

[0034] like Figure 1 As shown, the present invention provides an abdominal wall puncture local anesthetic injection kit for laparoscopic surgery, the injection kit comprising: a medical three-way valve 10, a syringe 20, a balloon 30 and an inner core needle 40; the three connectors of the medical three-way valve 10 are respectively connected to the syringe 20, the balloon 30 and the inner core needle 40; the inner core needle 40 is provided with an outer sleeve needle 41, the needle tip of the inner core needle 40 is inserted from the needle plug of the outer sleeve needle 41 and penetrates from the needle tip of the outer sleeve needle 41; the needle plug of the outer sleeve needle 41 abuts against the front end of the needle plug of the inner core needle 40.

[0035] During the use of the injection kit, the switch of the medical three-way valve is first adjusted to close the inner core needle, and the balloon is filled with physiological saline using a syringe. Then, the needle tip of the inner core needle is inserted into the abdominal wall where injection is required, and then the switch of the medical three-way valve is rotated to close the syringe, and the needle is slowly inserted deep into the abdominal wall. When the needle tip of the inner core needle just penetrates the abdominal cavity, the physiological saline in the balloon is injected into the abdominal cavity, which is manifested as the balloon retracting. At this time, the needle tip of the outer sleeve needle is just located outside the peritoneum, which solves the problem of being unable to judge whether the needle tip has just reached the outside of the peritoneum during the blind local anesthesia infiltration needle insertion process.

[0036] It provides assistance for the subsequent injection of local anesthetics through the outer sheath needle and blind detection of full-thickness infiltration of local anesthetics, indirectly ensuring sufficient and complete blockade of local anesthetics.

[0037] like Figure 1 As shown, the length of the needle tip of the inner core needle 40 protruding from the outer sleeve needle 41 is two to three millimeters, thereby ensuring that when the needle tip of the inner core needle 40 just penetrates the abdominal cavity, the needle tip of the outer sleeve needle 41 is just located outside the peritoneum.

[0038] like Figure 1As shown, the medical three-way valve 10 includes: a first connector 11, a second connector 12 and a third connector 13; the first connector 11 is sleeved on the nipple of the syringe 20, and the first connector 11 is interference connected with the nipple of the syringe 20; the second connector 12 is fixedly connected to the balloon 30; the third connector 13 is inserted into the needle plug of the inner core needle 40, and the third connector 13 is interference connected with the needle plug of the inner core needle 40.

[0039] The inner needle 40 and the outer needle 41 are both made of metal.

[0040] like Figure 2 As shown, the needle stem surface of the outer sleeve needle 41 is provided with a length scale 42 for observing the insertion depth of the outer sleeve needle 41 as a reference for subsequent operations.

[0041] like Figure 2 As shown, a plurality of side holes 43 are formed on the needle stem of the outer sleeve needle 41 near the needle tip.

[0042] like Figure 2 As shown, the side holes 43 are distributed on the needle stem along the thread line, so that when the local anesthetic is injected through the outer sheath needle 41, the whole layer of tissue from the skin to the peritoneum can be infiltrated, thereby ensuring full and complete blocking of the local anesthetic.

[0043] like Figure 1 As shown, the surface of the balloon 30 is provided with a reference pattern 31 , and the existence of the reference pattern 31 makes it easy to clearly observe the volume change of the balloon 30 .

[0044] Embodiment 2:

[0045] The present invention also provides a method for using a local anesthetic injection kit for abdominal wall puncture for laparoscopic surgery, the method comprising the following steps in sequence:

[0046] S1. Fill the balloon with saline

[0047] The three interfaces of the medical three-way valve 10 are connected to the syringe 20, the balloon 30, and the inner core needle 40 respectively, the outer sleeve needle 41 is sleeved outside the inner core needle 40, the needle plug of the outer sleeve needle 41 abuts against the front end of the needle plug of the inner core needle 40, and the needle tip of the inner core needle 40 protrudes two to three millimeters from the outer sleeve needle 41; adjust the switch of the medical three-way valve, close the inner core needle, and then fill the balloon with physiological saline through the syringe;

[0048] S2. Positioning the needle tip of the outer sleeve needle

[0049] Insert the needle tip of the inner needle 40 into the abdominal wall where injection is required, then rotate the switch of the medical three-way valve 10 to close the syringe 20, and then the inner needle 40 continues to slowly advance deep into the abdominal wall. When the needle tip of the inner needle 40 just penetrates the abdominal cavity, the physiological saline in the balloon 30 is injected into the abdominal cavity, which is manifested as the balloon 30 retracting. At this time, the needle tip of the outer needle 41 is just located outside the peritoneum.

