CN211300233U - Nondestructive cystostomy external member - Google Patents

Abstract

The utility model discloses a nondestructive cystostomy external member, which comprises an ostomy tube main body, a guide head and a puncture needle, wherein the puncture needle passes through the ostomy tube main body, the guide head is fixed at the bottom of the ostomy tube main body, the puncture needle passes through the ostomy tube main body from the top opening of the ostomy tube main body and passes out of the bottom opening of the ostomy tube main body through the guide head, the guide head is divided into a rectangular hole guide head and a round hole guide head, the puncture needle is divided into a fixed head puncture needle and a noninvasive puncture needle, the fixed head puncture needle is matched with the rectangular hole guide head and installed in the ostomy tube main body, and the round hole guide head is matched with the noninvasive puncture needle and installed in the ostomy tube main body; the utility model discloses simple structure possesses not damaged puncture function, hemostasis by compression function, when changing a great deal of advantages such as protection fistulization passageway function and low price simultaneously, when being favorable to the operation, reduces the complication, reduces the postoperative and bleeds, reduces the patient expenditure, practices thrift the medical insurance and pays out.

Description

Nondestructive cystostomy external member

Technical Field

The utility model relates to the technical field of medical equipment, specifically a not damaged bladder fistulization external member.

Background

Under the conditions that a urinary catheter of a patient with urinary retention fails to be placed or after urethral damage or urinary incontinence of a neurogenic bladder patient occurs, the cystocentesis is the only remedy to solve the urination of the patient, and is widely applied to all levels of hospitals. The perfect bladder puncture fistulization is not needed to damage the bladder, the prostate (particularly male patients) and the tumor tissues in the bladder during puncture, and also has the advantages of compression hemostasis (bleeding of puncture fistulization channels), convenience for bladder irrigation, convenience for postoperative fistulization tube replacement, low price and the like. In the traditional bladder puncture fistulization tube, a puncture needle is an extension of a needle head of a common syringe, so that the tube does not have a nondestructive puncture function, the head end of the bladder fistulization tube is mushroom-shaped, namely, the head is large and the body is small, and the mushroom-shaped head end cannot be contracted, so that the puncture cannot be guaranteed to be free from damage to prostate protruding into the bladder or tumor tissues in the bladder during the bladder puncture fistulization; secondly, the mushroom-shaped fistulation tube is placed after the successful puncture, once the bleeding occurs at the bladder puncture hole, the fistulation tube is pulled back, the mushroom-shaped head of the bladder fistulation tube is contacted with the bladder puncture hole, and the compression hemostasis cannot be realized, so that the hematuria of a patient who adopts the method for bladder puncture fistulation basically appears for 2-3 days after the operation; thirdly, place bladder fistulization behind the pipe, generally 2 weeks need to be changed fistulization pipe one, change once about 4 weeks afterwards, because 2 weeks of postoperative, bladder fistulization passageway is still fragile, because this fistulization pipe head end is "mushroom", it is big-end-small promptly, and "mushroom" head end can't shrink, consequently, often need drag out with effort when pulling out, at this in-process, probably draw the hemorrhage of fistulization passageway damage because of the head is big, probably lead to the fracture of fistulization passageway to lose because of dragging when serious, need bladder puncture fistulization again.

At present, most clinicians adopt percutaneous nephrocentesis sets to perform bladder puncture fistulization, one of the defects is that the fistulization tube air bag is only 2-3ml, and if the hemorrhage of a bladder puncture hole is large, the compression hemostasis effect cannot be achieved; secondly, the puncture needle in the percutaneous renal puncture suit does not have the function of nondestructive puncture, and the prostate protruding into the bladder or the tumor tissue in the bladder is difficult to avoid being damaged; thirdly, the price is high, and the price of each set of percutaneous renal puncture suit is more than 2000 yuan.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a not damaged bladder fistulization external member to solve the problem that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a not damaged bladder fistulization external member, includes fistulization pipe main part, seeker and pjncture needle, the pjncture needle is worn to be equipped with fistulization pipe main part, the seeker is being fixed to the bottom of fistulization pipe main part, the pjncture needle is worn to establish fistulization pipe main part and is worn out the bottom opening of fistulization pipe main part through the seeker by the open-top of fistulization pipe main part, the seeker divide into rectangular hole seeker and round hole seeker, the pjncture needle divide into fixed head pjncture needle and do not have the pjncture needle, fixed head pjncture needle and rectangular hole seeker cooperation are installed in fistulization pipe main part, round hole seeker and do not have the p.

