Puncture outfit for pleuroperitoneal cavity drainage
By designing a thoracic and abdominal drainage puncturer with adjustable needle core position, the damage to undesired tissue during the puncture process is solved, achieving a safer and more effective puncture effect.
Patent Information
- Application Number
- CN202420742461.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-04-11
AI Technical Summary
Existing thoracic and abdominal drainage puncture devices are prone to damage undesired tissues, such as intestines, alveoli, blood vessels and nerves, resulting in complications such as infection and pneumothorax.
A thoracic and abdominal drainage puncture device is designed including a needle core and a needle cover, through which the position of the needle core can be adjusted, and the suitable needle tip is selected to avoid undesired tissue damage.
It is possible to select the appropriate needle tip according to the specific situation during puncture, reduce damage to undesired tissue, and improve the safety and effectiveness of puncture.
Smart Images
Figure CN222816112U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of medical equipment, and in particular relates to a thoracoabdominal drainage puncture device. Background Art
[0002] In recent years, with the continuous development of medical technology, thoracic and abdominal catheter drainage has played a key role in the treatment of thoracic and abdominal trauma. This method can be used to extract the fluid in the thoracic and abdominal cavity and perform various examinations. For patients with a large amount of fluid in the thoracic and abdominal cavity, this method can be used to drain the fluid, and if necessary, drugs can be injected to achieve the purpose of treatment.
[0003] During drainage, it is generally necessary to first use a puncture needle to penetrate the chest and abdominal cavity, and then insert a drainage tube for drainage. During puncture, the needle will pass through the skin, muscles, pleura, peritoneum and other tissues. In order to facilitate puncture, a bevel needle is generally used for the puncture needle. Bevel needles are sharper and can easily penetrate the skin, muscles, pleura, peritoneum, etc. to enter the chest and abdominal cavity, but at the same time, they can also easily damage other tissues that we do not expect to be damaged, such as the intestines in the abdominal cavity. Perforating the intestines can cause chest and abdominal cavity infections; for example, the alveoli in the lungs. Perforating the alveoli can cause pneumothorax; in addition, blood vessels and nerves distributed everywhere are also tissues that we do not want to be punctured and damaged during puncture. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a thoracic and abdominal drainage puncture device, which can select a suitable needle tip according to specific circumstances during puncture, ensure the puncture function, and avoid puncturing tissues that are not desired to be damaged by puncture.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thoracic and abdominal drainage puncture device, comprising a needle core and a needle sleeve coaxially arranged in sequence from the inside to the outside, a needle sleeve handle is arranged at the rear end of the needle sleeve, a needle core handle is arranged at the rear end of the needle core, and the needle sleeve handle and the needle core handle are connected by an adjusting device; the adjusting device comprises a shell, the shell is sleeved on the needle core handle, and its bottom end is connected to the needle sleeve handle, a Z-shaped slide groove is arranged on the shell, a slider is arranged in the slide groove, and the slider is fixedly connected to the needle core handle.
[0006] Furthermore, the needle core is an elliptical needle core, the front end of the needle sleeve is provided with an oblique section, and the edge of the oblique section is provided with a groove.
[0007] Furthermore, a spring is sleeved on the needle core handle and is located between the slider and the housing.
[0008] Furthermore, the needle core is a hollow needle core with a hole at the front end, and a silicone valve is provided at the rear end of the needle core handle.
[0009] Furthermore, a silicone sealing valve is provided on the needle sleeve handle.
[0010] Furthermore, an observation window is provided on the needle core handle.
[0011] Furthermore, a rotating handle is provided on the sliding block.
[0012] Another object of the utility model is to provide a thoracoabdominal drainage device, comprising the thoracoabdominal drainage puncture device described above, as well as a guide wire, an expansion sheath and a drainage tube.
[0013] Furthermore, the drainage tube is a pig tail drainage tube.
[0014] Furthermore, the expansion sheath is a three-stage expansion sheath.
