Local administration device for bronchoscope

Abstract

The local dosing device comprises a main pipe, an injector butt joint and a conical end, a baffle is arranged in the middle of the interior of the main pipe and divides an inner cavity of the main pipe into two channels, the injector butt joint is arranged at the upper end of the main pipe, and the conical end is arranged at the lower end of the main pipe. The injector butt joint is provided with two injection ports corresponding to the two channels in a one-to-one mode, the lower end of the main pipe is provided with a conical end, the lower end of the conical end is provided with a silica gel spraying head, and the lower end of the silica gel spraying head is provided with a plurality of spraying holes capable of being closed. A wire drawing structure moving up and down is installed in the middle of the baffle, and a push block structure connected with the lower end of the wire drawing structure is installed in the lower end of the silica gel spraying head. The device has the characteristics of accurate control of the medicine injection amount, simple structure, convenience in manufacturing, improvement of the treatment effect and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of bronchoscope drug delivery, and particularly to a local drug delivery device for a bronchoscope. Background Art

[0002] The bronchoscope is an important endoscopic examination tool, suitable for observing, biopsy sampling, bacteriology, and cytology examination of bronchial lesions in lung lobes, segments, and sub-segments. When a patient's lungs are in a critical condition, a doctor will use a drug delivery device to directly guide the drug to the infected location of the patient, which can greatly improve the treatment effect. The drug delivery device usually enters the patient's lungs through the side channel of the bronchoscope, and at the same time, the bronchoscope is used to facilitate the direct injection of the drug into the diseased area of the lungs. This conventional operation has a drawback, that is, since the drug delivery device itself is a slender pipe structure, it cannot exhaust air, and the drug amount cannot be accurately controlled during drug injection, which greatly affects the treatment effect. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a local drug delivery device for a bronchoscope, which has the characteristics of accurately controlling the drug injection amount, simple structure, convenient manufacturing, and improving the treatment effect.

[0004] The technical solution adopted by the present invention to solve its technical problems is: to provide a local drug delivery device for a bronchoscope, including a main tube, a syringe docking head, and a conical end. A baffle is provided in the middle of the interior of the main tube, and the baffle divides the inner cavity of the main tube into two channels. The upper end of the main tube is provided with a syringe docking head, and two injection ports corresponding to the two channels are provided on the syringe docking head. The lower end of the main tube is installed with a conical end, and a silica gel spray head is provided at the lower end of the conical end. A plurality of closable spray holes are provided on the lower end of the silica gel spray head. A wire drawing structure that moves up and down is installed in the middle of the baffle, and a push block structure connected to the lower end of the wire drawing structure is installed inside the lower end of the silica gel spray head;

[0005] When the wire drawing structure moves upward, the wire drawing structure pulls the push block structure, the push block structure pushes the rubber head body, the rubber head body is squeezed and deformed, and the closable spray holes are squeezed and closed.

[0006] In this technical solution, a main tube is provided to serve as the main body for inserting the bronchoscope. At the same time, two channels are provided to facilitate the injection of liquid medicine. When injecting the liquid medicine, one channel serves as the injection channel, and the other channel serves as the exhaust channel. By setting a syringe adapter, it is convenient to set up injection ports that are docked with the two channels. By setting a conical end to serve as a structure for the liquid medicine to flow back, it is convenient for the liquid medicine to fill the two channels. By setting a silicone spray head and a closable spray hole, it is convenient to block the silicone spray head to achieve the backflow filling of the liquid medicine. By setting a wire-drawing structure and a push block structure, the rubber head body is squeezed to close the closable spray hole.

[0007] When filling the liquid medicine, first dock a syringe with an injection port. Then, pull the wire-drawing structure. The wire-drawing structure moves upward, pulling the push block structure. The push block structure squeezes the rubber head body, and the rubber head body deforms to close the closable spray hole. Then, push the syringe to inject the liquid medicine into one of the channels. The air in the main tube is discharged from the other channel until the liquid levels in the two channels are flush, and it is ensured through the indication on the main tube that there is 5 ml of liquid medicine in the main tube. At this time, the liquid medicine below the indication on the main tube is in a full state, and no air is injected during the injection of the liquid medicine.