As a further aspect of the present invention: the appearance of fistulization pipe main part is the r type, and the fistulization pipe main part is made by rubber soft materials, and fistulization pipe main part top is the operation mouth, and the drain hole that is linked together with fistulization pipe main part inner tube is seted up to operation mouthful bottom, and the one end fixedly connected with inflation head of start operation mouth, the bottom of fistulization pipe main part have set gradually annular gasbag, weeping hole and fistulization pipe stiff end from top to bottom, be equipped with the gas storage ring between gasbag and the fistulization pipe main part inner wall, be connected through inflating the passageway between inflation head and the gas storage ring, the built-in movable plug that is used for controlling the gasbag to fill gassing of inflation head, be equipped with the drain hole of well expert between operation mouth and the stiff end.

As a further aspect of the present invention: the rectangular hole guide head is in a bullet shape and comprises a rectangular channel, a guide head fixing end and a guide head limit position, the rectangular hole guide head is located at the top end and is communicated with the middle of the rectangular channel, the guide head fixing end and the guide head limit position, the rectangular hole guide head is made of hard materials, the rectangular hole guide head is fixedly connected with the fistulization tube fixing end through the guide head fixing end, the fixing head puncture needle comprises a pushing type operating handle, a blade part and a connecting rod, the pushing type operating handle fixes the blade part through the connecting rod, and the connecting rod is connected with the blade part to form.

As a further aspect of the present invention: the cutting part is a pointed-end blade or a round-end blade, and the part of the pointed-end blade or the round-end blade connected with the connecting rod is of a flat structure.

As a further aspect of the present invention: the round hole seeker is in a bullet shape and comprises a round channel, a seeker fixing end and a seeker limit, the round hole seeker is made of hard materials, the round hole seeker is fixedly connected with the fistulization tube fixing end through the seeker fixing end, the noninvasive puncture needle comprises a holding type operating handle, a puncture inner core, a movable sleeve and a fixed sleeve, a single-side opening is formed in the hollow top of the inside of the handle, the puncture inner core, the movable sleeve and the fixed sleeve are installed in the handle after being sleeved from inside to outside, the puncture inner core and the fixed sleeve are fixedly installed at the tail end and the front end of the handle respectively, the movable sleeve comprises a sleeve main body and a movable sleeve limit end fixed at the top of the sleeve main body, communicated inner core sliding holes are formed in the movable sleeve limit end and the sleeve main body, and the sleeve main body is sleeved in the opening in the top of the handle through the fixed sleeve, the top end of the sleeve main body is propped against a reset spring which is sleeved at the limit end of the puncture inner core.

As a further aspect of the present invention: the puncture inner core comprises inner core spacing end, inner core needle body and puncture cutting part, the inner core needle body is column or platykurtic, inner core sliding hole is coincide with inner core needle body structure, the protruding round hole guide head certain length in activity sleeve top just wraps the puncture cutting part of puncture inner core completely.

As a further aspect of the present invention: the top of the movable sleeve is in a dome shape.

As a further aspect of the present invention: the diameter of the limiting end of the puncture inner core is larger than that of an inner core sliding hole of the movable sleeve, and the distance from the front end of the limiting end of the puncture inner core to the tail end of the limiting end of the movable sleeve is equal to the distance from the top end of the movable sleeve to the top end of the round hole seeker in the original state.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure possesses not damaged puncture function, hemostasis by compression function, when changing a great deal of advantages such as protection fistulization passageway function and low price simultaneously, when being favorable to the operation, reduces the complication, reduces the postoperative and bleeds, reduces the patient expenditure, practices thrift the medical insurance and pays out.

Drawings

Fig. 1 is a schematic structural view of a nondestructive cystostomy kit when a fixed-head puncture needle is assembled.

