Automatic pleuroperitoneal cavity nerve block gun
By designing an automatic thoracic and abdominal nerve block gun, the problems of operation difficulty and hand fatigue in the prior art are solved, the accuracy of injection dose and the convenience of surgical operation are achieved, and the flexibility of needle position is improved.
Patent Information
- Application Number
- CN202323144337.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-22
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2033-11-22
AI Technical Summary
In the prior art, the operating device for thoracic and abdominal nerve block is difficult to observe the needle position and dosage at the same time, and the hand movements need to be maintained for a long time, which can easily cause fatigue.
An automatic thoracic and abdominal nerve block gun was designed. By pre-adjusting the injection dose, the dose and liquid discharge direction can be accurately controlled without observing the syringe scale during the injection process. The hand movement does not require a long time to maintain, and the needle position is flexibly adjusted in the body.
It realizes the accuracy of the injection dose and the convenience of surgical operation, reduces the difficulty of operation and hand fatigue, improves the flexibility of the needle position, and avoids damage to other tissues.
Smart Images
Figure CN222888994U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to an automatic thoracic and abdominal nerve blocking gun. Background Art
[0002] Since nerve blocks usually act directly on the nerve plexus, many tissue structures need to be anesthetized, and there is no dedicated device for thoracic and abdominal nerve block operations, the current clinical method of using multiple devices, that is, holding the infusion needle with an oval clamp in one hand and injecting the syringe with the other hand, is difficult to operate: it is difficult to observe the position of the needle and the amount of medicine in the syringe at the same time; using the oval clamp to adjust the direction of the infusion needle is not flexible and inconvenient to operate. Therefore, there is room for improvement in the operation device of the thoracic and abdominal nerve block. Summary of the invention
[0003] The purpose of the utility model is to solve the above problems existing in the prior art, and to provide an automatic thoracic and abdominal nerve block gun, which can adjust the injection dose in advance, and can accurately control the amount of injected medicine and the direction of liquid discharge without observing the syringe scale during the injection process; the hand movement does not need to be maintained for a long time, and it is not easy to cause fatigue; the needle position can be flexibly adjusted in the body to avoid damaging other tissues. In general, the automatic thoracic and abdominal nerve block gun can be widely used in nerve block surgery, such as local anesthesia and pain management, to ensure the accuracy of the injection dose and the convenience of surgical operation.
[0004] The purpose of the utility model is achieved in the following way: a hole (2) is provided at the upper end of a gun body (1), an adjusting knob (3) passes through the hole (2), the adjusting knob (3) is connected to the upper end of an adjusting shaft (4), a spring (5) is fixed to the inner wall of the gun body (1), the upper end of the adjusting shaft (4) is close to the upper end of the gun body (1) by means of the spring (5), the lower end of the adjusting shaft (4) is connected to a relay pipe (7) by means of a thread (6), the upper right end of the relay pipe (7) is connected to a liquid storage chamber (9) by means of a first one-way valve (8), a piston (10) is embedded in the relay pipe (7), a second one-way valve (11) is provided in the center of the piston (10), the second one-way valve (11) is opened to the outflow pipe (12), the outflow pipe (12) is opened to the liquid storage chamber (9), and the liquid storage chamber (9) is connected to the liquid storage chamber (9) by means of a first one-way valve (8). The tube (12) is connected to the piston (10), the upper part of the outflow tube (12) is wrapped by the