[0008] When filling the liquid medicine, the main tube under the bronchoscope is aligned with the patient's position, and the conical end and the silicone spray head can be inserted into the patient's position. Then, open the wire-drawing structure. The rubber head body returns to its original state under the elastic action, opening the closable spray hole. Then, draw 5 ml of air into the double-headed syringe. Then, dock the syringe adapter with the two injection ports of the syringe adapter. Then, push the double-headed syringe, and the air in the double-headed syringe enters the main tube, and the liquid medicine in the main tube sprays out from the closable spray hole.

[0009] The doctor observes the degree of the patient's illness in the lungs through the bronchoscope. According to the degree of the patient's illness, the injection amount of the medicine is determined. The injection amounts are 1 ml, 2 ml, and 3 ml. After injecting one infection point each time, the injection point can be moved to inject and treat the second infection point. According to the indication scale on the double-headed syringe, the injection amount of the medicine can be accurately controlled, greatly improving the treatment effect of the lungs. When all 5 ml of the liquid medicine is injected, the above liquid medicine filling steps can be repeated to complete the second liquid medicine filling.

[0010] As a supplement to this technical solution, a handle structure is provided at the upper end of the wire-drawing structure. At the front side of the upper end of the baffle, a wire-drawing chute with an upper end bent toward one side is provided. The bent part of the wire-drawing chute is used to facilitate the formation of a limit with the handle structure of the wire-drawing structure.

[0011] In this technical solution, a handle structure is provided to facilitate the pulling of the wire drawing structure, a wire drawing chute is provided to facilitate the movement of the wire drawing structure, and a bent end is provided to facilitate the insertion of the handle structure into the bent end, thereby facilitating the fixation of the wire drawing structure.

[0012] As a supplement to this technical solution, a transparent observation window is provided on the front side of the upper end of the main tube, and a liquid medicine indicating strip is provided on the observation window. The transparent observation window is provided to facilitate the observation of the liquid medicine, and the liquid medicine indicating strip is provided to facilitate the indication of the filling amount of the liquid medicine in the main tube.

[0013] As a supplement to this technical solution, a double-hole syringe limiting port is provided at the upper end of the syringe docking head. The double-hole syringe limiting port is provided to facilitate the limiting docking of the double-headed syringe.

[0014] As a supplement to this technical solution, the conical end includes a hard cone head. The hard cone head is in the shape of a frustum of a cone with a larger upper part and a smaller lower part. The hard cone head is docked with the lower end of the main tube, and a return flow cavity communicating with the two channels is provided inside the hard cone head.

[0015] In this technical solution, the hard cone head is provided to improve the structural strength at this place and facilitate the insertion into the patient's position. The return flow cavity is provided to facilitate the return flow of the liquid medicine so that the two channels can both have liquid medicine.

[0016] As a supplement to this technical solution, a layer of silica gel layer is provided on the outer conical surface of the hard cone head. In this technical solution, the silica gel layer is provided to facilitate the reduction of the discomfort during insertion.

[0017] As a supplement to this technical solution, the silica gel spray head includes a rubber head body. A spray cavity communicating with the return flow cavity is provided at the upper end of the rubber head body. The closable spray hole communicates with the spray cavity. The rubber head body is made of silica gel material, and the return flow cavity is used to concentrate the liquid medicine.

[0018] As a supplement to this technical solution, a number of vertically extending vertical fibers are evenly provided at the edge of the upper end surface of the push block structure. The vertical fibers are provided to facilitate the push block structure to drive the deformation of the silica gel spray head and ensure the closure of the closable spray hole.

