Anorectal dosing device for digestive system

Abstract

The utility model discloses an anorectal dosing device for digestive system relates to medical instrument technical field, including barrel and needle tube fixedly connected to barrel one end, barrel side wall center is equipped with the channel no. 1 that runs through along its axial direction, needle tube side wall center is equipped with the channel no. 2 that runs through along its axial direction, and the channel no. The end, away from the needle tube, in the first channel is slidably connected with a piston push rod, and the end, away from the cylinder body, of the needle tube is provided with an inner supporting mechanism. According to the anal dilatation device, through the inner supporting mechanism, anal dilatation can be carried out on a patient properly, sphincter inside and outside an anal tube is relaxed, medicine can be conveniently conveyed to the rectum or a deeper position through the anus, a better treatment effect is achieved, meanwhile, blood circulation around the anus can be promoted through proper anal dilatation, absorption and metabolism of the medicine are accelerated, and the anal dilatation effect is improved. Meanwhile, the grooves formed in the edges of the side walls, close to each other, of the limiting blocks can ensure that secondary injury to the patient is avoided when the inner supporting mechanism retracts.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical appliance technical field, concretely is a kind of anus and intestinal dosing device for digestive system. BACKGROUND

[0002] Anus and intestinal dosing device is a kind of medical instrument, for directly delivering drug or therapeutic liquid to anus and rectum inside, so that drug can directly contact to affected area, improve treatment effect, use anus and intestinal dosing device can avoid that esophagus, stomach acid environment destroys drug, reduce the irritation brought by oral drug, protect the mucosa of gastrointestinal tract, and reduce the adverse reactions such as drug metabolism and drug side effects, reduce the metabolism and digestive process of drug, to improve the utilization rate of drug.

[0003] Some anus and intestinal dosing devices, using method is that dosing device is applied after being inserted into patient anus with subsequent injection drug, but due to the sphincter at anus is in closed state, this not only makes drug unable to quickly reach lesion, and drug absorption rate is low.

[0004] Therefore, the present application is proposed. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of anus and intestinal dosing device for digestive system, to solve the problems presented in the above background.

[0006] To solve the above technical problems, the utility model provides a kind of anus and intestinal dosing device for digestive system, including cylinder and the needle tube being fixedly connected to one end of cylinder, the passage one being passed through along its axial direction is established at the center of one side wall of cylinder, the passage two being passed through along its axial direction is established at the center of one side wall of needle tube, the passage one and the passage two are mutually penetrated, the piston push rod is slidably connected to the end of the passage one away from needle tube, the inner support mechanism is installed at the end of needle tube away from cylinder, the inner support mechanism includes a plurality of limit blocks being annular array distribution and being arranged on the outer arc wall of needle tube, a plurality of limit blocks form an ellipsoid after abutting each other, and the end of needle tube away from cylinder is located inside a plurality of limit blocks, and the outer arc wall of the end of needle tube away from cylinder is provided with internal thread.

[0007] Further, the end of the outer arc wall of needle tube away from cylinder is provided with a plurality of slide grooves one being annular array distribution along the axial direction of needle tube, a plurality of slide grooves one and a plurality of limit blocks one are one-to-one corresponding, two slide blocks one are slidably connected in the slide groove one, the same fixed rod is fixedly connected on the side wall of two slide blocks one away from each other, and the fixed lug one is fixedly connected on the side wall of slide block one away from needle tube.

[0008] Further, the fixed lug one on the slider one is rotationally connected with a connecting piece at the end away from the slider one, the connecting piece is rotationally connected with a fixed lug two at the end away from the fixed lug one, the fixed lug two is fixedly connected with the inner arc wall of the limiting block at the end away from the connecting piece, the inner arc wall of the limiting block is fixedly connected with a limiting rod at the two sides of the end close to the cylinder, the length direction of the limiting rod is parallel to the radial direction of the needle tube, the outer arc wall of the needle tube is provided with a slot one at the position corresponding to the limiting rod, the limiting rod is matched with the slot one, and the slot one is not in contact with the sliding groove one.