[0015] The chest and abdominal drainage puncture device of the utility model can be used to adjust the position of the needle core through the setting of the adjustment device, and the needle core can be adjusted to extend out of the front end of the needle sleeve, or the needle core can be adjusted to be recovered in the needle sleeve. When the needle core and the needle sleeve are selected to have different needle tips, for example, they can be elliptical needle tips or bevel needle tips respectively, which needle tip is located at the front end can be adjusted according to specific circumstances and actual needs, which is practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the thoracoabdominal drainage puncture device of the utility model;
[0017] Figure 2 for Figure 1 Cross-section of the rear end;
[0018] Figure 3 It is a schematic diagram of the structure of the Z-shaped groove;
[0019] Figure 4 A schematic diagram of a needle core extending out of a needle sleeve;
[0020] Figure 5 A diagram showing the needle core being retracted into the needle sheath;
[0021] Figure 6 It is a structural schematic diagram of a sealing valve;
[0022] Figure 7 A schematic diagram of the structure of a guide wire inserted into a thoracic and abdominal drainage puncture device;
[0023] Figure 8 is a schematic diagram of the structure of the dilation sheath;
[0024] In the above figure: 1-needle core; 11-needle core handle; 12-silicone valve; 13-warning window; 2-needle sleeve; 21-needle sleeve handle; 22-sealing valve; 23-drainage branch tube; 24-three-way connector; 25-three-way switch; 3-fixing clamp; 31-tube handle; 32-drainage hole; 33-C-type block; 34-lead hole; 4-adjusting device; 41-housing; 42-slide groove; 421-vertical groove; 422-first horizontal groove; 423-second horizontal groove; 43-slider; 44-spring; 45-rotating handle; 5-guide wire; 6-expansion sheath. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0026] During drainage, it is generally necessary to first use a puncture needle to penetrate the chest and abdominal cavity, and then insert a drainage tube for drainage. During puncture, the needle will pass through the skin, muscles, pleura, peritoneum and other tissues. In order to facilitate puncture, a bevel needle is generally used for the puncture needle. Bevel needles are sharper and can easily penetrate the skin, muscles, pleura, peritoneum, etc. to enter the chest and abdominal cavity, but at the same time, they can also easily damage other tissues that we do not expect to be damaged, such as the intestines in the abdominal cavity. Perforating the intestines can cause abdominal infection; for example, the alveoli in the lungs. Perforating the alveoli can cause pneumothorax; in addition, blood vessels and nerves distributed everywhere are also tissues that we do not want to be punctured and damaged during puncture.
[0027] In order to solve the above problems, the utility model provides a thoracoabdominal drainage puncture device, such as Figure 1 As shown, it includes a needle core 1 and a needle sleeve 2 which are arranged in sequence from the inside to the outside, and the two are arranged coaxially. A needle sleeve handle 21 is arranged at the rear end of the needle sleeve 2, and a needle core handle 11 is arranged at the rear end of the needle core 1. The needle sleeve handle 21 and the needle core handle 11 are connected by an adjustment device 4; Figure 2 As shown, the adjusting device 4 includes a housing 41, which is sleeved on the needle core handle 11, and the bottom end of the housing 41 is connected to the needle sleeve handle 21. The housing 41 is provided with a Z-shaped slide groove 42, and a slider 43 is provided in the slide groove 42. The slider 43 is fixedly connected to the needle core handle 11. Figure 3 As shown, the Z-shaped slide groove 42 includes a vertical groove 421, a first horizontal groove 422 and a second horizontal groove 423, wherein the vertical groove 421 is arranged along the axial direction of the housing 41, one end of the first horizontal groove 422 and the second horizontal groove 423 are respectively connected to the two ends of the vertical groove 421, and are arranged perpendicular to the vertical groove 421, and the first horizontal groove 422 and the second horizontal groove 423 extend to the opposite side of the vertical groove 421, respectively, to form a Z-shape. The first horizontal groove 422 is located at the bottom of the vertical groove 421, and the second horizontal groove 423 is located at the top of the vertical groove 421.
