Intestinal puncture drainage device

Abstract

The utility model discloses an intestinal puncture drainage device which comprises a negative pressure drainage bottle, the negative pressure drainage bottle is connected with a hose, the end, away from the negative pressure drainage bottle, of the hose is detachably connected with a hard needle core, the hard needle core is sleeved with a soft sleeve and a hard sleeve, one end of the soft sleeve is fixed to the head of the hard needle core, and the other end of the soft sleeve is fixed to the hard sleeve. The soft cannula is of a fusiform structure, a grab handle is fixedly installed at the end, away from the soft cannula, of the hard needle core, the fusiform soft cannula and the hard cannula which are arranged on the hard needle core in a sleeving mode are arranged, after the soft cannula is inserted into the intestinal tract, the hard cannula can be pushed to enable the soft cannula to be extruded and arched, the outer diameter of the hard cannula is larger than that of the hard needle core, the hard needle core is slowly pulled outwards, and therefore the soft cannula can be inserted into the intestinal tract. When the biliary tract is punctured, the bulged soft sleeve abuts against the inner wall of the intestinal tract, so that intestinal juice is prevented from leaking out after the intestinal tract is punctured, a silk thread does not need to be arranged in advance to ligate the tail end of the biliary tract and the catheter during injection and drainage, and the phenomenon that liquid medicine leaks out is avoided.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to an intestinal puncture drainage device. Background Art

[0002] When collecting intestinal fluid, transfer the animal to the operating board connected to the anesthetic. After anesthetizing the animal, prepare the skin with depilatory cream, disinfect and lay a towel in the surgical area. Make a longitudinal incision in the middle of the abdomen, cut the skin layers with surgical scissors, expose the abdominal cavity with an automatic retractor, find the duodenum along the stomach, and slightly flip the duodenum to determine whether it is the duodenum. After finding the duodenum, slide down about 3cm, tie the lower end of the duodenum with silk thread, pre-tie the lower end of the duodenum with silk thread, insert the negative pressure suction needle into the lower end of the duodenum, tighten the pre-tie silk thread, and suction the mouse intestinal fluid with negative pressure every three minutes for fifteen minutes; after the needle directly punctures the intestine, because the mouse intestinal wall is thin, and when the needle passes through the intestinal wall, there is a lack of effective protection between the needle and the intestinal wall perforation, so during the negative pressure drainage process, there will be intestinal fluid leakage between the intestinal wall and the needle wall. Although the current use of pre-set silk thread to ligate the lower end of the duodenum can avoid the leakage of intestinal fluid, it increases the risk of intestinal fistula.

[0003] In view of the above situation, it is urgent to develop an intestinal puncture and drainage device, which can not only avoid the leakage of intestinal fluid after puncturing the intestine, but also eliminate the need for pre-placed silk thread to ligate the end of the bile duct and the catheter during injection and drainage, thereby avoiding the leakage of drug solution. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an intestinal puncture drainage device to avoid leakage of intestinal fluid after puncturing the intestine, and no silk thread is required to be pre-placed to ligate the end of the bile duct and the catheter during injection and drainage, thus avoiding leakage of liquid medicine.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an intestinal puncture drainage device, comprising a negative pressure drainage bottle, the negative pressure drainage bottle is connected to a hose, the end of the hose away from the negative pressure drainage bottle is detachably connected to a hard needle core, the hard needle core is externally sleeved with a soft sleeve and a hard sleeve, one end of the soft sleeve is fixed to the head of the hard needle core, and the other end is fixed to the hard sleeve, the soft sleeve is a shuttle-shaped structure, and the end of the hard needle core away from the soft sleeve is fixedly installed with a handle.

[0006] As a preferred technical solution of the utility model, the hard needle core includes a needle head and a needle body; the needle head and the needle body are integrally formed, the needle body is fixed on the handle, a drainage hole is provided on the needle head, a tower head is fixedly installed at one end of the needle body away from the needle head, and the hose is interference fit with the tower head.

[0007] As a preferred technical solution of the utility model, the needle body is provided with a groove in an annular shape, the hard sleeve is sleeved on the groove side of the needle body, and the hard sleeve has the same outer diameter as the hard needle core.

[0008] As a preferred technical solution of the utility model, a rubber sleeve is fixedly installed at one end of the hard sleeve away from the needle, and the rubber sleeve is arranged on the needle body, and the side of the needle body close to the hard sleeve is frosted.

[0009] As a preferred technical solution of the utility model, a clamping groove is symmetrically provided on one side of the handle close to the needle body.