[0009] Further, the sliding groove one on the needle tube is provided with a horizontal channel three at the end close to the cylinder, the length direction of the channel three is parallel to the axial direction of the needle tube, a sliding groove two is arranged at the side away from the sliding groove one, the longitudinal section of the sliding groove two is annular, and the sliding groove two is coaxially arranged with the needle tube, and the sliding groove two is provided with a through slot one at the top end of the side away from the channel three.

[0010] Further, the outer arc wall of the cylinder is provided with a sliding groove three at the top end, the sliding groove three is in the shape of "L", the vertical part of the sliding groove three is arranged towards the needle tube, and the horizontal part of the sliding groove three is arranged away from the needle tube, the sliding groove three is slidably connected with a slider two, the inner wall of the cylinder is provided with a through slot two at the end close to the needle tube, and the through slot two is in communication with the through slot one.

[0011] Further, the sliding groove three and the through slot two in the cylinder are in communication with the through slot one, the sliding groove two, the channel three and the sliding groove one in the needle tube, the sliding groove two is slidably connected with a fixed ring, and the side wall close to the cylinder and the top end of the side wall away from the cylinder of the fixed ring are fixedly connected with fixed ropes of the same structure.

[0012] Further, the fixed rope fixedly connected with the side wall close to the cylinder of the fixed ring sequentially passes through the sliding groove two, the through slot one, the through slot two, the sliding groove three and is fixedly connected with the slider two, and the fixed rope fixedly connected with the side wall away from the cylinder of the fixed ring sequentially passes through the sliding groove two, the channel three and the sliding groove one and is fixedly connected with the slider one.

[0013] Further, the inner arc wall of the fixed ring is fixedly connected with a plurality of protrusions, the plurality of protrusions correspond to the plurality of sliding grooves two one by one, the inner wall close to the needle tube axis of the sliding groove two is provided with a sliding groove four in the axial direction of the needle tube, the protrusions are slidably connected in the sliding groove four, the side wall close to the cylinder of the protrusion is fixedly connected with a return spring, and the other end of the return spring is fixedly connected with the inner wall of the sliding groove four.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1、 through the inner support mechanism, can be appropriate to the patient with anal dilatation, make the anal canal inside and outside the sphincter relaxation, facilitate drug through the anus to reach the rectum or deeper position, so as to play a better therapeutic effect, at the same time, appropriate anal dilatation can also promote the blood circulation around the anus, accelerate the absorption and metabolism of drugs, at the same time, the recess is arranged at the edge of the side wall of the approaching limit block, which can ensure that the inner support mechanism does not cause secondary injury to the patient when it is retracted.

[0016] 2、 When the inner support mechanism is not opened, the end of the needle tube can be sealed and protected, so as to avoid the needle tube being contaminated before drug administration, thereby avoiding secondary infection of the patient, and the outer inner support mechanism is also convenient to disassemble and clean and replace, thereby improving the utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of an anus and intestine administration device for digestive system;

[0018] Figure 2 It is a working state schematic view of an anus and intestine administration device for digestive system;

[0019] Figure 3 It is Figure 2 the internal structure schematic view of A in the middle;

[0020] Figure 4 It is Figure 3 the internal structure schematic view of B in the middle;

[0021] Figure 5 It is an internal structure sectional view of an anus and intestine administration device for digestive system.

[0022] In the drawings:

[0023] 10, cylinder; 11, piston push rod; 12, needle tube;

[0024] 20, limit block; 21, connecting piece; 22, sliding block one; 23, fixed rod; 24, limit rod;

[0025] 30, fixed ring; 31, fixed rope; 32, sliding block two. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-5The utility model provides a technical scheme: including the cylinder 10 and the needle tube 12 of fixed connection in one end of cylinder 10, the one side wall center of cylinder 10 is equipped with the channel one along its axial penetration, the one side wall center of needle tube 12 is equipped with the channel two along its axial penetration, the channel one and the channel two are interpenetration, the one end of channel one away from needle tube 12 is connected with piston push rod 11 slidingly, the one end of needle tube 12 away from cylinder 10 is installed with inner support mechanism, and the inner support mechanism includes a plurality of limit blocks 20 that are annular array distribution and are arranged on the outer arc wall of needle tube 12, a plurality of limit blocks 20 form an ellipsoid after mutual abutment, and the one end of needle tube 12 away from cylinder 10 is located in a plurality of limit blocks 20, and the outer arc wall of the one end of needle tube 12 is equipped with internal thread;