Fig. 2 is a schematic structural diagram of A in the atraumatic cystostomy kit.

Fig. 3 is a structural schematic diagram of a fistulization tube main body in the atraumatic cystostomy kit.

Figure 4 is a longitudinal cross-sectional view of the body of the ostomy tube in an atraumatic cystostomy kit.

Fig. 5 is a schematic view of the structure of C in the atraumatic cystostomy kit.

Fig. 6 is a schematic structural view of a rectangular hole guide head in the atraumatic cystostomy kit.

Fig. 7 is a structural schematic diagram of a fixed-head puncture needle in an atraumatic cystostomy kit.

FIG. 8 is a schematic view showing the structure of the fixed-head puncture needle F fitted with the tip blade in the atraumatic cystostomy kit.

Fig. 9 is a schematic structural view of the fixed-head puncture needle F when the round head blade is assembled in the atraumatic cystostomy kit.

Fig. 10 is a schematic structural view of a round hole guide head in the atraumatic cystostomy kit.

Fig. 11 is a schematic structural diagram of the inside of a round hole guide head in the atraumatic cystostomy kit.

Fig. 12 is a schematic view of the atraumatic cystostomy kit with the atraumatic tip needle assembled.

Fig. 13 is a schematic view of the structure of H in the atraumatic cystostomy kit.

Fig. 14 is a structural schematic view of a non-invasive puncture needle in a non-invasive cystostomy kit.

Fig. 15 is a schematic view of the structure of J in the atraumatic cystostomy kit.

Fig. 16 is a schematic view of the structure of K in the atraumatic cystostomy kit.

Fig. 17 is a schematic structural view of a puncture inner core in an atraumatic cystostomy kit.

Fig. 18 is a schematic view of the structure of the movable sleeve in the atraumatic cystostomy kit.

Fig. 19 is a schematic view of the structure of O in the atraumatic cystostomy kit.

In the figure:

1-fistulization tube main body 2-guide head 3-fixed head puncture needle 4-non-invasive puncture needle

11-operation opening 12-air bag 13-liquid seepage hole 14-fistulization tube fixed end

15-liquid guide hole 16-gas storage ring 17-inflation head 18-movable rubber plug

19-inflation channel 21-rectangular hole guide head 22-circular hole guide head 31-push type operating handle

32-connecting rod 33-connecting rod limit 34-pointed edge 35-round head edge

41-holding type operating handle 42-puncture inner core 43-movable sleeve 44-fixed sleeve

45-return spring 211-rectangular channel 212-seeker fixed end 213-seeker limit

221-circular channel 421-inner core limit end 422-inner core needle body 423-puncture blade part

431-movable sleeve limiting end 432-sleeve main body 433-inner core sliding hole

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-9, in an embodiment of the present invention, a nondestructive bladder fistulization kit includes a fistulization tube main body 1, a guide head 2 and a puncture needle, the guide head 2 is fixed at the bottom of the fistulization tube main body 1, the puncture needle penetrates through the fistulization tube main body 1 from the top opening of the fistulization tube main body 1 and penetrates out of the bottom opening of the fistulization tube main body 1 through the guide head 2, the guide head 2 is a rectangular hole guide head 21, the puncture needle is a fixed head puncture needle 3, and the fixed head puncture needle 3 is installed in the fistulization tube main body 1 in cooperation with the rectangular hole guide head 21;

the appearance of fistulization pipe main part 1 is the r type, and fistulization pipe main part 1 is made by rubber soft materials, and 1 top of fistulization pipe main part is operation mouthful 11, and the drain hole 15 that is linked together with 1 inner tube of fistulization pipe main part is seted up to operation mouthful 11 bottom, and the one end fixedly connected with inflation head 17 that is close to operation mouthful 11, and the bottom of fistulization pipe main part 1 has set gradually annular gasbag 12, infiltration hole 13 and fistulization pipe stiff end 14 from top to bottom, be equipped with gas storage ring 16 between gasbag 12 and the 1 inner wall of fistulization pipe main part, be connected through inflation channel 19 between inflation head 17 and the gas storage ring 16, inflation head 17 embeds is used for controlling gasbag 12 to fill the movable plug 18 of gassing, be equipped with well logical drain hole 15 between operation mouthful 11 and the stiff end 14.