[0050] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0051] 1. In the embodiment of the present invention, the three interfaces of the medical three-way valve are respectively connected with the syringe, the balloon and the inner core needle. The outer sleeve needle is arranged outside the inner core needle, and the needle tip of the inner core needle protrudes two to three millimeters from the outer sleeve needle. The medical three-way valve is adjusted to connect the balloon filled with physiological saline with the inner core needle inserted into the abdominal wall separately. When the balloon retracts during the slow insertion of the inner core needle, the inner core needle just penetrates into the abdominal cavity, and the needle tip of the outer sleeve needle is just located outside the peritoneum. This provides assistance for blind local anesthesia full-thickness infiltration and indirectly ensures full and complete blockade of local anesthetics. This solves the problem of being unable to judge whether the needle tip has just reached the outside of the peritoneum during the insertion of blind local anesthesia infiltration.

[0052] 2. In the embodiment of the present invention, a length scale is provided on the surface of the needle stem of the outer sheath needle for observing the insertion depth of the outer sheath needle, thereby estimating the depth of the peritoneum under the skin, and providing a reference for the puncture hole and the local anesthesia insertion operation of the subsequent puncture holes. Although the local anesthesia insertion operation of the subsequent puncture holes can be completed under the monitoring of the camera lens inserted into the first puncture hole, knowing the approximate depth of the peritoneum will undoubtedly increase the surgeon's operating confidence and efficiency.

[0053] 3. In the embodiment of the present invention, a plurality of side holes are distributed along the thread line on the needle stem of the outer sheath needle near the needle tip, so that the local anesthetic can better infiltrate the whole layer of tissue when injected through the outer sheath needle, thereby ensuring full and complete blockade of the local anesthetic.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An abdominal wall puncture local anesthetic injection kit for laparoscopic surgery, the injection kit comprising: A syringe (20) and an inner core needle (40); characterized in that the injection kit further comprises: a medical three-way valve (10) and a balloon (30); the three connectors of the medical three-way valve (10) are respectively connected to the syringe (20), the balloon (30) and the inner core needle (40); the inner core needle (40) is provided with an outer sleeve needle (41); the needle tip of the inner core needle (40) is inserted from the needle plug of the outer sleeve needle (41) and passes out from the needle tip of the outer sleeve needle (41); the needle plug of the outer sleeve needle (41) abuts against the front end of the needle plug of the inner core needle (40); The length of the needle tip of the inner core needle (40) protruding from the outer shell needle (41) is two to three millimeters, and when the needle tip of the inner core needle (40) just penetrates the abdominal cavity, the needle tip of the outer shell needle (41) is just located outside the peritoneum; A plurality of side holes (43) are formed on the needle stem of the outer sleeve needle (41) near the needle tip.

2. The abdominal wall puncture local anesthetic injection kit for laparoscopic surgery as claimed in claim 1, characterized in that: The medical three-way valve (10) comprises: a first connector (11), a second connector (12) and a third connector (13); the first connector (11) is sleeved on the nipple of the syringe (20), and the first connector (11) is interference-connected with the nipple of the syringe (20); the second connector (12) is fixedly connected to the balloon (30); the third connector (13) is inserted into the needle plug of the inner core needle (40), and the third connector (13) is interference-connected with the needle plug of the inner core needle (40).

3. The abdominal wall puncture local anesthetic injection kit for laparoscopic surgery as claimed in claim 1, characterized in that: The inner needle (40) and the outer needle (41) are both made of metal.

4. The abdominal wall puncture local anesthetic injection kit for laparoscopic surgery as claimed in claim 1, characterized in that: The needle stem surface of the outer sleeve needle (41) is provided with a length scale (42).

5. The abdominal wall puncture local anesthetic injection kit for laparoscopic surgery as claimed in claim 1, characterized in that: The side holes (43) are distributed on the needle stem along the thread line.

6. The abdominal wall puncture local anesthetic injection kit for laparoscopic surgery according to claim 1, characterized in that: The surface of the balloon (30) is provided with a reference pattern (31), and the presence of the reference pattern (31) facilitates clear observation of volume changes of the balloon (30).

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