Intraspinal puncture skin breaking needle
By designing an intra-spinal puncture needle, using a combination of a conical skin breaker and an anti-fouling sponge ring, the problems of high puncture failure rate and contamination risk during intra-spinal anesthesia are solved, and efficient and safe puncture operation is achieved.
Patent Information
- Application Number
- CN202422163320.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-04
AI Technical Summary
During intra-spinal anesthesia, the needle hole that pulls out the puncture needle after the skin is broken is difficult to find, resulting in an increase in puncture failure rate and may cause additional side damage and epidural puncture needle contamination.
A penile canal puncture needle was designed, including a conical skin-breaker and a durapae needle. The inner side of the conical skin-breaker was equipped with an anti-fouling sponge ring and a groove. The opening of the puncture needle was sealed through the anti-fouling sponge ring. The conical skin-breaker diffuses and cracks under the action of external force, and the durapae needle passed smoothly.
It improves the success rate of puncture, reduces the risk of bacterial infection in the skin, simplifies the operation process, and improves the operation efficiency.
Smart Images
Figure CN223143569U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an intraspinal puncture skin-breaking needle. Background Art
[0002] During the implementation of intraspinal anesthesia, breaking the skin is a necessary step. The currently commonly used method is to break the skin with a relatively thick steel needle. Although this operation is simple in technique, it has an obvious drawback, that is, after breaking the skin, the puncture hole of the puncture needle may be difficult or not easy to find when pulling out the puncture needle; in addition, breaking the skin not only breaks the skin, but also needs to break part of the subcutaneous tissue; however, once the epidural needle cannot follow the same path as the first skin-breaking needle, it may not only cause additional secondary injuries, but also increase the puncture failure rate; in addition, bacteria may still remain on the cut edge of the puncture hole after breaking the skin, thus causing contamination of the epidural puncture needle. For this reason, we have invented an intraspinal puncture skin-breaking needle. Content of the Utility Model
[0003] The purpose of this part is to outline some aspects of the implementation mode of the utility model and briefly introduce some preferred implementation modes. Simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.
[0004] Therefore, the purpose of the utility model is to provide an intraspinal puncture skin-breaking needle to solve the problems in the above-mentioned background art that during the implementation of intraspinal anesthesia, after breaking the skin, the puncture hole of the puncture needle may be difficult or not easy to find when pulling out the puncture needle; once the epidural needle cannot follow the same path as the first skin-breaking needle, it may not only cause additional secondary injuries, but also increase the puncture failure rate; and bacteria may still remain on the cut edge of the puncture hole after breaking the skin, thus causing contamination of the epidural puncture needle.
[0005] To achieve the above purpose, the utility model provides the following technical solution: an intraspinal puncture skin-breaking needle, which includes a conical skin breaker and an epidural puncture needle inserted inside the conical skin breaker. The conical skin breaker includes a cone with a cavity inside. One end of the cone has a pointed head, and the opposite end of the cone to the pointed head has a puncture needle opening. Oppositely arranged and cooperating grooves are formed on both sides of the cone, and one end of the grooves extends to the pointed head part. During use, the epidural puncture needle is inserted through the puncture needle opening and passes through the pointed head part until it enters the designated part. A pollution-proof sponge ring sleeved outside the epidural puncture needle is arranged inside the cone at the puncture needle opening part.
[0006] As a preferred embodiment of the intraspinal puncture skin-breaking needle of the present utility model, on both sides of the outer wall of the conical skin-breaking device and adjacent to the outer edge of the puncture needle opening, skin-breaking device finger wings are fixed, and one side of the skin-breaking device finger wings and the same surface as the puncture needle opening have anti-slip patterns.
[0007] As a preferred embodiment of the intraspinal puncture skin-breaking needle of the present utility model, at the center of the anti-fouling sponge ring, there is also an inner hole with a diameter smaller than the outer diameter of the dural puncture needle, and on one side of the anti-fouling sponge ring, an avoidance slot communicating with the inner hole is also provided.
[0008] As a preferred embodiment of the intraspinal puncture skin-breaking needle of the present utility model, the distance between the roots of the remaining avoidance slots on both sides is greater than the outer diameter of the dural puncture needle.