[0019] As a supplement to this technical solution, not less than one pair of sealing ribs are provided on the outer circle of the conical end. The sealing ribs are provided to improve the sealing effect of the conical end and prevent the overflow of the liquid medicine.

[0020] As a supplement to this technical solution, one of the two channels of the main tube serves as a liquid inlet channel, and the other serves as an exhaust channel.

[0021] Beneficial effects: The present invention relates to a local drug delivery device for a bronchoscope. By providing a main tube as the body for inserting the bronchoscope, and two channels for facilitating the injection of the liquid medicine. When injecting the liquid medicine, one channel serves as the injection channel and the other as the exhaust channel. By providing a syringe docking head for conveniently setting the injection ports docked with the two channels, a conical end is provided as the structure for the liquid medicine to flow back, facilitating the filling of the two channels with the liquid medicine. By providing a silicone injection head and a closable injection hole for conveniently blocking the silicone injection head to achieve the backflow filling of the liquid medicine, and a wire-drawing structure and a push block structure are provided to squeeze the rubber head body to close the closable injection hole, which has the characteristics of accurately controlling the drug injection amount, simple structure, convenient manufacturing, and improving the treatment effect. Description of the Drawings

[0022] Figure 1 is the front view of the present invention;

[0023] Figure 2 is Figure 1 the sectional view taken along the A-A direction in

[0024] Figure 3 is the right view of the present invention;

[0025] Figure 4 is Figure 3 the sectional view taken along the B-B direction in

[0026] Figure 5 is Figure 2 the partial enlarged view at C in

[0027] Figure 6 is Figure 2 the partial enlarged view at D in

[0028] Figure 7 is Figure 4 the partial enlarged view at E in

[0029] Figure 8 is Figure 4 the partial enlarged view at F in

[0030] Figure 9 is the top view of the syringe docking head described above;

[0031] Figure 10 is the top view of the main tube described above.

[0032] Illustration: 1. Main tube, 2. Syringe docking head, 3. Conical end, 4. Silicone injection head, 5. Wire drawing chute, 6. Observation window, 7. Liquid medicine indicator strip, 8. Baffle, 9. Wire drawing structure, 10. Variable flange, 11. Double-hole syringe limit port, 12. Channel, 13. Hard cone head, 14. Return cavity, 15. Silicone layer, 16. Rubber head body, 17. Injection cavity, 18. Closable injection hole, 19. Pusher block structure, 20. Vertical fiber. Detailed implementation mode

[0033] The following further elaborates on the present invention in combination with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0034] The implementation mode of the present invention relates to a local drug delivery device for a bronchoscope, as Figure 1 shown in FIG. 4, including a main tube 1, a syringe docking head 2 and a conical end 3. A baffle 8 is arranged in the middle of the interior of the main tube 1. The baffle 8 divides the inner cavity of the main tube 1 into two channels 12. The upper end of the main tube 1 is provided with a syringe docking head 2. Two injection ports 11 corresponding to the two channels 12 are arranged on the syringe docking head 2. The lower end of the main tube 1 is installed with a conical end 3. The lower end of the conical end 3 is provided with a silicone injection head 4. A number of closable injection holes 18 are arranged on the lower end of the silicone injection head 4. A wire drawing structure 9 that moves up and down is installed in the middle of the baffle 8. A pusher block structure 19 connected to the lower end of the wire drawing structure 9 is installed inside the lower end of the silicone injection head 4;

[0035] When the wire drawing structure 9 moves upward, the wire drawing structure 9 pulls the pusher block structure 19, the pusher block structure 19 pushes the rubber head body 16, the rubber head body 16 is squeezed and deformed, and the closable injection holes 18 are squeezed and closed.

