CN2247003Y

CN2247003Y - External sleeve separating type needle for vesicopuncture fistulation

Info

Publication number: CN2247003Y
Application number: CN 95238655
Authority: CN
Inventors: 钱抚生
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-21
Filing date: 1995-12-21
Publication date: 1997-02-12
Anticipated expiration: 2005-12-21

Abstract

The utility model discloses an external sleeve separating type needle for vesicopuncture fistulation. The utility model is characterized in that the external sleeve tube of the needle is composed of two semicircular tubes which are separated along a shaft line; the two semicircular tubes can be combined together to be tightly fixed by a nut with an opening to form an integral circular tube; a dual-cavity air sac urinary catheter can be inserted into a bladder to carry out fistulation, and the external sleeve tube can be disengaged form the urinary catheter conveniently. The utility model can effectively solve the problem that the existing external sleeve tube of a fistulation needle can not disengaged from the dual-cavity air sac urinary catheter to effectively solve the abuses that when a common single-cavity urinary catheter is used for fistulation, the insertion depth of the urinary catheter is not easy to control, the urinary catheter is easy to fall, and the urinary catheter needs to be seamed when the urinary catheter needs to be fixed.

Description

Trocar sheath dissection type punctio vesicae soap

This utility model belongs to technical field of medical instruments, is specifically related to a kind of punctio vesicae soap.

The punctio vesicae soap that present clinical treatment urinary system lower urinary tract obstruction generally adopts, its trocar sheath is an overall structure, the trocar sheath of this soap can only insert bladder with common single chamber catheter and carry out fistulation, because being retained in the degree of depth of bladder inner segment after the operation of common single chamber catheter is difficult for grasping, inserted deeply easily at the intravesical warpage, cause urine drainage not smooth, influence therapeutic effect, kept somewhere simple and easy causing and take off the generation of pipe phenomenon.In addition because common single chamber catheter itself does not have fixture, need behind the bladder stoma to fix with skin closure, long term indwelling catheter easily causes the infection of fistula mouth surrounding skin, tissue edema, fragility to increase, and causes suture and urinary catheter to come off, influence treatment and increase patient's misery.The effective way that overcomes the above-mentioned drawback of common single chamber catheter is to adopt the double channel foley balloon indwelling catheter that has fixture to carry out bladder stoma, but because the external end head of this catheter is Y type bipitch structure, trocar sheath is integrally-built punctio vesicae soap, its trocar sheath can't break away from catheter after double channel foley balloon indwelling catheter inserts bladder, so inapplicable.

The purpose of this utility model provides a kind of trocar sheath dissection type punctio vesicae soap, and it can break away from catheter with trocar sheath easily at double channel foley balloon indwelling catheter after its trocar sheath inserts bladder.

For achieving the above object, the technical solution adopted in the utility model is the trocar sheath of soap to be cut open along its axis form two semicircular pipes, one end of pipe has dop, pipe is structure as a whole with dop, dop is together cut open with pipe, dop top outer wall is provided with screw thread, can be tightened to one by nut, have openings on the sidewall of nut, form the opening nut, do not misplace when the integrator in order to make the trocar sheath cut open, correspondence is provided with alignment pin and locating hole on two sections of dop, have groove on the end edge of dop, the convex clip on the corresponding needle body can make needle body and trocar sheath rotate synchronously.During use, catheter is extracted trocar sheath after inserting bladder along the soap trocar sheath, backs out the nut on the trocar sheath dop, nut can be broken away from urinary catheter from its opening part, and the trocar sheath subdivision is opened and can be broken away from urinary catheter.

Because the trocar sheath of soap has adopted split type structure in the above-mentioned solution, after this trocar sheath inserts bladder, can easily trocar sheath be broken away from catheter at double channel foley balloon indwelling catheter, solve the problem that integrally-built trocar sheath can't break away from double channel foley balloon indwelling catheter effectively.

Below in conjunction with drawings and Examples this utility model is done and to be described in further detail.

Fig. 1 is the structural representation of this utility model trocar sheath dissection type punctio vesicae soap.

Fig. 2 is the structural representation of middle needle body embodiment illustrated in fig. 1.

Fig. 3-Fig. 5 be embodiment illustrated in fig. 1 in the structural representation of trocar sheath subdivision when opening.

Fig. 6 is the structural representation of split shed nut embodiment illustrated in fig. 1.

Fig. 7 is the right view of the trocar sheath opened of subdivision shown in Figure 4.

In the structural representation of Fig. 1-shown in Figure 7, one end and the dop 3 of trocar sheath 2 are structure as a whole, trocar sheath 2 and dop 3 are together cut open along axis forms two semicircular pipes, the top outer wall of dop 3 is provided with screw thread 5 can be fastening by nut 9, one opening 10 is arranged on the sidewall of nut 9, correspondence is provided with locating hole 6 and alignment pin 7 on two sections of dop 3, two grooves 8 opening along the upper edge warp at the end of dop, corresponding with the convex clip 4 on the needle body 1, during use, the trocar sheath of cutting open 2 is integrated, nut 9 is fastened on the dop 3 vertical screw threads 5, trocar sheath 2 is enclosed within on the needle body 1, the groove 8 on the dop 3 is corresponding with convex clip 4 on the needle body 1 again, and needle body 1 and trocar sheath 2 after inserting bladder are together extracted needle body 1, double channel foley balloon indwelling catheter is inserted bladders and will trocar sheath 2 be extracted behind the catheter airbag aeration again along trocar sheath 2, back out the nut 9 on the dop 3, nut breaks away from catheter from its opening 10, and trocar sheath 2 subdivisions are opened and can be broken away from catheter.

Claims

1, a kind of trocar sheath dissection type punctio vesicae soap, constitute by needle body and trocar sheath, it is characterized in that: trocar sheath (2) and dop (3) are structure as a whole, trocar sheath (2) and dop (3) are cut open along axis forms two semicircular pipes, the top outer wall of dop (3) is provided with screw thread (5), can be fastening by nut (9), an opening (10) is arranged on the wall of nut (9).

2. trocar sheath dissection type punctio vesicae soap as claimed in claim 1 is characterized in that: correspondence is provided with the alignment pin (7) of locating hole (6) on two sections of dop (3).

3, trocar sheath dissection type punctio vesicae soap as claimed in claim 1 or 2 is characterized in that, the end of dop (3) along on have groove (8), needle body (1) is gone up respective slot (8) and is provided with convex clip (4).