[0028] The one end of the outer arc wall of needle tube 12 away from cylinder 10 is equipped with a plurality of slide grooves one along the axial direction of needle tube 12, a plurality of slide grooves one correspond to a plurality of limit blocks 20, a plurality of slide grooves one are connected with two sliding blocks one 22 slidingly, the same fixed rod 23 is fixedly connected on the side wall of two sliding blocks one 22 away from each other, and the fixed lug one on the sliding block one 22 away from needle tube 12 is fixedly connected on the side wall.

[0029] The one end of the fixed lug one on the sliding block one 22 away from the sliding block one 22 is rotatably connected with the connecting piece 21, the one end of the connecting piece 21 away from the fixed lug one is rotatably connected with the fixed lug two, the one end of the fixed lug two away from the connecting piece 21 is fixedly connected on the inner arc wall of limit block 20, the two sides of the one end of the inner arc wall of limit block 20 close to cylinder 10 are fixedly connected with limit rod 24, the length direction of limit rod 24 is radially parallel to needle tube 12, the position corresponding to limit rod 24 on the outer arc wall of needle tube 12 is provided with insertion slot one, limit rod 24 is matched with insertion slot one, and insertion slot one is not in contact with slide groove one.

[0030] Need to be explained: needle tube 12 and cylinder 10 are fixed through insert bolt, cylinder 10 is used to hold liquid medicine, the cross-sectional radius of channel two is much smaller than the cross-sectional radius of channel one, cylinder 10 is of transparent material and is provided with scale line on the inner arc wall, the internal thread of needle tube 12 end is used to install needle head to take liquid medicine, that is, when taking liquid medicine, makes inner support mechanism open and installs needle head, after taking liquid medicine and discharging excess air, the needle head is removed and the inner support mechanism is closed to seal the liquid outlet of needle tube 12 end;

[0031] In order to prevent the limiting block 20 from leaving the sliding track, the longitudinal section of the sliding block 22 is "Z" shape, the sliding groove 1 is adapted to the shape, the limiting rod 24 is always parallel to the normal direction of the outer arc wall of the needle tube 12, the rotating direction of the connecting piece 21 and the fixed lug is parallel to the axial direction of the needle tube 12, the longitudinal section of the connecting piece 21 is "H" shape, and the two ends of the connecting piece 21 are adapted to the fixed lug 1 and the fixed lug 2 respectively, and the connecting piece 21 and the fixed lug 1 and the fixed lug 2 are connected through the pin shaft;

[0032] After a plurality of limiting blocks 20 abut against each other, the limiting blocks 20 are ellipsoidal, and the surfaces of the limiting blocks 20 are paved with smooth flexible materials to prevent the inner cavity from being scratched, and the edges of the limiting blocks 20 are chamfered, and the edges of the side walls of the adjacent two limiting blocks 20 are provided with notches to prevent the inner cavity surface from being clamped during resetting.

[0033] Please refer to Figures 1-5 The utility model provides a technical scheme: the sliding groove 1 on the needle tube 12 is provided with horizontal passageway three close to one end of the barrel 10, the length direction of passageway three is parallel to the axial direction of the needle tube 12, the side of passageway three away from the sliding groove 1 is provided with sliding groove two, the longitudinal section of sliding groove two is annular, and sliding groove two is coaxially arranged with the needle tube 12, and the top end of the side of sliding groove two away from passageway three is provided with through groove one;

