CN217907872U - Tissue anastomat - Google Patents
Tissue anastomat Download PDFInfo
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- CN217907872U CN217907872U CN202221667099.7U CN202221667099U CN217907872U CN 217907872 U CN217907872 U CN 217907872U CN 202221667099 U CN202221667099 U CN 202221667099U CN 217907872 U CN217907872 U CN 217907872U
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- suture
- needle
- hole
- wall
- connecting hole
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Abstract
The embodiment of the utility model discloses a tissue anastomat belongs to the operation and sews up the apparatus field. The utility model protects a tissue anastomat, which comprises a suture needle, a suture line and a connecting piece; the sewing needle includes needle point, backshank and connects the needle point with the needle body of backshank, be equipped with the connecting hole on the backshank, the connecting piece can install in the connecting hole, and will the connector clamp of stylolite is located the connecting piece with between the pore wall of connecting hole. Through setting up connecting piece and connecting hole, make the connecting piece can install in the connecting hole, make the connector of stylolite can press from both sides and establish between the pore wall of connecting piece and connecting hole, overcome prior art suture difficult and the problem of the pinhole connection of sewing needle.
Description
Technical Field
The utility model belongs to the surgical suture instrument field especially relates to a tissue anastomat.
Background
The tissue stapler includes a suture needle and a suture thread for suturing body tissue. The existing suture needle is provided with a needle hole, a suture thread penetrates through the needle hole to be connected with the suture needle, and the diameter of the suture thread and the needle hole of the suture needle are small, so that the suture thread is inconvenient to connect, the suture needle and the suture thread are connected insecurely easily, the suture thread is separated from the needle hole, the suture thread is broken, and the needle falls in the operation process, and the operation process and the safety are influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a tissue anastomat has solved difficult connection of sewing needle and stylolite and has connected insecure problem.
The utility model protects a tissue anastomat, which comprises a suture needle, a suture line and a connecting piece; the sewing needle includes needle point, backshank and connects the needle point with the needle body of backshank, be equipped with the connecting hole on the backshank, the connecting piece can install in the connecting hole, and will the connector clamp of stylolite is located the connecting piece with between the pore wall of connecting hole.
Implement the embodiment of the utility model provides a, will have following beneficial effect:
through setting up connecting piece and connecting hole, make the connecting piece can install in the connecting hole, make the connector of stylolite can press from both sides and establish between the pore wall of connecting piece and connecting hole, overcome prior art suture difficult and the problem of the pinhole connection of sewing needle. Through the fixing mode of clamping, the suture line and the suture needle are firmly connected, and the clamping mode can also prevent the suture line from being broken, thereby ensuring the smoothness and the safety of the operation process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
fig. 1 is a schematic structural view of a tissue stapler according to an embodiment of the present invention.
FIG. 2 is an enlarged partial schematic view of the tissue stapler of FIG. 1.
FIG. 3 is a cross-sectional view of the tissue stapler of FIG. 2.
In the drawings, 10, a suture needle; 11. a needle tip; 12. a needle body; 13. needle tail; 131. a second thread groove; 132. connecting holes; 20. a suture; 30. a connecting member; 31. a wire hole; 32. a straight slot; 33. a first thread groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a tissue stapler including a needle 10, a suture 20, and a connector 30. The suture needle 10 comprises a needle point 11, a needle tail 13 and a needle body 12 connecting the needle point 11 and the needle tail 13, wherein the needle tail 13 is provided with a connecting hole 132, a connecting piece 30 can be arranged in the connecting hole 132, and a connecting head of a suture thread 20 is clamped between the connecting piece 30 and the hole wall of the connecting hole 132. In order to enhance the strength of the suture needle 10, the needlepoint 11, the needlepoint 13 and the needle body 12 are usually integrally formed, and the material of the suture needle 10 may be stainless steel. According to the actual requirement, the connecting head of the suture thread 20 can be clamped between the connecting piece 30 and the connecting hole 132 after being bent or wound, so that the clamped volume of the suture thread 20 is increased, the suture thread 20 can be firmly connected with the suture needle 10, and the subsequent suture use is convenient. The suture thread 20 may be selected from the group consisting of nylon thread, catgut thread, nylon thread, polypropylene thread, polyester absorbable thread, polyester braided thread, metal suture thread, and the like.
By arranging the connecting piece 30 and the connecting hole 132, the connecting piece 30 can be arranged in the connecting hole 132, and the connecting head of the suture thread 20 can be clamped between the connecting piece 30 and the hole wall of the connecting hole 132, so that the problem that the suture thread 20 is not easy to be connected with the needle hole of the suture needle 10 in the prior art is solved. The suture line 20 and the suture needle 10 are firmly connected by the clamping fixing mode, and the suture line 20 can be prevented from being broken by the clamping fixing mode, so that the smoothness and the safety of the operation process are ensured.