The rectangular hole guide head 21 is in a bullet shape, the rectangular hole guide head 21 comprises a rectangular channel 211 which is positioned at the top end and is communicated with the rectangular channel, a guide head fixing end 212 and a guide head limiting end 213, the rectangular hole guide head 21 is made of hard material, the rectangular hole guide head 21 is fixedly connected with the fistulization tube fixing end 14 through the guide head fixing end 212, the fixed head puncture needle 3 comprises a push type operating handle 31, a blade part and a connecting rod 32, the blade part is fixed on the push type operating handle 31 through the connecting rod 32, the connecting rod 32 and the blade part are connected to form a limit step 33, when the fixed head puncture needle 3 is used, the blade part at the front end of the fixed head puncture needle 3 passes through the rectangular channel 211 of the rectangular hole guide head 21 until the connecting rod limit 33 of the fixed head puncture needle 3 is abutted against the guide head limit 213, the fixed head puncture needle 3 drives the assembled and fixed fistulization tube main body 1 and the rectangular hole guide head 21 to move forwards;

the blade part is a pointed blade 34 or a round head blade 35, and the part of the pointed blade 34 or the round head blade 35 connected with the connecting rod 32 is of a flat structure, so that the tissue can be conveniently cut.

The utility model discloses a theory of operation is:

when in use, firstly, the B ultrasonic is adopted at the 2-3cm position on the pubic bone to observe the filling and the inner condition of the bladder and determine the bladder puncture point, the injector extracts lidocaine to perform local anesthesia from the puncture point and the puncture point to the bladder wall, the sharp blade longitudinally cuts the skin and the subcutaneous tissue at the puncture point, the length is about 1cm, under the monitoring of the B ultrasonic, the puncture needle is provided to gradually enter the bladder with force along the incision in the B ultrasonic monitoring direction, after the air bag 12 partially and completely enters the bladder, the injector extracts 5-10ml of physiological saline (or directly inflates) to inject along the inflation head 17 of the fistulization tube main body 1, the puncture needle is pulled out, the fistulization tube main body 1 is pulled back slightly, after the air bag 2 is contacted with the bladder wall, the air bag 12 is tightly attached to the bladder wall at the puncture hole, the blood can be well pressed to the puncture hole, the fistulization tube main body 1 (the fistulization tube at the, external urine bag, the art is finished, when changing or getting rid of fistulization pipe main part 1, through inflating head 17 in with gasbag 12 normal saline or air take out, make gasbag 12 reply original state, then with fistulization pipe main part 1 pull out can, easy operation, not damaged to the fistulization passageway.

Example 2

Referring to fig. 10 to 19, the present embodiment is different from embodiment 1 in that:

the seeker 2 is a round hole seeker 22, the puncture needle is divided into a non-invasive puncture needle 4, and the round hole seeker 22 and the non-invasive puncture needle 4 are installed on the fistula main body 1 in a matched mode;

the round hole guide head 22 is in a bullet shape, the round hole guide head 22 comprises a round channel 221, a guide head fixing end 212 and a guide head limiting end 213, the round hole guide head 22 is made of hard materials, the round hole guide head 22 is fixedly connected with the fistulization tube fixing end 14 through the guide head fixing end 212, the non-invasive puncture needle 4 comprises a holding type operating handle 41, a puncture inner core 42, a movable sleeve 43 and a fixed sleeve 44, a single-side opening is formed in the hollow top of the inside of the handle 41, the puncture inner core 42, the movable sleeve 43 and the fixed sleeve 44 are sleeved from inside to outside and then installed in the handle 41, the puncture inner core 42 and the fixed sleeve 44 are fixedly installed at the tail end and the front end of the handle 41 respectively, the movable sleeve 43 comprises a sleeve main body 432 and a movable sleeve limiting end 431 fixed at the top of the sleeve main body 432, and communicated inner core sliding holes 433 are arranged in the movable sleeve limiting end, the sleeve main body 432 is sleeved in the top opening of the handle 41 through the fixed sleeve 44, the top end of the sleeve main body 432 abuts against the reset spring 45 sleeved on the puncture inner core limiting end 421, when the noninvasive puncture needle 4 is used, the movable sleeve 43 at the front end of the noninvasive puncture needle passes through the circular channel 221 until the front end of the fixed sleeve 44 abuts against the guide head limiting end 213, the fixed sleeve 44 drives the fistulization tube main body 1 and the round hole guide head 22 which are assembled and fixed to move forwards, the tail end of the limiting end 431 abuts against the reset spring 45 in an original state, and the front end abuts against the tail end of the fixed sleeve 44 to prevent the fistulization tube main body from being separated from the puncture inner core 42 under the action of the reset spring 45;