[0036] As Figure 9 and Figure 10As shown, in this technical solution, the main tube 1 is provided as the main body for inserting the bronchoscope. At the same time, two channels 12 are provided to facilitate the injection of liquid medicine. When injecting the liquid medicine, one channel 12 serves as the injection channel, and the other channel 12 serves as the exhaust channel. By setting the syringe docking head 2, it is convenient to set the injection port 11 that docks with the two channels 12. By setting the conical end 3 as the structure for the liquid medicine to flow back, it is convenient for the liquid medicine to fill the two channels 12. By setting the silicone spray head 4 and the closable spray hole 18, it is convenient to block the silicone spray head 4 to achieve the liquid medicine reflux filling. By setting the wire-drawing structure 9 and the push-block structure 19, the rubber head body 16 is extruded to close the closable spray hole 18.

[0037] When filling the liquid medicine, first dock a syringe with an injection port 11. Then pull the wire-drawing structure 9. The wire-drawing structure 9 moves upward, pulling the push-block structure 19. The push-block structure 19 extrudes the rubber head body 16, and the rubber head body 16 deforms to close the closable spray hole 18. Then push the syringe to inject the liquid medicine into one of the channels 12. The air in the main tube 1 is discharged from the other channel 12 until the liquid levels in the two channels 12 are flush. And through the indication on the main tube 1, ensure that there is 5 ml of liquid medicine in the main tube 1. At this time, the liquid medicine below the indication of the main tube 1 is in a full state, and no air is injected during the liquid medicine injection.

[0038] When filling the liquid medicine, align the main tube 1 under the bronchoscope with the position of the patient, and the conical end 3 and the silicone spray head 4 can be inserted into the patient's position. Then open the wire-drawing structure 9. The rubber head body 16 recovers under the elastic action, making the closable spray hole 18 open. Then draw 5 ml of air into the double-headed syringe. Then dock the syringe docking head 2 with the two injection ports 11 of the syringe docking head 2. Then push the double-headed syringe, and the air in the double-headed syringe enters the main tube 1. The liquid medicine in the main tube 1 sprays out from the closable spray hole 18.

[0039] The doctor observes the degree of the patient's lung disease through the bronchoscope. According to the degree of the patient's disease, determine the injection volume of the drug. The injection volumes are 1 ml, 2 ml, and 3 ml. After injecting one infection point each time, the injection point can be moved to inject and treat the second infection point. According to the indication scale on the double-headed syringe, accurately control the injection volume of the drug, greatly improving the treatment effect of the lungs. When all 5 ml of the liquid medicine is injected, the above liquid medicine filling steps can be repeated to complete the second liquid medicine filling.

[0040] Such as Figure 5 and Figure 6As shown in the figure, as a supplement to the present technical solution, a handle structure is provided at the upper end of the wire drawing structure 9, and a wire drawing chute 5 with an upper end bent towards one side is provided at the front side of the upper end of the baffle 8. The bent portion of the wire drawing chute 5 is used to facilitate the formation of a limit with the handle structure of the wire drawing structure 9.

[0041] In the present technical solution, a handle structure is provided to facilitate the pulling of the wire drawing structure 9, a wire drawing chute 5 is provided to facilitate the movement of the wire drawing structure 9, and a bent end is provided to facilitate the insertion of the handle structure into the bent end, thereby facilitating the fixation of the wire drawing structure 9.

[0042] As a supplement to the present technical solution, a transparent observation window 6 is provided at the front side of the upper end of the main pipe 1, and a liquid medicine indication strip 7 is provided on the observation window 6. The transparent observation window 6 is provided to facilitate the observation of the liquid medicine, and the liquid medicine indication strip 7 is provided to facilitate the indication of the filling amount of the liquid medicine in the main pipe 1.

[0043] As a supplement to the present technical solution, a double-hole syringe limit port 10 is provided at the upper end of the syringe docking head 2. The double-hole syringe limit port 10 is provided to facilitate the limit docking of the double-headed syringe.