[0028] In view of the specific needs during puncture, an adjustment device 4 is provided between the needle sleeve handle 21 and the needle core handle 11. The adjustment device 4 includes a shell 41. The shell 41 is sleeved on the needle core handle 11, and the bottom end of the shell 41 is connected to the needle sleeve handle 21. A Luer connector is usually used to connect the two. A Z-shaped slide groove 42 is provided on the shell 41, and a slider 43 is provided in the slide groove 42. The slider 43 is fixedly connected to the needle core handle 11. When in use, the slider 43 is dragged to slide along the slide groove 42 to drive the needle core 1 to slide. When the slider 43 is dragged into the first transverse groove 422, the needle tip of the needle core 1 extends out of the needle sleeve 2, as shown in FIG. Figure 4 As shown in FIG. 1 , when the slider 43 is dragged into the second transverse groove 423, the needle tip of the needle core 1 is retracted into the interior of the needle sleeve 2, as shown in FIG. Figure 5 The adjustment device 4 can be used to adjust the position of the needle core 1, and the needle core 1 can be adjusted to extend out of the front end of the needle sleeve 2, or the needle core 1 can be adjusted to be retracted into the needle sleeve 2. When the needle core 1 and the needle sleeve 2 are selected to have different needle tips, for example, they can be elliptical needle tips or bevel needle tips respectively, which needle tip is located at the front end can be adjusted according to specific circumstances and actual needs, which is practical and convenient.
[0029] Furthermore, if Figure 4 As shown in Figures 5 and 6, the needle core 1 is an elliptical needle core, that is, the needle tip of the needle core 1 is an elliptical needle tip, which is round and smooth to avoid puncturing blood vessels, nerves, alveoli and other tissues. The needle sleeve 2 is a puncture needle sleeve, and its front end is provided with an oblique section to facilitate puncturing tissues such as skin, muscle, fat and cavity membrane. During use, according to different situations, when the front end of the drainage puncture device is expected to have a puncture function, the needle tip of the needle core 1 can be retracted into the needle sleeve 2 through the adjustment device 4 to reduce the resistance during puncture. When it is not desired to damage other tissues during puncture, the needle tip of the needle core 1 can be extended out of the front end of the needle sleeve 2 through the adjustment device 4. Further, as Figure 5 As shown, the edge of the oblique section at the front end of the needle sleeve 2 is provided with a groove, and the groove is arranged toward the needle core 1. Since the needle sleeve 2 has a certain wall thickness, when the needle core 1 extends out of the front end of the needle sleeve 2, the tip of the needle sleeve 2 protrudes from the side wall of the needle core 1 and forms a V-shaped notch with the side wall of the needle core 1, which is easy to scratch other tissues. When the groove is provided on the edge of the oblique section, the groove is arranged toward the needle core 1, the single puncture function is ensured while avoiding the formation of the V-shaped notch.
[0030] Furthermore, the needle core 1 is a hollow needle core, and a hole is provided at the top, such as Figure 4 As shown. Figure 2As shown, a silicone valve 12 is provided at the rear end of the needle core handle 11. The needle core 1 is set as a hollow needle core to facilitate the injection of anesthetics during puncture. The silicone valve 12 is provided at the rear end of the needle core handle 11. The silicone valve 12 is a medical silicone valve. When not in use, the silicone valve 12 seals the hollow needle core 1. When the syringe is inserted, the valve is compressed and the channel is opened, and the anesthetic is injected into the puncture site through the syringe to reduce the pain of the patient during puncture.
[0031] Furthermore, if Figure 2 As shown, a spring 44 is sleeved on the needle core handle 11 and is located between the slider 43 and the housing 41. The spring 44 is provided to provide the drainage puncture device of the utility model with a third use state. When in the third use state, the slider 43 is located in the vertical groove 421. When puncturing a tissue with relatively large resistance such as muscle, the spring 44 is compressed, the slider 43 is located at the top of the vertical groove 421, and the needle tip of the needle core 1 is located in the needle sleeve 2. At this time, the puncture ability of the needle sleeve 2 is mainly utilized. When penetrating muscle and other tissues and entering the part where drainage is required, the resistance becomes smaller, the slider 43 slides along the vertical groove 421 to the bottom of the vertical groove 421, and the needle tip of the needle core 1 extends out of the front end of the needle sleeve 2 and automatically pops out to avoid puncturing blood vessels, nerves and other tissues at the moment of puncturing the muscle.
[0032] Furthermore, if Figure 2 As shown, a sealing valve 22 is provided on the needle sheath handle 21, which is located at the lower end of the adjusting device 4, and can ensure that the needle sheath 2 is airtight and the sealing performance of the needle sheath 2 during puncture is ensured. The lower end of the needle sheath handle 21 is divided into two sections, the outer sides of the two sections are plugged together, and the inner sides are symmetrically provided with stepped grooves, and the cap-shaped sealing valve 22 is symmetrically provided in the grooves, and a cross-shaped opening is provided on the end surface of the sealing valve 22, as shown in FIG. Figure 6 After the two sections of the needle sleeve handle 21 are connected, the sealing valve 22 is buckled in the groove, and the brim of the sealing valve 22 is pressed tightly against the step of the groove.