gun body (1), the lower part of the outflow tube (12) is covered with a rotating needle sleeve (13), the head end of the rotating needle sleeve (13) is connected to a bent needle (14), the left side of the relay tube (7) is fixedly connected with a trigger (15), the trigger (15) passes through the left side of the gun body (1), the moving path of the trigger (15) is limited by a slide groove (16), the upper part of the liquid storage chamber (9) is provided with a liquid inlet valve (17), the liquid inlet valve (17) is provided with a protective plug (18) at a corresponding position of the gun body (1), the middle section of the adjustment shaft (4) is embedded with a digital display (19), and the outer wall of the gun body (1) near the digital display (19) is provided with a digital display window (20). The digital display (19) is composed of an initial wheel (1901), a decimal wheel (1902), a units wheel (1903), a tens wheel (1904), a hundreds wheel (1905), a steel ball buckle (1906), a metal rod (1907), a first transmission gear (1908), a second transmission gear (1909), a third transmission gear (1910), a semi-enclosed housing (1911), and a groove (1912). The initial wheel (1901), the decimal wheel (1902), the units wheel (1903), the tens wheel (1904), and the hundreds wheel (1905) are interlocked with the adjacent wheels at the lower positions by means of the narrower lower parts in the upper and lower order. Five decimal wheel lower teeth (19021) are evenly distributed below the decimal wheel (1902), and ten units wheel upper teeth (19031) are evenly distributed above the units wheel (1903). There are ten grooves (1912). Evenly distributed on the initial wheel (1901), and matched or separated with the steel ball buckle (1906), there is one units wheel lower tooth (19032) below the units wheel (1903), ten tens wheel upper teeth (19041) are evenly distributed above the tens wheel (1904), one tens wheel lower tooth (19042) is below the tens wheel (1904), and ten hundreds wheel upper teeth (19051) are evenly distributed above the hundreds wheel (1905).A metal rod (1907) is fixed between the upper and lower parts of the semi-enclosed shell (1911), and a steel ball buckle (1906), a first transmission gear (1908), a second transmission gear (1909), and a third transmission gear (1910) are arranged on the metal rod (1907) from top to bottom.
[0005] Before injection, a sufficient amount of liquid medicine is added to the liquid storage chamber (9), and then the adjusting knob (3) is manually rotated, and the adjusting shaft (4) fixedly connected thereto drives the digital display (19) to rotate, and the corresponding injection dose can be seen in the digital display window (20), so that the injection volume of the medicine can be preset before injection, and blind injection can be performed during injection without losing the accuracy of the dose.
[0006] In addition, when the adjusting knob (3) is manually rotated, the adjusting shaft (4) rotates accordingly, the overlapping distance between the thread (6) and the relay tube (7) changes, the position of the relay tube (7) relative to the gun body (1) changes, and the maximum movable distance of the relay tube (7) relative to the piston (10) changes, thereby changing the volume of the injected medicine.
[0007] During injection, the trigger (15) needs to be pulled downward to the maximum extent, at which time the relay tube (7) moves downward, the pressure in the relay tube (7) increases, and the liquid medicine in the relay tube (7) flows into the outflow tube (12) through the second one-way valve (11).
[0008] After the injection, the trigger (15) is released, and the adjustment shaft (4) returns to its original position under the action of the spring (5). During this process, when the pressure in the relay tube (7) decreases, the liquid medicine in the liquid storage chamber (9) flows into the relay tube (7) through the first one-way valve (8), preparing for the next injection. When the rotating needle sleeve (13) rotates around the outflow tube (12), the direction of the bent needle (14) can be changed to any angle, so that the needle can be flexibly adjusted in position in the body to avoid damaging other tissues.