[0034] The outer arc wall top of the barrel 10 is provided with sliding groove three, the cross section of sliding groove three is "L" shape, the vertical part of sliding groove three is arranged to the needle tube 12, and the horizontal part of sliding groove three is arranged away from the needle tube 12, sliding block two 32 is slidably connected in sliding groove three, the inside of the side wall of the barrel 10 is provided with through groove two at the end of sliding groove three close to the needle tube 12, and through groove two is through with through groove one;

[0035] The sliding groove three in the barrel 10, the through groove two, the through groove one in the needle tube 12, the sliding groove two, the passageway three and the sliding groove one are all through with each other, the fixed ring 30 is slidably connected in sliding groove two, and the fixed ring 30 is fixedly connected with the fixed rope 31 of same structure on the side wall close to the barrel 10 and the side wall top away from the barrel 10;

[0036] The fixed rope 31 fixedly connected on the side wall close to the barrel 10 of the fixed ring 30 sequentially passes through sliding groove two, through groove one, through groove two and sliding groove three and is fixedly connected with sliding block two 32, and the fixed rope 31 fixedly connected on the side wall away from the barrel 10 of the fixed ring 30 sequentially passes through sliding groove two, passageway three and sliding groove one and is fixedly connected with sliding block one 22;

[0037] The inner arc wall of the fixed ring 30 is fixedly connected with a plurality of convex blocks, the plurality of convex blocks correspond to the plurality of sliding grooves two one by one, the inner wall of sliding groove two close to the axis of the needle tube 12 is provided with sliding groove four along the axial direction of the needle tube 12, the convex block is slidably connected in sliding groove four, the side wall close to the barrel 10 of the convex block is fixedly connected with reset spring, and the other end of the reset spring is fixedly connected to the inner wall of sliding groove four.

[0038] It should be noted that when the pull back slider two 32, under the action of fixed rope 31 pull the fixed ring 30, the fixed ring 30 pull a number of sliding block one 22 in the groove, at this time the connecting piece 21 will be forced to produce rotation, will limit the block 20 out, under the limit of the limit rod 24 limit block 20 will be along the needle tube 12 outer arc wall normal direction out, the initial state, away from the cylinder 10 of the slider one 22 and the groove away from the inner wall of the cylinder 10 of the abutment, when close to the cylinder 10 of the slider one 22 and the groove close to the inner wall of the cylinder 10 of the abutment, slider two 32 and groove three away from the needle tube 12 of the inner wall abutment and at this time limit block 20 reaches the maximum can be extended length, and at this time the inner support mechanism reaches the maximum range can be opened;

[0039] The groove three is "L" shape, which makes the start of the inner support mechanism, slider two 32 can be pulled back to the horizontal part of the groove three, to prevent the inner support mechanism back, so that the operator has enough time to inject liquid medicine, and the same reason groove three can be set more than one horizontal part, and change the opening range of the inner support mechanism to adapt to different use.

[0040] Working principle:

[0041] Pull back slider two 32 makes the inner support mechanism open, install the needle to the end of needle tube 12, then use the piston push rod 11 to extract liquid medicine and discharge excess air, then remove the needle, loosen the slider two 32 to make the inner support mechanism reset, then medical disinfection and medical lubrication, insert the device into the patient's anus, then pull back the slider two 32 to start the inner support mechanism to the patient for appropriate expansion, then push the piston push rod 11 to inject liquid medicine, loosen the slider two 32 to make the inner support mechanism reset, slowly take out the device.

Claims

1. A rectal medication applicator for the digestive system, comprising a cylindrical body (10) and a needle tube (12) fixedly connected to one end of the cylindrical body (10), wherein a first channel is provided at the center of one side wall of the cylindrical body (10) and a second channel is provided at the center of one side wall of the needle tube (12) and the second channel are interconnected, and a piston rod (11) is slidably connected to the end of the first channel away from the needle tube (12), characterized in that: An internal support mechanism is installed at the end of the needle tube (12) away from the cylinder (10). The internal support mechanism includes several limiting blocks (20) arranged in a ring array on the outer arc wall of the needle tube (12). The several limiting blocks (20) abut against each other to form an ellipsoid, and the end of the needle tube (12) away from the cylinder (10) is located inside the several limiting blocks (20). The outer arc wall of the end of the needle tube (12) away from the cylinder (10) is provided with an internal thread.