The tissue anastomat protected by the utility model can be applied to the tension-reducing suture of human soft tissue in clinical treatment of departments such as obstetrics and gynecology, general surgery, first breast surgery, trauma surgery, burn department, plastic and cosmetic surgery, gastrointestinal and pancreatic surgery, orthopedics and the like.
In a specific embodiment, at least one of the outer wall of the connecting member 30 and the hole wall of the connecting hole 132 is provided with a stopper structure, and the stopper structure may be provided only on the wall of the connecting member 30 or the hole wall of the connecting hole 132. The limiting structures can also be arranged on the connecting piece 30 and the hole wall of the connecting hole 132 at the same time, and the number of the limiting structures can be one, two or more. The stop structure engages the connector of suture 20 to prevent the connector from disengaging from attachment hole 132.
Referring to fig. 2 to 3, in an embodiment, the connecting head of the suture 20 is a spiral structure, the outer wall of the connecting member 30 is provided with a first thread groove 33 adapted to the spiral structure, the hole wall of the connecting hole 132 is provided with a second thread groove 131 adapted to the spiral structure, and the spiral structure can be sleeved on the outer wall of the connecting member 30 and is in threaded connection with the hole wall of the connecting hole 132 to clamp the spiral structure between the groove wall of the first thread groove 33 and the groove wall of the second thread groove 131. The connecting piece 30 is also provided with a line hole 31 and a straight groove 32. The thread hole 31 facilitates passage of the suture 20. The slot 32 is convenient for a screwdriver to fasten or remove the connector 30. The helical structure may be the structure of the suture thread 20 itself, or a linear structure may be made into a helical structure. For example, the martensitic reverse phase transition finishing temperature of a conventional nickel-titanium alloy suture is 25 ℃ to 35 ℃, and the suture is generally in a straight line shape. Before sewing, the nickel-titanium memory alloy wire is soft at the temperature below 25 ℃, is easy to bend and deform under the action of external force, and can be subjected to heat setting treatment through a setting mold to form a spiral line structure, so that the nickel-titanium memory alloy wire is conveniently fixed between the groove wall of the first thread groove 33 and the groove wall of the second thread groove 131.
After being sewed into a human body, the nickel-titanium alloy suture line 20 generates martensite reverse phase transformation under the temperature environment of the human body, generates restoring force for restoring to the shape before deformation, enables the suture line 20 to be in a super-elastic state, forms durable extrusion on tissues at two sides of a wound, enables the tissues at two sides of the wound to be tightly matched together, promotes the wound to heal, and shortens the healing period.
In one embodiment, the outer wall of the connecting member 30 is further provided with a third thread, and the hole wall of the connecting hole 132 is further provided with a fourth thread, and the third thread and the fourth thread are threadedly coupled. The connecting member 30 is connected to the connecting hole 132. The suture 20 is interposed between the first and second screw grooves 33 and 131 to firmly couple the coupling member 30 and the coupling hole 132. Some sutures 20 are inherently soft and may cause the connection between the attachment hole 132 and the attachment member 30 to be weak, and thus, the provision of the third and fourth threads improves the connection between the attachment hole 132 and the attachment member 30.
In one embodiment, the connector of the suture 20 is an elastic loop formed by shaping a metal wire, and the outer diameter of the elastic loop is smaller than the diameter of the needle tail 13 and slightly larger than the major diameter of the second thread groove 131. The outer diameter of the elastic coil is slightly larger than the major diameter of the second thread groove 131, so that the elastic coil can be tightly engaged with the second thread groove 131 when being clamped in the second thread groove 131, and the suture thread 20 can be more easily clamped between the groove wall of the first thread groove 33 and the groove wall of the second thread groove 131.
In one embodiment, the connecting hole 132 is a blind hole extending in the axial direction of the needle 10, so that the suture thread 20 in the blind hole can be disposed in the axial direction of the needle 10 during the suturing process, and the suture thread 20 does not affect the suturing process. The connecting member 30 is a screw selected from stainless steel and the like. The screw thread connection effect of the screw is good, and the suture thread 20 can be firmly clamped in the connecting hole 132. The suture thread 20 is a metal wire selected from a material such as nitinol.
In another embodiment, the connecting member 30 is provided with a first engaging structure, the hole wall of the connecting hole 132 is provided with a second engaging structure, and the connecting member 30 can be inserted into the connecting hole 132, so that the first engaging structure and the second engaging structure are engaged with each other, so as to clamp the connecting head of the suture 20 between the connecting member 30 and the hole wall of the connecting hole 132. The first clamping structure and the second clamping structure are respectively provided with a clamping protrusion and a clamping groove, and the clamping protrusion and the clamping groove are connected in a clamping mode so that the first clamping structure and the second clamping structure can be clamped.
In another embodiment, connector 30 can be inserted into connecting hole 132 and interference fit with the wall of connecting hole 132 to clamp the connector of suture 20 between connector 30 and the wall of connecting hole 132.