[0044] As Figure 5 As shown in Figure 8, as a supplement to the present technical solution, the conical end 3 includes a hard cone head 13. The hard cone head 13 has a conical shape with a larger upper part and a smaller lower part. The hard cone head 13 is docked with the lower end of the main pipe 1, and a return flow cavity 14 communicating with the two channels 12 is provided inside the hard cone head 13.

[0045] In the present technical solution, the hard cone head 13 is provided to improve the structural strength at this part and facilitate the insertion into the patient's position, and the return flow cavity 14 is provided to facilitate the return flow of the liquid medicine so that the liquid medicine can be present in both channels 12.

[0046] As a supplement to the present technical solution, a layer of silica gel layer 15 is provided on the outer conical surface of the hard cone head 13. In the present technical solution, the silica gel layer 15 is provided to facilitate the reduction of the discomfort during insertion.

[0047] As a supplement to the present technical solution, the silica gel spray head 4 includes a rubber head body 16. A spray cavity 17 communicating with the return flow cavity 14 is provided at the upper end of the rubber head body 16. The closable spray hole 18 communicates with the spray cavity 17. The rubber head body 16 is made of silica gel material, and the return flow cavity 14 is used to concentrate the liquid medicine.

[0048] As a supplement to this technical solution, a number of vertically extending vertical fibers 20 are uniformly arranged at the edge of the upper end surface of the push block structure 19. By providing the vertical fibers 20, it is convenient for the push block structure 19 to drive the deformation of the silica gel spray head 4, ensuring the closure of the spray hole 18 that can be closed.

[0049] As a supplement to this technical solution, no less than one pair of sealing ribs are provided on the outer ring of the conical end 3. By providing the sealing ribs, the sealing effect of the conical end 3 is improved to prevent the overflow of the liquid medicine.

[0050] As a supplement to this technical solution, the two channels 12 of the main pipe 1, one is used as the liquid inlet channel and the other is used as the exhaust channel.

[0051] Embodiment 1

[0052] When the wire drawing structure 9 moves upward, the wire drawing structure 9 pulls the push block structure 19, the push block structure 19 pushes the rubber head body 16, the rubber head body 16 deforms, and after the rubber head body 16 is extruded and deformed, the spray hole 18 is squeezed and closed.

[0053] When precise injection is carried out, the rubber head body 16 is in an extruded state. First, inject the liquid medicine into the main pipe 1 through an injection port 11. Select a conventional syringe with 5 ml of liquid medicine, insert the injection end of the conventional syringe into the injection port 11, and then inject the liquid medicine. The liquid medicine enters the main pipe 1 along one channel 12, and the air in the main pipe 1 is discharged from the upper end of the other channel 12. After completion, perform liquid level debugging. Through the observation window 6, observe the liquid levels of the two channels 12. By injecting appropriate air, the air squeezes the liquid medicine so that the liquid levels on the two channels 12 are flush, and the liquid level needs to be flush with the liquid medicine indicator strip 7, indicating that 5 ml of liquid medicine has been retained in the main pipe 1. Then insert this device into the patient's lungs from the endoscope. Then take out a double-headed syringe with 5 ml of air retained in it. Then perform precise positioning. Under the action of the endoscope camera viewer, the doctor moves the lower end of the main pipe 1, and the conical end 3 and the silica gel spray head 4 are inserted into the patient's position. Then inject the liquid medicine. Push the double-headed syringe. If 1 ml of liquid medicine is to be injected, then push the double-headed syringe so that the double-headed syringe ejects 1 ml of air. Then move the lower end of the main pipe 1, change the injection position of the main pipe 1, and then perform the second liquid medicine injection.