2. The rectal medication applicator for the digestive system as described in claim 1, characterized in that: On the outer arc wall of the needle tube (12), at the end away from the cylinder (10), there are several sliding grooves arranged in a ring array along the axial direction of the needle tube (12). Each of the several sliding grooves corresponds to one of the several limiting blocks (20). Two sliders (22) are slidably connected in the sliding groove. The same fixing rod (23) is fixedly connected to the side wall of the two sliders (22) that are close to each other. A fixing ear is fixedly connected to the side wall of the slider (22) that is away from the needle tube (12).

3. The rectal medication applicator for the digestive system as described in claim 2, characterized in that: The fixed ear seat on the slider (22) is rotatably connected to a connector (21) at one end away from the slider (22). The fixed ear seat is rotatably connected to a fixed ear seat at one end away from the fixed ear seat. The fixed ear seat is fixedly connected to the inner arc wall of the limiting block (20) at one end away from the connector (21). Limiting rods (24) are fixedly connected to both sides of the inner arc wall of the limiting block (20) near the cylinder (10). The length direction of the limiting rods (24) is parallel to the radial direction of the needle tube (12). A slot is provided on the outer arc wall of the needle tube (12) at the position corresponding to the limiting rod (24). The limiting rod (24) is adapted to the slot, and the slot does not contact the slide groove.

4. The rectal medication applicator for the digestive system as described in claim 1, characterized in that: The end of the slide groove on the needle tube (12) near the cylinder (10) is provided with a horizontal channel three. The length direction of the channel three is parallel to the axis of the needle tube (12). The side of the channel three away from the slide groove one is provided with a slide groove two. The longitudinal section of the slide groove two is annular and the slide groove two is coaxial with the needle tube (12). The top of the side of the slide groove two away from the channel three is provided with a through groove one.

5. A rectal medication applicator for the digestive system as described in claim 4, characterized in that: The top of the outer arc wall of the cylinder (10) is provided with a sliding groove three. The cross-section of the sliding groove three is "L" shaped. The vertical part of the sliding groove three is set towards the needle tube (12) and the horizontal part of the sliding groove three is set away from the needle tube (12). A slider two (32) is slidably connected inside the sliding groove three. A through groove two is provided inside the side wall of the cylinder (10) at the end of the sliding groove three near the needle tube (12). The through groove two is connected to the through groove one.

6. A rectal medication applicator for the digestive system as described in claim 5, characterized in that: The three sliding grooves and the two through grooves in the cylinder (10) are interconnected with the one through groove, the two sliding grooves, the three channels and the one sliding groove in the needle tube (12). A fixing ring (30) is slidably connected in the two sliding grooves. The top of the fixing ring (30) near the cylinder (10) and the top of the side wall away from the cylinder (10) are fixedly connected with a fixing rope (31) of the same structure.

7. A rectal medication applicator for the digestive system as described in claim 6, characterized in that: The fixing rope (31) fixedly connected to the side wall of the fixing ring (30) near the cylinder (10) passes through the second slide groove, the first through groove, the second through groove and the third slide groove in sequence and is fixedly connected to the second slider (32). The fixing rope (31) fixedly connected to the side wall of the fixing ring (30) away from the cylinder (10) passes through the second slide groove, the third through groove and the first slide groove in sequence and is fixedly connected to the first slider (22).

8. A rectal medication applicator for the digestive system as described in claim 6, characterized in that: Several protrusions are fixedly connected to the inner arc wall of the fixed ring (30). Several protrusions correspond one-to-one with several sliding grooves. A sliding groove four is opened on the inner wall of the sliding groove two near the axis of the needle tube (12) along the axial direction of the needle tube (12). The protrusions are slidably connected in the sliding groove four. A return spring is fixedly connected to the side wall of the protrusion near the cylinder (10). The other end of the return spring is fixedly connected to the inner wall of the sliding groove four.

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