[0010] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0011] 1. By arranging a shuttle-shaped soft cannula and a hard cannula which are sleeved on a hard needle core, after the soft cannula is inserted into the intestine, the hard cannula can be pushed to squeeze and bulge, and the outer diameter of the soft cannula is larger than the outer diameter of the hard needle core, and the hard needle core is slowly pulled outward, and the bulged soft cannula is made to abut against the inner wall of the intestine, thereby avoiding leakage of intestinal fluid after puncturing the intestine, and there is no need to pre-place silk thread to ligate the end of the bile duct and the catheter during injection and drainage, thereby avoiding leakage of drug solution and reducing the risk of intestinal fistula.

[0012] 2. By coaxially fixing the rubber sleeve on the end of the hard sleeve away from the needle, the inner wall of the hole of the rubber sleeve fits with the outer wall of the groove of the needle body, and under the action of the rubber, it contacts the frosted side of the needle body. Under the action of friction, the rubber sleeve can be fixed on the needle body after sliding.

[0013] 3. By symmetrically opening a slot on one side of the handle close to the needle body, when the user holds the handle, the index finger is placed in the slot on one side to improve the stability of holding the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 This is a schematic diagram of the hard needle core, handle and soft sleeve structure of the utility model;

[0017] Figure 4 For the utility model Figure 3 Schematic diagram of explosion structure;

[0018] Figure 5 For the utility model Figure 4 The enlarged structural diagram at B in the middle;

[0019] Figure 6 It is a schematic diagram of the hard casing and the soft casing structure of the utility model;

[0020] Figure 7 It is a schematic diagram of the cross-sectional structure of the hard casing and the soft casing of the utility model.

[0021] Among them: 1. hard needle core; 101. needle head; 1011. drainage hole; 102. needle body; 1021. groove; 1022. tower head; 2. soft sleeve; 3. hard sleeve; 301. rubber sleeve; 4. handle; 401. slot; 5. negative pressure drainage bottle; 501. hose. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0023] Example:

[0024] like Figure 1-7 As shown, the utility model provides an intestinal puncture drainage device, including a negative pressure drainage bottle 5, the negative pressure drainage bottle 5 is connected to a hose 501, the end of the hose 501 away from the negative pressure drainage bottle 5 is detachably connected to a hard needle core 1, the hard needle core 1 is externally sleeved with a soft sleeve 2 and a hard sleeve 3, one end of the soft sleeve 2 is fixed to the head of the hard needle core 1, and the other end is fixed to the hard sleeve 3, the soft sleeve 2 is a shuttle-shaped structure, and the end of the hard needle core 1 away from the soft sleeve 2 is fixedly installed with a handle 4.

[0025] The hard sleeve 3 is stretched outward so that the soft sleeve 2 fits on the hard needle core 1 to prevent the intestinal insertion hole from being expanded when the shuttle-shaped soft sleeve 2 is inserted. Then, the handle 4 is held to insert the head of the hard needle core 1 into the specified position of the intestine. After the soft sleeve 2 is placed inside the intestine, the hard sleeve 3 is squeezed toward the head of the hard needle core 1 so that the center of the soft sleeve 2 bulges. The soft sleeve 2 arches under the squeezing action, and the outer diameter is larger than the outer diameter of the hard needle core 1. At this time, the hard needle core 1 is slowly pulled outward so that the raised soft sleeve 2 is against the inner wall of the intestine. The negative pressure drainage bottle 5 is opened, and under the action of negative pressure, the intestinal fluid is sucked into the negative pressure drainage bottle 5.

[0026] The hard needle core 1 includes a needle head 101 and a needle body 102; the needle head 101 and the needle body 102 are integrally formed, the needle body 102 is fixed on the handle 4, a drainage hole 1011 is opened on the needle head 101, a tower head 1022 is fixedly installed on one end of the needle body 102 away from the needle head 101, and the hose 501 is interference fit with the tower head 1022.

[0027] Reference Figure 4 and Figure 5 The needle 101 and the needle body 102 are an integrally formed structure to ensure the overall strength. The needle body 102 is fixed on the handle 4, and a drainage hole 1011 is opened on one side of the needle 101 to avoid the problem of drainage failure caused by clogging of the needle 101 and improve the smoothness of drainage. A tower head 1022 is fixedly installed at the end of the needle body 102 away from the needle 101. The tower head 1022 is interference fit with the hose 501. Therefore, the detachable connection between the hose 501 and the tower head 1022 facilitates the disassembly and assembly of the negative pressure drainage bottle 5 and the hard needle core 1, so that the hard needle core 1 can be reused after cleaning and disinfection.

