CN113855948A

CN113855948A - Abdominal cavity local anesthesia device of dosing

Info

Publication number: CN113855948A
Application number: CN202111252637.6A
Authority: CN
Inventors: 刘鹏飞; 乔辉; 张能维; 关雷; 汪润; 李天佐
Original assignee: Beijing Shijitan Hospital
Current assignee: Beijing Shijitan Hospital
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2021-12-31

Abstract

The invention relates to the technical field of medical instruments, and provides an abdominal cavity local anesthesia drug delivery device which comprises a spray head, a liquid delivery pipe and a drug delivery device, wherein the liquid delivery pipe is connected between the spray head and the drug delivery device; the spray head comprises a spray head main body, a spray screen cover and a rotary obstacle table, wherein the spray screen cover is arranged on the spray head main body, a plurality of spiral liquid feeding holes are formed in the spray head main body, the rotary obstacle table is arranged in the spray screen cover and is rotationally connected with the spray head main body, a plurality of arc-shaped convex ribs are arranged on the surface of the rotary obstacle table, and liquid outlets of the spiral liquid feeding holes face the inner concave surfaces of the arc-shaped convex ribs; the medicine feeder comprises an injection tube, a plunger piston and a plunger rod, wherein a tube sleeve is sleeved on the injection tube, an elastic belt is arranged on the tube sleeve, the plunger piston is arranged in the injection tube, a rod handle is arranged on a plunger piston handle, and the elastic belt can be sheathed on the rod handle in an extending manner. The invention adopts the principle of combining the high-speed water flow into small water drops after contacting with the obstacle and the small water drops torn by centrifugal throwing, so that the liquid medicine is uniformly sprayed on the affected part in a spraying mode, and the anesthesia effect is good.

Description

Abdominal cavity local anesthesia device of dosing

Technical Field

The invention relates to the technical field of medical instruments, in particular to an abdominal local anesthesia drug delivery device.

Background

Due to advances in technology, it has become possible to perform surgery through smaller incisions. Thus, the damage to the tissue is less than in conventional surgical procedures. Through the keyhole-sized incision, the surgeon may insert a tiny light source, camera, and surgical instruments. The surgeon guides the operation of the surgical instruments to perform the procedure through the images transmitted to the monitor. Such surgery is called laparoscopic surgery when performed in the abdominal cavity, arthroscopic surgery when performed in the joints, thoracoscopic surgery when performed in the thoracic cavity, and the like. When the endoscopic surgery is started and finished, the injury of wounds in a patient body, including viscera, disintegrated tissues and other incisions, is often a source of visceral pain, and the treatment effect of oral medicines (opioids and non-steroids) for the pain is not ideal. And the medicine device is often adopted at present to spout and is applied local anesthesia medicine surface infiltration to the incision, to preventing the severe pain in postoperative operation position portion to increase patient's comfort level and accelerate patient's recovery and have very big help.

However, the existing medicine spraying device often emits the local anesthetic in the form of water column when local anesthetic infiltration is carried out, which not only easily causes anesthetic waste, but also causes uneven local anesthetic and has poor anesthetic effect.

Therefore, how to solve the above problems becomes a focus of research by those skilled in the art.

Disclosure of Invention

The invention aims to provide an abdominal local anesthesia drug delivery device to solve the problem of the prior art.

The embodiment of the invention is realized by the following technical scheme:

an abdominal cavity local anesthesia drug delivery device comprises a spray head, a liquid delivery pipe and a drug delivery device, wherein the liquid delivery pipe is connected between the spray head and the drug delivery device; the spray head comprises a spray head main body, a spray screen cover and a rotary obstacle table, wherein one end of the spray head main body is connected with a liquid feeding pipe, the spray screen cover is arranged at the other end of the spray head main body, a plurality of spiral liquid feeding holes are formed in the spray head main body from one end of the liquid feeding pipe to one end of the spray screen cover, the rotary obstacle table is arranged in the spray screen cover and is rotatably connected with the spray head main body, a plurality of arc convex ribs which are in one-to-one correspondence with the spiral liquid feeding holes are arranged on the surface of the rotary obstacle table, and the liquid outlet of each spiral liquid feeding hole is inclined towards the inner concave surface of each arc convex rib;

the drug delivery device comprises an injection tube, a plunger and a plunger rod, a sleeve is sleeved on the outer wall of the injection tube, an elastic belt is arranged on the sleeve in a rotating mode, the plunger is arranged in the injection tube, one end of the plunger rod is connected with the plunger, a rod handle is arranged at the other end of the plunger rod, and the elastic belt can be arranged at the tail end of the rod handle in a stretching mode.