[0009] The adjusting shaft (4) is connected to the initial wheel (1901). When the adjusting knob (3) is turned, the adjusting knob (3) drives the adjusting shaft (4) to rotate. The adjusting shaft (4) only drives the initial wheel (1901) to rotate. The initial wheel (1901) drives the decimal wheel (1902) to rotate. Ten grooves (1912) are evenly distributed on the initial wheel (1901). Every time the initial wheel (1901) is rotated by 36 degrees, the steel ball buckle (1906) below will buckle in to position the initial wheel. Five decimal wheel lower teeth (19021) are evenly distributed below the decimal wheel (1902). The decimal wheel (1902) can drive the first transmission gear (1908) through the decimal wheel lower teeth (19021) below when the decimal wheel (1902) rotates 72 degrees. Ten units wheel upper teeth (19031) are evenly distributed above the units wheel (1903). The first transmission gear (1908) drives the units wheel (1903) to rotate 36 degrees by toggling the units wheel upper teeth (19031) above the units wheel (1903). To realize binary carry, similarly, since there is only one units wheel lower tooth (19032) under the units wheel (1903) and only one tens wheel lower tooth (19042) under the tens wheel (1904), and there are 10 hundreds wheel upper teeth (19051) evenly distributed above the hundreds wheel (1905), the units wheel (1903) drives the tens wheel (1904) in a similar manner to realize decimal carry, and the tens wheel (1904) also drives the hundreds wheel (1905) in a similar manner to realize decimal carry. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall appearance of the utility model.
[0011] Figure 2 It is a schematic diagram of the internal structure of the utility model.
[0012] Figure 3 It is a schematic diagram of the structure of the digital display of the utility model.
[0013] Figure 1 , 2 In: 1. Gun body; 2. Hole; 3. Adjustment knob; 4. Adjustment shaft; 5. Spring; 6. Thread; 7. Relay tube; 8. First one-way valve; 9. Liquid storage chamber; 10. Piston; 11. Second one-way valve; 12. Outflow tube; 13. Rotating needle sleeve; 14. Bending needle; 15. Trigger; 16. Slide; 17. Liquid inlet valve; 18. Protective plug; 19. Digital display; 20. Digital display window.
[0014] Figure 3In: 19, digital display; 1901, initial wheel; 1902, decimal wheel; 1903, units wheel; 1904, tens wheel; 1905, hundreds wheel; 1906, steel ball buckle; 1907, metal rod; 1908, first transmission gear; 1909, second transmission gear; 1910, third transmission gear; 1911, semi-enclosed housing; 1912, groove; 19021, lower teeth of decimal wheel; 19031, upper teeth of units wheel; 19032, lower teeth of units wheel; 19041, upper teeth of tens wheel; 19042, lower teeth of tens wheel; 19051, upper teeth of hundreds wheel. DETAILED DESCRIPTION
[0015] 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 in conjunction with embodiments and drawings.
[0016] like Figure 1-Figure 3 As shown, the automatic thoracic and abdominal nerve blocking gun provided in this embodiment includes a gun body 1 and an adjusting knob 3. The upper end of the gun body 1 is provided with a channel 2, and the adjusting knob 3 passes through the channel 2. The adjusting knob 3 is connected to the upper end of the adjusting shaft 4. A spring 5 is fixed to the inner wall of the gun body 1. The upper end of the adjusting shaft 4 is close to the upper end of the gun body 1 by means of the spring 5. The lower end of the adjusting shaft 4 is connected to the relay tube 7 by means of a thread 6. The upper right end of the relay tube 7 is connected to the liquid storage chamber 9 by means of a first one-way valve 8. A piston 10 is embedded in the relay tube 7. A second one-way valve 11 is provided in the center of the piston 10. The second one-way valve 11 is connected to the flow The outlet tube 12 is open, and the outlet tube 12 is connected to the piston 10. The upper part of the outlet tube 12 is wrapped by the gun body 1. The lower part of the outlet tube 12 is covered with a rotating needle sleeve 13. The head end of the rotating needle sleeve 13 is connected to a bent needle 14. A trigger 15 is fixedly connected to the left side of the relay tube. The trigger 15 passes through the left side of the gun body 1. The moving path of the trigger 15 is limited by the slide groove 16. A liquid inlet valve 17 is provided on the upper part of the liquid storage chamber 9. The liquid inlet valve 17 is provided with a protective plug 18 at the corresponding position of the gun body 1. A digital display 19 is nested outside the middle section of the adjusting shaft 4, and a digital display window 20 is provided on the outer wall of the gun body 1 near the digital display 19.