[0054] Embodiment 2

[0055] When this device is selected for production, first, through a plastic drawing mold, the main tube 1, the baffle 8, the syringe docking head 2, and the hard cone head 13 are formed. After completion, the product is removed, the wire drawing structure 9 is installed, and the push block structure 19 is installed at the lower end of the wire drawing structure 9. Then, through the mold, the silicone injection head 4, the silicone layer 15, and the hard cone head 13 are docked. The silicone injection head 4 is combined with the push block structure 19. After completion, the hole-opening operation is carried out, and the closable injection hole 18 is formed by needle puncture. Then, the wire drawing chute 5 is opened through the opening device, and the upper end of the wire drawing structure 9 is bent with tweezers so that a handle structure is formed at the upper end of the wire drawing structure 9. Finally, the upper end of the main tube 1 is cut by a cutter so that a circle of voids is formed at the upper end of the main tube 1. After completion, a circle of transparent rubber layer is wound around the voids, and the rubber layer and the main tube 1 are integrated by heat melting, and a sealed docking is formed between the rubber layer and the main tube 1.

Claims

1. A local drug delivery device for a bronchoscope, characterized in that: It includes a main pipe (1), a syringe docking head (2) and a conical end (3). A baffle (8) is arranged at the middle inside of the main pipe (1). The baffle (8) divides the inner cavity of the main pipe (1) into two channels (12). The syringe docking head (2) is arranged at the upper end of the main pipe (1). Two injection ports (11) corresponding to the two channels (12) one by one are arranged on the syringe docking head (2). The conical end (3) is installed at the lower end of the main pipe (1). A silicone injection head (4) is arranged at the lower end of the conical end (3). A number of closable injection holes (18) are arranged on the lower end of the silicone injection head (4). A wire drawing structure (9) that moves up and down is installed at the middle of the baffle (8). A push block structure (19) connected to the lower end of the wire drawing structure (9) is installed inside the lower end of the silicone injection head (4); When the wire drawing structure (9) moves upward, the wire drawing structure (9) pulls the push block structure (19), the push block structure (19) pushes the rubber head body (16), the rubber head body (16) is extruded and deformed, and the closable injection holes (18) are squeezed and closed.

2. The local drug delivery device for a bronchoscope according to claim 1, wherein: A handle structure is arranged at the upper end of the wire drawing structure (9). A wire drawing chute (5) with an upper end bent to one side is arranged at the front side of the upper end of the baffle (8). The bent part of the wire drawing chute (5) is used to facilitate the formation of a limit with the handle structure of the wire drawing structure (9).

3. The local drug delivery device for a bronchoscope according to claim 1, wherein: A transparent observation window (6) is arranged at the front side of the upper end of the main pipe (1). A liquid medicine indication strip (7) is arranged on the observation window (6).

4. The local drug delivery device for a bronchoscope according to claim 1, wherein: A double-hole syringe limit port (10) is arranged at the upper end of the syringe docking head (2).

5. The local drug delivery device for a bronchoscope according to claim 1, characterized in that: The conical end (3) includes a hard cone head (13). The hard cone head (13) is in the shape of a frustum of a cone with a larger upper part and a smaller lower part. The hard cone head (13) is docked with the lower end of the main pipe (1). A return cavity (14) communicating with the two channels (12) is arranged inside the hard cone head (13).

6. The local drug delivery device for a bronchoscope according to claim 5, wherein: A layer of silicone layer (15) is arranged on the outer conical surface of the hard cone head (13).

7. The local drug delivery device for a bronchoscope according to claim 1, wherein: The silicone injection head (4) includes a rubber head body (16). An injection cavity (17) communicating with the return cavity (14) is arranged at the upper end of the rubber head body (16). The closable injection holes (18) communicate with the injection cavity (17).

8. The local drug delivery device for a bronchoscope according to claim 1, characterized in that: A number of vertically extending vertical fibers (20) are uniformly arranged at the edge of the upper end surface of the push block structure (19).

9. The local drug delivery device for a bronchoscope according to claim 1, wherein: Not less than one pair of sealing ribs are arranged on the outer circle of the conical end (3).

10. A local drug delivery device for a bronchoscope according to claim 1, characterized in that: One of the two channels (12) of the main pipe (1) serves as a liquid inlet channel, and the other serves as an exhaust channel.

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