Furthermore, a first groove is formed in the end face, close to the side where the spraying mesh enclosure is located, of the spray head main body, a bearing is installed in the first groove, a convex shoulder is integrally formed on the surface of the rotary obstacle table, and the convex shoulder is connected with the bearing in a matched mode.

Further, the liquid sending pipe comprises a large-diameter section and a small-diameter section which are integrally formed, the large-diameter section is connected with the medicine feeder, and the small-diameter section is connected with the spray head.

Further, the inner diameter of the large-diameter section is twice that of the small-diameter section, and the inner diameter of the large-diameter section is the same as that of a liquid outlet of the administration device.

Further, a telescopic corrugated hose is connected between the large-diameter end and the small-diameter section.

Furthermore, the liquid feeding pipe is a medical silica gel hose, and a plastic metal wire is arranged in the liquid feeding pipe.

Furthermore, a plurality of the spiral liquid feeding holes are independent from each other and do not interfere with each other.

Further, the tip of injection cylinder is provided with the grab handle, the barrel casing with the spacing butt of grab handle.

Furthermore, an L-shaped rod extending along the extension direction of the plunger rod is integrally formed on the barrel sleeve, and a limiting mechanism used for abutting against the rod handle in the longest extension state of the plunger rod is arranged on the L-shaped rod.

Further, stop gear includes the free bearing, rotates the dog that sets up on the free bearing and wears to locate the bolt on the free bearing, the bolt sets up in dog and is close to injection tube one side for interim check block dog rotates toward injection tube one side.

The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:

at present, the common atomizer has four realization forms, two of which are the principle that high-speed water flow is cracked into small water drops after contacting with an obstacle and the principle that the high-speed water flow is centrifugally thrown out and torn into small water drops, the invention combines the two principles together, utilizes the ejection principle to ensure that a medicine feeder rapidly extrudes medicine liquid under the ejection action of an elastic belt so as to ensure that the medicine liquid obtains a faster initial speed, and the medicine liquid impacts an arc convex rib on a rotating obstacle table at a certain angle and inclines through the centrifugal force of a spiral liquid feeding hole to form small liquid drops for scattering for the first time, the impacted rotating obstacle table rotates to throw out the small liquid drops partially scattered on the rotating obstacle table again, the first scattered small liquid drops and the small liquid drops thrown off by the rotating obstacle table impact the compact spray net cover again, thereby forming spray and spraying evenly on the affected part of the abdominal cavity, and having better anesthesia effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an abdominal local anesthesia administration device provided in embodiment 1 of the present invention;

fig. 2 is a first perspective view of the spray head;

fig. 3 is a second perspective view of the spray head;

fig. 4 is a cross-sectional view of the spray head;

FIG. 5 is a schematic view of a rotary obstacle table;

fig. 6 is a schematic view of the structure of the dispenser.

Icon: 1-spray head, 101-spray head body, 102-spray net cover, 103-rotary obstacle table, 104-spiral liquid feeding hole, 105-arc convex rib, 2-liquid feeding pipe, 201-large diameter section, 202-small diameter section, 3-administration device, 301-injection cylinder, 302-plunger rod, 303-rod handle, 304-grab handle, 4-cylinder cover, 5-L-shaped rod, 6-limiting mechanism, 601-hinge seat, 602-pivot, 603-stop block, 604-plug pin and 7-elastic band.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 6, the present embodiment provides a local anesthesia delivery device for abdominal cavity, comprising a spray head 1, a liquid feeding tube 2 and an applicator 3, wherein the liquid feeding tube 2 is connected between the spray head 1 and the applicator 3, the applicator 3 is preferably an injector, the price is suitable, the material is easily available, and the applicator comprises a syringe 301, a plunger rod 302 and a rod handle 303. Liquid sending pipe 2 includes integrated into one piece's big footpath section 201 and path section 202, the both ends of big footpath section 201 and path section 202 all are provided with the connector, and the connector of big footpath section 201 one end is connected with the liquid outlet of dosing ware 3, and the connector of path section 202 one end is connected with the connection end on the atomising head 1, the internal diameter of big footpath section 201 is the twice of path section 202 internal diameter, and the internal diameter of big footpath section 201 is the same with the liquid outlet internal diameter of dosing ware 3. The liquid feeding tube 2 is provided with a two-stage structure with a large inner diameter and a small inner diameter, and the purpose is to enable the liquid medicine to enter the small diameter section 202 from the large diameter section 201, and the initial speed of the liquid medicine entering the spray head 1 can be further improved under the influence of the reduced inner diameter. In addition, be connected with telescopic corrugated tube 203 between big footpath end 201 and the path section 202, can adjust the length of whole liquid delivery pipe 2 like this to adapt to the different operation scenes, liquid delivery pipe 2 is medical silica gel hose, is provided with the wire of plasticity in the liquid delivery pipe 2, so that adjust liquid delivery pipe 2 shape, conveniently aim at the affected part and spout the medicine.