[0017] The digital display 19 is composed of an initial wheel 1901, a decimal wheel 1902, a units wheel 1903, a tens wheel 1904, a hundreds wheel 1905, a steel ball buckle 1906, a metal rod 1907, a first transmission gear 1908, a second transmission gear 1909, a third transmission gear 1910, a semi-enclosed housing 1911, and a groove 1912. The initial wheel 1901, decimal wheel 1902, units wheel 1903, tens wheel 1904 and hundreds wheel 1905 are fitted with the adjacent wheels at the lower position in the up-down order by means of the narrower lower part. Five decimal wheel lower teeth 19021 are evenly distributed below the decimal wheel 1902, ten units wheel upper teeth 19031 are evenly distributed above the units wheel 1903, there are ten grooves 1912, which are evenly distributed on the initial wheel 1901 and coincide with or separate from the steel ball buckle 1906, one units wheel lower tooth 19032 is provided below the units wheel 1903, ten tens wheel upper teeth 19041 are evenly distributed above the tens wheel 1904, one tens wheel lower tooth 19042 is provided below the tens wheel 1904, and ten hundreds wheel upper teeth 19051 are evenly distributed above the hundreds wheel 1905. A metal rod 1907 is fixed between the upper and lower parts of the semi-enclosed shell 1911 , and a steel ball buckle 1906 , a first transmission gear 1908 , a second transmission gear 1909 , and a third transmission gear 1910 are arranged on the metal rod 1907 from top to bottom.
[0018] The upper end of the adjusting shaft 4 is close to the upper end of the gun body 1 by means of a spring 5 , the lower end of the adjusting shaft 4 is connected to the relay pipe 7 by means of a thread 6 , and the outflow pipe 12 is connected to the piston 10 , and the outflow pipe upper 12 is wrapped and connected by the gun body 1 .
[0019] The relay pipe 7 is connected to the liquid storage chamber 9 by means of a first one-way valve 8 , and the lower part of the relay pipe 7 is slidably connected to the piston 10 . A second one-way valve 11 is provided in the center of the piston 10 , and the second one-way valve 11 leads to an outflow pipe 12 .
[0020] The lower part of the outflow tube 12 is covered with a rotating needle sleeve 13, and the head end of the rotating needle sleeve 13 is connected to the curved needle 14. The liquid inlet valve 17 is made of medical silicone and can quickly block the hole when the syringe is pulled out. The length of the outflow tube 12 can be changed according to different injection depths or other different medical needs. The gun body outside the liquid storage chamber 9 is transparent so that the operator can visually monitor the residual amount of the liquid and add liquid.
[0021] The trigger 15 is arc-shaped and ergonomically designed to provide better grip and control.
[0022] Although the implementation methods disclosed in the utility model are as above, the above contents are only the implementation methods adopted for facilitating the understanding of the utility model, and are not used to limit the utility model. Any technician in the technical field to which the utility model belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be based on the scope defined in the attached claims.
Claims
1. An automatic thoracic and abdominal nerve block gun, Features: An automatic thoracic and abdominal nerve blocking gun comprises a gun body (1) and an adjusting knob (3). The upper end of the gun body (1) is provided with a hole (2), the adjusting knob (3) passes through the hole (2), the adjusting knob (3) is connected to the upper end of an adjusting shaft (4), a spring (5) is fixed to the inner wall of the gun body (1), the upper end of the adjusting shaft (4) is close to the upper end of the gun body (1) by means of the spring (5), the lower end of the adjusting shaft (4) is connected to a relay tube (7) by means of a thread (6), the upper right end of the relay tube (7) is connected to a liquid storage chamber (9) by means of a first one-way valve (8), a piston (10) is embedded in the relay tube (7), a second one-way valve (11) is provided in the center of the piston (10), and the second one-way valve (11) flows to an outflow pipe (12). The outlet tube (12) is connected to the piston (10), the upper part of the outlet tube (12) is wrapped by the gun body (1), the lower part of the outlet tube (12) is covered with a rotating needle sleeve (13), the head end of the rotating needle sleeve (13) is connected to a bent needle (14), the left side of the relay tube is fixedly connected with a trigger (15), the trigger (15) passes through the left side of the gun body (1), the moving path of the trigger (15) is limited by a slide groove (16), the upper part of the liquid storage chamber (9) is provided with a liquid inlet valve (17), the liquid inlet valve (17) is provided with a protective plug (18) at a corresponding position of the gun body (1), the middle section of the adjusting shaft (4) is embedded with a digital display (19), and the outer wall of the gun body (1) near the digital display (19) is provided with a digital display window (20).