[0009] As a preferred embodiment of the intraspinal puncture skin-breaking needle of the present utility model, the conical skin-breaking device is made of medical-grade PC plastic.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: For this kind of intraspinal puncture skin-breaking needle, during use, the conical skin-breaking device can be directly vertically inserted into the skin until the subcutaneous tissue through the pointed end. After successful skin-breaking, the anti-fouling sponge ring is sleeved outside the dural puncture needle, and then the dural puncture needle is inserted into the cone, so that the anti-fouling sponge ring seals the puncture needle opening, which can minimize the possibility of infection caused by bacteria remaining in the skin. Subsequently, with the cooperation of the remaining avoidance slots, when the cone is pressed in by an external force, it spreads and cracks, so that the front end of the cone is divided into two parts. In this way, the dural puncture needle can smoothly pass through the skin-breaking device and reach the depth. After successful puncture, the conical skin-breaking device and the dural puncture needle can be pulled out together. The operation is simple and the design is reasonable, effectively improving the puncture success rate and operation efficiency of intraspinal puncture. Description of the Drawings
[0011] Figure 1 Schematic diagram of the external structure of the skin-breaking device of the present utility model;
[0012] Figure 2 Schematic diagram of the structure of the anti-fouling sponge ring of the present utility model;
[0013] Figure 3 Schematic diagram of the cooperation structure of the skin-breaking device and the puncture needle of the present utility model;
[0014] Figure 4 Schematic diagram after the skin-breaking device of the present utility model is inserted into the skin.
[0015] In the figure: 100, conical skin-breaking device; 110, cone; 1101, pointed tip; 1102, puncture needle port; 1103, spare groove; 120, skin-breaking device wing; 1201, anti-slip pattern; 200, dura mater puncture needle; 300, anti-fouling sponge ring; 3001, avoidance groove. DETAILED DESCRIPTION
[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0017] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.
[0018] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0019] Figures 1-4 The schematic diagram of the whole structure of the spinal canal puncture skin-breaking needle of the utility model is shown. Figures 1-4 , an intraspinal puncture skin-breaking needle of the present embodiment includes a conical skin-breaking device 100 and a dura mater puncture needle 200 inserted into the inner side of the conical skin-breaking device 100, the conical skin-breaking device 100 includes a cone 110 with a cavity inside, one end of the cone 110 has a pointed head 1101, the cone 110 has a puncture needle port 1102 at the opposite end of the pointed head 1101, and two sides of the cone 110 are provided with opposing grooves 1103 and one end extends to the tip 1101. During use, the dura mater puncture needle 200 is inserted from the puncture needle port 1102 and passes through the tip 1101 until it enters the designated position, and an anti-fouling sponge ring 300 is provided on the inner side of the cone 110 and located at the puncture needle port 1102 and is sleeved on the outer side of the dura mater puncture needle 200.
[0020] Skin breaking tool wings 120 are fixed on both sides of the outer wall of the conical skin breaking tool 100 and adjacent to the outer edge of the puncture needle port 1102. Anti-slip grooves 1201 are provided on one side of the skin breaking tool wings 120 and on the same surface as the puncture needle port 1102. The skin breaking tool wings 120 can be arranged to allow medical personnel to locate the direction of the skin breaking tool when using it, and can also facilitate medical personnel to transfer the force of their fingers from the skin breaking tool wings 120 to the cone 110 and the pointed head 1101, so that the skin breaking tool can be smoothly pressed into the skin, which is simple and easy to use.
[0021] In this embodiment, since the conical skin-breaking device 100 needs to introduce the dura mater puncture needle 200 after entering the skin, a pair of spare grooves 1103 are opened on both sides of the cone 110. In this way, when the cone 110 is subjected to external force, that is, the puncture needle is pressed in, it is easy to spread and crack, thereby dividing the front end of the cone 110 into two, so that the dura mater puncture needle 200 can pass smoothly and continue to go deeper.