In a particular embodiment, the cross-section of the needle tip has a shape selected from one or more of triangular, circular, spade, oval, trapezoidal and square. The cross section of the needle tip is selected according to the requirements of different suture operations, for example, the needle tip with the triangular cross section is used for suturing skin tissues, and the needle tip with the circular cross section is used for suturing tissues such as stomach and intestine.
The shape of the needle body comprises one or more than two of straight shape, curved shape, mixed shape of straight shape and curved shape, and mixed shape of curved shape and curved shape. The radian of the curved shape is selected from one or more than two of 1/4 arc, 3/8 arc, 1/2 arc and 5/8 arc. Different curvature arcs also correspond to different uses, for example, 1/4 arc for ophthalmic surgery and 1/2 arc for suturing tissues such as the stomach and the intestine.
In one embodiment, suture 20 has a diameter of 0.001mm to 1.3mm, and the length can be any length as desired. The diameter of the suture needle 10 is 0.2 mm-1.4 mm, and the chord length is set to any length according to actual requirements. The suture thread 20 and the suture needle 10 of different specifications are selected according to different suture positions.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, therefore, all equivalent variations of the present invention are intended to be covered by the present invention.
Claims (10)
1. A tissue anastomat is characterized by comprising a suture needle, a suture line and a connecting piece; the suture needle comprises a needle point, a needle tail and a connecting needle body, wherein the needle point is connected with the needle body of the needle tail, a connecting hole is formed in the needle tail, the connecting piece can be installed in the connecting hole, and the connecting head of the suture line is clamped and arranged between the connecting piece and the hole wall of the connecting hole.
2. The tissue stapler of claim 1, wherein at least one of the outer wall of the connecting member and the wall of the connecting hole is provided with a stopper structure, the stopper structure engaging with the connector of the suture to prevent the connector from being disengaged from the connecting hole.
3. The tissue anastomat of claim 2, wherein the joint of the suture line is a spiral line structure, the outer wall of the connecting piece is provided with a first thread groove matched with the spiral line structure, the hole wall of the connecting hole is provided with a second thread groove matched with the spiral line structure, and the spiral line structure can be sleeved on the outer wall of the connecting piece and is in threaded connection with the hole wall of the connecting hole so as to clamp the spiral line structure between the groove wall of the first thread groove and the groove wall of the second thread groove.
4. The tissue stapler of claim 3, wherein the outer wall of the connecting member is further provided with a third thread, the wall of the connecting hole is further provided with a fourth thread, and the third thread and the fourth thread are threadedly connected.
5. The tissue stapler of claim 4, wherein the connecting head of the suture is an elastic coil formed by shaping a metal wire, wherein an outer diameter of the elastic coil is smaller than a diameter of the needle tail, and the outer diameter of the elastic coil is larger than a major diameter of the second thread groove.
6. The tissue stapler of claim 1, wherein the connecting hole is a blind hole extending in an axial direction of the suture needle, and the suture is a wire.
7. The tissue stapler of claim 1, wherein a first engaging structure is disposed on the connecting member, a second engaging structure is disposed on a hole wall of the connecting hole, and the connecting member is inserted into the connecting hole, so that the first engaging structure engages with the second engaging structure to clamp the connecting head of the suture between the connecting member and the hole wall of the connecting hole.
8. The tissue stapler of claim 1, wherein the connecting member is insertable into the connecting hole and is in interference fit with a hole wall of the connecting hole to sandwich the connector of the suture between the connecting member and the hole wall of the connecting hole.
9. The tissue stapler of any one of claims 1-8,
the cross section of the needle tip is in one or more than two of a triangle, a circle, a shovel, an ellipse, a trapezoid and a square shape;
the shape of the needle body comprises one or more than two of straight shape, curved shape, mixed shape of straight shape and curved shape, and mixed shape of curved shape and curved shape; the radian of the curved shape is selected from one or more than two of 1/4 arc, 3/8 arc, 1/2 arc and 5/8 arc.
10. The tissue stapler of any one of claims 1-8,
the diameter of the suture line is 0.001 mm-1.3 mm;
the diameter of the suture needle is 0.2 mm-1.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221667099.7U CN217907872U (en) | 2022-06-30 | 2022-06-30 | Tissue anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221667099.7U CN217907872U (en) | 2022-06-30 | 2022-06-30 | Tissue anastomat |
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| Publication Number | Publication Date |
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| CN217907872U true CN217907872U (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221667099.7U Active CN217907872U (en) | 2022-06-30 | 2022-06-30 | Tissue anastomat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116509478A (en) * | 2023-04-18 | 2023-08-01 | 南京思脉德医疗科技有限公司 | Crimping connector and crimping assembly of vascular stapler |
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2022
- 2022-06-30 CN CN202221667099.7U patent/CN217907872U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116509478A (en) * | 2023-04-18 | 2023-08-01 | 南京思脉德医疗科技有限公司 | Crimping connector and crimping assembly of vascular stapler |
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