2. An automatic thoracic and abdominal nerve blocking gun according to claim 1, Its characteristics are: The digital display (19) consists of an initial wheel (1901), a decimal wheel (1902), a units wheel (1903), a tens wheel (1904), a hundreds wheel (1905), a steel ball buckle (1906), a metal rod (1907), a first transmission gear (1908), a second transmission gear (1909), a third transmission gear (1910), a semi-enclosed housing (1911), and a groove (1912); the initial wheel (1901), the decimal wheel (1902), the units wheel (1903), the tens wheel (1904), and the hundreds wheel (1905) are nested with the adjacent lower wheels in the upper and lower order by their relatively narrow lower parts. Five lower decimal teeth (19021) are evenly distributed below the decimal wheel (1902), and ten upper units teeth (19031) are evenly distributed above the units wheel (1903). There are 10 grooves (1912), which are evenly distributed on the initial wheel (1901) and are mated or separated from the steel ball buckle (1906). There is 1 lower units tooth (19032) below the units wheel (1903), ten upper tens teeth (19041) are evenly distributed above the tens wheel (1904), and 1 lower tens tooth (19042) is below the tens wheel (1904). Ten upper hundreds teeth (19051) are evenly distributed above the hundreds wheel (1905); a metal rod (1907) is fixed between the upper and lower parts of the semi-enclosed housing (1911), and the steel ball buckle (1906), the first transmission gear (1908), the second transmission gear (1909), and the third transmission gear (1910) are arranged on the metal rod (1907) from top to bottom.
3. An automatic thoracic and abdominal nerve block gun according to claim 1, characterized in that: the upper end of the adjusting shaft (4) is close to the upper end of the gun body (1) by means of a spring (5), the lower end of the adjusting shaft (4) is connected to the relay tube (7) by means of a thread (6), and the outflow tube (12) is connected to the piston (10), and the outflow tube (12) is wrapped and connected by the gun body (1).
4. An automatic thoracic and abdominal nerve block gun according to claim 1, characterized in that: the relay tube (7) is connected to the liquid storage chamber (9) by means of a first one-way valve (8), the lower part of the relay tube (7) is slidably connected to the piston (10), and the second one-way valve (11) leads to the outflow tube (12).
5. An automatic thoracic and abdominal nerve block gun according to claim 1, characterized in that: a rotating needle sleeve (13) is sleeved outside the lower part of the outflow tube (12), and the head end of the rotating needle sleeve (13) is connected to a curved needle (14).
6. An automatic thoracic and abdominal nerve block gun according to claim 1, characterized in that: the liquid inlet valve (17) is made of medical silicone and can quickly block the penetrated hole when the syringe is pulled out.
7. An automatic thoracic and abdominal nerve block gun according to claim 1, characterized in that: the length of the outflow tube (12) can be changed according to different injection depths or other different medical needs.
8. An automatic thoracic and abdominal nerve block gun according to claim 1, Its characteristics are: The gun body outside the liquid storage chamber (9) is transparent so that the operator can visually monitor the residual amount of the liquid and add liquid.
9. The automatic thoracic and abdominal nerve blocking gun according to claim 1, Its characteristics are: The trigger (15) is arc-shaped and ergonomically designed to provide better grip and control.