[0028] The needle body 102 is provided with a groove 1021 in an annular shape, and the hard sleeve 3 is sleeved on the side of the groove 1021 of the needle body 102 . The hard sleeve 3 has the same outer diameter as the hard needle core 1 .

[0029] Reference Figure 3 and Figure 5 A groove 1021 is provided in an annular manner on the outer wall of the needle body 102, and the hard sleeve 3, the soft sleeve 2 and the rubber sleeve 301 are all sleeved on the side of the groove 1021 of the needle body 102, and the hard sleeve 3 has the same outer diameter as the hard needle core 1 to ensure that the hard needle core 1 is smoothly inserted into the intestine, and when the hard sleeve 3 is stretched outward, the soft sleeve 2 is placed in the groove 1021 to prevent the soft sleeve 2 from expanding the insertion hole of the intestine.

[0030] A rubber sleeve 301 is fixedly mounted on one end of the hard sleeve 3 away from the needle 101 . The rubber sleeve 301 is sleeved on the needle body 102 . The side of the needle body 102 close to the hard sleeve 3 is frosted.

[0031] Reference Figure 3 and Figure 6 A rubber sleeve 301 is coaxially fixed at the end of the hard sleeve 3 away from the needle 101. The inner wall of the hole of the rubber sleeve 301 fits with the outer wall of the groove 1021 of the needle body 102, and under the action of the rubber, it contacts the frosted side of the needle body 102. Under the action of friction, the rubber sleeve 301 can be fixed on the needle body 102 after sliding.

[0032] A clamping slot 401 is symmetrically formed on one side of the handle 4 close to the needle body 102 .

[0033] Reference Figure 3A slot 401 is symmetrically provided on one side of the handle 4 close to the needle body 102 . When the user holds the handle 4 , the index finger is placed in the slot 401 on one side to improve the stability of holding the handle 4 .

[0034] When the utility model is in use, the user holds the handle 4 and places the index finger in the slot 401 on one side, and then pulls the rubber sleeve 301 outward to pull the soft sleeve 2 outward, and at the same time the soft sleeve 2 is placed in the groove 1021, inserts the needle 101 into the intestine, and places the soft sleeve 2 inside the intestine, then holds the handle 4 and pushes the rubber sleeve 301, so that the soft sleeve 2 is squeezed and arched, and the outer diameter of the arched soft sleeve 2 is larger than the outer diameter of the hard needle core 1, at this time, the hard needle core 1 is slowly pulled outward, and the raised soft sleeve 2 is made to abut against the inner wall of the intestine, and the negative pressure drainage bottle 5 is opened. Under the action of negative pressure, the intestinal fluid is sucked into the negative pressure drainage bottle 5.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An intestinal puncture drainage device, comprising a negative pressure drainage bottle (5), wherein the negative pressure drainage bottle (5) is connected to a hose (501), characterized in that: The end of the hose (501) away from the negative pressure drainage bottle (5) is detachably connected to a hard needle core (1), and the hard needle core (1) is externally sleeved with a soft sleeve (2) and a hard sleeve (3), one end of the soft sleeve (2) is fixed to the head of the hard needle core (1), and the other end is fixed to the hard sleeve (3), the soft sleeve (2) is a shuttle-shaped structure, and the end of the hard needle core (1) away from the soft sleeve (2) is fixedly installed with a handle (4).

2. An intestinal puncture drainage device according to claim 1, characterized in that: The hard needle core (1) comprises a needle head (101) and a needle body (102); the needle head (101) and the needle body (102) are integrally formed, the needle body (102) is fixed on the handle (4), a drainage hole (1011) is provided on the needle head (101), a tower head (1022) is fixedly installed at one end of the needle body (102) away from the needle head (101), and the hose (501) is interference fit with the tower head (1022).

3. An intestinal puncture drainage device according to claim 2, characterized in that: The needle body (102) is provided with a groove (1021) in the shape of an annular ring. The hard sleeve (3) is sleeved on the side of the groove (1021) of the needle body (102). The hard sleeve (3) has the same outer diameter as the hard needle core (1).

4. An intestinal puncture drainage device according to claim 1, characterized in that: A rubber sleeve (301) is fixedly mounted on one end of the hard sleeve (3) away from the needle head (101), and the rubber sleeve (301) is sleeved on the needle body (102), and a side of the needle body (102) close to the hard sleeve (3) is frosted.

5. The intestinal puncture drainage device according to claim 1, characterized in that: A clamping groove (401) is symmetrically provided on one side of the handle (4) close to the needle body (102).

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