[0033] Furthermore, if Figure 1 As shown, a rotating handle 45 is provided on the slider 43. The rotating handle 45 facilitates the adjustment of the adjustment device 4.
[0034] Furthermore, if Figure 7 As shown, a warning window 13 is provided on the needle core handle 11. The warning window 13 is located between the needle core handle 11 and the adjustment device 4. When the front end of the needle core 1 is retracted into the needle sleeve 2, the warning window 13 is exposed, reminding medical personnel that the puncture force of the entire device is the strongest at this time and to be cautious in puncturing. When the front end of the needle core 1 extends out of the needle sleeve 2, the warning window 13 is blocked by the housing. The warning window 13 can be a red mark or the like provided on the needle core handle 11.
[0035] This embodiment provides a thoracoabdominal drainage device, comprising the thoracoabdominal drainage puncture device described in the above embodiment, as well as a guide wire 5, an expansion sheath 6 and a drainage tube 3. The drainage tube 3 is a conventional pigtail drainage tube. The guide wire 5 is a thin and long metal wire. The expansion sheath 6 is a three-stage expansion sheath, such as Figure 8 As shown, the three-level dilating sheath includes three separate dilating sheaths. The dilating sheath is hollow and has a tapered front end. The small dilating sheath is the thinnest and longest, the large dilating sheath is the thickest and shortest, and the medium dilating sheath is between the two in thickness and length.
[0036] When the entire thoracic and abdominal drainage device is in use, the thoracic and abdominal drainage puncture device is first used to puncture into the body, and then the guide wire 5 is inserted from the tail end of the needle core handle 11 into the needle core 1, and continues to be inserted and passed through the hole at the front end of the needle core 1. At this time, the front end of the guide wire 5 is located in the part that needs drainage, and then the needle core 1 and the needle sleeve 2 are pulled out of the body along the guide wire. At this time, the guide wire 5 occupies the puncture channel. Next, the drainage tube 3 needs to be inserted into the drainage part along the puncture channel. At this time, it is necessary to first use the expansion sheath 6 to expand the channel, and then insert the drainage tube 3. Since the guide wire 5 is relatively thin, a small expansion sheath is first used to insert the guide wire 5 into the body to expand the puncture channel a little, and then the medium expansion sheath and the large expansion sheath are used in turn to gradually expand the puncture channel. After the expansion sheath is pulled out, the drainage tube 3 can be easily inserted into the body for drainage.
[0037] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.
Claims
1. A thoracoabdominal drainage puncture device, characterized in that: The invention comprises a needle core and a needle sleeve which are coaxially arranged in sequence from the inside to the outside, wherein a needle sleeve handle is arranged at the rear end of the needle sleeve, and a needle core handle is arranged at the rear end of the needle core, and the needle sleeve handle and the needle core handle are connected via an adjusting device; the adjusting device comprises a shell, which is sleeved on the needle core handle and its bottom end is connected to the needle sleeve handle, a Z-shaped slide groove is arranged on the shell, a slider is arranged in the slide groove, and the slider is fixedly connected to the needle core handle.
2. The thoracoabdominal drainage puncture device according to claim 1, characterized in that: The needle core is an elliptical needle core, the front end of the needle sleeve is provided with an oblique section, and the edge of the oblique section is provided with a groove.
3. The thoracoabdominal drainage puncture device according to claim 2, characterized in that: A spring is sleeved on the needle core handle and is located between the slider and the housing.
4. The thoracoabdominal drainage puncture device according to claim 3, characterized in that: The needle core is a hollow needle core with a hole at the front end and a silicone valve at the rear end of the needle core handle.
5. The thoracoabdominal drainage puncture device according to claim 4, characterized in that: A silicone sealing valve is arranged on the needle sleeve handle.
6. The thoracoabdominal drainage puncture device according to claim 5, characterized in that: An observation window is arranged on the needle core handle.
7. The thoracoabdominal drainage puncture device according to claim 6, characterized in that: The sliding block is provided with a rotating handle.