In order to obtain a larger initial velocity of the liquid medicine and form a torrent, the injection tube 301 is sleeved with the barrel sleeve 4, the tail end of the injection tube 301 is integrally formed with the grab handle 304, the barrel sleeve 4 is sleeved on the injection tube 301 and abuts against the grab handle 304, the barrel sleeve 4 is further fixed with the elastic belt 7 through the fixing nail, after the elastic belt 7 is folded in half, two free ends of the elastic belt are rotatably sleeved on the nail rod of the fixing nail, and when the plunger rod 302 extends out of the injection tube 301 by any length, the elastic belt 7 can be sleeved on the end part of the rod handle in a stretching state, the bottom of the barrel sleeve 4 is integrally formed with the L-shaped rod 5, the L-shaped rod 5 extends along the extension direction of the plunger rod, the tail end of the L-shaped rod 5 is provided with the limiting mechanism 6, the limiting mechanism 6 comprises a hinged support 601, the hinged support 601 is rotatably provided with a pivot 602, the pivot is integrally formed with a stopper 603, and the stopper 603 rotates along with the pivot, the hinged support 601 is further provided with a plug 604, the plug 604 is arranged on one side of the stop block 603 close to the injection tube 301, when the plunger rod 302 is pulled to the longest, the barrel sleeve 4 is sleeved on the injection tube 301 to be abutted to the holding handle 304, so that the stop block 603 is limited between the rod handle 303 and the plug 604, then the elastic belt 7 is pulled to be sleeved on the end part of the rod handle 303 in a long way, when spraying is needed, the plug 604 is pulled out, the plunger rod 302 is ejected and started under the action of the elastic belt, and the liquid medicine is quickly pressed into the liquid feeding tube 2, so that a larger initial speed is obtained.

The spray head 1 comprises a spray head main body 101, a spray mesh enclosure 102 and a rotary obstacle table 103, one end of the spray head main body 101 is provided with a connecting end connected with a liquid sending pipe 2, a second groove is formed in the end face of the connecting end, a plurality of spiral liquid sending holes 104 extending from one side of the liquid sending pipe 2 to one side of the spray mesh enclosure 102 are formed in the second groove, and all the spiral liquid sending holes 104 are mutually independent and complementarily interfere.

The oral area of spraying screen panel 102 is provided with screwed joint, is provided with the external screw thread on the shower nozzle main part 101, spraying screen panel 102 threaded connection is on shower nozzle main part 101, the fine and close mesh of equipartition on the screw screen panel, and the aperture is about 0.5mm, rotatory obstacle platform 103 sets up in spraying screen panel 102, shower nozzle main part 101 is close to and is provided with first recess on the side end face at spraying screen panel 102 place, install the bearing in the first recess, the surperficial integrated into one piece of rotatory obstacle platform 103 has the shoulder, the shoulder cooperation is connected the bearing to make rotatory obstacle platform 103 can be at shower nozzle main part 101 free rotation, rotatory obstacle platform 103 surface be provided with a plurality of and spiral liquid feeding hole 104 one-to-one arc protruding muscle 105, the interior concave surface towards arc protruding muscle 105 of the liquid outlet slope of spiral liquid feeding hole 104.