the puncture inner core 42 consists of an inner core limiting end 421, an inner core needle body 422 and a puncture blade 423, the inner core needle body 422 is columnar or flat, the inner core sliding hole 433 is matched with the inner core needle body 422 in structure, the top of the movable sleeve 43 protrudes out of the circular hole guide head 22 for a certain length and completely covers the puncture blade 423 of the puncture inner core 42;

the top of the movable sleeve 43 is in a dome shape;

the diameter of the puncture inner core limiting end 421 is slightly larger than the inner core sliding hole 433 of the movable sleeve 43, in an original state, the distance from the front end of the puncture inner core limiting end 421 to the tail end of the movable sleeve limiting end 431 is equal to the distance from the top end of the movable sleeve 43 in the original state to the top end of the round hole guide head 22, in a puncture process, due to tissue resistance, the movable sleeve 43 retreats to be flush with the top end of the round hole guide head 22 (at the moment, the tail end of the movable sleeve limiting end 431 abuts against the front end of the puncture inner core limiting end 421), the inner puncture blade part 423 is exposed, after the noninvasive puncture needle 4 penetrates through tissues and enters the bladder, due to the disappearance of resistance, the movable sleeve 43 restores to the original position under the action of the reset spring 45, the.

The utility model discloses a theory of operation is:

when in use, firstly, the B ultrasonic is adopted at the 2-3cm position on the pubic bone to observe the filling and the inner condition of the bladder and determine the bladder puncture point, the injector extracts lidocaine to perform local anesthesia from the puncture point and the puncture point to the bladder wall, the sharp blade longitudinally cuts the skin and the subcutaneous tissue at the puncture point, the length is about 1cm, under the monitoring of the B ultrasonic, the puncture needle is provided to gradually enter the bladder with force along the incision in the B ultrasonic monitoring direction, after the air bag 12 partially and completely enters the bladder, the injector extracts 5-10ml of physiological saline (or directly inflates) to inject along the inflation head 17 of the fistulization tube main body 1, the puncture needle is pulled out, the fistulization tube main body 1 is pulled back slightly, after the air bag 2 is contacted with the bladder wall, the air bag 12 is tightly attached to the bladder wall at the puncture hole, the blood can be well pressed to the puncture hole, the fistulization tube main body 1 (the fistulization tube at the, external urine bag, the art is finished, when changing or getting rid of fistulization pipe main part 1, through inflating head 17 in with gasbag 12 normal saline or air take out, make gasbag 12 reply original state, then with fistulization pipe main part 1 pull out can, easy operation, not damaged to the fistulization passageway.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides a not damaged bladder fistulization external member, includes fistulization pipe main part (1), seeker (2) and pjncture needle, its characterized in that, seeker (2) are being fixed to the bottom of fistulization pipe main part (1), the pjncture needle is worn to establish fistulization pipe main part (1) and is worn out the bottom opening of fistulization pipe main part (1) through seeker (2) by the open-top of fistulization pipe main part (1), seeker (2) divide into rectangular hole seeker (21) and round hole seeker (22), the pjncture needle divide into fixed head pjncture needle (3) and non-invasive pjncture needle (4), fixed head pjncture needle (3) and rectangular hole seeker (21) cooperation are installed in fistulization pipe main part (1), round hole seeker (22) and non-invasive pjncture needle (4) cooperation are installed in fistulization pipe main part (1).