[0022] The anti-fouling sponge ring 300 also has an inner hole at the center of the circle, the diameter of which is smaller than the outer diameter of the dura mater puncture needle 200. One side of the anti-fouling sponge ring 300 is also provided with an avoidance groove 3001 that passes through the inner hole. It can be understood that the anti-fouling sponge ring 300 here uses a medical-grade sponge. When in use, the avoidance groove 3001 can be directly lowered and pushed aside, and the anti-fouling sponge ring 300 can be sleeved on the outside of the dura mater puncture needle 200. When the dura mater puncture needle 200 is deeply inserted into the conical skin-breaking device 100, the anti-fouling sponge ring 300 will be directly embedded in the inner side of the puncture needle port 1102 and block the open part. In this way, the outer wall of the puncture needle can be scraped and cleaned, and the possibility of infection caused by bacteria remaining in the skin can be minimized. In addition, the anti-fouling sponge ring 300 can also absorb body fluids that may exude from the patient to avoid overflow pollution.
[0023] Furthermore, the distance between the roots of the left and right grooves 1103 on both sides is greater than the outer diameter of the dural puncture needle 200, which is conducive to the smooth insertion of the dural puncture needle 200.
[0024] Furthermore, the conical skin breaker 100 is made of medical-grade PC plastic. It can be understood that the use of medical-grade PC plastic makes the conical skin breaker 100 more hygienic when in use, thereby ensuring the safety of the use of the medical device.
[0025] In summary, when using an intraspinal puncture and skin-breaking needle in this embodiment, the conical skin-breaking device 100 can be directly inserted vertically into the skin through the pointed head 1101 until it reaches the subcutaneous tissue. After the skin is broken successfully, the anti-fouling sponge ring 300 is placed on the outside of the dura mater puncture needle 200, and then the dura mater puncture needle 200 is inserted into the cone 110, so that the anti-fouling sponge ring 300 is blocked at the puncture needle port 1102, which can minimize the possibility of infection caused by bacteria remaining in the skin. Subsequently, with the cooperation of the remaining groove 1103, the cone 110 is allowed to spread and crack after being pressed in by external force, thereby dividing the front end of the cone 110 into two, so that the dura mater puncture needle 200 can pass through the skin-breaking device smoothly and reach the deep end directly. After the puncture is successful, the conical skin-breaking device 100 and the dura mater puncture needle 200 can be pulled out together, which is simple to operate and reasonably designed.
[0026] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present utility model can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.
Claims
1. A spinal puncture skin-breaking needle, characterized in that, It includes a conical skin breaker (100) and an epidural puncture needle (200) inserted inside the conical skin breaker (100). The conical skin breaker (100) includes a cone (110) with a cavity inside. One end of the cone (110) has a pointed tip (1101), and the opposite end of the cone (110) located at the pointed tip (1101) has a puncture needle opening (1102). Opposite and cooperating cutouts (1103) are provided on both sides of the cone (110), and one end of each cutout extends to the pointed tip (1101) area. During use, the epidural puncture needle (200) is inserted through the puncture needle opening (1102) and passes through the pointed tip (1101) area until it enters the designated area. An anti-pollution sponge ring (300) sleeved on the outside of the epidural puncture needle (200) is provided inside the cone (110) and at the puncture needle opening (1102) area.
2. The intraspinal puncture skin-breaking needle according to claim 1, characterized in that: Skin breaker finger wings (120) are fixed on both sides of the outer wall of the conical skin breaker (100) and adjacent to the outer edge of the puncture needle opening (1102). Anti-slip patterns (1201) are provided on one side of the skin breaker finger wings (120) and on the same surface as the puncture needle opening (1102).
3. A spinal puncture skin-breaking needle according to claim 1, characterized in that: The center of the anti-pollution sponge ring (300) also has an inner hole with a diameter smaller than the outer diameter of the epidural puncture needle (200). An avoidance cutout (3001) communicating with the inner hole is also provided on one side of the anti-pollution sponge ring (300).
4. A spinal puncture skin-breaking needle according to claim 1, wherein: The distance between the roots of the opposite cutouts (1103) on both sides is greater than the outer diameter of the epidural puncture needle (200).
5. A spinal puncture skin-breaking needle according to claim 1, characterized in that: The conical skin breaker (100) is made of medical-grade PC plastic.