As can be seen from the above, in the administration device for local anesthesia in abdominal cavity provided by this embodiment, after the anesthetic is sucked into the administration device 3, the liquid delivery tube 2 is connected, the liquid delivery tube 2 delivers the spray head 1 to the affected part of the operation along the incision, the liquid medicine enters the liquid delivery tube 2 at a relatively high initial speed by the ejection action of the administration device 3, the speed of the liquid medicine is increased by the change of the tube diameter of the liquid delivery tube 2 from large to small, and the liquid medicine forms a jet along the spiral liquid delivery hole 104 whose aperture is reduced again and impacts the arc-shaped convex rib 105 on the rotation obstacle 103 at a relatively high speed, the liquid medicine impacts the rotation obstacle 103 in a jet form, so as to hit small water drops or form water mist to scatter and impact the spray mesh 102 again to tear again to form spray and scatter, while part of the liquid medicine remaining on the rotation obstacle 103 is thrown out by the rotation obstacle 103 and impacts the spray mesh 102 again, the second tearing is carried out to form spraying and then the spraying is dispersed, so that the atomized medicine liquid is sprayed from the spraying mesh enclosure 102 to evenly spray the affected part, and a good anesthetic effect is formed.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an abdominal cavity local anesthesia device of dosing which characterized in that: comprises a spray head (1), a liquid feeding pipe (2) and an administration device (3), wherein the liquid feeding pipe (2) is connected between the spray head (1) and the administration device (3); the spray head (1) comprises a spray head main body (101), a spray net cover (102) and a rotary obstacle table (103), one end of the spray head main body (101) is connected with a liquid feeding pipe (2), the spray net cover (102) is arranged at the other end of the spray head main body (101), a plurality of spiral liquid feeding holes (104) are formed in the spray head main body (101) from one end of the liquid feeding pipe (2) to one end of the spray net cover (102), the rotary obstacle table (103) is arranged in the spray net cover (102) and is rotatably connected with the spray head main body (101), a plurality of arc-shaped convex ribs (105) which correspond to the spiral liquid feeding holes (104) one by one are arranged on the surface of the rotary obstacle table (103), and the liquid outlet of each spiral liquid feeding hole (104) is inclined towards the inner concave surface of each arc-shaped convex rib (105);

the medicine feeder (3) comprises an injection tube (301), a plunger and a plunger rod (302), a sleeve (4) is sleeved on the outer wall of the injection tube (301), an elastic belt (7) is arranged on the sleeve (4) in a rotating mode, the plunger is arranged in the injection tube, one end of the plunger rod (302) is connected with the plunger, a rod handle (303) is arranged at the other end of the plunger rod, and the elastic belt (7) can be arranged at the tail end of the rod handle (303) in a stretching mode.

2. The intraperitoneal local anesthesia administration device of claim 1, wherein: the sprayer body (101) is provided with a first groove close to the side end face where the spraying mesh enclosure (102) is located, a bearing is installed in the first groove, a shoulder is integrally formed on the surface of the rotary obstacle table (103), and the shoulder is connected with the bearing in a matched mode.

3. The intraperitoneal local anesthesia administration device of claim 1, wherein: the liquid sending pipe (2) comprises a large-diameter section (201) and a small-diameter section (202) which are integrally formed, the large-diameter section (201) is connected with the medicine feeder (3), and the small-diameter section (202) is connected with the spray head (1).

4. The intraperitoneal local anesthesia administration device of claim 3, wherein: the inner diameter of the large-diameter section (201) is twice that of the small-diameter section (202), and the inner diameter of the large-diameter section (201) is the same as the inner diameter of a liquid outlet of the administration device (3).

5. The intraperitoneal local anesthesia administration device of claim 3, wherein: a telescopic corrugated hose (203) is connected between the large-diameter end (201) and the small-diameter section (202).

6. The intraperitoneal local anesthesia administration device of claim 1, wherein: the liquid feeding pipe (2) is a medical silica gel hose, and a plastic metal wire is arranged in the liquid feeding pipe (2).

7. The intraperitoneal local anesthesia administration device of claim 1, wherein: the spiral liquid feeding holes (104) are independent and have no interference.

8. The intraperitoneal local anesthesia administration device of claim 1, wherein: the end of the injection tube (301) is provided with a grab handle (304), and the tube sleeve (301) is in limit abutting connection with the grab handle (304).

9. The intraperitoneal local anesthesia administration device of claim 1, wherein: the cylinder sleeve (4) is integrally formed with an L-shaped rod (5) extending along the extension direction of the plunger rod (302), and the L-shaped rod (5) is provided with a limiting mechanism (6) used for abutting against the rod handle (303) in the longest extension state of the plunger rod (302).

10. The intraperitoneal local anesthesia delivery device of claim 9, wherein: stop gear (6) include free bearing (601), rotate and set up dog (603) on free bearing (601) and wear to locate bolt (604) on free bearing (601), bolt (604) set up in dog (603) and are close to injection tube (301) one side for interim check block dog (604) rotates toward injection tube (301) one side.