2. The nondestructive bladder fistulization kit according to claim 1, wherein the fistulization tube main body (1) is r-shaped in appearance, the fistulization tube main body (1) is made of soft rubber material, the top end of the fistulization tube main body (1) is an operation port (11), a liquid guide hole (15) communicated with the inner tube of the fistulization tube main body (1) is formed in the bottom of the operation port (11), an inflation head (17) is fixedly connected to one end close to the operation port (11), an annular air bag (12), a liquid leakage hole (13) and a fistulization tube fixing end (14) are sequentially arranged at the bottom of the fistulization tube main body (1) from top to bottom, an air storage ring (16) is arranged between the air bag (12) and the inner wall of the fistulization tube main body (1), the inflation head (17) and the air storage ring (16) are connected through an inflation channel (19), a movable rubber plug (18) for controlling the air bag (12) to inflate and deflat, a liquid guide hole (15) communicated with the middle is arranged between the operation opening (11) and the fixed end (14).

3. The atraumatic cystostomy kit according to claim 2, characterized in that the rectangular hole guide head (21) is bullet-shaped in shape, the rectangular hole guide head (21) comprises a rectangular channel (211) which is arranged at the top end and is through in, a guide head fixing end (212) and a guide head limiting (213), the rectangular hole guide head (21) is made of hard material, the rectangular hole guide head (21) is fixedly connected with the fistulization tube fixing end (14) through the guide head fixing end (212), the fixed head puncture needle (3) comprises a push type operating handle (31), a blade part and a connecting rod (32), the push type operating handle (31) fixes the blade part through the connecting rod (32), and the connecting rod (32) is connected with the blade part to form a limiting step (33).

4. The atraumatic cystostomy kit according to claim 3, characterized in that the blade is a pointed blade (34) or a rounded blade (35), and the connection part of the pointed blade (34) or the rounded blade (35) and the connecting rod (32) is a flat structure.

5. The atraumatic bladder fistulization kit as claimed in claim 1, wherein the round hole guide head (22) is bullet-shaped in shape, the round hole guide head (22) comprises a round channel (221) which is located at the top end and is hollow in the middle, a guide head fixing end (212) and a guide head limiting end (213), the round hole guide head (22) is made of hard material, the round hole guide head (22) is fixedly connected with the fistulization tube fixing end (14) through the guide head fixing end (212), the atraumatic needle (4) comprises a holding type operating handle (41), a puncture inner core (42), a movable sleeve (43) and a fixed sleeve (44), the hollow top inside the handle (41) is provided with a single-side opening, the puncture inner core (42), the movable sleeve (43) and the fixed sleeve (44) are sleeved from inside to outside and then installed in the handle (41), and the puncture inner core (42) and the fixed sleeve (44) are respectively and fixedly installed at the tail end and the front end, the movable sleeve (43) comprises a sleeve main body (432) and a movable sleeve limiting end (431) fixed to the top of the sleeve main body (432), an inner core sliding hole (433) communicated with the inner core sliding hole is formed in the movable sleeve limiting end (431) and the sleeve main body (432), the sleeve main body (432) is sleeved in a top opening of the handle (41) through a fixed sleeve (44), and the top end of the sleeve main body (432) is abutted to a return spring (45) sleeved on the puncture inner core limiting end (421).

6. The atraumatic cystostomy kit according to claim 5, characterized in that the puncture inner core (42) consists of an inner core limiting end (421), an inner core needle body (422) and a puncture blade (423), the inner core needle body (422) is columnar or flat, the inner core sliding hole (433) is matched with the inner core needle body (422) in structure, the top of the movable sleeve (43) protrudes out of the round hole guiding head (22) for a certain length and completely covers the puncture blade (423) of the puncture inner core (42).

7. The atraumatic cystostomy kit according to claim 5, characterized in that the movable sleeve (43) is domed at the top.

8. The atraumatic cystostomy kit according to claim 6, characterized in that the puncture core limiting end (421) has a diameter larger than the core sliding hole (433) of the movable sleeve (43), and the distance from the front end of the puncture core limiting end (421) to the end of the movable sleeve limiting end (431) is equal to the distance from the top end of the movable sleeve (43) to the top end of the round hole guide head (22) in the original state.

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